diff options
| author | Fangrui Song <[email protected]> | 2020-11-06 21:46:11 +0100 |
|---|---|---|
| committer | Russell King <[email protected]> | 2020-11-12 14:53:19 +0000 |
| commit | 735e8d93dc2b107f7891a9c2b1c4cfbea1fcbbbc (patch) | |
| tree | d37af8ed305cebd6185990a3bc124cb31efa3e36 /lib/test_fortify/write_overflow-strcpy.c | |
| parent | fc2933c133744305236793025b00c2f7d258b687 (diff) | |
ARM: 9022/1: Change arch/arm/lib/mem*.S to use WEAK instead of .weak
Commit d6d51a96c7d6 ("ARM: 9014/2: Replace string mem* functions for
KASan") add .weak directives to memcpy/memmove/memset to avoid collision
with KASAN interceptors.
This does not work with LLVM's integrated assembler (the assembly snippet
`.weak memcpy ... .globl memcpy` produces a STB_GLOBAL memcpy while GNU as
produces a STB_WEAK memcpy). LLVM 12 (since https://reviews.llvm.org/D90108)
will error on such an overridden symbol binding.
Use the appropriate WEAK macro instead.
Link: https://github.com/ClangBuiltLinux/linux/issues/1190
--
Fixes: d6d51a96c7d6 ("ARM: 9014/2: Replace string mem* functions for KASan")
Reported-by: Nick Desaulniers <[email protected]>
Signed-off-by: Fangrui Song <[email protected]>
Reviewed-by: Nick Desaulniers <[email protected]>
Tested-by: Nick Desaulniers <[email protected]>
Signed-off-by: Russell King <[email protected]>
Diffstat (limited to 'lib/test_fortify/write_overflow-strcpy.c')
0 files changed, 0 insertions, 0 deletions