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From 5c63eb5d56abd4e5232add4727247965a863d851 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sun, 15 Dec 2019 14:02:45 -0800
Subject: [PATCH] Do not add stack pointer to clobber list
It was being ignored until now when gcc 9.0 became capable
of flagging these silent ignore via [1].
We weren't actually clobbering the stack pointers here
so it should not cause change in behavior.
[1] https://gcc.gnu.org/PR52813
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
linux_syscall_support.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/linux_syscall_support.h b/linux_syscall_support.h
index 9276f56..6e73309 100644
--- a/linux_syscall_support.h
+++ b/linux_syscall_support.h
@@ -1955,7 +1955,7 @@ struct kernel_statfs {
LSS_ENTRYPOINT \
"pop %%ebx" \
args \
- : "esp", "memory"); \
+ : "memory"); \
LSS_RETURN(type,__res)
#undef _syscall0
#define _syscall0(type,name) \
@@ -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);
}
--
2.24.1
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