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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.gz glibc-14c5cbabc2d11004ab223ae5eae761ddf83ef99e.tar.xz 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
diff --git a/NEWS b/NEWS index fffbb43dd0..dda1085d63 100644 --- a/NEWS +++ b/NEWS @@ -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. |