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| author |   Andrey Ryabinin <aryabinin@virtuozzo.com> | 2019-05-06 13:45:26 +0300 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-06 11:12:09 -0700 |
| commit | f0996bc2978e02d2ea898101462b960f6119b18f (patch) | |
| tree | 4524e2d81acd588b253a572ecc800baa82e0bb04 /lib/ubsan.h | |
| parent | Linux 5.1 (diff) | |
| download | linux-dev-f0996bc2978e02d2ea898101462b960f6119b18f.tar.xz linux-dev-f0996bc2978e02d2ea898101462b960f6119b18f.zip | |
ubsan: Fix nasty -Wbuiltin-declaration-mismatch GCC-9 warnings
Building lib/ubsan.c with gcc-9 results in a ton of nasty warnings like
this one:
lib/ubsan.c warning: conflicting types for built-in function
‘__ubsan_handle_negate_overflow’; expected ‘void(void *, void *)’ [-Wbuiltin-declaration-mismatch]
The kernel's declarations of __ubsan_handle_*() often uses 'unsigned
long' types in parameters while GCC these parameters as 'void *' types,
hence the mismatch.
Fix this by using 'void *' to match GCC's declarations.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Fixes: c6d308534aef ("UBSAN: run-time undefined behavior sanity checker")
Cc: <stable@vger.kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/ubsan.h')
0 files changed, 0 insertions, 0 deletions