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| author | Yao Qi <yao@codesourcery.com> | 2011-02-16 14:54:42 +0000 |
|---|---|---|
| committer | Yao Qi <yao@codesourcery.com> | 2011-02-16 14:54:42 +0000 |
| commit | a42244dbec4d58c5577a84215d92c85a6c067d1a (patch) | |
| tree | 26c29b1b46afb067d5cc8d0fd227585b706c73d3 | |
| parent | 3dfcbbd281d9c7f0a0f29a3aabf59e45a5142fd4 (diff) | |
| download | gdb-a42244dbec4d58c5577a84215d92c85a6c067d1a.zip gdb-a42244dbec4d58c5577a84215d92c85a6c067d1a.tar.gz gdb-a42244dbec4d58c5577a84215d92c85a6c067d1a.tar.bz2 | |
2011-02-16 Yao Qi <yao@qiyaows>
* infrun.c (get_displaced_step_closure_by_addr): New.
* inferior.h: Declare it.
* arm-tdep.c: (arm_pc_is_thumb): Call
get_displaced_step_closure_by_addr. Adjust MEMADDR if it
returns non-NULL.
| -rw-r--r-- | gdb/ChangeLog | 8 | ||||
| -rw-r--r-- | gdb/arm-tdep.c | 14 | ||||
| -rw-r--r-- | gdb/inferior.h | 2 | ||||
| -rw-r--r-- | gdb/infrun.c | 18 |
4 files changed, 42 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 6b92f5d..b81c0ba 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2011-02-16 Yao Qi <yao@qiyaows> + + * infrun.c (get_displaced_step_closure_by_addr): New. + * inferior.h: Declare it. + * arm-tdep.c: (arm_pc_is_thumb): Call + get_displaced_step_closure_by_addr. Adjust MEMADDR if it + returns non-NULL. + 2011-02-16 Pedro Alves <pedro@codesourcery.com> Jan Kratochvil <jan.kratochvil@redhat.com> diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c index 6a279d1..96061e3 100644 --- a/gdb/arm-tdep.c +++ b/gdb/arm-tdep.c @@ -369,6 +369,20 @@ arm_pc_is_thumb (struct gdbarch *gdbarch, CORE_ADDR memaddr) struct obj_section *sec; struct minimal_symbol *sym; char type; + struct displaced_step_closure* dsc + = get_displaced_step_closure_by_addr(memaddr); + + /* If checking the mode of displaced instruction in copy area, the mode + should be determined by instruction on the original address. */ + if (dsc) + { + if (debug_displaced) + fprintf_unfiltered (gdb_stdlog, + "displaced: check mode of %.8lx instead of %.8lx\n", + (unsigned long) dsc->insn_addr, + (unsigned long) memaddr); + memaddr = dsc->insn_addr; + } /* If bit 0 of the address is set, assume this is a Thumb address. */ if (IS_THUMB_ADDR (memaddr)) diff --git a/gdb/inferior.h b/gdb/inferior.h index 7cebcbf..381fd82 100644 --- a/gdb/inferior.h +++ b/gdb/inferior.h @@ -366,6 +366,8 @@ extern int debug_displaced; void displaced_step_dump_bytes (struct ui_file *file, const gdb_byte *buf, size_t len); +struct displaced_step_closure* +get_displaced_step_closure_by_addr (CORE_ADDR addr); /* Possible values for gdbarch_call_dummy_location. */ #define ON_STACK 1 diff --git a/gdb/infrun.c b/gdb/infrun.c index dd26af3..274082d 100644 --- a/gdb/infrun.c +++ b/gdb/infrun.c @@ -1078,6 +1078,24 @@ add_displaced_stepping_state (int pid) return state; } +/* If inferior is in displaced stepping, and ADDR equals to starting address + of copy area, return corresponding displaced_step_closure. Otherwise, + return NULL. */ + +struct displaced_step_closure* +get_displaced_step_closure_by_addr (CORE_ADDR addr) +{ + struct displaced_step_inferior_state *displaced + = get_displaced_stepping_state (ptid_get_pid (inferior_ptid)); + + /* If checking the mode of displaced instruction in copy area. */ + if (displaced && !ptid_equal (displaced->step_ptid, null_ptid) + && (displaced->step_copy == addr)) + return displaced->step_closure; + + return NULL; +} + /* Remove the displaced stepping state of process PID. */ static void |