diff options
Diffstat (limited to 'bfd/elf32-arm.c')
| -rw-r--r-- | bfd/elf32-arm.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c index 3ebd1f3..5801fe9 100644 --- a/bfd/elf32-arm.c +++ b/bfd/elf32-arm.c @@ -14238,12 +14238,16 @@ elf32_arm_finish_dynamic_symbol (bfd * output_bfd, if (!h->def_regular) { /* Mark the symbol as undefined, rather than as defined in - the .plt section. Leave the value alone. */ + the .plt section. */ sym->st_shndx = SHN_UNDEF; - /* If the symbol is weak, we do need to clear the value. + /* If the symbol is weak we need to clear the value. Otherwise, the PLT entry would provide a definition for the symbol even if the symbol wasn't defined anywhere, - and so the symbol would never be NULL. */ + and so the symbol would never be NULL. Leave the value if + there were any relocations where pointer equality matters + (this is a clue for the dynamic linker, to make function + pointer comparisons work between an application and shared + library). */ if (!h->ref_regular_nonweak || !h->pointer_equality_needed) sym->st_value = 0; } |