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The sources for the test-cases gdb.arch/i386-mpx*.exp contain have_mpx functions that test whether the processor supports mpx instructions. OTOH, the test-cases are compiled using -mmpx -fcheck-pointer-bounds, which instrument all functions with mpx instructions. So, the function that is supposed to test whether mpx instruction are supported contains mpx instructions, which is a bit odd. We could fix this by: - factoring out the have_mpx function into a single source file, and - compiling it without "-mmpx -fcheck-pointer-bounds". But having the mpx support test as part of the test-cases seems like an unnecessary complication that makes the test-cases more difficult to analyze, reason about and modify. So we go one step further and factor out the mpx support test in into a gdb_caching_proc. Tested on x86_64-linux. gdb/testsuite/ChangeLog: 2021-01-12 Tom de Vries <tdevries@suse.de> * gdb.arch/i386-mpx-call.c (have_mpx): Remove. (main): Remove call to have_mpx. * gdb.arch/i386-mpx-call.exp: Use have_mpx. * gdb.arch/i386-mpx-map.c (have_mpx): Remove. (main): Remote call to have_mpx. * gdb.arch/i386-mpx-map.exp: Use have_mpx. * gdb.arch/i386-mpx-sigsegv.c (have_mpx): Remove. (main): Remove call to have_mpx. * gdb.arch/i386-mpx-sigsegv.exp: Use have_mpx. * gdb.arch/i386-mpx-simple_segv.c (have_mpx): Remove. (main): Remove call to have_mpx. * gdb.arch/i386-mpx-simple_segv.exp: Use have_mpx. * gdb.arch/i386-mpx.c (have_mpx): Remove. (main): Remote call to have_mpx. * gdb.arch/i386-mpx.exp: Use have_mpx. * lib/gdb.exp (have_mpx): New proc.
140 lines
5.7 KiB
Plaintext
140 lines
5.7 KiB
Plaintext
# Copyright 2013-2021 Free Software Foundation, Inc.
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#
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# Contributed by Intel Corp. <walfred.tedeschi@intel.com>
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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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if { ![istarget i?86-*-*] && ![istarget x86_64-*-* ] } {
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verbose "Skipping x86 MPX tests."
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return
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}
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standard_testfile
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if { ![istarget i?86-*-*] && ![istarget x86_64-*-* ] } {
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verbose "Skipping x86 MPX tests."
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return
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}
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if { ![supports_mpx_check_pointer_bounds] } {
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return -1
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}
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if { ![have_mpx] } {
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unsupported "processor does not support MPX"
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return -1
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}
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set comp_flags "-mmpx -fcheck-pointer-bounds -I${srcdir}/../nat/"
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if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \
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[list debug nowarnings additional_flags=${comp_flags}]] } {
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return -1
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}
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if ![runto_main] {
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untested "could not run to main"
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return -1
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}
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# Test bndcfg register and bndstatus at startup
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set test_string "\\\{raw = 0x\[0-9a-f\]+, config = \\\{base = \[0-9\]+,\
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reserved = \[0-9\]+, preserved = \[0-9\]+, enabled = \[0-9\]+\\\}\\\}"
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gdb_test "print \$bndcfgu" $test_string "bndcfgu formating"
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gdb_test "print \$bndcfgu.config.enabled" "= 1" "test if bndstatus is enabled"
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gdb_test "print \$bndstatus" "\\\{raw = 0x0, status = \\\{bde = 0, error = 0\\\}\\\}" \
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"bndstatus formating"
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gdb_test "print \$bndstatus.raw" "= \\\(void \\\*\\\) 0x0" "bndstatus is zero by startup"
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# Read values from pseudo registers.
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gdb_breakpoint [ gdb_get_line_number "break here" ]
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gdb_continue_to_breakpoint "break here" ".*break here.*"
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set test_string ".*\\\{lbound = 0xa, ubound = 0x13\\\}.*"
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gdb_test "info register bnd0" ".*bnd0$test_string" "pure bnd0 register"
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set test_string ".*\\\{lbound = 0x14, ubound = 0x1d\\\}.*"
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gdb_test "info register bnd1" ".*bnd1$test_string" "pure bnd1 register"
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set test_string ".*\\\{lbound = 0x1e, ubound = 0x27\\\}.*"
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gdb_test "info register bnd2" ".*bnd2$test_string" "pure bnd2 register"
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set test_string ".*\\\{lbound = 0x28, ubound = 0x31\\\}.*"
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gdb_test "info register bnd3" ".*bnd3$test_string" "pure bnd3 register"
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# Read value from registers bndrs.
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set test_string ".*\\\{lbound = 0xa, ubound_raw = 0x\[f\]+ec\\\}.*"
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gdb_test "info register bnd0raw" ".*bnd0$test_string" "pure bnd0r register"
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set test_string ".*\\\{lbound = 0x14, ubound_raw = 0x\[f\]+e2\\\}.*"
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gdb_test "info register bnd1raw" ".*bnd1$test_string" "pure bnd1r register"
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set test_string ".*\\\{lbound = 0x1e, ubound_raw = 0x\[f\]+d8\\\}.*"
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gdb_test "info register bnd2raw" ".*bnd2$test_string" "pure bnd2r register"
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set test_string ".*\\\{lbound = 0x28, ubound_raw = 0x\[f\]+ce\\\}.*"
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gdb_test "info register bnd3raw" ".*bnd3$test_string" "pure bnd3r register"
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# Setting fields on bnds
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set test_string ".*\\\{lbound = 0xa, ubound = 0x400\\\}.*"
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gdb_test "print \$bnd0.ubound = 0x400" "= \\\(void \\\*\\\) 0x400" "set value for bnd0.ubound"
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gdb_test "print \$bnd0" "$test_string" "after setting bnd0.ubound"
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set test_string ".*\\\{lbound = 0xa, ubound_raw = 0x\[f\]+bff\\\}.*"
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gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after set bnd0.ubound"
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set test_string ".*\\\{lbound = 0x1, ubound = 0x400\\\}.*"
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gdb_test "print \$bnd0.lbound = 0x1" "= \\\(void \\\*\\\) 0x1" "set value for bnd0.lbound"
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gdb_test "print \$bnd0" "$test_string" "after setting bnd0.lbound"
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set test_string ".*\\\{lbound = 0x1, ubound_raw = 0x\[f\]+bff\\\}.*"
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gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after set bnd0.lbound"
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# Setting fields on bnd0raw.
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set test_string ".*\\\{lbound = 0x1, ubound_raw = 0x600\\\}.*"
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gdb_test "print /x \$bnd0raw.ubound_raw = 0x600" "= 0x600" "set value for bnd0raw.ubound"
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gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after setting bnd0raw.ubound"
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set test_string ".*\\\{lbound = 0x1, ubound = 0x\[f\]+9ff\\\}.*"
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gdb_test "print /x \$bnd0" "$test_string" "bnd0 after set bnd0raw.ubound"
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set test_string ".*\\\{lbound = 0x100, ubound_raw = 0x600\\\}.*"
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gdb_test "print /x \$bnd0raw.lbound = 0x100" "= 0x100" "set value for bnd0raw.lbound"
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gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after setting bnd0raw.lbound"
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set test_string ".*\\\{lbound = 0x100, ubound = 0x\[f\]+9ff\\\}.*"
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gdb_test "print /x \$bnd0" "$test_string" "bnd0 after set bnd0raw.lbound"
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# Set full value bnd raw
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set test_string ".*\\\{lbound = 0x10, ubound_raw = 0x\[f\]+cff\\\}.*"
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gdb_test "print /x \$bnd0raw = {0x10, ~0x300}" "$test_string" "set full value for bnd0raw"
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set test_string ".*\\\{lbound = 0x10, ubound = 0x300\\\}.*"
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gdb_test "print /x \$bnd0" "$test_string" "bnd0raw after setting full bnd0raw"
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# Set full value bnd
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set test_string ".*\\\{lbound = 0x10, ubound = 0x300\\\}.*"
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gdb_test "print /x \$bnd0 = {0x10, 0x300}" "$test_string" "set full value for bnd0"
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set test_string ".*\\\{lbound = 0x10, ubound_raw = 0x\[f\]+cff\\\}.*"
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gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after setting full bnd0"
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# Test bndcfg register and bndstatus after a failure on bndstr
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gdb_test "print \$bndstatus.status.error" "= 2" "bndstatus error is 2\
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after a failure on allocating an entry"
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# Going to test the python extension for lenght.
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if { [skip_python_tests] } { continue }
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# Verify if size is right
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set test_string ".*\\\: size 17.*"
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gdb_test "print /x \$bnd0 = {0x10, 0x20}" "$test_string" "verify size for bnd0"
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send_gdb "quit\n"
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