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Diffstat (limited to 'gdb/ChangeLog')
| -rw-r--r-- | gdb/ChangeLog | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 9c6f600..9c9e09b 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,68 @@ +2008-05-02 Jim Blandy <jimb@codesourcery.com> + Pedro Alves <pedro@codesourcery.com> + + Implement displaced stepping. + + * gdbarch.sh (max_insn_length): New 'variable'. + (displaced_step_copy, displaced_step_fixup) + (displaced_step_free_closure, displaced_step_location): New + functions. + (struct displaced_step_closure): Add forward declaration. + * gdbarch.c, gdbarch.h: Regenerated. + + * arch-utils.c: #include "objfiles.h". + (simple_displaced_step_copy_insn) + (simple_displaced_step_free_closure) + (displaced_step_at_entry_point): New functions. + * arch-utils.h (simple_displaced_step_copy_insn) + (simple_displaced_step_free_closure) + (displaced_step_at_entry_point): New prototypes. + + * i386-tdep.c (I386_MAX_INSN_LEN): Rename to... + (I386_MAX_MATCHED_INSN_LEN): ... this. + (i386_absolute_jmp_p, i386_absolute_call_p) + (i386_ret_p, i386_call_p, i386_breakpoint_p, i386_syscall_p) + (i386_displaced_step_fixup): New functions. + (struct i386_insn, i386_match_insn): Update. + (i386_gdbarch_init): Set gdbarch_max_insn_length. + * i386-tdep.h (I386_MAX_INSN_LEN): New. + (i386_displaced_step_fixup): New prototype. + * i386-linux-tdep.c (i386_linux_init_abi): Include "arch-utils.h". + Register gdbarch_displaced_step_copy, + gdbarch_displaced_step_fixup, gdbarch_displaced_step_free_closure, + and gdbarch_displaced_step_location functions. + + * infrun.c (debug_displaced): New variable. + (show_debug_displaced): New function. + (struct displaced_step_request): New struct. + (displaced_step_request_queue, displaced_step_ptid) + (displaced_step_gdbarch, displaced_step_closure) + (displaced_step_original, displaced_step_copy) + (displaced_step_saved_copy, can_use_displaced_stepping): New + variables. + (show_can_use_displaced_stepping, use_displaced_stepping) + (displaced_step_clear, cleanup_displaced_step_closure) + (displaced_step_dump_bytes, displaced_step_prepare) + (displaced_step_clear_cleanup, write_memory_ptid) + (displaced_step_fixup): New functions. + (resume): Call displaced_step_prepare. + (proceed): Call read_pc once, and remember the value. If using + displaced stepping, don't remove breakpoints. + (handle_inferior_event): Call displaced_step_fixup. Add some + debugging output. When we try to step over a breakpoint, but get + a signal to deliver to the thread instead, ensure the step-resume + breakpoint is actually inserted. If a thread hop is needed, and + displaced stepping is enabled, don't remove breakpoints. + (init_wait_for_inferior): Call displaced_step_clear. + (_initialize_infrun): Add "set debug displaced" command. Add + "maint set can-use-displaced-stepping" command. Clear + displaced_step_ptid. + * inferior.h (debug_displaced): Declare variable. + (displaced_step_dump_bytes): Declare function. + + * Makefile.in (arch-utils.o, i386-linux-tdep.o): Update + dependencies. + 2008-05-02 Daniel Jacobowitz <dan@codesourcery.com> * arm-tdep.c (arm_mode_strings, arm_fallback_mode_string) |