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| author | Andrew Hsieh <andrewhsieh@google.com> | 2012-10-31 21:02:46 -0700 |
|---|---|---|
| committer | Andrew Hsieh <andrewhsieh@google.com> | 2012-11-01 15:47:39 -0700 |
| commit | 56ee0e6d36e35bbd4a1cda777359dcb7eaadb232 (patch) | |
| tree | a9d6d744a3f8059b59d1b13d55779ea25ac8789d /gcc-4.7/gcc/config/i386/i386.opt | |
| parent | efb5994e8cb17f9b2347baff9d731af0338e5d5e (diff) | |
| download | toolchain_gcc-56ee0e6d36e35bbd4a1cda777359dcb7eaadb232.tar.gz toolchain_gcc-56ee0e6d36e35bbd4a1cda777359dcb7eaadb232.tar.bz2 toolchain_gcc-56ee0e6d36e35bbd4a1cda777359dcb7eaadb232.zip | |
Add -mstack-protector-guard= to x86 compilers
To choose between "global" (default) and "tls" (new)
for -fstack-protector, -fstack-protector-all, and
-fstack-protector-strong (GCC 4.6+).
Note that this alone doesn't enable any -fstack-protector*
For NDK: The default "global" generates code backward
compatible with older bionic
For AOSP: build may add "-mstack-protector-guard=tls" to
build platform code with new bionic (*1)
Related CL:
https://android-review.googlesource.com/#/c/45416 (*1)
https://android-review.googlesource.com/#/c/45784
Change-Id: Iedf5b7ae5148572db2e35f0add93bc3d13511304
Diffstat (limited to 'gcc-4.7/gcc/config/i386/i386.opt')
| -rw-r--r-- | gcc-4.7/gcc/config/i386/i386.opt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc-4.7/gcc/config/i386/i386.opt b/gcc-4.7/gcc/config/i386/i386.opt index 4008fd0fe..492490f14 100644 --- a/gcc-4.7/gcc/config/i386/i386.opt +++ b/gcc-4.7/gcc/config/i386/i386.opt @@ -581,3 +581,18 @@ Split 32-byte AVX unaligned load mavx256-split-unaligned-store Target Report Mask(AVX256_SPLIT_UNALIGNED_STORE) Save Split 32-byte AVX unaligned store + +mstack-protector-guard= +Target RejectNegative Joined Enum(stack_protector_guard) Var(ix86_stack_protector_guard) Init(SSP_TLS) +Use given stack-protector guard + +Enum +Name(stack_protector_guard) Type(enum stack_protector_guard) +Known stack protector guard (for use with the -mstack-protector-guard= option): + +EnumValue +Enum(stack_protector_guard) String(tls) Value(SSP_TLS) + +EnumValue +Enum(stack_protector_guard) String(global) Value(SSP_GLOBAL) + |