7 Commits

Author SHA1 Message Date
Daniel Kiss
3f40ad7ba8
Add ifunc support for Windows on AArch64. (#111962)
On Windows there is no platform support for ifunc but we could lower
them to global function pointers.
This also enables FMV for Windows with Clang and Compiler-rt.

Depends on #111961
2024-11-14 14:45:15 +01:00
Fangrui Song
7c1d9b15ee [test] %clang_cc1: remove redundant actions 2024-05-04 23:08:11 -07:00
Jon Roelofs
acf9aa3c22
[clang] Support __attribute__((ifunc(...))) on Darwin platforms
Unlike ELF targets, MachO does not support the same kind of dynamic symbol
resolution at load time.  Instead, the corresponding MachO feature resolves
symbols lazily on first call.

Reviewers:
JDevlieghere, dmpolukhin, ahmedbougacha, tahonermann, echristo, MaskRay, erichkeane

Reviewed By: MaskRay, echristo, ahmedbougacha

Pull Request: https://github.com/llvm/llvm-project/pull/73687
2023-12-14 14:52:35 -07:00
Dhruv Chawla
9306ef9750 [clang][alias|ifunc]: Add a diagnostic for mangled names
When an alias or ifunc attribute refers to a function name that is
mangled, a diagnostic is emitted to suggest the mangled name as a
replacement for the given function name for every matching name in the
current TU.

Fixes #59164

Differential Revision: https://reviews.llvm.org/D143803
2023-03-06 08:59:02 -08:00
Aaron Ballman
ed509fe296 Use functions with prototypes when appropriate; NFC
A significant number of our tests in C accidentally use functions
without prototypes. This patch converts the function signatures to have
a prototype for the situations where the test is not specific to K&R C
declarations. e.g.,

  void func();

becomes

  void func(void);

This is the tenth batch of tests being updated (there are a
significant number of other tests left to be updated).
2022-02-15 09:28:02 -05:00
Itay Bookstein
3b1fd19357 [CodeGen] Diagnose and reject non-function ifunc resolvers
Signed-off-by: Itay Bookstein <ibookstein@gmail.com>

Reviewed By: MaskRay, erichkeane

Differential Revision: https://reviews.llvm.org/D112868
2021-11-09 23:51:36 +02:00
Itay Bookstein
ce91540bee [clang][test][NFC] Move attr-ifunc.c test from Sema to CodeGen
Signed-off-by: Itay Bookstein <ibookstein@gmail.com>

Reviewed By: erichkeane

Differential Revision: https://reviews.llvm.org/D113431
2021-11-09 23:51:29 +02:00