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| author | Igor Zamyatin <igor.zamyatin@intel.com> | 2015-07-09 06:50:12 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-07-09 06:50:12 -0700 |
| commit | 14c5cbabc2d11004ab223ae5eae761ddf83ef99e (patch) | |
| tree | ee8516f9bb7f2e9435d05641dfa415e795f7b65e /NEWS | |
| parent | 632b3db8e2ba1f454872f7ebe1335966f8161c43 (diff) | |
| download | glibc-14c5cbabc2d11004ab223ae5eae761ddf83ef99e.tar glibc-14c5cbabc2d11004ab223ae5eae761ddf83ef99e.tar.gz glibc-14c5cbabc2d11004ab223ae5eae761ddf83ef99e.tar.bz2 glibc-14c5cbabc2d11004ab223ae5eae761ddf83ef99e.zip | |
Preserve bound registers for pointer pass/return
We need to save/restore bound registers and add a BND prefix before
branches in _dl_runtime_profile so that bound registers for pointer
pass and return are preserved when LD_AUDIT is used.
[BZ #18134]
* sysdeps/i386/configure.ac: Set HAVE_MPX_SUPPORT.
* sysdeps/i386/configure: Regenerated.
* sysdeps/i386/dl-trampoline.S (PRESERVE_BND_REGS_PREFIX): New.
(_dl_runtime_profile): Save and restore Intel MPX return bound
registers when calling _dl_call_pltexit. Add
PRESERVE_BND_REGS_PREFIX before return.
* sysdeps/i386/link-defines.sym (LRV_BND0_OFFSET): New.
(LRV_BND1_OFFSET): Likewise.
* sysdeps/x86/bits/link.h (La_i86_retval): Add lrv_bnd0 and
lrv_bnd1.
* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Fix
typo in bndmov encoding.
* sysdeps/x86_64/dl-trampoline.h: Properly save and restore
Intel MPX bound registers. Add PRESERVE_BND_REGS_PREFIX before
branch instructions to preserve bounds.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 14 |
1 files changed, 7 insertions, 7 deletions
@@ -21,13 +21,13 @@ Version 2.22 18049, 18068, 18080, 18093, 18100, 18104, 18110, 18111, 18116, 18125, 18128, 18138, 18185, 18196, 18197, 18206, 18210, 18211, 18217, 18219, 18220, 18221, 18234, 18244, 18245, 18247, 18287, 18319, 18324, 18333, - 18346, 18371, 18383, 18397, 18400, 18409, 18410, 18412, 18418, 18422, - 18434, 18435, 18444, 18468, 18469, 18470, 18479, 18483, 18495, 18496, - 18497, 18498, 18502, 18507, 18508, 18512, 18513, 18519, 18520, 18522, - 18527, 18528, 18529, 18530, 18532, 18533, 18534, 18536, 18539, 18540, - 18542, 18544, 18545, 18546, 18547, 18549, 18553, 18557, 18558, 18569, - 18583, 18585, 18586, 18592, 18593, 18594, 18602, 18612, 18613, 18619, - 18633, 18641, 18643, 18648. + 18346, 18371, 18383, 18397, 18400, 18409, 18410, 18412, 18134, 18418, + 18422, 18434, 18435, 18444, 18468, 18469, 18470, 18479, 18483, 18495, + 18496, 18497, 18498, 18502, 18507, 18508, 18512, 18513, 18519, 18520, + 18522, 18527, 18528, 18529, 18530, 18532, 18533, 18534, 18536, 18539, + 18540, 18542, 18544, 18545, 18546, 18547, 18549, 18553, 18557, 18558, + 18569, 18583, 18585, 18586, 18592, 18593, 18594, 18602, 18612, 18613, + 18619, 18633, 18641, 18643, 18648. * Cache information can be queried via sysconf() function on s390 e.g. with _SC_LEVEL1_ICACHE_SIZE as argument. |