Commit Graph

2 Commits

Author SHA1 Message Date
H.J. Lu
7137d682eb ifuncmain6pie: Remove the circular IFUNC dependency [BZ #20019]
On x86, ifuncmain6pie failed with:

[hjl@gnu-cfl-2 build-i686-linux]$ ./elf/ifuncmain6pie --direct
./elf/ifuncmain6pie: IFUNC symbol 'foo' referenced in '/export/build/gnu/tools-build/glibc-32bit/build-i686-linux/elf/ifuncmod6.so' is defined in the executable and creates an unsatisfiable circular dependency.
[hjl@gnu-cfl-2 build-i686-linux]$ readelf -rW elf/ifuncmod6.so | grep foo
00003ff4  00000706 R_386_GLOB_DAT         0000400c   foo_ptr
00003ff8  00000406 R_386_GLOB_DAT         00000000   foo
0000400c  00000401 R_386_32               00000000   foo
[hjl@gnu-cfl-2 build-i686-linux]$

Remove non-JUMP_SLOT relocations against foo in ifuncmod6.so, which
trigger the circular IFUNC dependency, and build ifuncmain6pie with
-Wl,-z,lazy.
2021-01-13 11:50:08 -08:00
H.J. Lu
3c30afc862 Add more IFUNC tests.
Mostly tests around not-exported IFUNC functions, IFUNC in statically
linked binaries and PIEs, etc.
2009-06-22 15:07:40 -07:00