| commit | c7d2b33d39725e06a78c0010259a5b7188fff722 | |
| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Tue, 27 Mar 2018 17:18:51 +0000 (27 17:18 +0000) | ||
| committer | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Tue, 27 Mar 2018 17:18:51 +0000 (27 17:18 +0000) | ||
| tree | 74c73da032e30d770b72cef8e23b63c614e53b74 | treesnapshot (tar.gz zip) |
| parent | f5ab930c5dad884891f77b89e47068c69919f6a7 | commitdiff |
i386: Insert ENDBR to trampoline for -fcf-protection=branch -mibt
When -fcf-protection=branch -mibt are used, we need to insert ENDBR
to trampoline. TRAMPOLINE_SIZE is creased by 4 bytes to accommodate
4-byte ENDBR instruction.
gcc/
PR target/85044
* config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
-fcf-protection=branch -mibt.
* config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.
gcc/testsuite/
PR target/85044
* gcc.target/i386/pr85044.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@258897 138bc75d-0d04-0410-961f-82ee72b054a4
When -fcf-protection=branch -mibt are used, we need to insert ENDBR
to trampoline. TRAMPOLINE_SIZE is creased by 4 bytes to accommodate
4-byte ENDBR instruction.
gcc/
PR target/85044
* config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
-fcf-protection=branch -mibt.
* config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.
gcc/testsuite/
PR target/85044
* gcc.target/i386/pr85044.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@258897 138bc75d-0d04-0410-961f-82ee72b054a4