https://sourceware.org/bugzilla/show_bug.cgi?id=34038
Bug ID: 34038
Summary: [PATCH] ELF object files containing an STT_GNU_IFUNC
symbol cause seg-faults on targets that don't support
dynamic linking
Product: binutils
Version: 2.47 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: joel at airwebreathe dot org.uk
Target Milestone: ---
Created attachment 16678
--> https://sourceware.org/bugzilla/attachment.cgi?id=16678&action=edit
bfd: fix null pointer dereference in elf_link_output_extsym for IFUNC symbols
When linking an ELF object file containing an STT_GNU_IFUNC symbol,
elf_link_output_extsym() unconditionally calls the backend's
elf_backend_finish_dynamic_symbol callback. On targets that do not support
dynamic linking (and therefore do not define this callback), the function
pointer is NULL, causing a segmentation fault.
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