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ca3a382ea3
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.
50 lines
1.5 KiB
Makefile
50 lines
1.5 KiB
Makefile
# Copyright (C) 1993-2017 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library. If not, see
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# <http://www.gnu.org/licenses/>.
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# The mpn functions need this. All existing 68k ports use MIT syntax. If
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# a new port wants to use Motorola or Sony syntax, it can redefine this
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# variable.
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ifndef m68k-syntax-flag
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m68k-syntax-flag = -DMIT_SYNTAX
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endif
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asm-CPPFLAGS += $(m68k-syntax-flag)
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pic-ccflag = -fpic
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ifeq ($(subdir),csu)
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# Make sure gcrt1.o uses the large PIC model
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CFLAGS-gmon-start.c := -fPIC
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ifeq ($(build-pie-default),yes)
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# Override default PIE
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ASFLAGS-.o += -fno-pie
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endif
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endif
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ifeq ($(subdir),setjmp)
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# Make sure setjmp.c is compiled with a frame pointer
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CFLAGS-setjmp.c := -fno-omit-frame-pointer
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endif
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ifeq ($(subdir),elf)
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CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused
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endif
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ifeq ($(subdir),gmon)
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CFLAGS-mcount.c += -Wno-frame-address
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endif
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