From 5c63eb5d56abd4e5232add4727247965a863d851 Mon Sep 17 00:00:00 2001
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From: Khem Raj <raj.khem@gmail.com>
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Date: Sun, 15 Dec 2019 14:02:45 -0800
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Subject: [PATCH] Do not add stack pointer to clobber list
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It was being ignored until now when gcc 9.0 became capable
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of flagging these silent ignore via [1].
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We weren't actually clobbering the stack pointers here
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so it should not cause change in behavior.
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[1] https://gcc.gnu.org/PR52813
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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---
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linux_syscall_support.h | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/linux_syscall_support.h b/linux_syscall_support.h
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index 9276f56..6e73309 100644
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--- a/linux_syscall_support.h
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+++ b/linux_syscall_support.h
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@@ -1955,7 +1955,7 @@ struct kernel_statfs {
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LSS_ENTRYPOINT \
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"pop %%ebx" \
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args \
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- : "esp", "memory"); \
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+ : "memory"); \
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LSS_RETURN(type,__res)
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#undef _syscall0
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#define _syscall0(type,name) \
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@@ -2012,7 +2012,7 @@ struct kernel_statfs {
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: "i" (__NR_##name), "ri" ((long)(arg1)), \
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"c" ((long)(arg2)), "d" ((long)(arg3)), \
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"S" ((long)(arg4)), "D" ((long)(arg5)) \
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- : "esp", "memory"); \
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+ : "memory"); \
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LSS_RETURN(type,__res); \
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}
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#undef _syscall6
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@@ -2034,7 +2034,7 @@ struct kernel_statfs {
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: "i" (__NR_##name), "0" ((long)(&__s)), \
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"c" ((long)(arg2)), "d" ((long)(arg3)), \
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"S" ((long)(arg4)), "D" ((long)(arg5)) \
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- : "esp", "memory"); \
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+ : "memory"); \
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LSS_RETURN(type,__res); \
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}
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LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
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@@ -2120,7 +2120,7 @@ struct kernel_statfs {
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: "0"(-EINVAL), "i"(__NR_clone),
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"m"(fn), "m"(child_stack), "m"(flags), "m"(arg),
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"m"(parent_tidptr), "m"(newtls), "m"(child_tidptr)
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- : "esp", "memory", "ecx", "edx", "esi", "edi");
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+ : "memory", "ecx", "edx", "esi", "edi");
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LSS_RETURN(int, __res);
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}
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--
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2.24.1
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