https://sourceware.org/bugzilla/show_bug.cgi?id=18628
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |2.26
Summary|gold testsuite failures |gold IFUNC testsuite
|with GCC 5 |failures with GCC 5
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
I opened PR 18663 to track:
FAIL: script_test_1
FAIL: script_test_11
The IFUNC test issue is
[hjl@gnu-6 pr18628]$ readelf -r ifuncmod1.so
Relocation section '.rela.dyn' at offset 0x390 contains 7 entries:
Offset Info Type Sym. Value Sym. Name +
Addend
000000001828 000100000006 R_X86_64_GLOB_DAT foo() foo + 0
000000001838 000200000006 R_X86_64_GLOB_DAT foo_hidden() foo_hidden + 0
000000001848 000300000006 R_X86_64_GLOB_DAT foo_protected() foo_protected + 0
000000001818 000400000006 R_X86_64_GLOB_DAT 0000000000001880 global + 0
000000001820 000600000006 R_X86_64_GLOB_DAT 0000000000000000 ret_foo + 0
000000001830 000800000006 R_X86_64_GLOB_DAT 0000000000000000 ret_foo_hidden +
0
000000001840 000a00000006 R_X86_64_GLOB_DAT 0000000000000000 ret_foo_protected
+ 0
Relocation section '.rela.plt' at offset 0x438 contains 3 entries:
Offset Info Type Sym. Value Sym. Name +
Addend
000000001868 000100000007 R_X86_64_JUMP_SLO foo() foo + 0
000000001870 000000000025 R_X86_64_IRELATIV 520
000000001878 000000000025 R_X86_64_IRELATIV 550
[hjl@gnu-6 pr18628]$ readelf -s ifuncmod1.so | grep global
4: 0000000000001880 4 OBJECT GLOBAL PROTECTED 12 global
10: 0000000000001880 4 OBJECT GLOBAL PROTECTED 12 global
[hjl@gnu-6 pr18628]$
GCC 5 will generate relocation for protected symbol:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248
It is undefined to access protected symbol in IFUNC selector function
inside a DSO.
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