debug/Makefile

   1 # Copyright (C) 1998-2023 Free Software Foundation, Inc.
   2 # Copyright The GNU Toolchain Authors.
   3 # This file is part of the GNU C Library.
   4
   5 # The GNU C Library is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU Lesser General Public
   7 # License as published by the Free Software Foundation; either
   8 # version 2.1 of the License, or (at your option) any later version.
   9
  10 # The GNU C Library is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # Lesser General Public License for more details.
  14
  15 # You should have received a copy of the GNU Lesser General Public
  16 # License along with the GNU C Library; if not, see
  17 # <https://www.gnu.org/licenses/>.
  18
  19 #
  20 #       Sub-makefile for debug portion of the library.
  21 #
  22 subdir  := debug
  23
  24 include ../Makeconfig
  25
  26 headers := execinfo.h
  27
  28 # Note that ptsname_r_chk and getlogin_r are not here, but in
  29 # login/Makefile instead.  If that subdir is omitted from the
  30 # build, its _FORTIFY_SOURCE support will be too.
  31 routines  = backtrace backtracesyms backtracesymsfd noophooks \
  32             memcpy_chk memmove_chk mempcpy_chk memset_chk stpcpy_chk \
  33             strcat_chk strcpy_chk strncat_chk strncpy_chk stpncpy_chk \
  34             sprintf_chk vsprintf_chk snprintf_chk vsnprintf_chk \
  35             printf_chk fprintf_chk vprintf_chk vfprintf_chk \
  36             gets_chk chk_fail readonly-area fgets_chk fgets_u_chk \
  37             read_chk pread_chk pread64_chk recv_chk recvfrom_chk \
  38             readlink_chk readlinkat_chk getwd_chk getcwd_chk \
  39             realpath_chk fread_chk fread_u_chk \
  40             wctomb_chk wcscpy_chk wmemcpy_chk wmemmove_chk wmempcpy_chk \
  41             wcpcpy_chk wcsncpy_chk wcscat_chk wcsncat_chk wmemset_chk \
  42             wcpncpy_chk \
  43             swprintf_chk vswprintf_chk wprintf_chk fwprintf_chk \
  44             vwprintf_chk vfwprintf_chk fgetws_chk fgetws_u_chk \
  45             confstr_chk getgroups_chk ttyname_r_chk \
  46             gethostname_chk getdomainname_chk wcrtomb_chk mbsnrtowcs_chk \
  47             wcsnrtombs_chk mbsrtowcs_chk wcsrtombs_chk mbstowcs_chk \
  48             wcstombs_chk asprintf_chk vasprintf_chk dprintf_chk \
  49             vdprintf_chk obprintf_chk vobprintf_chk \
  50             longjmp_chk ____longjmp_chk \
  51             fdelt_chk poll_chk ppoll_chk \
  52             explicit_bzero_chk \
  53             stack_chk_fail fortify_fail \
  54             $(static-only-routines)
  55 static-only-routines := stack_chk_fail_local
  56
  57 # Don't add stack_chk_fail_local.o to libc.a since __stack_chk_fail_local
  58 # is an alias of __stack_chk_fail in stack_chk_fail.o.
  59 elide-routines.o := stack_chk_fail_local
  60
  61 # Building the stack-protector failure routines with stack protection
  62 # is not required since we have already failed a stack check and are
  63 # exiting the process.  However, the local aliases which jump to the
  64 # real routines should still be compiled with stack protection
  65 # (stack_chk_fail_local.c), so that the statically linked parts of the
  66 # library have the expected flags.
  67
  68 CFLAGS-stack_chk_fail.c += $(no-stack-protector)
  69
  70 CFLAGS-backtrace.c += -fno-omit-frame-pointer -funwind-tables
  71 CFLAGS-sprintf_chk.c += $(libio-mtsafe)
  72 CFLAGS-snprintf_chk.c += $(libio-mtsafe)
  73 CFLAGS-vsprintf_chk.c += $(libio-mtsafe)
  74 CFLAGS-vsnprintf_chk.c += $(libio-mtsafe)
  75 CFLAGS-asprintf_chk.c += $(libio-mtsafe)
  76 CFLAGS-vasprintf_chk.c += $(libio-mtsafe)
  77 CFLAGS-obprintf_chk.c += $(libio-mtsafe)
  78 CFLAGS-dprintf_chk.c += $(libio-mtsafe) -fexceptions
  79 CFLAGS-vdprintf_chk.c += $(libio-mtsafe) -fexceptions
  80 CFLAGS-printf_chk.c += $(libio-mtsafe) -fexceptions
  81 CFLAGS-fprintf_chk.c += $(libio-mtsafe) -fexceptions
  82 CFLAGS-vprintf_chk.c += $(libio-mtsafe) -fexceptions
  83 CFLAGS-vfprintf_chk.c += $(libio-mtsafe) -fexceptions
  84 CFLAGS-gets_chk.c += $(libio-mtsafe) -fexceptions
  85 CFLAGS-fgets_chk.c += $(libio-mtsafe) -fexceptions
  86 CFLAGS-fgets_u_chk.c += $(libio-mtsafe) -fexceptions
  87 CFLAGS-fread_chk.c += $(libio-mtsafe) -fexceptions
  88 CFLAGS-fread_u_chk.c += $(libio-mtsafe) -fexceptions
  89 CFLAGS-swprintf_chk.c += $(libio-mtsafe)
  90 CFLAGS-vswprintf_chk.c += $(libio-mtsafe)
  91 CFLAGS-wprintf_chk.c += $(libio-mtsafe) -fexceptions
  92 CFLAGS-fwprintf_chk.c += $(libio-mtsafe) -fexceptions
  93 CFLAGS-vwprintf_chk.c += $(libio-mtsafe) -fexceptions
  94 CFLAGS-vfwprintf_chk.c += $(libio-mtsafe) -fexceptions
  95 CFLAGS-fgetws_chk.c += $(libio-mtsafe) -fexceptions
  96 CFLAGS-fgetws_u_chk.c += $(libio-mtsafe) -fexceptions
  97 CFLAGS-read_chk.c += -fexceptions -fasynchronous-unwind-tables
  98 CFLAGS-pread_chk.c += -fexceptions -fasynchronous-unwind-tables
  99 CFLAGS-pread64_chk.c += -fexceptions -fasynchronous-unwind-tables
 100 CFLAGS-recv_chk.c += -fexceptions -fasynchronous-unwind-tables
 101 CFLAGS-recvfrom_chk.c += -fexceptions -fasynchronous-unwind-tables
 102
 103 # Need to make sure the settings here override what configure might have
 104 # set up for us, so keep the CFLAGS/CPPFLAGS split logical as the order is:
 105 # <user CFLAGS> <test CFLAGS> <user CPPFLAGS> <test CPPFLAGS>
 106 CFLAGS-tst-longjmp_chk.c += -fexceptions -fasynchronous-unwind-tables
 107 CPPFLAGS-tst-longjmp_chk.c += -D_FORTIFY_SOURCE=1
 108 CFLAGS-tst-longjmp_chk2.c += -fexceptions -fasynchronous-unwind-tables
 109 CPPFLAGS-tst-longjmp_chk2.c += -D_FORTIFY_SOURCE=1
 110 CFLAGS-tst-longjmp_chk3.c += -fexceptions -fasynchronous-unwind-tables
 111 CPPFLAGS-tst-longjmp_chk3.c += -D_FORTIFY_SOURCE=1
 112 CPPFLAGS-tst-realpath-chk.c += -D_FORTIFY_SOURCE=2
 113 CPPFLAGS-tst-chk-cancel.c += -D_FORTIFY_SOURCE=2
 114
 115 # _FORTIFY_SOURCE tests.
 116 # Auto-generate tests for _FORTIFY_SOURCE for different levels, compilers and
 117 # preprocessor conditions based on tst-fortify.c.
 118 #
 119 # To add a new test condition, define a cflags-$(cond) make variable to set
 120 # CFLAGS for the file.
 121
 122 tests-all-chk = tst-fortify
 123 tests-c-def-chk =
 124 tests-cc-def-chk =
 125 tests-c-time64-chk =
 126 tests-cc-time64-chk =
 127
 128 CFLAGS-tst-fortify.c += -Wno-format -Wno-deprecated-declarations -Wno-error
 129
 130 # No additional flags for the default tests.
 131 define cflags-default
 132 endef
 133
 134 define cflags-lfs
 135 CFLAGS-tst-fortify-$(1)-lfs-$(2)-$(3).$(1) += -D_FILE_OFFSET_BITS=64
 136 endef
 137
 138 define cflags-nongnu
 139 CFLAGS-tst-fortify-$(1)-nongnu-$(2)-$(3).$(1) += -D_LARGEFILE64_SOURCE=1
 140 endef
 141
 142 src-chk-nongnu = \#undef _GNU_SOURCE
 143
 144 # We know these tests have problems with format strings, this is what
 145 # we are testing.  Disable that warning.  They are also testing
 146 # deprecated functions (notably gets) so disable that warning as well.
 147 # And they also generate warnings from warning attributes, which
 148 # cannot be disabled via pragmas, so require -Wno-error to be used.
 149 define gen-chk-test
 150 tests-$(1)-$(4)-chk += tst-fortify-$(1)-$(2)-$(3)-$(4)
 151 CFLAGS-tst-fortify-$(1)-$(2)-$(3)-$(4).$(1) += -D_FORTIFY_SOURCE=$(3) -Wno-format \
 152                                           -Wno-deprecated-declarations \
 153                                           -Wno-error
 154 $(eval $(call cflags-$(2),$(1),$(3),$(4)))
 155 $(objpfx)tst-fortify-$(1)-$(2)-$(3)-$(4).$(1): tst-fortify.c Makefile
 156         ( echo "/* Autogenerated from Makefile.  */"; \
 157           echo "$(src-chk-$(2))"; \
 158           echo "#include \"tst-fortify.c\"" ) > $$@.tmp
 159         mv $$@.tmp $$@
 160 endef
 161
 162 chk-extensions = c cc
 163 chk-types = default lfs nongnu
 164 # 64 bit time_t implies LFS.
 165 chk-types-time64 = default nongnu
 166 chk-levels = 1 2 3
 167
 168 $(foreach e,$(chk-extensions), \
 169   $(foreach t,$(chk-types), \
 170     $(foreach l,$(chk-levels), \
 171       $(eval $(call gen-chk-test,$(e),$(t),$(l),def)))))
 172
 173 tests-all-chk += $(tests-c-def-chk) $(tests-cc-def-chk)
 174
 175 $(foreach e,$(chk-extensions), \
 176   $(foreach t,$(chk-types-time64), \
 177     $(foreach l,$(chk-levels), \
 178       $(eval $(call gen-chk-test,$(e),$(t),$(l),time64)))))
 179
 180 tests-all-time64-chk += $(tests-c-time64-chk) $(tests-cc-time64-chk)
 181
 182 define link-cc
 183 LDLIBS-$(1) = -lstdc++
 184 endef
 185 $(foreach t,$(tests-cc-def-chk), $(eval $(call link-cc,$(t))))
 186 $(foreach t,$(tests-cc-time64-chk), $(eval $(call link-cc,$(t))))
 187
 188 # backtrace_symbols only works if we link with -rdynamic.  backtrace
 189 # requires unwind tables on most architectures.
 190 CFLAGS-tst-backtrace2.c += -funwind-tables
 191 CFLAGS-tst-backtrace3.c += -funwind-tables
 192 CFLAGS-tst-backtrace4.c += -funwind-tables
 193 CFLAGS-tst-backtrace5.c += -funwind-tables
 194 CFLAGS-tst-backtrace6.c += -funwind-tables
 195 LDFLAGS-tst-backtrace2 = -rdynamic
 196 LDFLAGS-tst-backtrace3 = -rdynamic
 197 LDFLAGS-tst-backtrace4 = -rdynamic
 198 LDFLAGS-tst-backtrace5 = -rdynamic
 199 LDFLAGS-tst-backtrace6 = -rdynamic
 200
 201 CFLAGS-tst-ssp-1.c += -fstack-protector-all
 202
 203 # Disable compiler optimizations around vsprintf (the function under test).
 204 CFLAGS-tst-sprintf-fortify-unchecked.c = \
 205   -fno-builtin-vsprintf -fno-builtin-__vsprintf_chk
 206
 207 tests = backtrace-tst \
 208         tst-longjmp_chk \
 209         test-strcpy_chk \
 210         test-stpcpy_chk \
 211         tst-longjmp_chk2 \
 212         tst-backtrace2 \
 213         tst-backtrace3 \
 214         tst-backtrace4 \
 215         tst-backtrace5 \
 216         tst-backtrace6 \
 217         tst-realpath-chk \
 218         tst-sprintf-fortify-unchecked \
 219         $(tests-all-chk)
 220
 221 tests-time64 += \
 222         $(tests-all-time64-chk) \
 223         # tests-time64
 224
 225 ifeq ($(have-ssp),yes)
 226 tests += tst-ssp-1
 227 endif
 228
 229 ifeq ($(have-thread-library), yes)
 230 tests += tst-chk-cancel
 231 endif
 232
 233 ifeq (,$(CXX))
 234 tests-unsupported = $(tests-cc-def-chk) $(tests-cc-time64-chk)
 235 endif
 236
 237 extra-libs = libpcprofile
 238 extra-libs-others = $(extra-libs)
 239
 240 libpcprofile-routines = pcprofile
 241 libpcprofile-inhibit-o = $(filter-out .os,$(object-suffixes))
 242
 243 others = pcprofiledump
 244 install-bin = pcprofiledump
 245 install-bin-script = xtrace
 246
 247 generated += xtrace
 248
 249 include ../Rules
 250
 251 ifeq ($(run-built-tests),yes)
 252 LOCALES := de_DE.UTF-8
 253 include ../gen-locales.mk
 254
 255 define chk-gen-locales
 256 $(objpfx)$(1).out: $(gen-locales)
 257 endef
 258 $(foreach t, $(tests-all-chk), $(eval $(call chk-gen-locales,$(t))))
 259 $(foreach t, $(tests-all-time64-chk), $(eval $(call chk-gen-locales,$(t))))
 260 endif
 261
 262 sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
 263
 264 $(objpfx)pcprofiledump: $(objpfx)pcprofiledump.o
 265
 266 $(objpfx)xtrace: xtrace.sh
 267         rm -f $@.new
 268         sed -e 's|@VERSION@|$(version)|' -e 's|@SLIBDIR@|$(sLIBdir)|' \
 269             -e 's|@BINDIR@|$(bindir)|' -e 's|@PKGVERSION@|$(PKGVERSION)|' \
 270             -e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^ > $@.new \
 271         && rm -f $@ && mv $@.new $@ && chmod +x $@
 272
 273 $(objpfx)tst-chk-cancel: $(shared-thread-library)