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Code Issues Releases Activity

clang: allow ifunc resolvers to accept arguments

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Previously Clang required ifunc resolution functions to take no
arguments, presumably because GCC documented ifunc resolvers as taking
no arguments.  However, GCC accepts resolvers accepting arguments, and
our rtld passes CPU ID information (cpuid, hwcap, etc.) to ifunc
resolvers.  Just remove the check from the in-tree compiler for our in-
tree compiler; a different (per-OS) approach may be required upstream.

Reported by:	mjg
Approved by:	re (rgrimes)
MFC after:	1 week
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Ed Maste 2018-09-29 20:01:23 +00:00
parent 5f11ee2075
commit ea28e71e86
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=339019
2 changed files with 1 additions and 3 deletions
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2
contrib/llvm/tools/clang/lib/CodeGen/CodeGenModule.cpp
View File

@ -321,8 +321,6 @@ void CodeGenModule::checkAliases() {
assert(FTy);
if (!FTy->getReturnType()->isPointerTy())
Diags.Report(Location, diag::err_ifunc_resolver_return);
if (FTy->getNumParams())
Diags.Report(Location, diag::err_ifunc_resolver_params);
}
llvm::Constant *Aliasee = Alias->getIndirectSymbol();

2
lib/clang/freebsd_cc_version.h
View File

@ -1,3 +1,3 @@
/* $FreeBSD$ */
#define FREEBSD_CC_VERSION 1200015
#define FREEBSD_CC_VERSION 1200016