From d517836886eee72503aecc3e866fb7f08e6b0c49 Mon Sep 17 00:00:00 2001 From: Khem Raj Date: Sun, 23 Dec 2018 16:58:04 -0800 Subject: [PATCH] chromium: stack pointer clobber Do not add stack pointer to clobber list it was being ignored until gcc 9.0 became capable of flagging this silent ignoring via [1] [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52813 Upstream-Status: Submitted [https://chromium-review.googlesource.com/c/linux-syscall-support/+/1390160] Signed-off-by: Khem Raj --- chromium/third_party/lss/linux_syscall_support.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/chromium/third_party/lss/linux_syscall_support.h b/chromium/third_party/lss/linux_syscall_support.h index 5d9c2e8582f..e19e51dd304 100644 --- a/chromium/third_party/lss/linux_syscall_support.h +++ b/chromium/third_party/lss/linux_syscall_support.h @@ -1964,7 +1964,7 @@ struct kernel_statfs { __asm__ volatile(LSS_ENTRYPOINT \ : "=a" (__res) \ : "0" (__NR_##name) \ - : "esp", "memory"); \ + : "memory"); \ LSS_RETURN(type,__res); \ } #undef _syscall1 @@ -2012,7 +2012,7 @@ struct kernel_statfs { : "i" (__NR_##name), "ri" ((long)(arg1)), \ "c" ((long)(arg2)), "d" ((long)(arg3)), \ "S" ((long)(arg4)), "D" ((long)(arg5)) \ - : "esp", "memory"); \ + : "memory"); \ LSS_RETURN(type,__res); \ } #undef _syscall6 @@ -2034,7 +2034,7 @@ struct kernel_statfs { : "i" (__NR_##name), "0" ((long)(&__s)), \ "c" ((long)(arg2)), "d" ((long)(arg3)), \ "S" ((long)(arg4)), "D" ((long)(arg5)) \ - : "esp", "memory"); \ + : "memory"); \ LSS_RETURN(type,__res); \ } LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack, @@ -2120,7 +2120,7 @@ struct kernel_statfs { : "0"(-EINVAL), "i"(__NR_clone), "m"(fn), "m"(child_stack), "m"(flags), "m"(arg), "m"(parent_tidptr), "m"(newtls), "m"(child_tidptr) - : "esp", "memory", "ecx", "edx", "esi", "edi"); + : "memory", "ecx", "edx", "esi", "edi"); LSS_RETURN(int, __res); } @@ -2405,7 +2405,7 @@ struct kernel_statfs { "d"(LSS_SYSCALL_ARG(parent_tidptr)), "r"(LSS_SYSCALL_ARG(newtls)), "r"(LSS_SYSCALL_ARG(child_tidptr)) - : "rsp", "memory", "r8", "r10", "r11", "rcx"); + : "memory", "r8", "r10", "r11", "rcx"); } LSS_RETURN(int, __res); }