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dc30acf20b
The __read_chk function, as the implementation behind the fortified read function, must be a cancellation point, thus it cannot use INLINE_SYSCALL.
252 lines
8.9 KiB
Makefile
252 lines
8.9 KiB
Makefile
# Copyright (C) 1998-2022 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 = 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 vobprintf_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 := 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 += -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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CPPFLAGS-tst-realpath-chk.c += -D_FORTIFY_SOURCE=2
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CPPFLAGS-tst-read-chk-cancel.c += -D_FORTIFY_SOURCE=2
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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-chk =
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tests-cc-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).$(1) += -D_FILE_OFFSET_BITS=64
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endef
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define cflags-nongnu
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CFLAGS-tst-fortify-$(1)-nongnu-$(2).$(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-$(1)-chk += tst-fortify-$(1)-$(2)-$(3)
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CFLAGS-tst-fortify-$(1)-$(2)-$(3).$(1) += -D_FORTIFY_SOURCE=$(3) -Wno-format \
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-Wno-deprecated-declarations \
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-Wno-error
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$(eval $(call cflags-$(2),$(1),$(3)))
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$(objpfx)tst-fortify-$(1)-$(2)-$(3).$(1): tst-fortify.c Makefile
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( echo "/* Autogenerated from Makefile. */"; \
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echo "$(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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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))))))
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tests-all-chk += $(tests-c-chk) $(tests-cc-chk)
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define link-cc
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LDLIBS-$(1) = -lstdc++
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endef
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$(foreach t,$(tests-cc-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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CFLAGS-tst-ssp-1.c += -fstack-protector-all
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tests = backtrace-tst \
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tst-longjmp_chk \
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test-strcpy_chk \
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test-stpcpy_chk \
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tst-longjmp_chk2 \
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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-realpath-chk \
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$(tests-all-chk)
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ifeq ($(have-ssp),yes)
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tests += tst-ssp-1
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endif
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ifeq ($(have-thread-library), yes)
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tests += tst-read-chk-cancel
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endif
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ifeq (,$(CXX))
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tests-unsupported = $(tests-cc-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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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@|$(PKGVERSION)|' \
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-e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^ > $@.new \
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&& rm -f $@ && mv $@.new $@ && chmod +x $@
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$(objpfx)tst-read-chk-cancel: $(shared-thread-library)
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