mirror of
https://mirrors.tuna.tsinghua.edu.cn/git/glibc.git
synced 2026-01-12 00:20:19 +08:00
20528165bd
And add extra checks to enable for binutils 2.45 and if the architecture
explicitly enables it. When SFrame is disabled, all the related code
is also not enabled for backtrace() and _dl_find_object(), so SFrame
backtracking is not used even if the binary has the SFrame segment.
This patch also adds some other related fixes:
* Fixed an issue with AC_CHECK_PROG_VER, where the READELF_SFRAME
usage prevented specifying a different readelf through READELF
environment variable at configure time.
* Add an extra arch-specific internal definition,
libc_cv_support_sframe, to disable --enable-sframe on architectures
that have binutils but not glibc support (s390x).
* Renamed the tests without the .sframe segment and move the
tst-backtrace1 from pthread to debug.
* Use the built compiler strip to remove the .sframe segment,
instead of the system one (which might not support SFrame).
Checked on x86_64-linux-gnu and aarch64-linux-gnu.
Reviewed-by: Sam James <sam@gentoo.org>
413 lines
13 KiB
Makefile
413 lines
13 KiB
Makefile
# Copyright (C) 1998-2025 Free Software Foundation, Inc.
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# Copyright The GNU Toolchain Authors.
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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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# <https://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 = \
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$(static-only-routines) \
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____longjmp_chk \
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asprintf_chk \
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backtrace \
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backtracesyms \
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backtracesymsfd \
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chk_fail \
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confstr_chk \
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dprintf_chk \
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explicit_bzero_chk \
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fdelt_chk \
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fgets_chk \
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fgets_u_chk \
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fgetws_chk \
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fgetws_u_chk \
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fortify_fail \
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fprintf_chk \
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fread_chk \
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fread_u_chk \
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fwprintf_chk \
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getcwd_chk \
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getdomainname_chk \
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getgroups_chk \
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gethostname_chk \
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gets_chk \
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getwd_chk \
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inet_ntop_chk \
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inet_pton_chk \
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longjmp_chk \
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mbsnrtowcs_chk \
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mbsrtowcs_chk \
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mbstowcs_chk \
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memcpy_chk \
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memmove_chk \
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mempcpy_chk \
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memset_chk \
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noophooks \
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obprintf_chk \
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poll_chk \
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ppoll_chk \
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pread64_chk \
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pread_chk \
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printf_chk \
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read_chk \
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readlink_chk \
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readlinkat_chk \
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readonly-area \
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readonly-area-fallback \
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realpath_chk \
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recv_chk \
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recvfrom_chk \
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snprintf_chk \
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sprintf_chk \
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stack_chk_fail \
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stpcpy_chk \
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stpncpy_chk \
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strcat_chk \
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strcpy_chk \
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strlcat_chk \
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strlcpy_chk \
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strncat_chk \
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strncpy_chk \
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swprintf_chk \
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ttyname_r_chk \
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vasprintf_chk \
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vdprintf_chk \
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vfprintf_chk \
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vfwprintf_chk \
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vobprintf_chk \
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vprintf_chk \
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vsnprintf_chk \
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vsprintf_chk \
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vswprintf_chk \
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vwprintf_chk \
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wcpcpy_chk \
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wcpncpy_chk \
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wcrtomb_chk \
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wcscat_chk \
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wcscpy_chk \
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wcslcat_chk \
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wcslcpy_chk \
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wcsncat_chk \
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wcsncpy_chk \
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wcsnrtombs_chk \
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wcsrtombs_chk \
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wcstombs_chk \
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wctomb_chk \
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wmemcpy_chk \
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wmemmove_chk \
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wmempcpy_chk \
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wmemset_chk \
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wprintf_chk \
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# routines
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static-only-routines := 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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# is not required since we have already failed a stack check and are
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# exiting the process. However, the local aliases which jump to the
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# real routines should still be compiled with stack protection
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# (stack_chk_fail_local.c), so that the statically linked parts of the
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# library have the expected flags.
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CFLAGS-stack_chk_fail.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 += $(no-fortify-source) -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 += $(no-fortify-source) -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 += $(no-fortify-source) -D_FORTIFY_SOURCE=1
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CPPFLAGS-tst-realpath-chk.c += $(no-fortify-source) -D_FORTIFY_SOURCE=2
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CPPFLAGS-tst-chk-cancel.c += $(no-fortify-source) -D_FORTIFY_SOURCE=2
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CFLAGS-tst-sprintf-fortify-rdonly.c += $(no-fortify-source) -D_FORTIFY_SOURCE=2
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CFLAGS-tst-sprintf-fortify-rdonly-mod.c += $(no-fortify-source) -D_FORTIFY_SOURCE=2
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CFLAGS-tst-sprintf-fortify-rdonly-dlopen.c += $(no-fortify-source) -D_FORTIFY_SOURCE=2
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CFLAGS-tst-sprintf-fortify-rdonly-static.c += $(no-fortify-source) -D_FORTIFY_SOURCE=2
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CFLAGS-tst-fortify-syslog.c += $(no-fortify-source) -D_FORTIFY_SOURCE=2
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CFLAGS-tst-fortify-wide.c += $(no-fortify-source) -D_FORTIFY_SOURCE=2
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LDFLAGS-tst-sprintf-fortify-rdonly-static += $(relro-LDFLAGS)
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$(objpfx)tst-sprintf-fortify-rdonly: $(objpfx)tst-sprintf-fortify-rdonly-mod.so
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$(objpfx)tst-sprintf-fortify-rdonly.out: \
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$(objpfx)tst-sprintf-fortify-rdonly-dlopen.so
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$(objpfx)tst-sprintf-fortify-rdonly-static: \
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$(objpfx)tst-sprintf-fortify-rdonly-dlopen.o
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$(objpfx)tst-sprintf-fortify-rdonly-static.out: \
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$(objpfx)tst-sprintf-fortify-rdonly-dlopen.so
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tst-sprintf-fortify-rdonly-static-ENV = \
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LD_LIBRARY_PATH=$(objpfx):$(common-objpfx):$(common-objpfx)/elf
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# _FORTIFY_SOURCE tests.
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# Auto-generate tests for _FORTIFY_SOURCE for different levels, compilers and
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# preprocessor conditions based on tst-fortify.c.
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#
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# To add a new test condition, define a cflags-$(cond) make variable to set
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# CFLAGS for the file.
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tests-all-chk = tst-fortify
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tests-c-def-chk =
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tests-cc-def-chk =
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tests-c-time64-chk =
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tests-cc-time64-chk =
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CFLAGS-tst-fortify.c += -Wno-format -Wno-deprecated-declarations -Wno-error
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# No additional flags for the default tests.
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define cflags-default
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endef
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define cflags-lfs
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CFLAGS-tst-fortify-$(1)-lfs-$(2)-$(3).$(1) += -D_FILE_OFFSET_BITS=64
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endef
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define cflags-nongnu
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CFLAGS-tst-fortify-$(1)-nongnu-$(2)-$(3).$(1) += -D_LARGEFILE64_SOURCE=1
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endef
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src-chk-nongnu = \#undef _GNU_SOURCE
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# We know these tests have problems with format strings, this is what
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# we are testing. Disable that warning. They are also testing
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# deprecated functions (notably gets) so disable that warning as well.
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# And they also generate warnings from warning attributes, which
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# cannot be disabled via pragmas, so require -Wno-error to be used.
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define gen-chk-test
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tests-$(1)-$(4)-chk += tst-fortify-$(1)-$(2)-$(3)-$(4)
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CFLAGS-tst-fortify-$(1)-$(2)-$(3)-$(4).$(1) += $(no-fortify-source) -D_FORTIFY_SOURCE=$(3) \
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-Wno-format \
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-Wno-deprecated-declarations \
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-Wno-error
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$(eval $(call cflags-$(2),$(1),$(3),$(4)))
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$(objpfx)tst-fortify-$(1)-$(2)-$(3)-$(4).$(1): tst-fortify.c Makefile
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( echo "/* Autogenerated from Makefile. */"; \
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echo "$(src-chk-$(2))"; \
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echo "#include \"tst-fortify.c\"" ) > $$@.tmp
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mv $$@.tmp $$@
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endef
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chk-extensions = c cc
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chk-types = default lfs nongnu
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# 64 bit time_t implies LFS.
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chk-types-time64 = default nongnu
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chk-levels = 1 2 3
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$(foreach e,$(chk-extensions), \
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$(foreach t,$(chk-types), \
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$(foreach l,$(chk-levels), \
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$(eval $(call gen-chk-test,$(e),$(t),$(l),def)))))
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tests-all-chk += $(tests-c-def-chk) $(tests-cc-def-chk)
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$(foreach e,$(chk-extensions), \
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$(foreach t,$(chk-types-time64), \
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$(foreach l,$(chk-levels), \
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$(eval $(call gen-chk-test,$(e),$(t),$(l),time64)))))
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tests-all-time64-chk += $(tests-c-time64-chk) $(tests-cc-time64-chk)
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define link-cc
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LDLIBS-$(1) = -lstdc++
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endef
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$(foreach t,$(tests-cc-def-chk), $(eval $(call link-cc,$(t))))
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$(foreach t,$(tests-cc-time64-chk), $(eval $(call link-cc,$(t))))
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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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$(objpfx)tst-backtrace1: $(shared-thread-library)
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# When SFrame is enabled, make sure the dwarf unwinder is also exercised.
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ifeq ($(enable-gsframe),yes)
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dw_unwind_pair := \
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tst-backtrace1-nosframe:tst-backtrace1 \
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tst-backtrace2-nosframe:tst-backtrace2 \
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tst-backtrace3-nosframe:tst-backtrace3 \
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tst-backtrace4-nosframe:tst-backtrace4 \
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tst-backtrace5-nosframe:tst-backtrace5 \
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tst-backtrace6-nosframe:tst-backtrace6
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first_column = $(foreach pair,$(dw_unwind_pair),$(word 1,$(subst :, ,$(pair))))
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tests-dw-unwind = $(patsubst %,$(objpfx)%.out,$(first_column))
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tests-special += $(tests-dw-unwind)
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endif
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define make-strip-rule
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$(objpfx)$(word 1,$(subst :, ,$(1))): $(objpfx)$(word 2,$(subst :, ,$(1)))
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$(STRIP) --remove-section=.sframe $$< -o $$@
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endef
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$(foreach pair,$(dw_unwind_pair),$(eval $(call make-strip-rule,$(pair))))
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define make-run-rule
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$(objpfx)$(word 1,$(subst :, ,$(1))).out: /dev/null $(objpfx)$(word 1,$(subst :, ,$(1)))
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$$(make-test-out) > $$@; $$(evaluate-test)
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endef
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$(foreach pair,$(dw_unwind_pair),$(eval $(call make-run-rule,$(pair))))
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CFLAGS-tst-ssp-1.c += -fstack-protector-all
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# Disable compiler optimizations around vsprintf (the function under test).
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CFLAGS-tst-sprintf-fortify-unchecked.c = \
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-fno-builtin-vsprintf -fno-builtin-__vsprintf_chk
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tests = \
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$(tests-all-chk) \
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backtrace-tst \
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test-stpcpy_chk \
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test-strcpy_chk \
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tst-backtrace1 \
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tst-backtrace2 \
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tst-backtrace3 \
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tst-backtrace4 \
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tst-backtrace5 \
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tst-backtrace6 \
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tst-fortify-wide \
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tst-longjmp_chk \
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tst-longjmp_chk2 \
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tst-longjmp_chk3 \
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tst-realpath-chk \
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tst-sprintf-fortify-rdonly \
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tst-sprintf-fortify-rdonly-static \
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tst-sprintf-fortify-unchecked \
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# tests
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tests-static = \
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tst-sprintf-fortify-rdonly-static \
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# tests-static
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tests-time64 += \
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$(tests-all-time64-chk) \
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# tests-time64
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tests-container += \
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tst-fortify-syslog \
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# tests-container
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modules-names += \
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tst-sprintf-fortify-rdonly-dlopen \
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tst-sprintf-fortify-rdonly-mod \
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# modules-names
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ifeq ($(have-ssp),yes)
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tests += tst-ssp-1
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endif
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ifeq ($(have-thread-library), yes)
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tests += tst-chk-cancel
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endif
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ifeq (,$(CXX))
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tests-unsupported = $(tests-cc-def-chk) $(tests-cc-time64-chk)
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endif
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extra-libs = libpcprofile
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extra-libs-others = $(extra-libs)
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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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generated += xtrace
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include ../Rules
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ifeq ($(run-built-tests),yes)
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LOCALES := de_DE.UTF-8
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include ../gen-locales.mk
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define chk-gen-locales
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$(objpfx)$(1).out: $(gen-locales)
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endef
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$(foreach t, $(tests-all-chk), $(eval $(call chk-gen-locales,$(t))))
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$(foreach t, $(tests-all-time64-chk), $(eval $(call chk-gen-locales,$(t))))
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endif
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sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
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$(objpfx)pcprofiledump: $(objpfx)pcprofiledump.o
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$(objpfx)xtrace: xtrace.sh
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rm -f $@.new
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sed -e 's|@VERSION@|$(version)|' -e 's|@SLIBDIR@|$(sLIBdir)|' \
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-e 's|@BINDIR@|$(bindir)|' -e 's|@PKGVERSION@|$(PKGVERSION)|' \
|
|
-e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^ > $@.new \
|
|
&& rm -f $@ && mv $@.new $@ && chmod +x $@
|
|
|
|
$(objpfx)tst-chk-cancel: $(shared-thread-library)
|