unwind fix for musl

On behalf of szabolcs.nagy@arm.com

2015-04-22  Gregor Richards  <gregor.richards@uwaterloo.ca>
	    Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* unwind-dw2-fde-dip.c (USE_PT_GNU_EH_FRAME): Define it on
	Linux if target provides dl_iterate_phdr.

Co-Authored-By: Szabolcs Nagy <szabolcs.nagy@arm.com>
From-SVN: r222328

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 862608f6380a47e290d457bd337b7e93b5aa95a4..0891353a5e535585a0fbfdf44ff71ba9d8afef1c 100644 (file)
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,9 @@
+2015-04-22  Gregor Richards  <gregor.richards@uwaterloo.ca>
+           Szabolcs Nagy  <szabolcs.nagy@arm.com>
+
+       * unwind-dw2-fde-dip.c (USE_PT_GNU_EH_FRAME): Define it on
+       Linux if target provides dl_iterate_phdr.
+
 2015-04-17  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR target/65612

diff --git a/libgcc/unwind-dw2-fde-dip.c b/libgcc/unwind-dw2-fde-dip.c
index e1e566b5d574a46119e5be42ba96534c7550e32c..137dced8d558b9f786d935c8e4ab73200fb6409d 100644 (file)
--- a/libgcc/unwind-dw2-fde-dip.c
+++ b/libgcc/unwind-dw2-fde-dip.c
@@ -57,6 +57,12 @@
 # define USE_PT_GNU_EH_FRAME
 #endif
 
+#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
+    && defined(TARGET_DL_ITERATE_PHDR) \
+    && defined(__linux__)
+# define USE_PT_GNU_EH_FRAME
+#endif
+
 #if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
     && defined(TARGET_DL_ITERATE_PHDR) \
     && (defined(__DragonFly__) || defined(__FreeBSD__))