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| author | Antoine Tremblay <antoine.tremblay@ericsson.com> | 2015-12-18 11:33:59 -0500 |
|---|---|---|
| committer | Antoine Tremblay <antoine.tremblay@ericsson.com> | 2015-12-18 11:39:02 -0500 |
| commit | d0e59a68884ad3a346ff0f6f763636c7245e4cb3 (patch) | |
| tree | fff48f87fd5a2933f0acb4af7d80274ac4e06cc3 /gdb/regcache.h | |
| parent | cba7e83fda349cbf423fab274f5b8677d8148947 (diff) | |
Refactor arm_software_single_step to use regcache
This patch is in preparation for software single step support on ARM in
GDBServer. It refactors arm_*_software_single_step and sub-functions to
use regcache instead of frame to access registers so that the code can be
shared more easily between GDB and GDBServer.
Note also that since the intention is at some point to get rid of frame
completely in that function, memory reads have also been replaced by
read_memory_unsigned_integer rather than get_frame_memory_unsigned.
No regressions, tested on ubuntu 14.04 ARMv7 and x86.
With gdbserver-{native,extended} / { -marm -mthumb }
gdb/ChangeLog:
* arm-linux-tdep.c (arm_linux_sigreturn_next_pc_offset): New function.
(arm_linux_sigreturn_next_pc): Likewise.
(arm_linux_syscall_next_pc): Use regcache instead of frame.
(arm_linux_software_single_step): Likewise.
* arm-tdep.c (arm_is_thumb): New function.
(shifted_reg_va): Use regcache instead of frame.
(thumb_get_next_pc_raw): Likewise.
(arm_get_next_pc_raw): Likewise.
(arm_get_next_pc): Likewise.
(thumb_deal_with_atomic_sequence_raw): Likewise.
(arm_deal_with_atomic_sequence_raw): Likewise.
(arm_deal_with_atomic_sequence): Likewise.
(arm_software_single_step): Likewise.
* arm-tdep.h (struct gdbarch_tdep): Use regcache for syscall_next_pc.
(arm_get_next_pc): Use regcache.
(arm_deal_with_atomic_sequence): Likewise.
(arm_is_thumb): New declaration.
* regcache.c (regcache_raw_get_unsigned): New function.
* regcache.h (regcache_raw_get_unsigned): New function declaration.
Diffstat (limited to 'gdb/regcache.h')
| -rw-r--r-- | gdb/regcache.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gdb/regcache.h b/gdb/regcache.h index a9fb44bf8a..c9d9a7df0f 100644 --- a/gdb/regcache.h +++ b/gdb/regcache.h @@ -81,6 +81,10 @@ extern enum register_status extern enum register_status regcache_raw_read_unsigned (struct regcache *regcache, int regnum, ULONGEST *val); + +ULONGEST regcache_raw_get_unsigned (struct regcache *regcache, + int regnum); + extern void regcache_raw_write_signed (struct regcache *regcache, int regnum, LONGEST val); extern void regcache_raw_write_unsigned (struct regcache *regcache, |