| 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<Paste> |
| |
| Upstream-Status: Submitted [https://chromium-review.googlesource.com/c/linux-syscall-support/+/1390160] |
| Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| |
| --- a/src/third_party/lss/linux_syscall_support.h |
| +++ b/src/third_party/lss/linux_syscall_support.h |
| @@ -1966,7 +1966,7 @@ struct kernel_statfs { |
| __asm__ volatile(LSS_ENTRYPOINT \ |
| : "=a" (__res) \ |
| : "0" (__NR_##name) \ |
| - : "esp", "memory"); \ |
| + : "memory"); \ |
| LSS_RETURN(type,__res); \ |
| } |
| #undef _syscall1 |
| @@ -2407,7 +2407,7 @@ 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); |
| } |