515bfc66ea
Probing of allocated stack space is now done when this option is passed. The purpose is to protect against the stack clash attack (see https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt). Review: Ulrich Weigand Differential Revision: https://reviews.llvm.org/D78717
14 lines
511 B
C
14 lines
511 B
C
// RUN: %clang -target s390x-linux-gnu -fstack-clash-protection -### %s 2>&1 | FileCheck %s -check-prefix=SystemZ
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// SystemZ: "-fstack-clash-protection"
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// RUN: %clang -target s390x-linux-gnu -fstack-clash-protection -S -emit-llvm -o %t.ll %s 2>&1 | FileCheck %s -check-prefix=SystemZ-warn
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// SystemZ-warn: warning: Unable to protect inline asm that clobbers stack pointer against stack clash
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int foo(int c) {
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int r;
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__asm__("ag %%r15, %0"
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:
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: "rm"(c)
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: "r15");
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return r;
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}
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