Hi Maintainers, The attach patch contains the following for aarch64 backend to enable gprof support.
1. Changes to "aarch64_return_addr" to get return address from a stack frame.
2. Defines macros associated with generating code for profiling.
gcc/ChangeLog
---------------------
2013-05-09 Venkataramanan Kumar <venkataramanan.ku...@linaro.org>
* config/aarch64/aarch64.h (MCOUNT_NAME): Define.
(NO_PROFILE_COUNTERS): Likewise.
(PROFILE_HOOK): Likewise.
(FUNCTION_PROFILER): Likewise.
* config/aarch64/aarch64.c (aarch64_return_addr): Handle
returning address from a frame.
(aarch64_function_profiler): Remove.
(aarch64_frame_pointer_required): Enable frame pointer when profiling.
gcc/testsuite/ChangeLog
-----------------------------------
2013-05-09 Venkataramanan Kumar <venkataramanan.ku...@linaro.org>
* lib/target-supports.exp (check_profiling_available): Enable
aarch64*-linux-*
Testing:
-----------
gcc regression tests for aarch64-none-elf passed.
gcc regression tests for aarch64-linux-none-gnu is underway.
With a small change in glibc, gcc now emits gmon.out when compiled
with -pg and run on openembedded/V8 model.
regards,
Venkat.
gcc.profile.diff
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