Muhammad Wasif Ali WasifandClaude Opus 5.5 7d9a308044 fix(nid): reject ELF exports that patch to different symbols under one name ...

Two defined ELF exports that are renamed to the same name, such as foo
and foo_nid_disambig1, were both written as one name and the patcher
exited 0, leaving a lookup that can reach only one of them. The PE and
Mach-O back ends already reject this.

The ELF patcher now remembers the address (st_value and st_shndx) of
each patched export name and throws "duplicate patched export name"
only when the name comes from a symbol at a different address. Aliases
of one address are kept: the Linux libc defines __cxa_throw and
__cxa_throw_nid_no_patch_cut as aliases of __cxa_throw_nid_postfix, so
both become __cxa_throw, and any lookup of that name resolves to the
same code.

The Linux libc also exported __gxx_personality_v0 twice at different
addresses: the forwarding function in Personality.cpp and the
__gxx_personality_v0_nid_no_patch_cut alias of the guest personality.
Drop that alias, so the name keeps only the forwarding function, as
in the PE build.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-16 00:08:27 +05:00

..

include/nid

build(libs): keep import libraries stable so a source edit relinks one library

2026-10-13 22:43:05 -04:00

src

fix(nid): reject ELF exports that patch to different symbols under one name

2026-10-16 00:08:27 +05:00

tests

fix(nid): reject ELF exports that patch to different symbols under one name

2026-10-16 00:08:27 +05:00