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| author |   Alan Modra <amodra@gmail.com> | 2013-12-04 06:44:06 -0600 |
|---|---|---|
| committer |   Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2013-12-04 07:41:37 -0600 |
| commit | 7ec07d9a7b501f1b7d740fda02ba5f39d6d684e5 (patch) | |
| tree | 8af2d6588a7c4d7eea36a213f44f3b5823b63f78 /string/mempcpy.c | |
| parent | PowerPC64: Fix incorrect CFI in *context routines (diff) | |
| download | glibc-7ec07d9a7b501f1b7d740fda02ba5f39d6d684e5.tar.xz glibc-7ec07d9a7b501f1b7d740fda02ba5f39d6d684e5.zip | |
PowerPC64: Report overflow on @h and @ha relocations
This patch updates glibc in accordance with the binutils patch checked in here:
https://sourceware.org/ml/binutils/2013-10/msg00372.html
This changes the various R_PPC64_..._HI and _HA relocations to report
32-bit overflows. The motivation is that existing uses of @h / @ha
are to build up 32-bit offsets (for the "medium model" TOC access
that GCC now defaults to), and we'd really like to see failures at
link / load time rather than silent truncations.
For those rare cases where a modifier is needed to build up a 64-bit
constant, new relocations _HIGH / _HIGHA are supported.
The patch also fixes a bug in overflow checking for the R_PPC64_ADDR30
and R_PPC64_ADDR32 relocations.
Diffstat (limited to 'string/mempcpy.c')
0 files changed, 0 insertions, 0 deletions