1903f0e64b
All callers updated. (amd64_get_insn_details): Handle more 3-byte opcode insns. (amd64_breakpoint_p): Delete. (amd64_displaced_step_fixup): When fixing up after stepping an int3, don't back up pc to the start of the int3. * i386-tdep.c: #include opcode/i386.h. (i386_skip_prefixes): New function. (i386_absolute_jmp_p): Constify argument. (i386_absolute_call_p,i386_ret_p,i386_call_p,i386_syscall_p): Ditto. (i386_breakpoint_p): Delete. (i386_displaced_step_fixup): Handle unnecessary or redundant prefixes. When fixing up after stepping an int3, don't back up pc to the start of the int3. * gdb.arch/amd64-disp-step.S (test_int3): New test. * gdb.arch/amd64-disp-step.exp (test_int3): New test. * gdb.arch/i386-disp-step.S (test_prefixed_abs_jump): New test. (test_prefixed_syscall,test_int3): New tests. * gdb.arch/i386-disp-step.exp (test_prefixed_abs_jump): New test. (test_prefixed_syscall,test_int3): New tests.
170 lines
4.8 KiB
Text
170 lines
4.8 KiB
Text
# Copyright 2009 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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# This file is part of the gdb testsuite.
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# Test i386 displaced stepping.
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if $tracelevel {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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if ![istarget "i?86-*-linux*"] then {
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verbose "Skipping x86 displaced stepping tests."
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return
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}
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set testfile "i386-disp-step"
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set srcfile ${testfile}.S
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set binfile ${objdir}/${subdir}/${testfile}
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set additional_flags "-Wa,-g"
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug $additional_flags]] != "" } {
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untested i386-disp-step.exp
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return -1
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}
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# Get things started.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_test "set displaced-stepping on" ""
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gdb_test "show displaced-stepping" ".* displaced stepping .* is on.*"
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if ![runto_main] then {
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fail "Can't run to main"
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return 0
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}
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##########################################
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# Test call/ret.
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gdb_test "break test_call" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_call"
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gdb_test "break test_call_end" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_call_end"
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gdb_test "break test_ret" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_ret"
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gdb_test "break test_ret_end" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_ret_end"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_call ().*" \
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"continue to test_call"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_call_end ().*" \
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"continue to test_call_end"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_ret ().*" \
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"continue to test_ret"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_ret_end ().*" \
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"continue to test_ret_end"
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##########################################
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# Absolute jump with leading prefixes.
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# These don't occur in normal code, but gdb should still DTRT.
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gdb_test "break test_prefixed_abs_jump" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_prefixed_abs_jump"
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gdb_test "break test_prefixed_abs_jump_end" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_prefixed_abs_jump_end"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_prefixed_abs_jump ().*" \
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"continue to test_prefixed_abs_jump"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_prefixed_abs_jump_end ().*" \
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"continue to test_prefixed_abs_jump_end"
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##########################################
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# Test syscall.
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gdb_test "break test_syscall" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_syscall"
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gdb_test "break test_syscall_end" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_syscall_end"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_syscall ().*" \
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"continue to test_syscall"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_syscall_end ().*" \
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"continue to test_syscall_end"
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##########################################
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# Test prefixed syscall.
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# These don't occur in normal code, but gdb should still DTRT.
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gdb_test "break test_prefixed_syscall" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_prefixed_syscall"
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gdb_test "break test_prefixed_syscall_end" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_prefixed_syscall_end"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_prefixed_syscall ().*" \
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"continue to test_prefixed_syscall"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_prefixed_syscall_end ().*" \
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"continue to test_prefixed_syscall_end"
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##########################################
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# int3 (with prefixes)
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# These don't occur in normal code, but gdb should still DTRT.
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gdb_test "break test_int3" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_int3"
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gdb_test "break test_int3_end" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"break test_int3_end"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_int3 ().*" \
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"continue to test_int3"
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gdb_test "continue" \
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"Continuing.*Breakpoint.*, test_int3_end ().*" \
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"continue to test_int3_end"
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##########################################
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# Done, run program to exit.
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gdb_continue_to_end "i386-disp-step"
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