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| author | Alan Modra <amodra@gmail.com> | 2017-10-31 22:13:21 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-11-01 18:46:34 +1030 |
| commit | 3988aed54acce3c682a877b51b0e09cce1079e81 (patch) | |
| tree | f06e9392e2810d410cd007b7d8ee52fb75320c99 /ld | |
| parent | e48f0c8f1b9fdb195394dc7afea02ce55e4ba5e4 (diff) | |
| download | gdb-3988aed54acce3c682a877b51b0e09cce1079e81.zip gdb-3988aed54acce3c682a877b51b0e09cce1079e81.tar.gz gdb-3988aed54acce3c682a877b51b0e09cce1079e81.tar.bz2 | |
PR22374, PowerPC unnecessary PLT entries
We don't need a PLT entry when function pointer initialization in a
read/write section is the only reference to a given function symbol.
This patch prevents the unnecessary PLT entry, and ensures no dynamic
relocs are emitted when UNDEFWEAK_NO_DYNAMIC_RELOC says so.
bfd/
PR 22374
* elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Don't create a plt
entry when just a dynamic reloc can serve. Ensure no dynamic
relocations when UNDEFWEAK_NO_DYNAMIC_RELOC by setting non_got_ref.
Expand and move the non_got_ref comment.
* elf64-ppc.c (ppc64_elf_adjust_dynamic_symbol): Likewise.
ld/
* testsuite/ld-powerpc/ambiguousv2.d: Remove FIXME.
Diffstat (limited to 'ld')
| -rw-r--r-- | ld/ChangeLog | 4 | ||||
| -rw-r--r-- | ld/testsuite/ld-powerpc/ambiguousv2.d | 5 |
2 files changed, 4 insertions, 5 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog index 84bebb3..bdc98d6 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,5 +1,9 @@ 2017-11-01 Alan Modra <amodra@gmail.com> + * testsuite/ld-powerpc/ambiguousv2.d: Remove FIXME. + +2017-11-01 Alan Modra <amodra@gmail.com> + PR 22374 * testsuite/ld-elf/pr22374a.s, * testsuite/ld-elf/pr22374b.s, diff --git a/ld/testsuite/ld-powerpc/ambiguousv2.d b/ld/testsuite/ld-powerpc/ambiguousv2.d index fec3a2c..7afdfe1 100644 --- a/ld/testsuite/ld-powerpc/ambiguousv2.d +++ b/ld/testsuite/ld-powerpc/ambiguousv2.d @@ -8,16 +8,11 @@ # anything to mark it as ELFv1 or ELFv2. We should get a dynamic # reloc on the function address, not have a global entry stub, and # my_func should be undefined dynamic with value zero. -# FIXME someday: No need for a plt entry. Relocation section .* contains 1 entries: .* .* R_PPC64_ADDR64 .* my_func \+ 0 -Relocation section .* contains 1 entries: -.* -.* R_PPC64_JMP_SLOT .* my_func \+ 0 - Symbol table '\.dynsym' contains 5 entries: .* 0: .* |