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| author |   Sergei Trofimovich <slyfox@gentoo.org> | 2017-12-05 22:19:47 +0000 |
|---|---|---|
| committer | Sergei Trofimovich <slyfox@gentoo.org> | 2017-12-06 22:15:25 +0000 |
| commit | b14c692fa08dc7bc53a81d32d36ddb1231769040 (patch) | |
| tree | e6863b1518d6a312880d9c6a511c754b3f75eed2 /eclass | |
| parent | dev-python/construct: new comaintainer. (diff) | |
| download | gentoo-b14c692fa08dc7bc53a81d32d36ddb1231769040.tar.gz gentoo-b14c692fa08dc7bc53a81d32d36ddb1231769040.tar.bz2 gentoo-b14c692fa08dc7bc53a81d32d36ddb1231769040.zip | |
sys-libs/glibc: disable stack protection by default on mips* targets
Otherwise dlopen() crashes (found on 'top' from 'procps' package).
Original backtrace from qemu-mipsn32 (fails the same way on native host):
```
Program received signal SIGSEGV, Segmentation fault.
0x408cb908 in _dlerror_run (operate=operate@entry=0x408cadf0 <dlopen_doit>, args=args@entry=0x407feb28) at dlerror.c:163
163 result->errcode = _dl_catch_error (&result->objname, &result->errstring,
(gdb) bt
#0 0x408cb908 in _dlerror_run (operate=operate@entry=0x408cadf0 <dlopen_doit>, args=args@entry=0x407feb28) at dlerror.c:163
#1 0x408caf4c in __dlopen (file=file@entry=0x10012d58 "libnuma.so", mode=mode@entry=1) at dlopen.c:87
#2 0x1000306c in before (me=0x407ff382 "/usr/mips64-unknown-linux-gnu/usr/bin/top") at top/top.c:3308
#3 0x10001a10 in main (dont_care_argc=<optimized out>, argv=0x407ff1a4) at top/top.c:5721
```
Reported-by: Matt Turner
Bug: https://bugs.gentoo.org/640130
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Diffstat (limited to 'eclass')
| -rw-r--r-- | eclass/toolchain-glibc.eclass | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/eclass/toolchain-glibc.eclass b/eclass/toolchain-glibc.eclass index e9cf01cf8c27..6580be2fb1e0 100644 --- a/eclass/toolchain-glibc.eclass +++ b/eclass/toolchain-glibc.eclass @@ -796,6 +796,11 @@ glibc_do_configure() { if version_is_at_least 2.25 ; then case ${CTARGET} in + mips*) + # dlopen() detects stack smash on mips n32 ABI. + # Cause is unknown: https://bugs.gentoo.org/640130 + myconf+=( --enable-stack-protector=no ) + ;; powerpc-*) # Currently gcc on powerpc32 generates invalid code for # __builtin_return_address(0) calls. Normally programs |