-# Copyright (C) 1998-2001,2004-2008, 2009, 2011, 2012 Free Software Foundation, Inc.
+# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright The GNU Toolchain Authors.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
-# License along with the GNU C Library; if not, write to the Free
-# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-# 02111-1307 USA.
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
#
# Sub-makefile for debug portion of the library.
#
subdir := debug
+include ../Makeconfig
+
headers := execinfo.h
-distribute = sigcontextinfo.h register-dump.h frame.h
+# Note that ptsname_r_chk and getlogin_r are not here, but in
+# login/Makefile instead. If that subdir is omitted from the
+# build, its _FORTIFY_SOURCE support will be too.
routines = backtrace backtracesyms backtracesymsfd noophooks \
memcpy_chk memmove_chk mempcpy_chk memset_chk stpcpy_chk \
strcat_chk strcpy_chk strncat_chk strncpy_chk stpncpy_chk \
gets_chk chk_fail readonly-area fgets_chk fgets_u_chk \
read_chk pread_chk pread64_chk recv_chk recvfrom_chk \
readlink_chk readlinkat_chk getwd_chk getcwd_chk \
- realpath_chk ptsname_r_chk fread_chk fread_u_chk \
+ realpath_chk fread_chk fread_u_chk \
wctomb_chk wcscpy_chk wmemcpy_chk wmemmove_chk wmempcpy_chk \
wcpcpy_chk wcsncpy_chk wcscat_chk wcsncat_chk wmemset_chk \
wcpncpy_chk \
swprintf_chk vswprintf_chk wprintf_chk fwprintf_chk \
vwprintf_chk vfwprintf_chk fgetws_chk fgetws_u_chk \
- confstr_chk getgroups_chk ttyname_r_chk getlogin_r_chk \
+ confstr_chk getgroups_chk ttyname_r_chk \
gethostname_chk getdomainname_chk wcrtomb_chk mbsnrtowcs_chk \
wcsnrtombs_chk mbsrtowcs_chk wcsrtombs_chk mbstowcs_chk \
wcstombs_chk asprintf_chk vasprintf_chk dprintf_chk \
- vdprintf_chk obprintf_chk \
+ vdprintf_chk obprintf_chk vobprintf_chk \
longjmp_chk ____longjmp_chk \
fdelt_chk poll_chk ppoll_chk \
+ explicit_bzero_chk \
stack_chk_fail fortify_fail \
$(static-only-routines)
-static-only-routines := warning-nop stack_chk_fail_local
-
-CFLAGS-backtrace.c = -fno-omit-frame-pointer
-CFLAGS-sprintf_chk.c = -D_IO_MTSAFE_IO
-CFLAGS-snprintf_chk.c = -D_IO_MTSAFE_IO
-CFLAGS-vsprintf_chk.c = -D_IO_MTSAFE_IO
-CFLAGS-vsnprintf_chk.c = -D_IO_MTSAFE_IO
-CFLAGS-asprintf_chk.c = -D_IO_MTSAFE_IO
-CFLAGS-vasprintf_chk.c = -D_IO_MTSAFE_IO
-CFLAGS-obprintf_chk.c = -D_IO_MTSAFE_IO
-CFLAGS-dprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-vdprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-printf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-fprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-vprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-vfprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-gets_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-fgets_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-fgets_u_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-fread_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-fread_u_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-swprintf_chk.c = -D_IO_MTSAFE_IO
-CFLAGS-vswprintf_chk.c = -D_IO_MTSAFE_IO
-CFLAGS-wprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-fwprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-vwprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-vfwprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-fgetws_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-fgetws_u_chk.c = -D_IO_MTSAFE_IO $(exceptions)
-CFLAGS-read_chk.c = -fexceptions -fasynchronous-unwind-tables
-CFLAGS-pread_chk.c = -fexceptions -fasynchronous-unwind-tables
-CFLAGS-pread64_chk.c = -fexceptions -fasynchronous-unwind-tables
-CFLAGS-recv_chk.c = -fexceptions -fasynchronous-unwind-tables
-CFLAGS-recvfrom_chk.c = -fexceptions -fasynchronous-unwind-tables
-CFLAGS-tst-longjmp_chk.c = -fexceptions -fasynchronous-unwind-tables \
- -D_FORTIFY_SOURCE=1
-CFLAGS-tst-longjmp_chk2.c = -fexceptions -fasynchronous-unwind-tables \
- -D_FORTIFY_SOURCE=1
+static-only-routines := stack_chk_fail_local
+
+# Don't add stack_chk_fail_local.o to libc.a since __stack_chk_fail_local
+# is an alias of __stack_chk_fail in stack_chk_fail.o.
+elide-routines.o := stack_chk_fail_local
+
+# Building the stack-protector failure routines with stack protection
+# is not required since we have already failed a stack check and are
+# exiting the process. However, the local aliases which jump to the
+# real routines should still be compiled with stack protection
+# (stack_chk_fail_local.c), so that the statically linked parts of the
+# library have the expected flags.
+
+CFLAGS-stack_chk_fail.c += $(no-stack-protector)
+
+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)
+CFLAGS-vsnprintf_chk.c += $(libio-mtsafe)
+CFLAGS-asprintf_chk.c += $(libio-mtsafe)
+CFLAGS-vasprintf_chk.c += $(libio-mtsafe)
+CFLAGS-obprintf_chk.c += $(libio-mtsafe)
+CFLAGS-dprintf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-vdprintf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-printf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-fprintf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-vprintf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-vfprintf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-gets_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-fgets_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-fgets_u_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-fread_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-fread_u_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-swprintf_chk.c += $(libio-mtsafe)
+CFLAGS-vswprintf_chk.c += $(libio-mtsafe)
+CFLAGS-wprintf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-fwprintf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-vwprintf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-vfwprintf_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-fgetws_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-fgetws_u_chk.c += $(libio-mtsafe) -fexceptions
+CFLAGS-read_chk.c += -fexceptions -fasynchronous-unwind-tables
+CFLAGS-pread_chk.c += -fexceptions -fasynchronous-unwind-tables
+CFLAGS-pread64_chk.c += -fexceptions -fasynchronous-unwind-tables
+CFLAGS-recv_chk.c += -fexceptions -fasynchronous-unwind-tables
+CFLAGS-recvfrom_chk.c += -fexceptions -fasynchronous-unwind-tables
+
+# Need to make sure the settings here override what configure might have
+# set up for us, so keep the CFLAGS/CPPFLAGS split logical as the order is:
+# <user CFLAGS> <test CFLAGS> <user CPPFLAGS> <test CPPFLAGS>
+CFLAGS-tst-longjmp_chk.c += -fexceptions -fasynchronous-unwind-tables
+CPPFLAGS-tst-longjmp_chk.c += -D_FORTIFY_SOURCE=1
+CFLAGS-tst-longjmp_chk2.c += -fexceptions -fasynchronous-unwind-tables
+CPPFLAGS-tst-longjmp_chk2.c += -D_FORTIFY_SOURCE=1
+CFLAGS-tst-longjmp_chk3.c += -fexceptions -fasynchronous-unwind-tables
+CPPFLAGS-tst-longjmp_chk3.c += -D_FORTIFY_SOURCE=1
+CPPFLAGS-tst-realpath-chk.c += -D_FORTIFY_SOURCE=2
+
+# _FORTIFY_SOURCE tests.
+# Auto-generate tests for _FORTIFY_SOURCE for different levels, compilers and
+# preprocessor conditions based on tst-fortify.c.
+#
+# To add a new test condition, define a cflags-$(cond) make variable to set
+# CFLAGS for the file.
+
+tests-all-chk = tst-fortify
+tests-c-chk =
+tests-cc-chk =
+
+CFLAGS-tst-fortify.c += -Wno-format -Wno-deprecated-declarations -Wno-error
+
+# No additional flags for the default tests.
+define cflags-default
+endef
+
+define cflags-lfs
+CFLAGS-tst-fortify-$(1)-lfs-$(2).$(1) += -D_FILE_OFFSET_BITS=64
+endef
+
+define cflags-nongnu
+CFLAGS-tst-fortify-$(1)-nongnu-$(2).$(1) += -D_LARGEFILE64_SOURCE=1
+endef
+
+src-chk-nongnu = \#undef _GNU_SOURCE
# We know these tests have problems with format strings, this is what
-# we are testing. Disable that warning.
-CFLAGS-tst-chk1.c = -Wno-format
-CFLAGS-tst-chk2.c = -Wno-format
-CFLAGS-tst-chk3.c = -Wno-format
-CFLAGS-tst-chk4.cc = -Wno-format
-CFLAGS-tst-chk5.cc = -Wno-format
-CFLAGS-tst-chk6.cc = -Wno-format
-CFLAGS-tst-lfschk1.c = -Wno-format
-CFLAGS-tst-lfschk2.c = -Wno-format
-CFLAGS-tst-lfschk3.c = -Wno-format
-CFLAGS-tst-lfschk4.cc = -Wno-format
-CFLAGS-tst-lfschk5.cc = -Wno-format
-CFLAGS-tst-lfschk6.cc = -Wno-format
-tst-chk1-ENV = LOCPATH=$(common-objpfx)localedata
-tst-chk2-ENV = LOCPATH=$(common-objpfx)localedata
-tst-chk3-ENV = LOCPATH=$(common-objpfx)localedata
-tst-chk4-ENV = LOCPATH=$(common-objpfx)localedata
-tst-chk5-ENV = LOCPATH=$(common-objpfx)localedata
-tst-chk6-ENV = LOCPATH=$(common-objpfx)localedata
-tst-lfschk1-ENV = LOCPATH=$(common-objpfx)localedata
-tst-lfschk2-ENV = LOCPATH=$(common-objpfx)localedata
-tst-lfschk3-ENV = LOCPATH=$(common-objpfx)localedata
-tst-lfschk4-ENV = LOCPATH=$(common-objpfx)localedata
-tst-lfschk5-ENV = LOCPATH=$(common-objpfx)localedata
-tst-lfschk6-ENV = LOCPATH=$(common-objpfx)localedata
-LDFLAGS-tst-chk4 = -lstdc++
-LDFLAGS-tst-chk5 = -lstdc++
-LDFLAGS-tst-chk6 = -lstdc++
-LDFLAGS-tst-lfschk4 = -lstdc++
-LDFLAGS-tst-lfschk5 = -lstdc++
-LDFLAGS-tst-lfschk6 = -lstdc++
-
-tests = backtrace-tst tst-longjmp_chk tst-chk1 tst-chk2 tst-chk3 \
- tst-lfschk1 tst-lfschk2 tst-lfschk3 test-strcpy_chk test-stpcpy_chk \
- tst-chk4 tst-chk5 tst-chk6 tst-lfschk4 tst-lfschk5 tst-lfschk6 \
- tst-longjmp_chk2
-
-extra-libs = libSegFault libpcprofile
-extra-libs-others = $(extra-libs)
+# we are testing. Disable that warning. They are also testing
+# deprecated functions (notably gets) so disable that warning as well.
+# And they also generate warnings from warning attributes, which
+# cannot be disabled via pragmas, so require -Wno-error to be used.
+define gen-chk-test
+tests-$(1)-chk += tst-fortify-$(1)-$(2)-$(3)
+CFLAGS-tst-fortify-$(1)-$(2)-$(3).$(1) += -D_FORTIFY_SOURCE=$(3) -Wno-format \
+ -Wno-deprecated-declarations \
+ -Wno-error
+$(eval $(call cflags-$(2),$(1),$(3)))
+$(objpfx)tst-fortify-$(1)-$(2)-$(3).$(1): tst-fortify.c Makefile
+ ( echo "/* Autogenerated from Makefile. */"; \
+ echo "$(src-chk-$(2))"; \
+ echo "#include \"tst-fortify.c\"" ) > $$@.tmp
+ mv $$@.tmp $$@
+endef
+
+chk-extensions = c cc
+chk-types = default lfs nongnu
+chk-levels = 1 2 3
+
+$(foreach e,$(chk-extensions), \
+ $(foreach t,$(chk-types), \
+ $(foreach l,$(chk-levels), \
+ $(eval $(call gen-chk-test,$(e),$(t),$(l))))))
+
+tests-all-chk += $(tests-c-chk) $(tests-cc-chk)
+
+define link-cc
+LDLIBS-$(1) = -lstdc++
+endef
+$(foreach t,$(tests-cc-chk), $(eval $(call link-cc,$(t))))
+
+# backtrace_symbols only works if we link with -rdynamic. backtrace
+# requires unwind tables on most architectures.
+CFLAGS-tst-backtrace2.c += -funwind-tables
+CFLAGS-tst-backtrace3.c += -funwind-tables
+CFLAGS-tst-backtrace4.c += -funwind-tables
+CFLAGS-tst-backtrace5.c += -funwind-tables
+CFLAGS-tst-backtrace6.c += -funwind-tables
+LDFLAGS-tst-backtrace2 = -rdynamic
+LDFLAGS-tst-backtrace3 = -rdynamic
+LDFLAGS-tst-backtrace4 = -rdynamic
+LDFLAGS-tst-backtrace5 = -rdynamic
+LDFLAGS-tst-backtrace6 = -rdynamic
+
+CFLAGS-tst-ssp-1.c += -fstack-protector-all
+
+tests = backtrace-tst \
+ tst-longjmp_chk \
+ test-strcpy_chk \
+ test-stpcpy_chk \
+ tst-longjmp_chk2 \
+ tst-backtrace2 \
+ tst-backtrace3 \
+ tst-backtrace4 \
+ tst-backtrace5 \
+ tst-backtrace6 \
+ tst-realpath-chk \
+ $(tests-all-chk)
+
+ifeq ($(have-ssp),yes)
+tests += tst-ssp-1
+endif
-libSegFault-routines = segfault
-libSegFault-inhibit-o = $(filter-out .os,$(object-suffixes))
+ifeq (,$(CXX))
+tests-unsupported = $(tests-cc-chk)
+endif
+
+extra-libs = libpcprofile
+extra-libs-others = $(extra-libs)
libpcprofile-routines = pcprofile
libpcprofile-inhibit-o = $(filter-out .os,$(object-suffixes))
install-bin = pcprofiledump
install-bin-script = xtrace
-include ../Makeconfig
-
-distribute += catchsegv.sh xtrace.sh
-ifeq ($(build-shared),yes)
-install-bin-script += catchsegv
-endif
-generated = catchsegv xtrace
+generated += xtrace
include ../Rules
-sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
+ifeq ($(run-built-tests),yes)
+LOCALES := de_DE.UTF-8
+include ../gen-locales.mk
-$(objpfx)catchsegv: catchsegv.sh $(common-objpfx)soversions.mk \
- $(common-objpfx)config.make
- slibpfx=`echo $(slibdir)|sed 's/lib\(64\|\)$$/\\\\\\\\$$LIB/'`; \
- sed -e 's|@VERSION@|$(version)|' -e "s|@SLIB@|$$slibpfx|" $< > $@.new
- chmod 555 $@.new
- mv -f $@.new $@
+define chk-gen-locales
+$(objpfx)$(1).out: $(gen-locales)
+endef
+$(foreach t, $(tests-all-chk), $(eval $(call chk-gen-locales,$(t))))
+endif
+
+sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
$(objpfx)pcprofiledump: $(objpfx)pcprofiledump.o
$(objpfx)xtrace: xtrace.sh
rm -f $@.new
- sed -e 's|@BASH@|$(BASH)|' -e 's|@VERSION@|$(version)|' \
- -e 's|@SLIBDIR@|$(sLIBdir)|' -e 's|@BINDIR@|$(bindir)|' $^ > $@.new \
+ sed -e 's|@VERSION@|$(version)|' -e 's|@SLIBDIR@|$(sLIBdir)|' \
+ -e 's|@BINDIR@|$(bindir)|' -e 's|@PKGVERSION@|$(PKGVERSION)|' \
+ -e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^ > $@.new \
&& rm -f $@ && mv $@.new $@ && chmod +x $@
-
-# Depend on libc.so so a DT_NEEDED is generated in the shared objects.
-# This ensures they will load libc.so for needed symbols if loaded by
-# a statically-linked program that hasn't already loaded it.
-$(objpfx)libSegFault.so: $(common-objpfx)libc.so \
- $(common-objpfx)libc_nonshared.a \
- $(elf-objpfx)$(rtld-installed-name)
-$(objpfx)libpcprofile.so: $(common-objpfx)libc.so \
- $(common-objpfx)libc_nonshared.a \
- $(elf-objpfx)$(rtld-installed-name)
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