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| author | Stafford Horne <shorne@gmail.com> | 2021-10-28 06:54:05 +0900 |
|---|---|---|
| committer | Stafford Horne <shorne@gmail.com> | 2021-10-29 05:31:38 +0900 |
| commit | 308531d148afa3fd77c0efc82a80b26300f9615a (patch) | |
| tree | 30d637161691dd33fee4ee2d2a0a7c3e2f87878f /gcc/tree-ssa-threadbackward.c | |
| parent | 6123b998b185572abac7d7224b34f03955bb91a2 (diff) | |
| download | gcc-308531d148afa3fd77c0efc82a80b26300f9615a.zip gcc-308531d148afa3fd77c0efc82a80b26300f9615a.tar.gz gcc-308531d148afa3fd77c0efc82a80b26300f9615a.tar.bz2 | |
or1k: Add return address argument to _mcount call
This fixes an issue in the glibc port I am working on where the build
fails due to the warning:
error: calling ‘__builtin_return_address’ with a nonzero argument is unsafe [-Werror=frame-address]
This is due to how the current implementation of _mcount in glibc uses
__builtin_return_address with a count argument of 1.
Fix that by passing the value of LR_REGNUM to the _mcount function,
effectivtly providing the value _mcount is after.
This is an ABI change, but I think it's OK because the glibc port for
or1k is not yet upstreamed. Also, I think just adding an argument
should not break anything anyway.
gcc/ChangeLog:
* config/or1k/or1k.h (PROFILE_HOOK): Add return address argument
to _mcount.
Diffstat (limited to 'gcc/tree-ssa-threadbackward.c')
0 files changed, 0 insertions, 0 deletions