From: Stan Shebs <stanshebs@google.com>
Date: Wed, 27 Feb 2019 22:03:33 +0000 (-0800)
Subject: Remove .llvm_addrsig sections from crt.o files
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c4c787ff1b1f33defe1da576fa3f83321e5c1555;p=thirdparty%2Fglibc.git

Remove .llvm_addrsig sections from crt.o files
---

diff --git a/csu/Makefile b/csu/Makefile
index f3498960f89..7460bcb0cf1 100644
--- a/csu/Makefile
+++ b/csu/Makefile
@@ -106,7 +106,13 @@ include ../Rules
 subdir_lib: $(extra-objs:%=$(objpfx)%)
 
 define link-relocatable
-$(CC) -nostdlib -nostartfiles -r -o $@ $^
+$(CC) -nostdlib -nostartfiles -r -o $@.precopy $^
+# Remove a section generated by clang for safe ICF; when lld links and
+# retains relocs, the section is garbled and causes errors in later
+# links done with --icf=safe.  The removal can be unconditional as it
+# is a no-op for non-clang/lld.
+$(OBJCOPY) --remove-section=.llvm_addrsig $@.precopy $@
+rm $@.precopy
 endef
 
 ifndef start-installed-name-rule