6 Commits

Author	SHA1	Message	Date
Fangrui Song	7c74ce3c68	[ELF] --wrap: don't clear sym->isUsedInRegularObj if real->isUsedInRegularObj; set wrap's initial binding to sym's ... Fix PR49897: if `__real_foo` has the isUsedInRegularObj bit set, we need to retain `foo` in .symtab, even if `foo` is undefined. The new behavior will match GNU ld. Before the patch, we produced an R_X86_64_JUMP_SLOT relocation referencing the index 0 undefined symbol, which would be erroed by glibc (see f96ff3c0f8). While here, fix another bug: if `__wrap_foo` does not exist, its initial binding should be `foo`'s.	2021-04-17 00:29:51 -07:00
Fangrui Song	e281376e99	[ELF] --wrap: set isUsedInRegularObj of __wrap_ only if it is defined ... Fixes PR46169	2020-08-01 18:19:14 -07:00
Fangrui Song	a6ae333a0c	[ELF] --wrap: don't error `undefined reference to __real_foo` (--no-allow-shlib-undefined) if foo is a wrapped definition ... This is a regression after D51283. Also, export `foo` if `__real_foo` is referenced by a shared object.	2020-06-01 23:00:51 -07:00
Fangrui Song	4672e52e22	[llvm-readobj] llvm-readobj --elf-output-style=GNU => llvm-readelf ... While updating the test, change -l -S to -S -l as the output of -S goes before -l. llvm-svn: 359653	2019-05-01 06:02:16 +00:00
Fangrui Song	b159906a9a	[test] Change llvm-readobj -long-option to --long-option or well-known short options. NFC ... Also change some options that have different semantics (cause confusion) in llvm-readelf mode: -s => -S -t => --symbols -sd => --section-data llvm-svn: 359651	2019-05-01 05:49:01 +00:00
Rafael Espindola	cf00d4374e	Fix PR33635. ... This is a semantic revert of r306036. We have to change the names, otherwise dynamic relocations will point to the wrong name. llvm-svn: 307110	2017-07-05 00:43:18 +00:00