From: stratakis <cstratak@redhat.com>
Date: Sun, 19 Oct 2025 14:23:49 +0000 (+0200)
Subject: gh-101525: [BOLT] Add GCC's LTO-generated function clones, with computed gotos, to... 
X-Git-Tag: v3.15.0a2~393
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bad8d6de37c67b6f8ead5682cadb43d5e3f75f5a;p=thirdparty%2FPython%2Fcpython.git

gh-101525: [BOLT] Add GCC's LTO-generated function clones, with computed gotos, to BOLT skip list (gh-139840)
---

diff --git a/configure b/configure
index 3ea9c1044316..95e231f406a9 100755
--- a/configure
+++ b/configure
@@ -9396,7 +9396,7 @@ fi
 printf %s "checking BOLT_COMMON_FLAGS... " >&6; }
 if test -z "${BOLT_COMMON_FLAGS}"
 then
-  BOLT_COMMON_FLAGS=" -update-debug-sections -skip-funcs=_PyEval_EvalFrameDefault,sre_ucs1_match/1,sre_ucs2_match/1,sre_ucs4_match/1 "
+  BOLT_COMMON_FLAGS=" -update-debug-sections -skip-funcs=_PyEval_EvalFrameDefault,sre_ucs1_match/1,sre_ucs2_match/1,sre_ucs4_match/1,sre_ucs1_match.lto_priv.0/1,sre_ucs2_match.lto_priv.0/1,sre_ucs4_match.lto_priv.0/1 "
 
 fi
 
diff --git a/configure.ac b/configure.ac
index 8c920da19971..65c375796337 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2162,7 +2162,8 @@ then
       dnl At least LLVM 19.x doesn't support computed gotos in PIC compiled code.
       dnl Exclude functions containing computed gotos.
       dnl TODO this may be fixed in LLVM 20.x via https://github.com/llvm/llvm-project/pull/120267.
-      [-skip-funcs=_PyEval_EvalFrameDefault,sre_ucs1_match/1,sre_ucs2_match/1,sre_ucs4_match/1]
+      dnl GCC's LTO creates .lto_priv.0 clones of these functions.
+      [-skip-funcs=_PyEval_EvalFrameDefault,sre_ucs1_match/1,sre_ucs2_match/1,sre_ucs4_match/1,sre_ucs1_match.lto_priv.0/1,sre_ucs2_match.lto_priv.0/1,sre_ucs4_match.lto_priv.0/1]
     ")]
   )
 fi