1 # Copyright (C) 1998-2021 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
4 # The GNU C Library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Lesser General Public
6 # License as published by the Free Software Foundation; either
7 # version 2.1 of the License, or (at your option) any later version.
9 # The GNU C Library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Lesser General Public License for more details.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with the GNU C Library; if not, see
16 # <https://www.gnu.org/licenses/>.
19 # Sub-makefile for debug portion of the library.
27 # Note that ptsname_r_chk and getlogin_r are not here, but in
28 # login/Makefile instead. If that subdir is omitted from the
29 # build, its _FORTIFY_SOURCE support will be too.
30 routines
= backtrace backtracesyms backtracesymsfd noophooks \
31 memcpy_chk memmove_chk mempcpy_chk memset_chk stpcpy_chk \
32 strcat_chk strcpy_chk strncat_chk strncpy_chk stpncpy_chk \
33 sprintf_chk vsprintf_chk snprintf_chk vsnprintf_chk \
34 printf_chk fprintf_chk vprintf_chk vfprintf_chk \
35 gets_chk chk_fail readonly-area fgets_chk fgets_u_chk \
36 read_chk pread_chk pread64_chk recv_chk recvfrom_chk \
37 readlink_chk readlinkat_chk getwd_chk getcwd_chk \
38 realpath_chk fread_chk fread_u_chk \
39 wctomb_chk wcscpy_chk wmemcpy_chk wmemmove_chk wmempcpy_chk \
40 wcpcpy_chk wcsncpy_chk wcscat_chk wcsncat_chk wmemset_chk \
42 swprintf_chk vswprintf_chk wprintf_chk fwprintf_chk \
43 vwprintf_chk vfwprintf_chk fgetws_chk fgetws_u_chk \
44 confstr_chk getgroups_chk ttyname_r_chk \
45 gethostname_chk getdomainname_chk wcrtomb_chk mbsnrtowcs_chk \
46 wcsnrtombs_chk mbsrtowcs_chk wcsrtombs_chk mbstowcs_chk \
47 wcstombs_chk asprintf_chk vasprintf_chk dprintf_chk \
48 vdprintf_chk obprintf_chk vobprintf_chk \
49 longjmp_chk ____longjmp_chk \
50 fdelt_chk poll_chk ppoll_chk \
52 stack_chk_fail fortify_fail \
53 $(static-only-routines
)
54 static-only-routines
:= stack_chk_fail_local
56 # Don't add stack_chk_fail_local.o to libc.a since __stack_chk_fail_local
57 # is an alias of __stack_chk_fail in stack_chk_fail.o.
58 elide-routines.o
:= stack_chk_fail_local
60 # Building the stack-protector failure routines with stack protection
61 # is not required since we have already failed a stack check and are
62 # exiting the process. However, the local aliases which jump to the
63 # real routines should still be compiled with stack protection
64 # (stack_chk_fail_local.c), so that the statically linked parts of the
65 # library have the expected flags.
67 CFLAGS-stack_chk_fail.c
+= $(no-stack-protector
)
69 CFLAGS-backtrace.c
+= -fno-omit-frame-pointer
-funwind-tables
70 CFLAGS-sprintf_chk.c
+= $(libio-mtsafe
)
71 CFLAGS-snprintf_chk.c
+= $(libio-mtsafe
)
72 CFLAGS-vsprintf_chk.c
+= $(libio-mtsafe
)
73 CFLAGS-vsnprintf_chk.c
+= $(libio-mtsafe
)
74 CFLAGS-asprintf_chk.c
+= $(libio-mtsafe
)
75 CFLAGS-vasprintf_chk.c
+= $(libio-mtsafe
)
76 CFLAGS-obprintf_chk.c
+= $(libio-mtsafe
)
77 CFLAGS-dprintf_chk.c
+= $(libio-mtsafe
) -fexceptions
78 CFLAGS-vdprintf_chk.c
+= $(libio-mtsafe
) -fexceptions
79 CFLAGS-printf_chk.c
+= $(libio-mtsafe
) -fexceptions
80 CFLAGS-fprintf_chk.c
+= $(libio-mtsafe
) -fexceptions
81 CFLAGS-vprintf_chk.c
+= $(libio-mtsafe
) -fexceptions
82 CFLAGS-vfprintf_chk.c
+= $(libio-mtsafe
) -fexceptions
83 CFLAGS-gets_chk.c
+= $(libio-mtsafe
) -fexceptions
84 CFLAGS-fgets_chk.c
+= $(libio-mtsafe
) -fexceptions
85 CFLAGS-fgets_u_chk.c
+= $(libio-mtsafe
) -fexceptions
86 CFLAGS-fread_chk.c
+= $(libio-mtsafe
) -fexceptions
87 CFLAGS-fread_u_chk.c
+= $(libio-mtsafe
) -fexceptions
88 CFLAGS-swprintf_chk.c
+= $(libio-mtsafe
)
89 CFLAGS-vswprintf_chk.c
+= $(libio-mtsafe
)
90 CFLAGS-wprintf_chk.c
+= $(libio-mtsafe
) -fexceptions
91 CFLAGS-fwprintf_chk.c
+= $(libio-mtsafe
) -fexceptions
92 CFLAGS-vwprintf_chk.c
+= $(libio-mtsafe
) -fexceptions
93 CFLAGS-vfwprintf_chk.c
+= $(libio-mtsafe
) -fexceptions
94 CFLAGS-fgetws_chk.c
+= $(libio-mtsafe
) -fexceptions
95 CFLAGS-fgetws_u_chk.c
+= $(libio-mtsafe
) -fexceptions
96 CFLAGS-read_chk.c
+= -fexceptions
-fasynchronous-unwind-tables
97 CFLAGS-pread_chk.c
+= -fexceptions
-fasynchronous-unwind-tables
98 CFLAGS-pread64_chk.c
+= -fexceptions
-fasynchronous-unwind-tables
99 CFLAGS-recv_chk.c
+= -fexceptions
-fasynchronous-unwind-tables
100 CFLAGS-recvfrom_chk.c
+= -fexceptions
-fasynchronous-unwind-tables
102 # Need to make sure the settings here override what configure might have
103 # set up for us, so keep the CFLAGS/CPPFLAGS split logical as the order is:
104 # <user CFLAGS> <test CFLAGS> <user CPPFLAGS> <test CPPFLAGS>
105 CFLAGS-tst-longjmp_chk.c
+= -fexceptions
-fasynchronous-unwind-tables
106 CPPFLAGS-tst-longjmp_chk.c
+= -D_FORTIFY_SOURCE
=1
107 CFLAGS-tst-longjmp_chk2.c
+= -fexceptions
-fasynchronous-unwind-tables
108 CPPFLAGS-tst-longjmp_chk2.c
+= -D_FORTIFY_SOURCE
=1
109 CFLAGS-tst-longjmp_chk3.c
+= -fexceptions
-fasynchronous-unwind-tables
110 CPPFLAGS-tst-longjmp_chk3.c
+= -D_FORTIFY_SOURCE
=1
112 # We know these tests have problems with format strings, this is what
113 # we are testing. Disable that warning. They are also testing
114 # deprecated functions (notably gets) so disable that warning as well.
115 # And they also generate warnings from warning attributes, which
116 # cannot be disabled via pragmas, so require -Wno-error to be used.
117 CFLAGS-tst-chk1.c
+= -Wno-format
-Wno-deprecated-declarations
-Wno-error
118 CFLAGS-tst-chk2.c
+= -Wno-format
-Wno-deprecated-declarations
-Wno-error
119 CFLAGS-tst-chk3.c
+= -Wno-format
-Wno-deprecated-declarations
-Wno-error
120 CFLAGS-tst-chk4.
cc += -Wno-format
-Wno-deprecated-declarations
-Wno-error
121 CFLAGS-tst-chk5.
cc += -Wno-format
-Wno-deprecated-declarations
-Wno-error
122 CFLAGS-tst-chk6.
cc += -Wno-format
-Wno-deprecated-declarations
-Wno-error
123 CFLAGS-tst-lfschk1.c
+= -Wno-format
-Wno-deprecated-declarations
-Wno-error
124 CFLAGS-tst-lfschk2.c
+= -Wno-format
-Wno-deprecated-declarations
-Wno-error
125 CFLAGS-tst-lfschk3.c
+= -Wno-format
-Wno-deprecated-declarations
-Wno-error
126 CFLAGS-tst-lfschk4.
cc += -Wno-format
-Wno-deprecated-declarations
-Wno-error
127 CFLAGS-tst-lfschk5.
cc += -Wno-format
-Wno-deprecated-declarations
-Wno-error
128 CFLAGS-tst-lfschk6.
cc += -Wno-format
-Wno-deprecated-declarations
-Wno-error
129 LDLIBS-tst-chk4
= -lstdc
++
130 LDLIBS-tst-chk5
= -lstdc
++
131 LDLIBS-tst-chk6
= -lstdc
++
132 LDLIBS-tst-lfschk4
= -lstdc
++
133 LDLIBS-tst-lfschk5
= -lstdc
++
134 LDLIBS-tst-lfschk6
= -lstdc
++
136 # backtrace_symbols only works if we link with -rdynamic. backtrace
137 # requires unwind tables on most architectures.
138 CFLAGS-tst-backtrace2.c
+= -funwind-tables
139 CFLAGS-tst-backtrace3.c
+= -funwind-tables
140 CFLAGS-tst-backtrace4.c
+= -funwind-tables
141 CFLAGS-tst-backtrace5.c
+= -funwind-tables
142 CFLAGS-tst-backtrace6.c
+= -funwind-tables
143 LDFLAGS-tst-backtrace2
= -rdynamic
144 LDFLAGS-tst-backtrace3
= -rdynamic
145 LDFLAGS-tst-backtrace4
= -rdynamic
146 LDFLAGS-tst-backtrace5
= -rdynamic
147 LDFLAGS-tst-backtrace6
= -rdynamic
149 CFLAGS-tst-ssp-1.c
+= -fstack-protector-all
151 tests
= backtrace-tst tst-longjmp_chk tst-chk1 tst-chk2 tst-chk3 \
152 tst-lfschk1 tst-lfschk2 tst-lfschk3 test-strcpy_chk test-stpcpy_chk \
153 tst-chk4 tst-chk5 tst-chk6 tst-lfschk4 tst-lfschk5 tst-lfschk6 \
154 tst-longjmp_chk2 tst-backtrace2 tst-backtrace3 tst-backtrace4 \
155 tst-backtrace5 tst-backtrace6
157 ifeq ($(have-ssp
),yes
)
162 tests-unsupported
= tst-chk4 tst-chk5 tst-chk6 \
163 tst-lfschk4 tst-lfschk5 tst-lfschk6
166 extra-libs
= libSegFault libpcprofile
167 extra-libs-others
= $(extra-libs
)
169 libSegFault-routines
= segfault
170 libSegFault-inhibit-o
= $(filter-out .os
,$(object-suffixes
))
172 libpcprofile-routines
= pcprofile
173 libpcprofile-inhibit-o
= $(filter-out .os
,$(object-suffixes
))
175 others
= pcprofiledump
176 install-bin
= pcprofiledump
177 install-bin-script
= xtrace
179 ifeq ($(build-shared
),yes
)
180 install-bin-script
+= catchsegv
182 generated
+= catchsegv xtrace
186 ifeq ($(run-built-tests
),yes
)
187 LOCALES
:= de_DE.UTF-8
188 include ..
/gen-locales.mk
190 $(objpfx
)tst-chk1.out
: $(gen-locales
)
191 $(objpfx
)tst-chk2.out
: $(gen-locales
)
192 $(objpfx
)tst-chk3.out
: $(gen-locales
)
193 $(objpfx
)tst-chk4.out
: $(gen-locales
)
194 $(objpfx
)tst-chk5.out
: $(gen-locales
)
195 $(objpfx
)tst-chk6.out
: $(gen-locales
)
196 $(objpfx
)tst-lfschk1.out
: $(gen-locales
)
197 $(objpfx
)tst-lfschk2.out
: $(gen-locales
)
198 $(objpfx
)tst-lfschk3.out
: $(gen-locales
)
199 $(objpfx
)tst-lfschk4.out
: $(gen-locales
)
200 $(objpfx
)tst-lfschk5.out
: $(gen-locales
)
201 $(objpfx
)tst-lfschk6.out
: $(gen-locales
)
204 sLIBdir
:= $(shell echo
$(slibdir
) | sed
's,lib\(\|64\)$$,\\\\$$LIB,')
206 $(objpfx
)catchsegv
: catchsegv.sh
$(common-objpfx
)soversions.mk \
207 $(common-objpfx
)config.make
208 slibpfx
=`echo $(slibdir)|sed 's/lib\(64\|\)$$/\\\\\\\\$$LIB/'`; \
209 sed
-e
's|@VERSION@|$(version)|' -e
"s|@SLIB@|$$slibpfx|" \
210 -e
's|@PKGVERSION@|$(PKGVERSION)|' \
211 -e
's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $< > $@.new
215 $(objpfx
)pcprofiledump
: $(objpfx
)pcprofiledump.o
217 $(objpfx
)xtrace
: xtrace.sh
219 sed
-e
's|@BASH@|$(BASH)|' -e
's|@VERSION@|$(version)|' \
220 -e
's|@SLIBDIR@|$(sLIBdir)|' -e
's|@BINDIR@|$(bindir)|' \
221 -e
's|@PKGVERSION@|$(PKGVERSION)|' \
222 -e
's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^
> $@.new \
223 && rm -f
$@
&& mv
$@.new
$@
&& chmod
+x
$@