svn commit: r364784 - head/lib/libgcc_eh

[Dimitry Andric]

Author: dim
Date: Tue Aug 25 20:07:11 2020
New Revision: 364784
URL: https://svnweb.freebsd.org/changeset/base/364784

Log:
  After r364423, which ensures the callbacks that dl_iterate_phdr(3)
  performs are protected by an exclusive lock, even for statically linked
  programs, it is safe to re-enable libunwind's FrameHeaderCache, which I
  temporarily disabled in r364263.
  
  Meanwhile upstream has also used the _LIBUNWIND_USE_FRAME_HEADER_CACHE
  for this purpose, so the only thing needed is to add this as a
  compile-time command line flag.
  
  While here, reformat the CFLAGS lines a little bit.
  
  MFC after:	6 weeks
  X-MFC-With:	r364284, r364423

Modified:
  head/lib/libgcc_eh/Makefile.inc

Modified: head/lib/libgcc_eh/Makefile.inc
==============================================================================
--- head/lib/libgcc_eh/Makefile.inc	Tue Aug 25 20:04:35 2020	(r364783)
+++ head/lib/libgcc_eh/Makefile.inc	Tue Aug 25 20:07:11 2020	(r364784)
@@ -25,7 +25,10 @@ CFLAGS.${file}+=	-fno-exceptions -funwind-tables
 CXXFLAGS.${file}+=	-fno-exceptions -funwind-tables
 .endfor
 
-CFLAGS+=	-I${UNWINDINCDIR} -I${.CURDIR} -D_LIBUNWIND_IS_NATIVE_ONLY
+CFLAGS+=	-I${UNWINDINCDIR}
+CFLAGS+=	-I${.CURDIR}
+CFLAGS+=	-D_LIBUNWIND_IS_NATIVE_ONLY
+CFLAGS+=	-D_LIBUNWIND_USE_FRAME_HEADER_CACHE
 CXXFLAGS+=	-fno-rtti
 CXXSTD?=	c++11
 STATIC_CXXFLAGS+= -fvisibility=hidden -fPIC