mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
21edc42f4e
GDB doesn't insert software single step breakpoint if the instruction
branches to itself, so that the program can't stop after command "si".
(gdb) b 32
Breakpoint 2 at 0x8680: file git/gdb/testsuite/gdb.base/branch-to-self.c, line 32.
(gdb) c
Continuing.
Breakpoint 2, main () at gdb/git/gdb/testsuite/gdb.base/branch-to-self.c:32
32 asm (".Lhere: " BRANCH_INSN " .Lhere"); /* loop-line */
(gdb) si
infrun: clear_proceed_status_thread (Thread 3991.3991)
infrun: proceed (addr=0xffffffff, signal=GDB_SIGNAL_DEFAULT)
infrun: step-over queue now empty
infrun: resuming [Thread 3991.3991] for step-over
infrun: skipping breakpoint: stepping past insn at: 0x8680
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sending packet: $Z0,8678,4#f3...Packet received: OK
infrun: skipping breakpoint: stepping past insn at: 0x8680
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sending packet: $Z0,b6fe86c8,4#82...Packet received: OK
infrun: resume (step=1, signal=GDB_SIGNAL_0), trap_expected=1, current thread [Thread 3991.3991] at 0x868
breakpoint.c:should_be_inserted thinks the breakpoint shouldn't be
inserted, which is wrong. This patch restrict the condition that
only skip the non-single-step breakpoints if they are inserted at
the place we are stepping over, however we don't want to skip
single-step breakpoint if its thread is the thread we are stepping
over, so in this patch, I add a thread num in 'struct step_over_info'
to record the thread we're stepping over.
gdb:
2016-04-25 Yao Qi <yao.qi@linaro.org>
* breakpoint.c (should_be_inserted): Return 0 if the location's
owner is not single step breakpoint or single step breakpoint's
thread isn't the thread which is stepping past a breakpoint.
* gdbarch.sh (software_single_step): Update comments.
* gdbarch.h: Regenerated.
* infrun.c (struct step_over_info) <thread>: New field.
(set_step_over_info): New argument 'thread'. Callers updated.
(clear_step_over_info): Set field thread to -1.
(thread_is_stepping_over_breakpoint): New function.
* infrun.h (thread_is_stepping_over_breakpoint): Declaration.
2505 lines
88 KiB
Bash
Executable File
2505 lines
88 KiB
Bash
Executable File
#!/bin/sh -u
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# Architecture commands for GDB, the GNU debugger.
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#
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# Copyright (C) 1998-2016 Free Software Foundation, Inc.
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#
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# This file is part of GDB.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Make certain that the script is not running in an internationalized
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# environment.
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LANG=C ; export LANG
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LC_ALL=C ; export LC_ALL
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compare_new ()
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{
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file=$1
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if test ! -r ${file}
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then
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echo "${file} missing? cp new-${file} ${file}" 1>&2
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elif diff -u ${file} new-${file}
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then
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echo "${file} unchanged" 1>&2
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else
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echo "${file} has changed? cp new-${file} ${file}" 1>&2
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fi
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}
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# Format of the input table
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read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
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do_read ()
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{
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comment=""
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class=""
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# On some SH's, 'read' trims leading and trailing whitespace by
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# default (e.g., bash), while on others (e.g., dash), it doesn't.
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# Set IFS to empty to disable the trimming everywhere.
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while IFS='' read line
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do
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if test "${line}" = ""
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then
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continue
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elif test "${line}" = "#" -a "${comment}" = ""
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then
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continue
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elif expr "${line}" : "#" > /dev/null
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then
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comment="${comment}
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${line}"
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else
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# The semantics of IFS varies between different SH's. Some
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# treat ``::' as three fields while some treat it as just too.
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# Work around this by eliminating ``::'' ....
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line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
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OFS="${IFS}" ; IFS="[:]"
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eval read ${read} <<EOF
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${line}
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EOF
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IFS="${OFS}"
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if test -n "${garbage_at_eol}"
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then
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echo "Garbage at end-of-line in ${line}" 1>&2
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kill $$
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exit 1
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fi
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# .... and then going back through each field and strip out those
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# that ended up with just that space character.
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for r in ${read}
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do
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if eval test \"\${${r}}\" = \"\ \"
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then
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eval ${r}=""
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fi
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done
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case "${class}" in
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m ) staticdefault="${predefault}" ;;
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M ) staticdefault="0" ;;
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* ) test "${staticdefault}" || staticdefault=0 ;;
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esac
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case "${class}" in
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F | V | M )
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case "${invalid_p}" in
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"" )
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if test -n "${predefault}"
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then
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#invalid_p="gdbarch->${function} == ${predefault}"
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predicate="gdbarch->${function} != ${predefault}"
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elif class_is_variable_p
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then
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predicate="gdbarch->${function} != 0"
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elif class_is_function_p
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then
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predicate="gdbarch->${function} != NULL"
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fi
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;;
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* )
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echo "Predicate function ${function} with invalid_p." 1>&2
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kill $$
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exit 1
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;;
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esac
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esac
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# PREDEFAULT is a valid fallback definition of MEMBER when
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# multi-arch is not enabled. This ensures that the
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# default value, when multi-arch is the same as the
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# default value when not multi-arch. POSTDEFAULT is
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# always a valid definition of MEMBER as this again
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# ensures consistency.
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if [ -n "${postdefault}" ]
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then
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fallbackdefault="${postdefault}"
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elif [ -n "${predefault}" ]
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then
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fallbackdefault="${predefault}"
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else
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fallbackdefault="0"
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fi
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#NOT YET: See gdbarch.log for basic verification of
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# database
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break
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fi
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done
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if [ -n "${class}" ]
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then
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true
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else
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false
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fi
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}
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fallback_default_p ()
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{
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[ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
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|| [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
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}
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class_is_variable_p ()
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{
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case "${class}" in
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*v* | *V* ) true ;;
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* ) false ;;
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esac
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}
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class_is_function_p ()
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{
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case "${class}" in
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*f* | *F* | *m* | *M* ) true ;;
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* ) false ;;
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esac
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}
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class_is_multiarch_p ()
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{
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case "${class}" in
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*m* | *M* ) true ;;
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* ) false ;;
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esac
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}
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class_is_predicate_p ()
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{
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case "${class}" in
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*F* | *V* | *M* ) true ;;
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* ) false ;;
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esac
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}
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class_is_info_p ()
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{
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case "${class}" in
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*i* ) true ;;
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* ) false ;;
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esac
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}
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# dump out/verify the doco
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for field in ${read}
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do
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case ${field} in
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class ) : ;;
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# # -> line disable
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# f -> function
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# hiding a function
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# F -> function + predicate
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# hiding a function + predicate to test function validity
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# v -> variable
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# hiding a variable
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# V -> variable + predicate
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# hiding a variable + predicate to test variables validity
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# i -> set from info
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# hiding something from the ``struct info'' object
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# m -> multi-arch function
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# hiding a multi-arch function (parameterised with the architecture)
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# M -> multi-arch function + predicate
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# hiding a multi-arch function + predicate to test function validity
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returntype ) : ;;
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# For functions, the return type; for variables, the data type
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function ) : ;;
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# For functions, the member function name; for variables, the
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# variable name. Member function names are always prefixed with
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# ``gdbarch_'' for name-space purity.
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formal ) : ;;
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# The formal argument list. It is assumed that the formal
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# argument list includes the actual name of each list element.
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# A function with no arguments shall have ``void'' as the
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# formal argument list.
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actual ) : ;;
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# The list of actual arguments. The arguments specified shall
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# match the FORMAL list given above. Functions with out
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# arguments leave this blank.
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staticdefault ) : ;;
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# To help with the GDB startup a static gdbarch object is
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# created. STATICDEFAULT is the value to insert into that
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# static gdbarch object. Since this a static object only
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# simple expressions can be used.
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# If STATICDEFAULT is empty, zero is used.
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predefault ) : ;;
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# An initial value to assign to MEMBER of the freshly
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# malloc()ed gdbarch object. After initialization, the
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# freshly malloc()ed object is passed to the target
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# architecture code for further updates.
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# If PREDEFAULT is empty, zero is used.
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# A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
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# INVALID_P are specified, PREDEFAULT will be used as the
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# default for the non- multi-arch target.
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# A zero PREDEFAULT function will force the fallback to call
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# internal_error().
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# Variable declarations can refer to ``gdbarch'' which will
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# contain the current architecture. Care should be taken.
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postdefault ) : ;;
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# A value to assign to MEMBER of the new gdbarch object should
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# the target architecture code fail to change the PREDEFAULT
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# value.
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# If POSTDEFAULT is empty, no post update is performed.
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# If both INVALID_P and POSTDEFAULT are non-empty then
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# INVALID_P will be used to determine if MEMBER should be
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# changed to POSTDEFAULT.
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# If a non-empty POSTDEFAULT and a zero INVALID_P are
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# specified, POSTDEFAULT will be used as the default for the
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# non- multi-arch target (regardless of the value of
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# PREDEFAULT).
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# You cannot specify both a zero INVALID_P and a POSTDEFAULT.
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# Variable declarations can refer to ``gdbarch'' which
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# will contain the current architecture. Care should be
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# taken.
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invalid_p ) : ;;
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# A predicate equation that validates MEMBER. Non-zero is
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# returned if the code creating the new architecture failed to
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# initialize MEMBER or the initialized the member is invalid.
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# If POSTDEFAULT is non-empty then MEMBER will be updated to
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# that value. If POSTDEFAULT is empty then internal_error()
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# is called.
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# If INVALID_P is empty, a check that MEMBER is no longer
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# equal to PREDEFAULT is used.
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# The expression ``0'' disables the INVALID_P check making
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# PREDEFAULT a legitimate value.
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# See also PREDEFAULT and POSTDEFAULT.
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print ) : ;;
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# An optional expression that convers MEMBER to a value
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# suitable for formatting using %s.
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# If PRINT is empty, core_addr_to_string_nz (for CORE_ADDR)
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# or plongest (anything else) is used.
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garbage_at_eol ) : ;;
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# Catches stray fields.
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*)
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echo "Bad field ${field}"
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exit 1;;
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esac
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done
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function_list ()
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{
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# See below (DOCO) for description of each field
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cat <<EOF
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i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name
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#
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i:enum bfd_endian:byte_order:::BFD_ENDIAN_BIG
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i:enum bfd_endian:byte_order_for_code:::BFD_ENDIAN_BIG
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#
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i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
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#
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i:const struct target_desc *:target_desc:::::::host_address_to_string (gdbarch->target_desc)
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# The bit byte-order has to do just with numbering of bits in debugging symbols
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# and such. Conceptually, it's quite separate from byte/word byte order.
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v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
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# Number of bits in a char or unsigned char for the target machine.
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# Just like CHAR_BIT in <limits.h> but describes the target machine.
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# v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
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#
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# Number of bits in a short or unsigned short for the target machine.
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v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
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# Number of bits in an int or unsigned int for the target machine.
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v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
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# Number of bits in a long or unsigned long for the target machine.
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v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
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# Number of bits in a long long or unsigned long long for the target
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# machine.
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v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
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# Alignment of a long long or unsigned long long for the target
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# machine.
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v:int:long_long_align_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
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# The ABI default bit-size and format for "half", "float", "double", and
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# "long double". These bit/format pairs should eventually be combined
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# into a single object. For the moment, just initialize them as a pair.
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# Each format describes both the big and little endian layouts (if
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# useful).
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v:int:half_bit:::16:2*TARGET_CHAR_BIT::0
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v:const struct floatformat **:half_format:::::floatformats_ieee_half::pformat (gdbarch->half_format)
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v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
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v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
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v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
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v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
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v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
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v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
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# For most targets, a pointer on the target and its representation as an
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# address in GDB have the same size and "look the same". For such a
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# target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
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# / addr_bit will be set from it.
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#
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# If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
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# also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
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# gdbarch_address_to_pointer as well.
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#
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# ptr_bit is the size of a pointer on the target
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v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
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# addr_bit is the size of a target address as represented in gdb
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v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
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#
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# dwarf2_addr_size is the target address size as used in the Dwarf debug
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# info. For .debug_frame FDEs, this is supposed to be the target address
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# size from the associated CU header, and which is equivalent to the
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# DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
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# Unfortunately there is no good way to determine this value. Therefore
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# dwarf2_addr_size simply defaults to the target pointer size.
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#
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# dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
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# defined using the target's pointer size so far.
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#
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# Note that dwarf2_addr_size only needs to be redefined by a target if the
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# GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
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# and if Dwarf versions < 4 need to be supported.
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v:int:dwarf2_addr_size:::sizeof (void*):0:gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT:
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#
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# One if \`char' acts like \`signed char', zero if \`unsigned char'.
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v:int:char_signed:::1:-1:1
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#
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F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
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F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
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# Function for getting target's idea of a frame pointer. FIXME: GDB's
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# whole scheme for dealing with "frames" and "frame pointers" needs a
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# serious shakedown.
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m:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
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#
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M:enum register_status:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
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# Read a register into a new struct value. If the register is wholly
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# or partly unavailable, this should call mark_value_bytes_unavailable
|
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# as appropriate. If this is defined, then pseudo_register_read will
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# never be called.
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M:struct value *:pseudo_register_read_value:struct regcache *regcache, int cookednum:regcache, cookednum
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M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
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#
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v:int:num_regs:::0:-1
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# This macro gives the number of pseudo-registers that live in the
|
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# register namespace but do not get fetched or stored on the target.
|
|
# These pseudo-registers may be aliases for other registers,
|
|
# combinations of other registers, or they may be computed by GDB.
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v:int:num_pseudo_regs:::0:0::0
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|
|
# Assemble agent expression bytecode to collect pseudo-register REG.
|
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# Return -1 if something goes wrong, 0 otherwise.
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|
M:int:ax_pseudo_register_collect:struct agent_expr *ax, int reg:ax, reg
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|
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# Assemble agent expression bytecode to push the value of pseudo-register
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# REG on the interpreter stack.
|
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# Return -1 if something goes wrong, 0 otherwise.
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M:int:ax_pseudo_register_push_stack:struct agent_expr *ax, int reg:ax, reg
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|
|
|
# Some targets/architectures can do extra processing/display of
|
|
# segmentation faults. E.g., Intel MPX boundary faults.
|
|
# Call the architecture dependent function to handle the fault.
|
|
# UIOUT is the output stream where the handler will place information.
|
|
M:void:handle_segmentation_fault:struct ui_out *uiout:uiout
|
|
|
|
# GDB's standard (or well known) register numbers. These can map onto
|
|
# a real register or a pseudo (computed) register or not be defined at
|
|
# all (-1).
|
|
# gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
|
|
v:int:sp_regnum:::-1:-1::0
|
|
v:int:pc_regnum:::-1:-1::0
|
|
v:int:ps_regnum:::-1:-1::0
|
|
v:int:fp0_regnum:::0:-1::0
|
|
# Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
|
|
m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
|
|
# Provide a default mapping from a ecoff register number to a gdb REGNUM.
|
|
m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
|
|
# Convert from an sdb register number to an internal gdb register number.
|
|
m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
|
|
# Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
|
|
# Return -1 for bad REGNUM. Note: Several targets get this wrong.
|
|
m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
|
|
m:const char *:register_name:int regnr:regnr::0
|
|
|
|
# Return the type of a register specified by the architecture. Only
|
|
# the register cache should call this function directly; others should
|
|
# use "register_type".
|
|
M:struct type *:register_type:int reg_nr:reg_nr
|
|
|
|
M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
|
|
# Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
|
|
# deprecated_fp_regnum.
|
|
v:int:deprecated_fp_regnum:::-1:-1::0
|
|
|
|
M:CORE_ADDR:push_dummy_call:struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
|
|
v:int:call_dummy_location::::AT_ENTRY_POINT::0
|
|
M:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, args, nargs, value_type, real_pc, bp_addr, regcache
|
|
|
|
m:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all::default_print_registers_info::0
|
|
m:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args::default_print_float_info::0
|
|
M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
|
|
# MAP a GDB RAW register number onto a simulator register number. See
|
|
# also include/...-sim.h.
|
|
m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
|
|
m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
|
|
m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
|
|
|
|
# Determine the address where a longjmp will land and save this address
|
|
# in PC. Return nonzero on success.
|
|
#
|
|
# FRAME corresponds to the longjmp frame.
|
|
F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
|
|
|
|
#
|
|
v:int:believe_pcc_promotion:::::::
|
|
#
|
|
m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
|
|
f:int:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep:frame, regnum, type, buf, optimizedp, unavailablep:0
|
|
f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
|
|
# Construct a value representing the contents of register REGNUM in
|
|
# frame FRAME_ID, interpreted as type TYPE. The routine needs to
|
|
# allocate and return a struct value with all value attributes
|
|
# (but not the value contents) filled in.
|
|
m:struct value *:value_from_register:struct type *type, int regnum, struct frame_id frame_id:type, regnum, frame_id::default_value_from_register::0
|
|
#
|
|
m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
|
|
m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
|
|
M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
|
|
|
|
# Return the return-value convention that will be used by FUNCTION
|
|
# to return a value of type VALTYPE. FUNCTION may be NULL in which
|
|
# case the return convention is computed based only on VALTYPE.
|
|
#
|
|
# If READBUF is not NULL, extract the return value and save it in this buffer.
|
|
#
|
|
# If WRITEBUF is not NULL, it contains a return value which will be
|
|
# stored into the appropriate register. This can be used when we want
|
|
# to force the value returned by a function (see the "return" command
|
|
# for instance).
|
|
M:enum return_value_convention:return_value:struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:function, valtype, regcache, readbuf, writebuf
|
|
|
|
# Return true if the return value of function is stored in the first hidden
|
|
# parameter. In theory, this feature should be language-dependent, specified
|
|
# by language and its ABI, such as C++. Unfortunately, compiler may
|
|
# implement it to a target-dependent feature. So that we need such hook here
|
|
# to be aware of this in GDB.
|
|
m:int:return_in_first_hidden_param_p:struct type *type:type::default_return_in_first_hidden_param_p::0
|
|
|
|
m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
|
|
M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
|
|
# On some platforms, a single function may provide multiple entry points,
|
|
# e.g. one that is used for function-pointer calls and a different one
|
|
# that is used for direct function calls.
|
|
# In order to ensure that breakpoints set on the function will trigger
|
|
# no matter via which entry point the function is entered, a platform
|
|
# may provide the skip_entrypoint callback. It is called with IP set
|
|
# to the main entry point of a function (as determined by the symbol table),
|
|
# and should return the address of the innermost entry point, where the
|
|
# actual breakpoint needs to be set. Note that skip_entrypoint is used
|
|
# by GDB common code even when debugging optimized code, where skip_prologue
|
|
# is not used.
|
|
M:CORE_ADDR:skip_entrypoint:CORE_ADDR ip:ip
|
|
|
|
f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
|
|
m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
|
|
# Return the adjusted address and kind to use for Z0/Z1 packets.
|
|
# KIND is usually the memory length of the breakpoint, but may have a
|
|
# different target-specific meaning.
|
|
m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
|
|
M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
|
|
m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
|
|
m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
|
|
v:CORE_ADDR:decr_pc_after_break:::0:::0
|
|
|
|
# A function can be addressed by either it's "pointer" (possibly a
|
|
# descriptor address) or "entry point" (first executable instruction).
|
|
# The method "convert_from_func_ptr_addr" converting the former to the
|
|
# latter. gdbarch_deprecated_function_start_offset is being used to implement
|
|
# a simplified subset of that functionality - the function's address
|
|
# corresponds to the "function pointer" and the function's start
|
|
# corresponds to the "function entry point" - and hence is redundant.
|
|
|
|
v:CORE_ADDR:deprecated_function_start_offset:::0:::0
|
|
|
|
# Return the remote protocol register number associated with this
|
|
# register. Normally the identity mapping.
|
|
m:int:remote_register_number:int regno:regno::default_remote_register_number::0
|
|
|
|
# Fetch the target specific address used to represent a load module.
|
|
F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
|
|
#
|
|
v:CORE_ADDR:frame_args_skip:::0:::0
|
|
M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
|
|
M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
|
|
# DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
|
|
# frame-base. Enable frame-base before frame-unwind.
|
|
F:int:frame_num_args:struct frame_info *frame:frame
|
|
#
|
|
M:CORE_ADDR:frame_align:CORE_ADDR address:address
|
|
m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
|
|
v:int:frame_red_zone_size
|
|
#
|
|
m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
|
|
# On some machines there are bits in addresses which are not really
|
|
# part of the address, but are used by the kernel, the hardware, etc.
|
|
# for special purposes. gdbarch_addr_bits_remove takes out any such bits so
|
|
# we get a "real" address such as one would find in a symbol table.
|
|
# This is used only for addresses of instructions, and even then I'm
|
|
# not sure it's used in all contexts. It exists to deal with there
|
|
# being a few stray bits in the PC which would mislead us, not as some
|
|
# sort of generic thing to handle alignment or segmentation (it's
|
|
# possible it should be in TARGET_READ_PC instead).
|
|
m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
|
|
|
|
# FIXME/cagney/2001-01-18: This should be split in two. A target method that
|
|
# indicates if the target needs software single step. An ISA method to
|
|
# implement it.
|
|
#
|
|
# FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
|
|
# target can single step. If not, then implement single step using breakpoints.
|
|
#
|
|
# A return value of 1 means that the software_single_step breakpoints
|
|
# were inserted; 0 means they were not. Multiple breakpoints may be
|
|
# inserted for some instructions such as conditional branch. However,
|
|
# each implementation must always evaluate the condition and only put
|
|
# the breakpoint at the branch destination if the condition is true, so
|
|
# that we ensure forward progress when stepping past a conditional
|
|
# branch to self.
|
|
F:int:software_single_step:struct frame_info *frame:frame
|
|
|
|
# Return non-zero if the processor is executing a delay slot and a
|
|
# further single-step is needed before the instruction finishes.
|
|
M:int:single_step_through_delay:struct frame_info *frame:frame
|
|
# FIXME: cagney/2003-08-28: Need to find a better way of selecting the
|
|
# disassembler. Perhaps objdump can handle it?
|
|
f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
|
|
f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
|
|
|
|
|
|
# If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
|
|
# evaluates non-zero, this is the address where the debugger will place
|
|
# a step-resume breakpoint to get us past the dynamic linker.
|
|
m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
|
|
# Some systems also have trampoline code for returning from shared libs.
|
|
m:int:in_solib_return_trampoline:CORE_ADDR pc, const char *name:pc, name::generic_in_solib_return_trampoline::0
|
|
|
|
# A target might have problems with watchpoints as soon as the stack
|
|
# frame of the current function has been destroyed. This mostly happens
|
|
# as the first action in a function's epilogue. stack_frame_destroyed_p()
|
|
# is defined to return a non-zero value if either the given addr is one
|
|
# instruction after the stack destroying instruction up to the trailing
|
|
# return instruction or if we can figure out that the stack frame has
|
|
# already been invalidated regardless of the value of addr. Targets
|
|
# which don't suffer from that problem could just let this functionality
|
|
# untouched.
|
|
m:int:stack_frame_destroyed_p:CORE_ADDR addr:addr:0:generic_stack_frame_destroyed_p::0
|
|
# Process an ELF symbol in the minimal symbol table in a backend-specific
|
|
# way. Normally this hook is supposed to do nothing, however if required,
|
|
# then this hook can be used to apply tranformations to symbols that are
|
|
# considered special in some way. For example the MIPS backend uses it
|
|
# to interpret \`st_other' information to mark compressed code symbols so
|
|
# that they can be treated in the appropriate manner in the processing of
|
|
# the main symbol table and DWARF-2 records.
|
|
F:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym
|
|
f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
|
|
# Process a symbol in the main symbol table in a backend-specific way.
|
|
# Normally this hook is supposed to do nothing, however if required,
|
|
# then this hook can be used to apply tranformations to symbols that
|
|
# are considered special in some way. This is currently used by the
|
|
# MIPS backend to make sure compressed code symbols have the ISA bit
|
|
# set. This in turn is needed for symbol values seen in GDB to match
|
|
# the values used at the runtime by the program itself, for function
|
|
# and label references.
|
|
f:void:make_symbol_special:struct symbol *sym, struct objfile *objfile:sym, objfile::default_make_symbol_special::0
|
|
# Adjust the address retrieved from a DWARF-2 record other than a line
|
|
# entry in a backend-specific way. Normally this hook is supposed to
|
|
# return the address passed unchanged, however if that is incorrect for
|
|
# any reason, then this hook can be used to fix the address up in the
|
|
# required manner. This is currently used by the MIPS backend to make
|
|
# sure addresses in FDE, range records, etc. referring to compressed
|
|
# code have the ISA bit set, matching line information and the symbol
|
|
# table.
|
|
f:CORE_ADDR:adjust_dwarf2_addr:CORE_ADDR pc:pc::default_adjust_dwarf2_addr::0
|
|
# Adjust the address updated by a line entry in a backend-specific way.
|
|
# Normally this hook is supposed to return the address passed unchanged,
|
|
# however in the case of inconsistencies in these records, this hook can
|
|
# be used to fix them up in the required manner. This is currently used
|
|
# by the MIPS backend to make sure all line addresses in compressed code
|
|
# are presented with the ISA bit set, which is not always the case. This
|
|
# in turn ensures breakpoint addresses are correctly matched against the
|
|
# stop PC.
|
|
f:CORE_ADDR:adjust_dwarf2_line:CORE_ADDR addr, int rel:addr, rel::default_adjust_dwarf2_line::0
|
|
v:int:cannot_step_breakpoint:::0:0::0
|
|
v:int:have_nonsteppable_watchpoint:::0:0::0
|
|
F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
|
|
M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
|
|
|
|
# Return the appropriate type_flags for the supplied address class.
|
|
# This function should return 1 if the address class was recognized and
|
|
# type_flags was set, zero otherwise.
|
|
M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
|
|
# Is a register in a group
|
|
m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
|
|
# Fetch the pointer to the ith function argument.
|
|
F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
|
|
|
|
# Iterate over all supported register notes in a core file. For each
|
|
# supported register note section, the iterator must call CB and pass
|
|
# CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
|
|
# the supported register note sections based on the current register
|
|
# values. Otherwise it should enumerate all supported register note
|
|
# sections.
|
|
M:void:iterate_over_regset_sections:iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache:cb, cb_data, regcache
|
|
|
|
# Create core file notes
|
|
M:char *:make_corefile_notes:bfd *obfd, int *note_size:obfd, note_size
|
|
|
|
# The elfcore writer hook to use to write Linux prpsinfo notes to core
|
|
# files. Most Linux architectures use the same prpsinfo32 or
|
|
# prpsinfo64 layouts, and so won't need to provide this hook, as we
|
|
# call the Linux generic routines in bfd to write prpsinfo notes by
|
|
# default.
|
|
F:char *:elfcore_write_linux_prpsinfo:bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info:obfd, note_data, note_size, info
|
|
|
|
# Find core file memory regions
|
|
M:int:find_memory_regions:find_memory_region_ftype func, void *data:func, data
|
|
|
|
# Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
|
|
# core file into buffer READBUF with length LEN. Return the number of bytes read
|
|
# (zero indicates failure).
|
|
# failed, otherwise, return the red length of READBUF.
|
|
M:ULONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
|
|
|
|
# Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
|
|
# libraries list from core file into buffer READBUF with length LEN.
|
|
# Return the number of bytes read (zero indicates failure).
|
|
M:ULONGEST:core_xfer_shared_libraries_aix:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
|
|
|
|
# How the core target converts a PTID from a core file to a string.
|
|
M:char *:core_pid_to_str:ptid_t ptid:ptid
|
|
|
|
# How the core target extracts the name of a thread from a core file.
|
|
M:const char *:core_thread_name:struct thread_info *thr:thr
|
|
|
|
# BFD target to use when generating a core file.
|
|
V:const char *:gcore_bfd_target:::0:0:::pstring (gdbarch->gcore_bfd_target)
|
|
|
|
# If the elements of C++ vtables are in-place function descriptors rather
|
|
# than normal function pointers (which may point to code or a descriptor),
|
|
# set this to one.
|
|
v:int:vtable_function_descriptors:::0:0::0
|
|
|
|
# Set if the least significant bit of the delta is used instead of the least
|
|
# significant bit of the pfn for pointers to virtual member functions.
|
|
v:int:vbit_in_delta:::0:0::0
|
|
|
|
# Advance PC to next instruction in order to skip a permanent breakpoint.
|
|
f:void:skip_permanent_breakpoint:struct regcache *regcache:regcache:default_skip_permanent_breakpoint:default_skip_permanent_breakpoint::0
|
|
|
|
# The maximum length of an instruction on this architecture in bytes.
|
|
V:ULONGEST:max_insn_length:::0:0
|
|
|
|
# Copy the instruction at FROM to TO, and make any adjustments
|
|
# necessary to single-step it at that address.
|
|
#
|
|
# REGS holds the state the thread's registers will have before
|
|
# executing the copied instruction; the PC in REGS will refer to FROM,
|
|
# not the copy at TO. The caller should update it to point at TO later.
|
|
#
|
|
# Return a pointer to data of the architecture's choice to be passed
|
|
# to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
|
|
# the instruction's effects have been completely simulated, with the
|
|
# resulting state written back to REGS.
|
|
#
|
|
# For a general explanation of displaced stepping and how GDB uses it,
|
|
# see the comments in infrun.c.
|
|
#
|
|
# The TO area is only guaranteed to have space for
|
|
# gdbarch_max_insn_length (arch) bytes, so this function must not
|
|
# write more bytes than that to that area.
|
|
#
|
|
# If you do not provide this function, GDB assumes that the
|
|
# architecture does not support displaced stepping.
|
|
#
|
|
# If your architecture doesn't need to adjust instructions before
|
|
# single-stepping them, consider using simple_displaced_step_copy_insn
|
|
# here.
|
|
#
|
|
# If the instruction cannot execute out of line, return NULL. The
|
|
# core falls back to stepping past the instruction in-line instead in
|
|
# that case.
|
|
M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
|
|
|
|
# Return true if GDB should use hardware single-stepping to execute
|
|
# the displaced instruction identified by CLOSURE. If false,
|
|
# GDB will simply restart execution at the displaced instruction
|
|
# location, and it is up to the target to ensure GDB will receive
|
|
# control again (e.g. by placing a software breakpoint instruction
|
|
# into the displaced instruction buffer).
|
|
#
|
|
# The default implementation returns false on all targets that
|
|
# provide a gdbarch_software_single_step routine, and true otherwise.
|
|
m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
|
|
|
|
# Fix up the state resulting from successfully single-stepping a
|
|
# displaced instruction, to give the result we would have gotten from
|
|
# stepping the instruction in its original location.
|
|
#
|
|
# REGS is the register state resulting from single-stepping the
|
|
# displaced instruction.
|
|
#
|
|
# CLOSURE is the result from the matching call to
|
|
# gdbarch_displaced_step_copy_insn.
|
|
#
|
|
# If you provide gdbarch_displaced_step_copy_insn.but not this
|
|
# function, then GDB assumes that no fixup is needed after
|
|
# single-stepping the instruction.
|
|
#
|
|
# For a general explanation of displaced stepping and how GDB uses it,
|
|
# see the comments in infrun.c.
|
|
M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
|
|
|
|
# Free a closure returned by gdbarch_displaced_step_copy_insn.
|
|
#
|
|
# If you provide gdbarch_displaced_step_copy_insn, you must provide
|
|
# this function as well.
|
|
#
|
|
# If your architecture uses closures that don't need to be freed, then
|
|
# you can use simple_displaced_step_free_closure here.
|
|
#
|
|
# For a general explanation of displaced stepping and how GDB uses it,
|
|
# see the comments in infrun.c.
|
|
m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
|
|
|
|
# Return the address of an appropriate place to put displaced
|
|
# instructions while we step over them. There need only be one such
|
|
# place, since we're only stepping one thread over a breakpoint at a
|
|
# time.
|
|
#
|
|
# For a general explanation of displaced stepping and how GDB uses it,
|
|
# see the comments in infrun.c.
|
|
m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
|
|
|
|
# Relocate an instruction to execute at a different address. OLDLOC
|
|
# is the address in the inferior memory where the instruction to
|
|
# relocate is currently at. On input, TO points to the destination
|
|
# where we want the instruction to be copied (and possibly adjusted)
|
|
# to. On output, it points to one past the end of the resulting
|
|
# instruction(s). The effect of executing the instruction at TO shall
|
|
# be the same as if executing it at FROM. For example, call
|
|
# instructions that implicitly push the return address on the stack
|
|
# should be adjusted to return to the instruction after OLDLOC;
|
|
# relative branches, and other PC-relative instructions need the
|
|
# offset adjusted; etc.
|
|
M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
|
|
|
|
# Refresh overlay mapped state for section OSECT.
|
|
F:void:overlay_update:struct obj_section *osect:osect
|
|
|
|
M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
|
|
|
|
# Handle special encoding of static variables in stabs debug info.
|
|
F:const char *:static_transform_name:const char *name:name
|
|
# Set if the address in N_SO or N_FUN stabs may be zero.
|
|
v:int:sofun_address_maybe_missing:::0:0::0
|
|
|
|
# Parse the instruction at ADDR storing in the record execution log
|
|
# the registers REGCACHE and memory ranges that will be affected when
|
|
# the instruction executes, along with their current values.
|
|
# Return -1 if something goes wrong, 0 otherwise.
|
|
M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
|
|
|
|
# Save process state after a signal.
|
|
# Return -1 if something goes wrong, 0 otherwise.
|
|
M:int:process_record_signal:struct regcache *regcache, enum gdb_signal signal:regcache, signal
|
|
|
|
# Signal translation: translate inferior's signal (target's) number
|
|
# into GDB's representation. The implementation of this method must
|
|
# be host independent. IOW, don't rely on symbols of the NAT_FILE
|
|
# header (the nm-*.h files), the host <signal.h> header, or similar
|
|
# headers. This is mainly used when cross-debugging core files ---
|
|
# "Live" targets hide the translation behind the target interface
|
|
# (target_wait, target_resume, etc.).
|
|
M:enum gdb_signal:gdb_signal_from_target:int signo:signo
|
|
|
|
# Signal translation: translate the GDB's internal signal number into
|
|
# the inferior's signal (target's) representation. The implementation
|
|
# of this method must be host independent. IOW, don't rely on symbols
|
|
# of the NAT_FILE header (the nm-*.h files), the host <signal.h>
|
|
# header, or similar headers.
|
|
# Return the target signal number if found, or -1 if the GDB internal
|
|
# signal number is invalid.
|
|
M:int:gdb_signal_to_target:enum gdb_signal signal:signal
|
|
|
|
# Extra signal info inspection.
|
|
#
|
|
# Return a type suitable to inspect extra signal information.
|
|
M:struct type *:get_siginfo_type:void:
|
|
|
|
# Record architecture-specific information from the symbol table.
|
|
M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
|
|
|
|
# Function for the 'catch syscall' feature.
|
|
|
|
# Get architecture-specific system calls information from registers.
|
|
M:LONGEST:get_syscall_number:ptid_t ptid:ptid
|
|
|
|
# The filename of the XML syscall for this architecture.
|
|
v:const char *:xml_syscall_file:::0:0::0:pstring (gdbarch->xml_syscall_file)
|
|
|
|
# Information about system calls from this architecture
|
|
v:struct syscalls_info *:syscalls_info:::0:0::0:host_address_to_string (gdbarch->syscalls_info)
|
|
|
|
# SystemTap related fields and functions.
|
|
|
|
# A NULL-terminated array of prefixes used to mark an integer constant
|
|
# on the architecture's assembly.
|
|
# For example, on x86 integer constants are written as:
|
|
#
|
|
# \$10 ;; integer constant 10
|
|
#
|
|
# in this case, this prefix would be the character \`\$\'.
|
|
v:const char *const *:stap_integer_prefixes:::0:0::0:pstring_list (gdbarch->stap_integer_prefixes)
|
|
|
|
# A NULL-terminated array of suffixes used to mark an integer constant
|
|
# on the architecture's assembly.
|
|
v:const char *const *:stap_integer_suffixes:::0:0::0:pstring_list (gdbarch->stap_integer_suffixes)
|
|
|
|
# A NULL-terminated array of prefixes used to mark a register name on
|
|
# the architecture's assembly.
|
|
# For example, on x86 the register name is written as:
|
|
#
|
|
# \%eax ;; register eax
|
|
#
|
|
# in this case, this prefix would be the character \`\%\'.
|
|
v:const char *const *:stap_register_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_prefixes)
|
|
|
|
# A NULL-terminated array of suffixes used to mark a register name on
|
|
# the architecture's assembly.
|
|
v:const char *const *:stap_register_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_suffixes)
|
|
|
|
# A NULL-terminated array of prefixes used to mark a register
|
|
# indirection on the architecture's assembly.
|
|
# For example, on x86 the register indirection is written as:
|
|
#
|
|
# \(\%eax\) ;; indirecting eax
|
|
#
|
|
# in this case, this prefix would be the charater \`\(\'.
|
|
#
|
|
# Please note that we use the indirection prefix also for register
|
|
# displacement, e.g., \`4\(\%eax\)\' on x86.
|
|
v:const char *const *:stap_register_indirection_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_prefixes)
|
|
|
|
# A NULL-terminated array of suffixes used to mark a register
|
|
# indirection on the architecture's assembly.
|
|
# For example, on x86 the register indirection is written as:
|
|
#
|
|
# \(\%eax\) ;; indirecting eax
|
|
#
|
|
# in this case, this prefix would be the charater \`\)\'.
|
|
#
|
|
# Please note that we use the indirection suffix also for register
|
|
# displacement, e.g., \`4\(\%eax\)\' on x86.
|
|
v:const char *const *:stap_register_indirection_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_suffixes)
|
|
|
|
# Prefix(es) used to name a register using GDB's nomenclature.
|
|
#
|
|
# For example, on PPC a register is represented by a number in the assembly
|
|
# language (e.g., \`10\' is the 10th general-purpose register). However,
|
|
# inside GDB this same register has an \`r\' appended to its name, so the 10th
|
|
# register would be represented as \`r10\' internally.
|
|
v:const char *:stap_gdb_register_prefix:::0:0::0:pstring (gdbarch->stap_gdb_register_prefix)
|
|
|
|
# Suffix used to name a register using GDB's nomenclature.
|
|
v:const char *:stap_gdb_register_suffix:::0:0::0:pstring (gdbarch->stap_gdb_register_suffix)
|
|
|
|
# Check if S is a single operand.
|
|
#
|
|
# Single operands can be:
|
|
# \- Literal integers, e.g. \`\$10\' on x86
|
|
# \- Register access, e.g. \`\%eax\' on x86
|
|
# \- Register indirection, e.g. \`\(\%eax\)\' on x86
|
|
# \- Register displacement, e.g. \`4\(\%eax\)\' on x86
|
|
#
|
|
# This function should check for these patterns on the string
|
|
# and return 1 if some were found, or zero otherwise. Please try to match
|
|
# as much info as you can from the string, i.e., if you have to match
|
|
# something like \`\(\%\', do not match just the \`\(\'.
|
|
M:int:stap_is_single_operand:const char *s:s
|
|
|
|
# Function used to handle a "special case" in the parser.
|
|
#
|
|
# A "special case" is considered to be an unknown token, i.e., a token
|
|
# that the parser does not know how to parse. A good example of special
|
|
# case would be ARM's register displacement syntax:
|
|
#
|
|
# [R0, #4] ;; displacing R0 by 4
|
|
#
|
|
# Since the parser assumes that a register displacement is of the form:
|
|
#
|
|
# <number> <indirection_prefix> <register_name> <indirection_suffix>
|
|
#
|
|
# it means that it will not be able to recognize and parse this odd syntax.
|
|
# Therefore, we should add a special case function that will handle this token.
|
|
#
|
|
# This function should generate the proper expression form of the expression
|
|
# using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
|
|
# and so on). It should also return 1 if the parsing was successful, or zero
|
|
# if the token was not recognized as a special token (in this case, returning
|
|
# zero means that the special parser is deferring the parsing to the generic
|
|
# parser), and should advance the buffer pointer (p->arg).
|
|
M:int:stap_parse_special_token:struct stap_parse_info *p:p
|
|
|
|
# DTrace related functions.
|
|
|
|
# The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
|
|
# NARG must be >= 0.
|
|
M:void:dtrace_parse_probe_argument:struct parser_state *pstate, int narg:pstate, narg
|
|
|
|
# True if the given ADDR does not contain the instruction sequence
|
|
# corresponding to a disabled DTrace is-enabled probe.
|
|
M:int:dtrace_probe_is_enabled:CORE_ADDR addr:addr
|
|
|
|
# Enable a DTrace is-enabled probe at ADDR.
|
|
M:void:dtrace_enable_probe:CORE_ADDR addr:addr
|
|
|
|
# Disable a DTrace is-enabled probe at ADDR.
|
|
M:void:dtrace_disable_probe:CORE_ADDR addr:addr
|
|
|
|
# True if the list of shared libraries is one and only for all
|
|
# processes, as opposed to a list of shared libraries per inferior.
|
|
# This usually means that all processes, although may or may not share
|
|
# an address space, will see the same set of symbols at the same
|
|
# addresses.
|
|
v:int:has_global_solist:::0:0::0
|
|
|
|
# On some targets, even though each inferior has its own private
|
|
# address space, the debug interface takes care of making breakpoints
|
|
# visible to all address spaces automatically. For such cases,
|
|
# this property should be set to true.
|
|
v:int:has_global_breakpoints:::0:0::0
|
|
|
|
# True if inferiors share an address space (e.g., uClinux).
|
|
m:int:has_shared_address_space:void:::default_has_shared_address_space::0
|
|
|
|
# True if a fast tracepoint can be set at an address.
|
|
m:int:fast_tracepoint_valid_at:CORE_ADDR addr, char **msg:addr, msg::default_fast_tracepoint_valid_at::0
|
|
|
|
# Guess register state based on tracepoint location. Used for tracepoints
|
|
# where no registers have been collected, but there's only one location,
|
|
# allowing us to guess the PC value, and perhaps some other registers.
|
|
# On entry, regcache has all registers marked as unavailable.
|
|
m:void:guess_tracepoint_registers:struct regcache *regcache, CORE_ADDR addr:regcache, addr::default_guess_tracepoint_registers::0
|
|
|
|
# Return the "auto" target charset.
|
|
f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
|
|
# Return the "auto" target wide charset.
|
|
f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
|
|
|
|
# If non-empty, this is a file extension that will be opened in place
|
|
# of the file extension reported by the shared library list.
|
|
#
|
|
# This is most useful for toolchains that use a post-linker tool,
|
|
# where the names of the files run on the target differ in extension
|
|
# compared to the names of the files GDB should load for debug info.
|
|
v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
|
|
|
|
# If true, the target OS has DOS-based file system semantics. That
|
|
# is, absolute paths include a drive name, and the backslash is
|
|
# considered a directory separator.
|
|
v:int:has_dos_based_file_system:::0:0::0
|
|
|
|
# Generate bytecodes to collect the return address in a frame.
|
|
# Since the bytecodes run on the target, possibly with GDB not even
|
|
# connected, the full unwinding machinery is not available, and
|
|
# typically this function will issue bytecodes for one or more likely
|
|
# places that the return address may be found.
|
|
m:void:gen_return_address:struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope:ax, value, scope::default_gen_return_address::0
|
|
|
|
# Implement the "info proc" command.
|
|
M:void:info_proc:const char *args, enum info_proc_what what:args, what
|
|
|
|
# Implement the "info proc" command for core files. Noe that there
|
|
# are two "info_proc"-like methods on gdbarch -- one for core files,
|
|
# one for live targets.
|
|
M:void:core_info_proc:const char *args, enum info_proc_what what:args, what
|
|
|
|
# Iterate over all objfiles in the order that makes the most sense
|
|
# for the architecture to make global symbol searches.
|
|
#
|
|
# CB is a callback function where OBJFILE is the objfile to be searched,
|
|
# and CB_DATA a pointer to user-defined data (the same data that is passed
|
|
# when calling this gdbarch method). The iteration stops if this function
|
|
# returns nonzero.
|
|
#
|
|
# CB_DATA is a pointer to some user-defined data to be passed to
|
|
# the callback.
|
|
#
|
|
# If not NULL, CURRENT_OBJFILE corresponds to the objfile being
|
|
# inspected when the symbol search was requested.
|
|
m:void:iterate_over_objfiles_in_search_order:iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile:cb, cb_data, current_objfile:0:default_iterate_over_objfiles_in_search_order::0
|
|
|
|
# Ravenscar arch-dependent ops.
|
|
v:struct ravenscar_arch_ops *:ravenscar_ops:::NULL:NULL::0:host_address_to_string (gdbarch->ravenscar_ops)
|
|
|
|
# Return non-zero if the instruction at ADDR is a call; zero otherwise.
|
|
m:int:insn_is_call:CORE_ADDR addr:addr::default_insn_is_call::0
|
|
|
|
# Return non-zero if the instruction at ADDR is a return; zero otherwise.
|
|
m:int:insn_is_ret:CORE_ADDR addr:addr::default_insn_is_ret::0
|
|
|
|
# Return non-zero if the instruction at ADDR is a jump; zero otherwise.
|
|
m:int:insn_is_jump:CORE_ADDR addr:addr::default_insn_is_jump::0
|
|
|
|
# Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
|
|
# Return 0 if *READPTR is already at the end of the buffer.
|
|
# Return -1 if there is insufficient buffer for a whole entry.
|
|
# Return 1 if an entry was read into *TYPEP and *VALP.
|
|
M:int:auxv_parse:gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp:readptr, endptr, typep, valp
|
|
|
|
# Find the address range of the current inferior's vsyscall/vDSO, and
|
|
# write it to *RANGE. If the vsyscall's length can't be determined, a
|
|
# range with zero length is returned. Returns true if the vsyscall is
|
|
# found, false otherwise.
|
|
m:int:vsyscall_range:struct mem_range *range:range::default_vsyscall_range::0
|
|
|
|
# Allocate SIZE bytes of PROT protected page aligned memory in inferior.
|
|
# PROT has GDB_MMAP_PROT_* bitmask format.
|
|
# Throw an error if it is not possible. Returned address is always valid.
|
|
f:CORE_ADDR:infcall_mmap:CORE_ADDR size, unsigned prot:size, prot::default_infcall_mmap::0
|
|
|
|
# Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
|
|
# Print a warning if it is not possible.
|
|
f:void:infcall_munmap:CORE_ADDR addr, CORE_ADDR size:addr, size::default_infcall_munmap::0
|
|
|
|
# Return string (caller has to use xfree for it) with options for GCC
|
|
# to produce code for this target, typically "-m64", "-m32" or "-m31".
|
|
# These options are put before CU's DW_AT_producer compilation options so that
|
|
# they can override it. Method may also return NULL.
|
|
m:char *:gcc_target_options:void:::default_gcc_target_options::0
|
|
|
|
# Return a regular expression that matches names used by this
|
|
# architecture in GNU configury triplets. The result is statically
|
|
# allocated and must not be freed. The default implementation simply
|
|
# returns the BFD architecture name, which is correct in nearly every
|
|
# case.
|
|
m:const char *:gnu_triplet_regexp:void:::default_gnu_triplet_regexp::0
|
|
|
|
# Return the size in 8-bit bytes of an addressable memory unit on this
|
|
# architecture. This corresponds to the number of 8-bit bytes associated to
|
|
# each address in memory.
|
|
m:int:addressable_memory_unit_size:void:::default_addressable_memory_unit_size::0
|
|
|
|
EOF
|
|
}
|
|
|
|
#
|
|
# The .log file
|
|
#
|
|
exec > new-gdbarch.log
|
|
function_list | while do_read
|
|
do
|
|
cat <<EOF
|
|
${class} ${returntype} ${function} ($formal)
|
|
EOF
|
|
for r in ${read}
|
|
do
|
|
eval echo \"\ \ \ \ ${r}=\${${r}}\"
|
|
done
|
|
if class_is_predicate_p && fallback_default_p
|
|
then
|
|
echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
|
|
kill $$
|
|
exit 1
|
|
fi
|
|
if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
|
|
then
|
|
echo "Error: postdefault is useless when invalid_p=0" 1>&2
|
|
kill $$
|
|
exit 1
|
|
fi
|
|
if class_is_multiarch_p
|
|
then
|
|
if class_is_predicate_p ; then :
|
|
elif test "x${predefault}" = "x"
|
|
then
|
|
echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
|
|
kill $$
|
|
exit 1
|
|
fi
|
|
fi
|
|
echo ""
|
|
done
|
|
|
|
exec 1>&2
|
|
compare_new gdbarch.log
|
|
|
|
|
|
copyright ()
|
|
{
|
|
cat <<EOF
|
|
/* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
|
|
/* vi:set ro: */
|
|
|
|
/* Dynamic architecture support for GDB, the GNU debugger.
|
|
|
|
Copyright (C) 1998-2016 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
/* This file was created with the aid of \`\`gdbarch.sh''.
|
|
|
|
The Bourne shell script \`\`gdbarch.sh'' creates the files
|
|
\`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
|
|
against the existing \`\`gdbarch.[hc]''. Any differences found
|
|
being reported.
|
|
|
|
If editing this file, please also run gdbarch.sh and merge any
|
|
changes into that script. Conversely, when making sweeping changes
|
|
to this file, modifying gdbarch.sh and using its output may prove
|
|
easier. */
|
|
|
|
EOF
|
|
}
|
|
|
|
#
|
|
# The .h file
|
|
#
|
|
|
|
exec > new-gdbarch.h
|
|
copyright
|
|
cat <<EOF
|
|
#ifndef GDBARCH_H
|
|
#define GDBARCH_H
|
|
|
|
#include "frame.h"
|
|
|
|
struct floatformat;
|
|
struct ui_file;
|
|
struct value;
|
|
struct objfile;
|
|
struct obj_section;
|
|
struct minimal_symbol;
|
|
struct regcache;
|
|
struct reggroup;
|
|
struct regset;
|
|
struct disassemble_info;
|
|
struct target_ops;
|
|
struct obstack;
|
|
struct bp_target_info;
|
|
struct target_desc;
|
|
struct objfile;
|
|
struct symbol;
|
|
struct displaced_step_closure;
|
|
struct syscall;
|
|
struct agent_expr;
|
|
struct axs_value;
|
|
struct stap_parse_info;
|
|
struct parser_state;
|
|
struct ravenscar_arch_ops;
|
|
struct elf_internal_linux_prpsinfo;
|
|
struct mem_range;
|
|
struct syscalls_info;
|
|
struct thread_info;
|
|
struct ui_out;
|
|
|
|
#include "regcache.h"
|
|
|
|
/* The architecture associated with the inferior through the
|
|
connection to the target.
|
|
|
|
The architecture vector provides some information that is really a
|
|
property of the inferior, accessed through a particular target:
|
|
ptrace operations; the layout of certain RSP packets; the solib_ops
|
|
vector; etc. To differentiate architecture accesses to
|
|
per-inferior/target properties from
|
|
per-thread/per-frame/per-objfile properties, accesses to
|
|
per-inferior/target properties should be made through this
|
|
gdbarch. */
|
|
|
|
/* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
|
|
extern struct gdbarch *target_gdbarch (void);
|
|
|
|
/* Callback type for the 'iterate_over_objfiles_in_search_order'
|
|
gdbarch method. */
|
|
|
|
typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
|
|
(struct objfile *objfile, void *cb_data);
|
|
|
|
/* Callback type for regset section iterators. The callback usually
|
|
invokes the REGSET's supply or collect method, to which it must
|
|
pass a buffer with at least the given SIZE. SECT_NAME is a BFD
|
|
section name, and HUMAN_NAME is used for diagnostic messages.
|
|
CB_DATA should have been passed unchanged through the iterator. */
|
|
|
|
typedef void (iterate_over_regset_sections_cb)
|
|
(const char *sect_name, int size, const struct regset *regset,
|
|
const char *human_name, void *cb_data);
|
|
EOF
|
|
|
|
# function typedef's
|
|
printf "\n"
|
|
printf "\n"
|
|
printf "/* The following are pre-initialized by GDBARCH. */\n"
|
|
function_list | while do_read
|
|
do
|
|
if class_is_info_p
|
|
then
|
|
printf "\n"
|
|
printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
|
|
printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
|
|
fi
|
|
done
|
|
|
|
# function typedef's
|
|
printf "\n"
|
|
printf "\n"
|
|
printf "/* The following are initialized by the target dependent code. */\n"
|
|
function_list | while do_read
|
|
do
|
|
if [ -n "${comment}" ]
|
|
then
|
|
echo "${comment}" | sed \
|
|
-e '2 s,#,/*,' \
|
|
-e '3,$ s,#, ,' \
|
|
-e '$ s,$, */,'
|
|
fi
|
|
|
|
if class_is_predicate_p
|
|
then
|
|
printf "\n"
|
|
printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
|
|
fi
|
|
if class_is_variable_p
|
|
then
|
|
printf "\n"
|
|
printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
|
|
printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
|
|
fi
|
|
if class_is_function_p
|
|
then
|
|
printf "\n"
|
|
if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
|
|
then
|
|
printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
|
|
elif class_is_multiarch_p
|
|
then
|
|
printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
|
|
else
|
|
printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
|
|
fi
|
|
if [ "x${formal}" = "xvoid" ]
|
|
then
|
|
printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
|
|
else
|
|
printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
|
|
fi
|
|
printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
|
|
fi
|
|
done
|
|
|
|
# close it off
|
|
cat <<EOF
|
|
|
|
/* Definition for an unknown syscall, used basically in error-cases. */
|
|
#define UNKNOWN_SYSCALL (-1)
|
|
|
|
extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
|
|
|
|
|
|
/* Mechanism for co-ordinating the selection of a specific
|
|
architecture.
|
|
|
|
GDB targets (*-tdep.c) can register an interest in a specific
|
|
architecture. Other GDB components can register a need to maintain
|
|
per-architecture data.
|
|
|
|
The mechanisms below ensures that there is only a loose connection
|
|
between the set-architecture command and the various GDB
|
|
components. Each component can independently register their need
|
|
to maintain architecture specific data with gdbarch.
|
|
|
|
Pragmatics:
|
|
|
|
Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
|
|
didn't scale.
|
|
|
|
The more traditional mega-struct containing architecture specific
|
|
data for all the various GDB components was also considered. Since
|
|
GDB is built from a variable number of (fairly independent)
|
|
components it was determined that the global aproach was not
|
|
applicable. */
|
|
|
|
|
|
/* Register a new architectural family with GDB.
|
|
|
|
Register support for the specified ARCHITECTURE with GDB. When
|
|
gdbarch determines that the specified architecture has been
|
|
selected, the corresponding INIT function is called.
|
|
|
|
--
|
|
|
|
The INIT function takes two parameters: INFO which contains the
|
|
information available to gdbarch about the (possibly new)
|
|
architecture; ARCHES which is a list of the previously created
|
|
\`\`struct gdbarch'' for this architecture.
|
|
|
|
The INFO parameter is, as far as possible, be pre-initialized with
|
|
information obtained from INFO.ABFD or the global defaults.
|
|
|
|
The ARCHES parameter is a linked list (sorted most recently used)
|
|
of all the previously created architures for this architecture
|
|
family. The (possibly NULL) ARCHES->gdbarch can used to access
|
|
values from the previously selected architecture for this
|
|
architecture family.
|
|
|
|
The INIT function shall return any of: NULL - indicating that it
|
|
doesn't recognize the selected architecture; an existing \`\`struct
|
|
gdbarch'' from the ARCHES list - indicating that the new
|
|
architecture is just a synonym for an earlier architecture (see
|
|
gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
|
|
- that describes the selected architecture (see gdbarch_alloc()).
|
|
|
|
The DUMP_TDEP function shall print out all target specific values.
|
|
Care should be taken to ensure that the function works in both the
|
|
multi-arch and non- multi-arch cases. */
|
|
|
|
struct gdbarch_list
|
|
{
|
|
struct gdbarch *gdbarch;
|
|
struct gdbarch_list *next;
|
|
};
|
|
|
|
struct gdbarch_info
|
|
{
|
|
/* Use default: NULL (ZERO). */
|
|
const struct bfd_arch_info *bfd_arch_info;
|
|
|
|
/* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
|
|
enum bfd_endian byte_order;
|
|
|
|
enum bfd_endian byte_order_for_code;
|
|
|
|
/* Use default: NULL (ZERO). */
|
|
bfd *abfd;
|
|
|
|
/* Use default: NULL (ZERO). */
|
|
void *tdep_info;
|
|
|
|
/* Use default: GDB_OSABI_UNINITIALIZED (-1). */
|
|
enum gdb_osabi osabi;
|
|
|
|
/* Use default: NULL (ZERO). */
|
|
const struct target_desc *target_desc;
|
|
};
|
|
|
|
typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
|
|
typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
|
|
|
|
/* DEPRECATED - use gdbarch_register() */
|
|
extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
|
|
|
|
extern void gdbarch_register (enum bfd_architecture architecture,
|
|
gdbarch_init_ftype *,
|
|
gdbarch_dump_tdep_ftype *);
|
|
|
|
|
|
/* Return a freshly allocated, NULL terminated, array of the valid
|
|
architecture names. Since architectures are registered during the
|
|
_initialize phase this function only returns useful information
|
|
once initialization has been completed. */
|
|
|
|
extern const char **gdbarch_printable_names (void);
|
|
|
|
|
|
/* Helper function. Search the list of ARCHES for a GDBARCH that
|
|
matches the information provided by INFO. */
|
|
|
|
extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
|
|
|
|
|
|
/* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
|
|
basic initialization using values obtained from the INFO and TDEP
|
|
parameters. set_gdbarch_*() functions are called to complete the
|
|
initialization of the object. */
|
|
|
|
extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
|
|
|
|
|
|
/* Helper function. Free a partially-constructed \`\`struct gdbarch''.
|
|
It is assumed that the caller freeds the \`\`struct
|
|
gdbarch_tdep''. */
|
|
|
|
extern void gdbarch_free (struct gdbarch *);
|
|
|
|
|
|
/* Helper function. Allocate memory from the \`\`struct gdbarch''
|
|
obstack. The memory is freed when the corresponding architecture
|
|
is also freed. */
|
|
|
|
extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
|
|
#define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
|
|
#define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
|
|
|
|
/* Duplicate STRING, returning an equivalent string that's allocated on the
|
|
obstack associated with GDBARCH. The string is freed when the corresponding
|
|
architecture is also freed. */
|
|
|
|
extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
|
|
|
|
/* Helper function. Force an update of the current architecture.
|
|
|
|
The actual architecture selected is determined by INFO, \`\`(gdb) set
|
|
architecture'' et.al., the existing architecture and BFD's default
|
|
architecture. INFO should be initialized to zero and then selected
|
|
fields should be updated.
|
|
|
|
Returns non-zero if the update succeeds. */
|
|
|
|
extern int gdbarch_update_p (struct gdbarch_info info);
|
|
|
|
|
|
/* Helper function. Find an architecture matching info.
|
|
|
|
INFO should be initialized using gdbarch_info_init, relevant fields
|
|
set, and then finished using gdbarch_info_fill.
|
|
|
|
Returns the corresponding architecture, or NULL if no matching
|
|
architecture was found. */
|
|
|
|
extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
|
|
|
|
|
|
/* Helper function. Set the target gdbarch to "gdbarch". */
|
|
|
|
extern void set_target_gdbarch (struct gdbarch *gdbarch);
|
|
|
|
|
|
/* Register per-architecture data-pointer.
|
|
|
|
Reserve space for a per-architecture data-pointer. An identifier
|
|
for the reserved data-pointer is returned. That identifer should
|
|
be saved in a local static variable.
|
|
|
|
Memory for the per-architecture data shall be allocated using
|
|
gdbarch_obstack_zalloc. That memory will be deleted when the
|
|
corresponding architecture object is deleted.
|
|
|
|
When a previously created architecture is re-selected, the
|
|
per-architecture data-pointer for that previous architecture is
|
|
restored. INIT() is not re-called.
|
|
|
|
Multiple registrarants for any architecture are allowed (and
|
|
strongly encouraged). */
|
|
|
|
struct gdbarch_data;
|
|
|
|
typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
|
|
extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
|
|
typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
|
|
extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
|
|
extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
|
|
struct gdbarch_data *data,
|
|
void *pointer);
|
|
|
|
extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
|
|
|
|
|
|
/* Set the dynamic target-system-dependent parameters (architecture,
|
|
byte-order, ...) using information found in the BFD. */
|
|
|
|
extern void set_gdbarch_from_file (bfd *);
|
|
|
|
|
|
/* Initialize the current architecture to the "first" one we find on
|
|
our list. */
|
|
|
|
extern void initialize_current_architecture (void);
|
|
|
|
/* gdbarch trace variable */
|
|
extern unsigned int gdbarch_debug;
|
|
|
|
extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
|
|
|
|
#endif
|
|
EOF
|
|
exec 1>&2
|
|
#../move-if-change new-gdbarch.h gdbarch.h
|
|
compare_new gdbarch.h
|
|
|
|
|
|
#
|
|
# C file
|
|
#
|
|
|
|
exec > new-gdbarch.c
|
|
copyright
|
|
cat <<EOF
|
|
|
|
#include "defs.h"
|
|
#include "arch-utils.h"
|
|
|
|
#include "gdbcmd.h"
|
|
#include "inferior.h"
|
|
#include "symcat.h"
|
|
|
|
#include "floatformat.h"
|
|
#include "reggroups.h"
|
|
#include "osabi.h"
|
|
#include "gdb_obstack.h"
|
|
#include "observer.h"
|
|
#include "regcache.h"
|
|
#include "objfiles.h"
|
|
|
|
/* Static function declarations */
|
|
|
|
static void alloc_gdbarch_data (struct gdbarch *);
|
|
|
|
/* Non-zero if we want to trace architecture code. */
|
|
|
|
#ifndef GDBARCH_DEBUG
|
|
#define GDBARCH_DEBUG 0
|
|
#endif
|
|
unsigned int gdbarch_debug = GDBARCH_DEBUG;
|
|
static void
|
|
show_gdbarch_debug (struct ui_file *file, int from_tty,
|
|
struct cmd_list_element *c, const char *value)
|
|
{
|
|
fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
|
|
}
|
|
|
|
static const char *
|
|
pformat (const struct floatformat **format)
|
|
{
|
|
if (format == NULL)
|
|
return "(null)";
|
|
else
|
|
/* Just print out one of them - this is only for diagnostics. */
|
|
return format[0]->name;
|
|
}
|
|
|
|
static const char *
|
|
pstring (const char *string)
|
|
{
|
|
if (string == NULL)
|
|
return "(null)";
|
|
return string;
|
|
}
|
|
|
|
/* Helper function to print a list of strings, represented as "const
|
|
char *const *". The list is printed comma-separated. */
|
|
|
|
static char *
|
|
pstring_list (const char *const *list)
|
|
{
|
|
static char ret[100];
|
|
const char *const *p;
|
|
size_t offset = 0;
|
|
|
|
if (list == NULL)
|
|
return "(null)";
|
|
|
|
ret[0] = '\0';
|
|
for (p = list; *p != NULL && offset < sizeof (ret); ++p)
|
|
{
|
|
size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
|
|
offset += 2 + s;
|
|
}
|
|
|
|
if (offset > 0)
|
|
{
|
|
gdb_assert (offset - 2 < sizeof (ret));
|
|
ret[offset - 2] = '\0';
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
EOF
|
|
|
|
# gdbarch open the gdbarch object
|
|
printf "\n"
|
|
printf "/* Maintain the struct gdbarch object. */\n"
|
|
printf "\n"
|
|
printf "struct gdbarch\n"
|
|
printf "{\n"
|
|
printf " /* Has this architecture been fully initialized? */\n"
|
|
printf " int initialized_p;\n"
|
|
printf "\n"
|
|
printf " /* An obstack bound to the lifetime of the architecture. */\n"
|
|
printf " struct obstack *obstack;\n"
|
|
printf "\n"
|
|
printf " /* basic architectural information. */\n"
|
|
function_list | while do_read
|
|
do
|
|
if class_is_info_p
|
|
then
|
|
printf " ${returntype} ${function};\n"
|
|
fi
|
|
done
|
|
printf "\n"
|
|
printf " /* target specific vector. */\n"
|
|
printf " struct gdbarch_tdep *tdep;\n"
|
|
printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
|
|
printf "\n"
|
|
printf " /* per-architecture data-pointers. */\n"
|
|
printf " unsigned nr_data;\n"
|
|
printf " void **data;\n"
|
|
printf "\n"
|
|
cat <<EOF
|
|
/* Multi-arch values.
|
|
|
|
When extending this structure you must:
|
|
|
|
Add the field below.
|
|
|
|
Declare set/get functions and define the corresponding
|
|
macro in gdbarch.h.
|
|
|
|
gdbarch_alloc(): If zero/NULL is not a suitable default,
|
|
initialize the new field.
|
|
|
|
verify_gdbarch(): Confirm that the target updated the field
|
|
correctly.
|
|
|
|
gdbarch_dump(): Add a fprintf_unfiltered call so that the new
|
|
field is dumped out
|
|
|
|
get_gdbarch(): Implement the set/get functions (probably using
|
|
the macro's as shortcuts).
|
|
|
|
*/
|
|
|
|
EOF
|
|
function_list | while do_read
|
|
do
|
|
if class_is_variable_p
|
|
then
|
|
printf " ${returntype} ${function};\n"
|
|
elif class_is_function_p
|
|
then
|
|
printf " gdbarch_${function}_ftype *${function};\n"
|
|
fi
|
|
done
|
|
printf "};\n"
|
|
|
|
# Create a new gdbarch struct
|
|
cat <<EOF
|
|
|
|
/* Create a new \`\`struct gdbarch'' based on information provided by
|
|
\`\`struct gdbarch_info''. */
|
|
EOF
|
|
printf "\n"
|
|
cat <<EOF
|
|
struct gdbarch *
|
|
gdbarch_alloc (const struct gdbarch_info *info,
|
|
struct gdbarch_tdep *tdep)
|
|
{
|
|
struct gdbarch *gdbarch;
|
|
|
|
/* Create an obstack for allocating all the per-architecture memory,
|
|
then use that to allocate the architecture vector. */
|
|
struct obstack *obstack = XNEW (struct obstack);
|
|
obstack_init (obstack);
|
|
gdbarch = XOBNEW (obstack, struct gdbarch);
|
|
memset (gdbarch, 0, sizeof (*gdbarch));
|
|
gdbarch->obstack = obstack;
|
|
|
|
alloc_gdbarch_data (gdbarch);
|
|
|
|
gdbarch->tdep = tdep;
|
|
EOF
|
|
printf "\n"
|
|
function_list | while do_read
|
|
do
|
|
if class_is_info_p
|
|
then
|
|
printf " gdbarch->${function} = info->${function};\n"
|
|
fi
|
|
done
|
|
printf "\n"
|
|
printf " /* Force the explicit initialization of these. */\n"
|
|
function_list | while do_read
|
|
do
|
|
if class_is_function_p || class_is_variable_p
|
|
then
|
|
if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
|
|
then
|
|
printf " gdbarch->${function} = ${predefault};\n"
|
|
fi
|
|
fi
|
|
done
|
|
cat <<EOF
|
|
/* gdbarch_alloc() */
|
|
|
|
return gdbarch;
|
|
}
|
|
EOF
|
|
|
|
# Free a gdbarch struct.
|
|
printf "\n"
|
|
printf "\n"
|
|
cat <<EOF
|
|
/* Allocate extra space using the per-architecture obstack. */
|
|
|
|
void *
|
|
gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
|
|
{
|
|
void *data = obstack_alloc (arch->obstack, size);
|
|
|
|
memset (data, 0, size);
|
|
return data;
|
|
}
|
|
|
|
/* See gdbarch.h. */
|
|
|
|
char *
|
|
gdbarch_obstack_strdup (struct gdbarch *arch, const char *string)
|
|
{
|
|
return obstack_strdup (arch->obstack, string);
|
|
}
|
|
|
|
|
|
/* Free a gdbarch struct. This should never happen in normal
|
|
operation --- once you've created a gdbarch, you keep it around.
|
|
However, if an architecture's init function encounters an error
|
|
building the structure, it may need to clean up a partially
|
|
constructed gdbarch. */
|
|
|
|
void
|
|
gdbarch_free (struct gdbarch *arch)
|
|
{
|
|
struct obstack *obstack;
|
|
|
|
gdb_assert (arch != NULL);
|
|
gdb_assert (!arch->initialized_p);
|
|
obstack = arch->obstack;
|
|
obstack_free (obstack, 0); /* Includes the ARCH. */
|
|
xfree (obstack);
|
|
}
|
|
EOF
|
|
|
|
# verify a new architecture
|
|
cat <<EOF
|
|
|
|
|
|
/* Ensure that all values in a GDBARCH are reasonable. */
|
|
|
|
static void
|
|
verify_gdbarch (struct gdbarch *gdbarch)
|
|
{
|
|
struct ui_file *log;
|
|
struct cleanup *cleanups;
|
|
long length;
|
|
char *buf;
|
|
|
|
log = mem_fileopen ();
|
|
cleanups = make_cleanup_ui_file_delete (log);
|
|
/* fundamental */
|
|
if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
|
|
fprintf_unfiltered (log, "\n\tbyte-order");
|
|
if (gdbarch->bfd_arch_info == NULL)
|
|
fprintf_unfiltered (log, "\n\tbfd_arch_info");
|
|
/* Check those that need to be defined for the given multi-arch level. */
|
|
EOF
|
|
function_list | while do_read
|
|
do
|
|
if class_is_function_p || class_is_variable_p
|
|
then
|
|
if [ "x${invalid_p}" = "x0" ]
|
|
then
|
|
printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
|
|
elif class_is_predicate_p
|
|
then
|
|
printf " /* Skip verify of ${function}, has predicate. */\n"
|
|
# FIXME: See do_read for potential simplification
|
|
elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
|
|
then
|
|
printf " if (${invalid_p})\n"
|
|
printf " gdbarch->${function} = ${postdefault};\n"
|
|
elif [ -n "${predefault}" -a -n "${postdefault}" ]
|
|
then
|
|
printf " if (gdbarch->${function} == ${predefault})\n"
|
|
printf " gdbarch->${function} = ${postdefault};\n"
|
|
elif [ -n "${postdefault}" ]
|
|
then
|
|
printf " if (gdbarch->${function} == 0)\n"
|
|
printf " gdbarch->${function} = ${postdefault};\n"
|
|
elif [ -n "${invalid_p}" ]
|
|
then
|
|
printf " if (${invalid_p})\n"
|
|
printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
|
|
elif [ -n "${predefault}" ]
|
|
then
|
|
printf " if (gdbarch->${function} == ${predefault})\n"
|
|
printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
|
|
fi
|
|
fi
|
|
done
|
|
cat <<EOF
|
|
buf = ui_file_xstrdup (log, &length);
|
|
make_cleanup (xfree, buf);
|
|
if (length > 0)
|
|
internal_error (__FILE__, __LINE__,
|
|
_("verify_gdbarch: the following are invalid ...%s"),
|
|
buf);
|
|
do_cleanups (cleanups);
|
|
}
|
|
EOF
|
|
|
|
# dump the structure
|
|
printf "\n"
|
|
printf "\n"
|
|
cat <<EOF
|
|
/* Print out the details of the current architecture. */
|
|
|
|
void
|
|
gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
|
|
{
|
|
const char *gdb_nm_file = "<not-defined>";
|
|
|
|
#if defined (GDB_NM_FILE)
|
|
gdb_nm_file = GDB_NM_FILE;
|
|
#endif
|
|
fprintf_unfiltered (file,
|
|
"gdbarch_dump: GDB_NM_FILE = %s\\n",
|
|
gdb_nm_file);
|
|
EOF
|
|
function_list | sort -t: -k 3 | while do_read
|
|
do
|
|
# First the predicate
|
|
if class_is_predicate_p
|
|
then
|
|
printf " fprintf_unfiltered (file,\n"
|
|
printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
|
|
printf " gdbarch_${function}_p (gdbarch));\n"
|
|
fi
|
|
# Print the corresponding value.
|
|
if class_is_function_p
|
|
then
|
|
printf " fprintf_unfiltered (file,\n"
|
|
printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
|
|
printf " host_address_to_string (gdbarch->${function}));\n"
|
|
else
|
|
# It is a variable
|
|
case "${print}:${returntype}" in
|
|
:CORE_ADDR )
|
|
fmt="%s"
|
|
print="core_addr_to_string_nz (gdbarch->${function})"
|
|
;;
|
|
:* )
|
|
fmt="%s"
|
|
print="plongest (gdbarch->${function})"
|
|
;;
|
|
* )
|
|
fmt="%s"
|
|
;;
|
|
esac
|
|
printf " fprintf_unfiltered (file,\n"
|
|
printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
|
|
printf " ${print});\n"
|
|
fi
|
|
done
|
|
cat <<EOF
|
|
if (gdbarch->dump_tdep != NULL)
|
|
gdbarch->dump_tdep (gdbarch, file);
|
|
}
|
|
EOF
|
|
|
|
|
|
# GET/SET
|
|
printf "\n"
|
|
cat <<EOF
|
|
struct gdbarch_tdep *
|
|
gdbarch_tdep (struct gdbarch *gdbarch)
|
|
{
|
|
if (gdbarch_debug >= 2)
|
|
fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
|
|
return gdbarch->tdep;
|
|
}
|
|
EOF
|
|
printf "\n"
|
|
function_list | while do_read
|
|
do
|
|
if class_is_predicate_p
|
|
then
|
|
printf "\n"
|
|
printf "int\n"
|
|
printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
|
|
printf "{\n"
|
|
printf " gdb_assert (gdbarch != NULL);\n"
|
|
printf " return ${predicate};\n"
|
|
printf "}\n"
|
|
fi
|
|
if class_is_function_p
|
|
then
|
|
printf "\n"
|
|
printf "${returntype}\n"
|
|
if [ "x${formal}" = "xvoid" ]
|
|
then
|
|
printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
|
|
else
|
|
printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
|
|
fi
|
|
printf "{\n"
|
|
printf " gdb_assert (gdbarch != NULL);\n"
|
|
printf " gdb_assert (gdbarch->${function} != NULL);\n"
|
|
if class_is_predicate_p && test -n "${predefault}"
|
|
then
|
|
# Allow a call to a function with a predicate.
|
|
printf " /* Do not check predicate: ${predicate}, allow call. */\n"
|
|
fi
|
|
printf " if (gdbarch_debug >= 2)\n"
|
|
printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
|
|
if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
|
|
then
|
|
if class_is_multiarch_p
|
|
then
|
|
params="gdbarch"
|
|
else
|
|
params=""
|
|
fi
|
|
else
|
|
if class_is_multiarch_p
|
|
then
|
|
params="gdbarch, ${actual}"
|
|
else
|
|
params="${actual}"
|
|
fi
|
|
fi
|
|
if [ "x${returntype}" = "xvoid" ]
|
|
then
|
|
printf " gdbarch->${function} (${params});\n"
|
|
else
|
|
printf " return gdbarch->${function} (${params});\n"
|
|
fi
|
|
printf "}\n"
|
|
printf "\n"
|
|
printf "void\n"
|
|
printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
|
|
printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
|
|
printf "{\n"
|
|
printf " gdbarch->${function} = ${function};\n"
|
|
printf "}\n"
|
|
elif class_is_variable_p
|
|
then
|
|
printf "\n"
|
|
printf "${returntype}\n"
|
|
printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
|
|
printf "{\n"
|
|
printf " gdb_assert (gdbarch != NULL);\n"
|
|
if [ "x${invalid_p}" = "x0" ]
|
|
then
|
|
printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
|
|
elif [ -n "${invalid_p}" ]
|
|
then
|
|
printf " /* Check variable is valid. */\n"
|
|
printf " gdb_assert (!(${invalid_p}));\n"
|
|
elif [ -n "${predefault}" ]
|
|
then
|
|
printf " /* Check variable changed from pre-default. */\n"
|
|
printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
|
|
fi
|
|
printf " if (gdbarch_debug >= 2)\n"
|
|
printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
|
|
printf " return gdbarch->${function};\n"
|
|
printf "}\n"
|
|
printf "\n"
|
|
printf "void\n"
|
|
printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
|
|
printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
|
|
printf "{\n"
|
|
printf " gdbarch->${function} = ${function};\n"
|
|
printf "}\n"
|
|
elif class_is_info_p
|
|
then
|
|
printf "\n"
|
|
printf "${returntype}\n"
|
|
printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
|
|
printf "{\n"
|
|
printf " gdb_assert (gdbarch != NULL);\n"
|
|
printf " if (gdbarch_debug >= 2)\n"
|
|
printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
|
|
printf " return gdbarch->${function};\n"
|
|
printf "}\n"
|
|
fi
|
|
done
|
|
|
|
# All the trailing guff
|
|
cat <<EOF
|
|
|
|
|
|
/* Keep a registry of per-architecture data-pointers required by GDB
|
|
modules. */
|
|
|
|
struct gdbarch_data
|
|
{
|
|
unsigned index;
|
|
int init_p;
|
|
gdbarch_data_pre_init_ftype *pre_init;
|
|
gdbarch_data_post_init_ftype *post_init;
|
|
};
|
|
|
|
struct gdbarch_data_registration
|
|
{
|
|
struct gdbarch_data *data;
|
|
struct gdbarch_data_registration *next;
|
|
};
|
|
|
|
struct gdbarch_data_registry
|
|
{
|
|
unsigned nr;
|
|
struct gdbarch_data_registration *registrations;
|
|
};
|
|
|
|
struct gdbarch_data_registry gdbarch_data_registry =
|
|
{
|
|
0, NULL,
|
|
};
|
|
|
|
static struct gdbarch_data *
|
|
gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
|
|
gdbarch_data_post_init_ftype *post_init)
|
|
{
|
|
struct gdbarch_data_registration **curr;
|
|
|
|
/* Append the new registration. */
|
|
for (curr = &gdbarch_data_registry.registrations;
|
|
(*curr) != NULL;
|
|
curr = &(*curr)->next);
|
|
(*curr) = XNEW (struct gdbarch_data_registration);
|
|
(*curr)->next = NULL;
|
|
(*curr)->data = XNEW (struct gdbarch_data);
|
|
(*curr)->data->index = gdbarch_data_registry.nr++;
|
|
(*curr)->data->pre_init = pre_init;
|
|
(*curr)->data->post_init = post_init;
|
|
(*curr)->data->init_p = 1;
|
|
return (*curr)->data;
|
|
}
|
|
|
|
struct gdbarch_data *
|
|
gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
|
|
{
|
|
return gdbarch_data_register (pre_init, NULL);
|
|
}
|
|
|
|
struct gdbarch_data *
|
|
gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
|
|
{
|
|
return gdbarch_data_register (NULL, post_init);
|
|
}
|
|
|
|
/* Create/delete the gdbarch data vector. */
|
|
|
|
static void
|
|
alloc_gdbarch_data (struct gdbarch *gdbarch)
|
|
{
|
|
gdb_assert (gdbarch->data == NULL);
|
|
gdbarch->nr_data = gdbarch_data_registry.nr;
|
|
gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
|
|
}
|
|
|
|
/* Initialize the current value of the specified per-architecture
|
|
data-pointer. */
|
|
|
|
void
|
|
deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
|
|
struct gdbarch_data *data,
|
|
void *pointer)
|
|
{
|
|
gdb_assert (data->index < gdbarch->nr_data);
|
|
gdb_assert (gdbarch->data[data->index] == NULL);
|
|
gdb_assert (data->pre_init == NULL);
|
|
gdbarch->data[data->index] = pointer;
|
|
}
|
|
|
|
/* Return the current value of the specified per-architecture
|
|
data-pointer. */
|
|
|
|
void *
|
|
gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
|
|
{
|
|
gdb_assert (data->index < gdbarch->nr_data);
|
|
if (gdbarch->data[data->index] == NULL)
|
|
{
|
|
/* The data-pointer isn't initialized, call init() to get a
|
|
value. */
|
|
if (data->pre_init != NULL)
|
|
/* Mid architecture creation: pass just the obstack, and not
|
|
the entire architecture, as that way it isn't possible for
|
|
pre-init code to refer to undefined architecture
|
|
fields. */
|
|
gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
|
|
else if (gdbarch->initialized_p
|
|
&& data->post_init != NULL)
|
|
/* Post architecture creation: pass the entire architecture
|
|
(as all fields are valid), but be careful to also detect
|
|
recursive references. */
|
|
{
|
|
gdb_assert (data->init_p);
|
|
data->init_p = 0;
|
|
gdbarch->data[data->index] = data->post_init (gdbarch);
|
|
data->init_p = 1;
|
|
}
|
|
else
|
|
/* The architecture initialization hasn't completed - punt -
|
|
hope that the caller knows what they are doing. Once
|
|
deprecated_set_gdbarch_data has been initialized, this can be
|
|
changed to an internal error. */
|
|
return NULL;
|
|
gdb_assert (gdbarch->data[data->index] != NULL);
|
|
}
|
|
return gdbarch->data[data->index];
|
|
}
|
|
|
|
|
|
/* Keep a registry of the architectures known by GDB. */
|
|
|
|
struct gdbarch_registration
|
|
{
|
|
enum bfd_architecture bfd_architecture;
|
|
gdbarch_init_ftype *init;
|
|
gdbarch_dump_tdep_ftype *dump_tdep;
|
|
struct gdbarch_list *arches;
|
|
struct gdbarch_registration *next;
|
|
};
|
|
|
|
static struct gdbarch_registration *gdbarch_registry = NULL;
|
|
|
|
static void
|
|
append_name (const char ***buf, int *nr, const char *name)
|
|
{
|
|
*buf = XRESIZEVEC (const char *, *buf, *nr + 1);
|
|
(*buf)[*nr] = name;
|
|
*nr += 1;
|
|
}
|
|
|
|
const char **
|
|
gdbarch_printable_names (void)
|
|
{
|
|
/* Accumulate a list of names based on the registed list of
|
|
architectures. */
|
|
int nr_arches = 0;
|
|
const char **arches = NULL;
|
|
struct gdbarch_registration *rego;
|
|
|
|
for (rego = gdbarch_registry;
|
|
rego != NULL;
|
|
rego = rego->next)
|
|
{
|
|
const struct bfd_arch_info *ap;
|
|
ap = bfd_lookup_arch (rego->bfd_architecture, 0);
|
|
if (ap == NULL)
|
|
internal_error (__FILE__, __LINE__,
|
|
_("gdbarch_architecture_names: multi-arch unknown"));
|
|
do
|
|
{
|
|
append_name (&arches, &nr_arches, ap->printable_name);
|
|
ap = ap->next;
|
|
}
|
|
while (ap != NULL);
|
|
}
|
|
append_name (&arches, &nr_arches, NULL);
|
|
return arches;
|
|
}
|
|
|
|
|
|
void
|
|
gdbarch_register (enum bfd_architecture bfd_architecture,
|
|
gdbarch_init_ftype *init,
|
|
gdbarch_dump_tdep_ftype *dump_tdep)
|
|
{
|
|
struct gdbarch_registration **curr;
|
|
const struct bfd_arch_info *bfd_arch_info;
|
|
|
|
/* Check that BFD recognizes this architecture */
|
|
bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
|
|
if (bfd_arch_info == NULL)
|
|
{
|
|
internal_error (__FILE__, __LINE__,
|
|
_("gdbarch: Attempt to register "
|
|
"unknown architecture (%d)"),
|
|
bfd_architecture);
|
|
}
|
|
/* Check that we haven't seen this architecture before. */
|
|
for (curr = &gdbarch_registry;
|
|
(*curr) != NULL;
|
|
curr = &(*curr)->next)
|
|
{
|
|
if (bfd_architecture == (*curr)->bfd_architecture)
|
|
internal_error (__FILE__, __LINE__,
|
|
_("gdbarch: Duplicate registration "
|
|
"of architecture (%s)"),
|
|
bfd_arch_info->printable_name);
|
|
}
|
|
/* log it */
|
|
if (gdbarch_debug)
|
|
fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
|
|
bfd_arch_info->printable_name,
|
|
host_address_to_string (init));
|
|
/* Append it */
|
|
(*curr) = XNEW (struct gdbarch_registration);
|
|
(*curr)->bfd_architecture = bfd_architecture;
|
|
(*curr)->init = init;
|
|
(*curr)->dump_tdep = dump_tdep;
|
|
(*curr)->arches = NULL;
|
|
(*curr)->next = NULL;
|
|
}
|
|
|
|
void
|
|
register_gdbarch_init (enum bfd_architecture bfd_architecture,
|
|
gdbarch_init_ftype *init)
|
|
{
|
|
gdbarch_register (bfd_architecture, init, NULL);
|
|
}
|
|
|
|
|
|
/* Look for an architecture using gdbarch_info. */
|
|
|
|
struct gdbarch_list *
|
|
gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
|
|
const struct gdbarch_info *info)
|
|
{
|
|
for (; arches != NULL; arches = arches->next)
|
|
{
|
|
if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
|
|
continue;
|
|
if (info->byte_order != arches->gdbarch->byte_order)
|
|
continue;
|
|
if (info->osabi != arches->gdbarch->osabi)
|
|
continue;
|
|
if (info->target_desc != arches->gdbarch->target_desc)
|
|
continue;
|
|
return arches;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Find an architecture that matches the specified INFO. Create a new
|
|
architecture if needed. Return that new architecture. */
|
|
|
|
struct gdbarch *
|
|
gdbarch_find_by_info (struct gdbarch_info info)
|
|
{
|
|
struct gdbarch *new_gdbarch;
|
|
struct gdbarch_registration *rego;
|
|
|
|
/* Fill in missing parts of the INFO struct using a number of
|
|
sources: "set ..."; INFOabfd supplied; and the global
|
|
defaults. */
|
|
gdbarch_info_fill (&info);
|
|
|
|
/* Must have found some sort of architecture. */
|
|
gdb_assert (info.bfd_arch_info != NULL);
|
|
|
|
if (gdbarch_debug)
|
|
{
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"gdbarch_find_by_info: info.bfd_arch_info %s\n",
|
|
(info.bfd_arch_info != NULL
|
|
? info.bfd_arch_info->printable_name
|
|
: "(null)"));
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"gdbarch_find_by_info: info.byte_order %d (%s)\n",
|
|
info.byte_order,
|
|
(info.byte_order == BFD_ENDIAN_BIG ? "big"
|
|
: info.byte_order == BFD_ENDIAN_LITTLE ? "little"
|
|
: "default"));
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"gdbarch_find_by_info: info.osabi %d (%s)\n",
|
|
info.osabi, gdbarch_osabi_name (info.osabi));
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"gdbarch_find_by_info: info.abfd %s\n",
|
|
host_address_to_string (info.abfd));
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"gdbarch_find_by_info: info.tdep_info %s\n",
|
|
host_address_to_string (info.tdep_info));
|
|
}
|
|
|
|
/* Find the tdep code that knows about this architecture. */
|
|
for (rego = gdbarch_registry;
|
|
rego != NULL;
|
|
rego = rego->next)
|
|
if (rego->bfd_architecture == info.bfd_arch_info->arch)
|
|
break;
|
|
if (rego == NULL)
|
|
{
|
|
if (gdbarch_debug)
|
|
fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
|
|
"No matching architecture\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Ask the tdep code for an architecture that matches "info". */
|
|
new_gdbarch = rego->init (info, rego->arches);
|
|
|
|
/* Did the tdep code like it? No. Reject the change and revert to
|
|
the old architecture. */
|
|
if (new_gdbarch == NULL)
|
|
{
|
|
if (gdbarch_debug)
|
|
fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
|
|
"Target rejected architecture\n");
|
|
return NULL;
|
|
}
|
|
|
|
/* Is this a pre-existing architecture (as determined by already
|
|
being initialized)? Move it to the front of the architecture
|
|
list (keeping the list sorted Most Recently Used). */
|
|
if (new_gdbarch->initialized_p)
|
|
{
|
|
struct gdbarch_list **list;
|
|
struct gdbarch_list *self;
|
|
if (gdbarch_debug)
|
|
fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
|
|
"Previous architecture %s (%s) selected\n",
|
|
host_address_to_string (new_gdbarch),
|
|
new_gdbarch->bfd_arch_info->printable_name);
|
|
/* Find the existing arch in the list. */
|
|
for (list = ®o->arches;
|
|
(*list) != NULL && (*list)->gdbarch != new_gdbarch;
|
|
list = &(*list)->next);
|
|
/* It had better be in the list of architectures. */
|
|
gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
|
|
/* Unlink SELF. */
|
|
self = (*list);
|
|
(*list) = self->next;
|
|
/* Insert SELF at the front. */
|
|
self->next = rego->arches;
|
|
rego->arches = self;
|
|
/* Return it. */
|
|
return new_gdbarch;
|
|
}
|
|
|
|
/* It's a new architecture. */
|
|
if (gdbarch_debug)
|
|
fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
|
|
"New architecture %s (%s) selected\n",
|
|
host_address_to_string (new_gdbarch),
|
|
new_gdbarch->bfd_arch_info->printable_name);
|
|
|
|
/* Insert the new architecture into the front of the architecture
|
|
list (keep the list sorted Most Recently Used). */
|
|
{
|
|
struct gdbarch_list *self = XNEW (struct gdbarch_list);
|
|
self->next = rego->arches;
|
|
self->gdbarch = new_gdbarch;
|
|
rego->arches = self;
|
|
}
|
|
|
|
/* Check that the newly installed architecture is valid. Plug in
|
|
any post init values. */
|
|
new_gdbarch->dump_tdep = rego->dump_tdep;
|
|
verify_gdbarch (new_gdbarch);
|
|
new_gdbarch->initialized_p = 1;
|
|
|
|
if (gdbarch_debug)
|
|
gdbarch_dump (new_gdbarch, gdb_stdlog);
|
|
|
|
return new_gdbarch;
|
|
}
|
|
|
|
/* Make the specified architecture current. */
|
|
|
|
void
|
|
set_target_gdbarch (struct gdbarch *new_gdbarch)
|
|
{
|
|
gdb_assert (new_gdbarch != NULL);
|
|
gdb_assert (new_gdbarch->initialized_p);
|
|
current_inferior ()->gdbarch = new_gdbarch;
|
|
observer_notify_architecture_changed (new_gdbarch);
|
|
registers_changed ();
|
|
}
|
|
|
|
/* Return the current inferior's arch. */
|
|
|
|
struct gdbarch *
|
|
target_gdbarch (void)
|
|
{
|
|
return current_inferior ()->gdbarch;
|
|
}
|
|
|
|
extern void _initialize_gdbarch (void);
|
|
|
|
void
|
|
_initialize_gdbarch (void)
|
|
{
|
|
add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
|
|
Set architecture debugging."), _("\\
|
|
Show architecture debugging."), _("\\
|
|
When non-zero, architecture debugging is enabled."),
|
|
NULL,
|
|
show_gdbarch_debug,
|
|
&setdebuglist, &showdebuglist);
|
|
}
|
|
EOF
|
|
|
|
# close things off
|
|
exec 1>&2
|
|
#../move-if-change new-gdbarch.c gdbarch.c
|
|
compare_new gdbarch.c
|