1 /* Some compiler optimizations may transform loops into memset/memmove 2 calls and without proper declaration it may generate PLT calls. */ 3 #if !defined __ASSEMBLER__ && IS_IN (libc) && defined SHARED 4 asm ("memmove = __GI_memmove"); 5 asm ("memset = __GI_memset"); 6 asm ("memcpy = __GI_memcpy"); 7 8 /* Some targets do not use __stack_chk_fail_local. In libc.so, 9 redirect __stack_chk_fail to a hidden reference 10 __stack_chk_fail_local, to avoid the PLT reference. 11 __stack_chk_fail itself is a global symbol, exported from libc.so, 12 and cannot be made hidden. */ 13 14 # if IS_IN (libc) && defined SHARED \ 15 && defined STACK_PROTECTOR_LEVEL && STACK_PROTECTOR_LEVEL > 0 16 asm (".hidden __stack_chk_fail_local\n" 17 "__stack_chk_fail = __stack_chk_fail_local"); 18 # endif 19 #endif 20