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authorWilco Dijkstra <wdijkstr@arm.com>2017-09-14 12:47:35 +0100
committerWilco Dijkstra <wdijkstr@arm.com>2017-09-19 15:07:58 +0100
commitca3a382ea3aa9c9ccb57060afae47c7f702727ac (patch)
tree53dbe1397c04c1ee52a024bd4193e1119b625df7 /debug
parenteb375def3ddd2a1738ed6bc5ace98753f0f7e5e6 (diff)
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Enable unwind info in libc-start.c and backtrace.c
Add unwind info to __libc_start_main so that unwinding continues one
extra level to _start.  Similarly add unwind info to backtrace.
Given many targets require this, do this in a general way.

	* csu/Makefile: Add -funwind-tables to libc-start.c.
	* debug/Makefile: Add -funwind-tables to backtrace.c.
	* sysdeps/aarch64/Makefile: Remove CFLAGS-backtrace.c.
	* sysdeps/arm/Makefile: Likewise.
	* sysdeps/i386/Makefile: Likewise.
	* sysdeps/m68k/Makefile: Likewise.
	* sysdeps/mips/Makefile: Likewise.
	* sysdeps/nios2/Makefile: Likewise.
	* sysdeps/sh/Makefile: Likewise.
	* sysdeps/sparc/Makefile: Likewise.
Diffstat (limited to 'debug')
-rw-r--r--debug/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/debug/Makefile b/debug/Makefile
index 504bf875fe..a9ac779c58 100644
--- a/debug/Makefile
+++ b/debug/Makefile
@@ -63,7 +63,7 @@ elide-routines.o := stack_chk_fail_local
 CFLAGS-stack_chk_fail.c = $(no-stack-protector)
 CFLAGS-stack_chk_fail_local.c = $(no-stack-protector)
 
-CFLAGS-backtrace.c = -fno-omit-frame-pointer
+CFLAGS-backtrace.c = -fno-omit-frame-pointer -funwind-tables
 CFLAGS-sprintf_chk.c = $(libio-mtsafe)
 CFLAGS-snprintf_chk.c = $(libio-mtsafe)
 CFLAGS-vsprintf_chk.c = $(libio-mtsafe)