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| author | Caroline Tice <cmtice@google.com> | 2018-01-08 10:25:12 -0800 |
|---|---|---|
| committer | Caroline Tice <cmtice@google.com> | 2018-01-08 10:25:12 -0800 |
| commit | deec799746e92ab0487eca489499ade08a2610bf (patch) | |
| tree | 9a2c42ca86130fa98e61c5d7bfb7e890f501a066 /gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c | |
| parent | dca601e5d2b032ac5cca1df90ac56077ccf5d665 (diff) | |
| download | toolchain_gcc-deec799746e92ab0487eca489499ade08a2610bf.tar.gz toolchain_gcc-deec799746e92ab0487eca489499ade08a2610bf.tar.bz2 toolchain_gcc-deec799746e92ab0487eca489499ade08a2610bf.zip | |
[GCC] Commit retpoline patch code, for fixing security issues.
This applies the Intel GCC code patches, to allow compiling
with appropriate flags for mitigating the indirect branch variant of
the speculative execution security flaw.
Bug: None
Test: This is already in place in ChromeOS and has been tested on
the ChromeOS kernels.
Change-Id: Ideffb433b697f1fe7e4ca2c1eaa968160abfcc8b
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c new file mode 100644 index 000000000..88c87c10d --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ + +typedef void (*dispatch_t)(long offset); + +dispatch_t dispatch; + +extern void male_indirect_jump (long) + __attribute__ ((indirect_branch("thunk"))); + +void +male_indirect_jump (long offset) +{ + dispatch(offset); +} + +/* { dg-final { scan-assembler "(push|mov)(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ +/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ +/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ +/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ +/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ +/* { dg-final { scan-assembler {\tlfence} } } */ |