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3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
112 lines
3.7 KiB
Plaintext
112 lines
3.7 KiB
Plaintext
# Copyright 2020-2021 Free Software Foundation, Inc.
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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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# Magic constants used to calculate a starting address when linking
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# "jit" shared libraries. When loaded, will be mapped by jit-elf-main
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# to the same address.
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set jit_load_address 0x7000000
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set jit_load_increment 0x1000000
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# Compile jit-elf-main.c as an executable.
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#
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# BINSUFFIX is appended to the binary name.
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# OPTIONS is passed to gdb_compile when compiling the program.
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#
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# On success, return 0.
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# On failure, return -1.
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proc compile_jit_main {main_srcfile main_binfile options} {
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global jit_load_address jit_load_increment
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set options [concat \
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$options \
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additional_flags=-DLOAD_ADDRESS=$jit_load_address \
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additional_flags=-DLOAD_INCREMENT=$jit_load_increment \
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debug]
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if { [gdb_compile ${main_srcfile} ${main_binfile} \
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executable $options] != "" } {
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set f [file tail $main_binfile]
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untested "failed to compile $f"
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return -1
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}
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return 0
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}
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# Compile jit-elf-main.c as a shared library.
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#
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# OPTIONS is passed to gdb_compile when compiling the program.
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#
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# On success, return 0.
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# On failure, return -1.
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proc compile_jit_elf_main_as_so {main_solib_srcfile main_solib_binfile options} {
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global jit_load_address jit_load_increment
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set options [list \
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additional_flags="-DMAIN=jit_dl_main" \
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additional_flags=-DLOAD_ADDRESS=$jit_load_address \
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additional_flags=-DLOAD_INCREMENT=$jit_load_increment \
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debug]
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if { [gdb_compile_shlib ${main_solib_srcfile} ${main_solib_binfile} \
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$options] != "" } {
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set f [file tail $main_solib_binfile]
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untested "failed to compile shared library $f"
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return -1
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}
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return 0
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}
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# Compile jit-elf-solib.c as a shared library in multiple copies and
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# upload them to the target.
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#
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# On success, return a list of target path to the shared libraries.
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# On failure, return -1.
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proc compile_and_download_n_jit_so {jit_solib_basename jit_solib_srcfile count} {
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global jit_load_address jit_load_increment
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set binfiles_target {}
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for {set i 1} {$i <= $count} {incr i} {
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set binfile [standard_output_file ${jit_solib_basename}.$i.so]
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# Note: compiling without debug info by default: some test
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# do symbol renaming by munging on ELF symbol table, and that
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# wouldn't work for .debug sections. Also, output for "info
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# function" changes when debug info is present.
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set addr [format 0x%x [expr $jit_load_address + $jit_load_increment * [expr $i-1]]]
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# Using -Ttext-segment flag to ask linked to relocate everything
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# in the compiled shared library against a fixed base address. Combined
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# with mapping the resulting binary to the same fixed base it allows
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# to dynamically execute functions from it without any further adjustments.
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set options [list \
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additional_flags=-DFUNCTION_NAME=[format "jit_function_%04d" $i] \
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additional_flags=-Xlinker \
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additional_flags=-Ttext-segment=$addr]
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if { [gdb_compile_shlib ${jit_solib_srcfile} ${binfile} \
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$options] != "" } {
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set f [file tail $binfile]
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untested "failed to compile shared library $f"
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return -1
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}
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set path [gdb_remote_download target ${binfile}]
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lappend binfiles_target $path
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}
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return $binfiles_target
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}
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