From ca3a382ea3aa9c9ccb57060afae47c7f702727ac Mon Sep 17 00:00:00 2001 From: Wilco Dijkstra Date: Thu, 14 Sep 2017 12:47:35 +0100 Subject: 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. --- csu/Makefile | 3 +++ 1 file changed, 3 insertions(+) (limited to 'csu') diff --git a/csu/Makefile b/csu/Makefile index 88646b6e8f..490d0b0f3b 100644 --- a/csu/Makefile +++ b/csu/Makefile @@ -82,6 +82,9 @@ extra-objs += $(crtstuff:=.o) extra-objs += abi-note.o init.o asm-CPPFLAGS += -I$(objpfx). +# Enable unwinding so backtrace unwinds to __libc_start_main +CFLAGS-libc-start.c += -funwind-tables + include ../Rules # Make these in the lib pass so they're available in time to link things with. -- cgit v1.2.3