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Bug 402480 Do not use %esp in clobber list.

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This is the same fix as for amd64-linux, but now for x86-linux.
This commit is contained in:
Mark Wielaard 2019-01-11 20:00:17 +01:00
parent 2c1f016e63
commit c512949082
1 changed files with 3 additions and 1 deletions
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4
none/tests/x86-linux/bug345887.c
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@ -12,12 +12,14 @@ static void inner(void)
"movl $0x105, %%esi\n"
"movl $0x106, %%edi\n"
// not %ebp as mdb is then not able to reconstruct stack trace
// clobbering %esp is really bad, but that is kind of the point
// we don't add it to the clobber list since gcc9 warns about that
"movl $0x108, %%esp\n"
"movl $0x1234, (%%eax)\n" // should cause SEGV here
"ud2" // should never get here
: // no output registers
: // no input registers
: "memory", "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi", "%esp");
: "memory", "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi");
}
__attribute__((noinline))