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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.
210 lines
8.5 KiB
Makefile
210 lines
8.5 KiB
Makefile
# Copyright (C) 1998-2017 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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#
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# Sub-makefile for debug portion of the library.
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#
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subdir := debug
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include ../Makeconfig
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headers := execinfo.h
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# Note that ptsname_r_chk and getlogin_r are not here, but in
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# login/Makefile instead. If that subdir is omitted from the
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# build, its _FORTIFY_SOURCE support will be too.
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routines = backtrace backtracesyms backtracesymsfd noophooks \
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memcpy_chk memmove_chk mempcpy_chk memset_chk stpcpy_chk \
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strcat_chk strcpy_chk strncat_chk strncpy_chk stpncpy_chk \
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sprintf_chk vsprintf_chk snprintf_chk vsnprintf_chk \
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printf_chk fprintf_chk vprintf_chk vfprintf_chk \
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gets_chk chk_fail readonly-area fgets_chk fgets_u_chk \
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read_chk pread_chk pread64_chk recv_chk recvfrom_chk \
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readlink_chk readlinkat_chk getwd_chk getcwd_chk \
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realpath_chk fread_chk fread_u_chk \
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wctomb_chk wcscpy_chk wmemcpy_chk wmemmove_chk wmempcpy_chk \
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wcpcpy_chk wcsncpy_chk wcscat_chk wcsncat_chk wmemset_chk \
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wcpncpy_chk \
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swprintf_chk vswprintf_chk wprintf_chk fwprintf_chk \
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vwprintf_chk vfwprintf_chk fgetws_chk fgetws_u_chk \
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confstr_chk getgroups_chk ttyname_r_chk \
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gethostname_chk getdomainname_chk wcrtomb_chk mbsnrtowcs_chk \
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wcsnrtombs_chk mbsrtowcs_chk wcsrtombs_chk mbstowcs_chk \
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wcstombs_chk asprintf_chk vasprintf_chk dprintf_chk \
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vdprintf_chk obprintf_chk \
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longjmp_chk ____longjmp_chk \
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fdelt_chk poll_chk ppoll_chk \
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explicit_bzero_chk \
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stack_chk_fail fortify_fail \
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$(static-only-routines)
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static-only-routines := warning-nop stack_chk_fail_local
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# Don't add stack_chk_fail_local.o to libc.a since __stack_chk_fail_local
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# is an alias of __stack_chk_fail in stack_chk_fail.o.
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elide-routines.o := stack_chk_fail_local
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# Building the stack-protector failure routines with stack protection
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# makes no sense.
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CFLAGS-stack_chk_fail.c = $(no-stack-protector)
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CFLAGS-stack_chk_fail_local.c = $(no-stack-protector)
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CFLAGS-backtrace.c = -fno-omit-frame-pointer -funwind-tables
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CFLAGS-sprintf_chk.c = $(libio-mtsafe)
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CFLAGS-snprintf_chk.c = $(libio-mtsafe)
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CFLAGS-vsprintf_chk.c = $(libio-mtsafe)
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CFLAGS-vsnprintf_chk.c = $(libio-mtsafe)
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CFLAGS-asprintf_chk.c = $(libio-mtsafe)
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CFLAGS-vasprintf_chk.c = $(libio-mtsafe)
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CFLAGS-obprintf_chk.c = $(libio-mtsafe)
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CFLAGS-dprintf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-vdprintf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-printf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-fprintf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-vprintf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-vfprintf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-gets_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-fgets_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-fgets_u_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-fread_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-fread_u_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-swprintf_chk.c = $(libio-mtsafe)
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CFLAGS-vswprintf_chk.c = $(libio-mtsafe)
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CFLAGS-wprintf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-fwprintf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-vwprintf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-vfwprintf_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-fgetws_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-fgetws_u_chk.c = $(libio-mtsafe) -fexceptions
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CFLAGS-read_chk.c = -fexceptions -fasynchronous-unwind-tables
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CFLAGS-pread_chk.c = -fexceptions -fasynchronous-unwind-tables
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CFLAGS-pread64_chk.c = -fexceptions -fasynchronous-unwind-tables
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CFLAGS-recv_chk.c = -fexceptions -fasynchronous-unwind-tables
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CFLAGS-recvfrom_chk.c = -fexceptions -fasynchronous-unwind-tables
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# Need to make sure the settings here override what configure might have
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# set up for us, so keep the CFLAGS/CPPFLAGS split logical as the order is:
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# <user CFLAGS> <test CFLAGS> <user CPPFLAGS> <test CPPFLAGS>
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CFLAGS-tst-longjmp_chk.c = -fexceptions -fasynchronous-unwind-tables
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CPPFLAGS-tst-longjmp_chk.c = -D_FORTIFY_SOURCE=1
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CFLAGS-tst-longjmp_chk2.c = -fexceptions -fasynchronous-unwind-tables
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CPPFLAGS-tst-longjmp_chk2.c = -D_FORTIFY_SOURCE=1
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CFLAGS-tst-longjmp_chk3.c = -fexceptions -fasynchronous-unwind-tables
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CPPFLAGS-tst-longjmp_chk3.c = -D_FORTIFY_SOURCE=1
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# We know these tests have problems with format strings, this is what
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# we are testing. Disable that warning. They are also testing
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# deprecated functions (notably gets) so disable that warning as well.
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# And they also generate warnings from warning attributes, which
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# cannot be disabled via pragmas, so require -Wno-error to be used.
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CFLAGS-tst-chk1.c = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-chk2.c = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-chk3.c = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-chk4.cc = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-chk5.cc = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-chk6.cc = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-lfschk1.c = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-lfschk2.c = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-lfschk3.c = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-lfschk4.cc = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-lfschk5.cc = -Wno-format -Wno-deprecated-declarations -Wno-error
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CFLAGS-tst-lfschk6.cc = -Wno-format -Wno-deprecated-declarations -Wno-error
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LDLIBS-tst-chk4 = -lstdc++
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LDLIBS-tst-chk5 = -lstdc++
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LDLIBS-tst-chk6 = -lstdc++
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LDLIBS-tst-lfschk4 = -lstdc++
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LDLIBS-tst-lfschk5 = -lstdc++
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LDLIBS-tst-lfschk6 = -lstdc++
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# backtrace_symbols only works if we link with -rdynamic. backtrace
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# requires unwind tables on most architectures.
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CFLAGS-tst-backtrace2.c += -funwind-tables
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CFLAGS-tst-backtrace3.c += -funwind-tables
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CFLAGS-tst-backtrace4.c += -funwind-tables
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CFLAGS-tst-backtrace5.c += -funwind-tables
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CFLAGS-tst-backtrace6.c += -funwind-tables
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LDFLAGS-tst-backtrace2 = -rdynamic
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LDFLAGS-tst-backtrace3 = -rdynamic
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LDFLAGS-tst-backtrace4 = -rdynamic
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LDFLAGS-tst-backtrace5 = -rdynamic
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LDFLAGS-tst-backtrace6 = -rdynamic
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CFLAGS-tst-ssp-1.c = -fstack-protector-all
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tests = backtrace-tst tst-longjmp_chk tst-chk1 tst-chk2 tst-chk3 \
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tst-lfschk1 tst-lfschk2 tst-lfschk3 test-strcpy_chk test-stpcpy_chk \
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tst-chk4 tst-chk5 tst-chk6 tst-lfschk4 tst-lfschk5 tst-lfschk6 \
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tst-longjmp_chk2 tst-backtrace2 tst-backtrace3 tst-backtrace4 \
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tst-backtrace5 tst-backtrace6
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ifeq ($(have-ssp),yes)
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tests += tst-ssp-1
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endif
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ifeq (,$(CXX))
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tests-unsupported = tst-chk4 tst-chk5 tst-chk6 \
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tst-lfschk4 tst-lfschk5 tst-lfschk6
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endif
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extra-libs = libSegFault libpcprofile
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extra-libs-others = $(extra-libs)
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libSegFault-routines = segfault
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libSegFault-inhibit-o = $(filter-out .os,$(object-suffixes))
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libpcprofile-routines = pcprofile
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libpcprofile-inhibit-o = $(filter-out .os,$(object-suffixes))
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others = pcprofiledump
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install-bin = pcprofiledump
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install-bin-script = xtrace
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ifeq ($(build-shared),yes)
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install-bin-script += catchsegv
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endif
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generated += catchsegv xtrace
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include ../Rules
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ifeq ($(run-built-tests),yes)
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LOCALES := de_DE.UTF-8
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include ../gen-locales.mk
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$(objpfx)tst-chk1.out: $(gen-locales)
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endif
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sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
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$(objpfx)catchsegv: catchsegv.sh $(common-objpfx)soversions.mk \
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$(common-objpfx)config.make
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slibpfx=`echo $(slibdir)|sed 's/lib\(64\|\)$$/\\\\\\\\$$LIB/'`; \
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sed -e 's|@VERSION@|$(version)|' -e "s|@SLIB@|$$slibpfx|" \
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-e 's|@PKGVERSION@|$(PKGVERSION)|' \
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-e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $< > $@.new
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chmod 555 $@.new
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mv -f $@.new $@
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$(objpfx)pcprofiledump: $(objpfx)pcprofiledump.o
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$(objpfx)xtrace: xtrace.sh
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rm -f $@.new
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sed -e 's|@BASH@|$(BASH)|' -e 's|@VERSION@|$(version)|' \
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-e 's|@SLIBDIR@|$(sLIBdir)|' -e 's|@BINDIR@|$(bindir)|' \
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-e 's|@PKGVERSION@|$(PKGVERSION)|' \
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-e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^ > $@.new \
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&& rm -f $@ && mv $@.new $@ && chmod +x $@
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