diff options
author | Igor Tsimbalist <igor.v.tsimbalist@intel.com> | 2017-11-17 23:57:07 +0100 |
---|---|---|
committer | Igor Tsimbalist <itsimbal@gcc.gnu.org> | 2017-11-17 23:57:07 +0100 |
commit | cc03e55b5aced4f0e948f09d29f116ead8ded943 (patch) | |
tree | 0ff8632cc51a62f1347e564e5a2d05329e0aee43 /libitm/acinclude.m4 | |
parent | 7cac54fb0dffd050963e122e79f042f4c2f000c0 (diff) | |
download | gcc-cc03e55b5aced4f0e948f09d29f116ead8ded943.tar.gz |
Add extra field to gtm_jmpbuf on x86 only
Expand the gtm_jmpbuf structure by one word field to add
Intel CET support further. The code in sjlj.S already
allocates more space on the stack then gtm_jmpbuf needs.
Use this extra space to absorb the new field.
The structure is allocated on the stack in such a way
that eip/rsp field is overlapped with return address on
the stack. Locate the new field right before eip/rsp so
code that accesses buffer fields relative to address of
gtm_jmpbuf has its offsets unchanged.
* libitm/config/x86/target.h: Add new field (ssp).
* libitm/config/x86/sjlj.S: Change offsets.
From-SVN: r254907
Diffstat (limited to 'libitm/acinclude.m4')
0 files changed, 0 insertions, 0 deletions