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Exclude routines from fortification
Since the _FORTIFY_SOURCE feature uses some routines of Glibc, they need to be excluded from the fortification. On top of that: - some tests explicitly verify that some level of fortification works appropriately, we therefore shouldn't modify the level set for them. - some objects need to be build with optimization disabled, which prevents _FORTIFY_SOURCE to be used for them. Assembler files that implement architecture specific versions of the fortified routines were not excluded from _FORTIFY_SOURCE as there is no C header included that would impact their behavior. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
This commit is contained in:
Frédéric Bérat
parent
64d9580cdf
commit
20c894d21e
@ -171,13 +171,13 @@ CFLAGS-recvfrom_chk.c += -fexceptions -fasynchronous-unwind-tables
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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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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 += -D_FORTIFY_SOURCE=1
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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 += -D_FORTIFY_SOURCE=1
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CPPFLAGS-tst-realpath-chk.c += -D_FORTIFY_SOURCE=2
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CPPFLAGS-tst-chk-cancel.c += -D_FORTIFY_SOURCE=2
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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 += $(no-fortify-source),-D_FORTIFY_SOURCE=2
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# _FORTIFY_SOURCE tests.
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# Auto-generate tests for _FORTIFY_SOURCE for different levels, compilers and
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@ -215,7 +215,7 @@ src-chk-nongnu = \#undef _GNU_SOURCE
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# cannot be disabled via pragmas, so require -Wno-error to be used.
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define gen-chk-test
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tests-$(1)-$(4)-chk += tst-fortify-$(1)-$(2)-$(3)-$(4)
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CFLAGS-tst-fortify-$(1)-$(2)-$(3)-$(4).$(1) += -D_FORTIFY_SOURCE=$(3) -Wno-format \
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CFLAGS-tst-fortify-$(1)-$(2)-$(3)-$(4).$(1) += $(no-fortify-source),-D_FORTIFY_SOURCE=$(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),$(4)))
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16
io/Makefile
16
io/Makefile
@ -149,6 +149,22 @@ routines := \
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write \
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# routines
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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getcwd \
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getwd \
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open \
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open64 \
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openat \
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openat64 \
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poll \
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ppoll \
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read \
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readlink \
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readlinkat \
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ttyname_r \
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# routines_no_fortify
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others := \
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pwd \
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# others
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@ -53,6 +53,21 @@ routines := \
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gen-as-const-headers += libio-macros.sym
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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fwprintf \
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iofgets \
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iofgets_u \
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iofgetws \
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iofgetws_u \
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swprintf \
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vasprintf \
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vsnprintf \
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vswprintf \
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vwprintf \
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wprintf \
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# routines_no_fortify
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tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \
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tst_wprintf2 tst-widetext test-fmemopen tst-ext tst-ext2 \
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tst-fgetws tst-ungetwc1 tst-ungetwc2 tst-swscanf tst-sscanf \
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@ -165,11 +180,15 @@ CFLAGS-iofgets_u.c += $(config-cflags-wno-ignored-attributes)
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CFLAGS-iofputs_u.c += $(config-cflags-wno-ignored-attributes)
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# XXX Do we need filedoalloc and wfiledoalloc? Others?
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# Prevent fortification as these are built with -O0
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CFLAGS-tst-bz24051.c += $(no-fortify-source)
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CFLAGS-tst-bz24153.c += $(no-fortify-source)
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CFLAGS-tst_putwc.c += -DOBJPFX=\"$(objpfx)\"
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# These test cases intentionally use overlapping arguments
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CFLAGS-tst-sprintf-ub.c += -Wno-restrict
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CFLAGS-tst-sprintf-chk-ub.c += -Wno-restrict
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CFLAGS-tst-sprintf-ub.c += -Wno-restrict $(no-fortify-source)
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CFLAGS-tst-sprintf-chk-ub.c += -Wno-restrict $(no-fortify-source)
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LDFLAGS-tst-bz24228 = -Wl,--version-script=tst-bz24228.map
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@ -66,6 +66,12 @@ include ../Rules
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CFLAGS-getpt.c += -fexceptions
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CFLAGS-getlogin_r.c += $(config-cflags-wno-ignored-attributes)
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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getlogin_r \
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ptsname_r \
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# routines_no_fortify
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ifeq (yesyes,$(have-fpie)$(build-shared))
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pt_chown-cflags += $(pie-ccflag)
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endif
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@ -205,6 +205,13 @@ routines := \
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writev \
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# routines
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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getdomain \
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gethostname \
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syslog \
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# routines_no_fortify
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generated += \
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tst-allocate_once-mem.out \
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tst-allocate_once.mtrace \
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@ -183,6 +183,14 @@ routines := \
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wordexp \
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# routines
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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confstr \
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getgroups \
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pread \
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pread64 \
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# routines_no_fortify
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aux := \
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environ \
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init-posix \
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@ -604,6 +612,9 @@ bug-glob1-ARGS = "$(objpfx)"
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tst-execvp3-ARGS = --test-dir=$(objpfx)
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CFLAGS-tst-spawn3.c += -DOBJPFX=\"$(objpfx)\"
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# Test voluntarily overflows struct dirent
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CFLAGS-bug-glob2.c += $(no-fortify-source)
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$(objpfx)testcases.h: TESTS TESTS2C.sed
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LC_ALL=C sed -f TESTS2C.sed < $< > $@T
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mv $@T $@
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@ -100,6 +100,11 @@ CFLAGS-aio_suspend.c += -fexceptions
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CFLAGS-mq_timedreceive.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-mq_timedsend.c += -fexceptions -fasynchronous-unwind-tables
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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mq_open \
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# routines_no_fortify
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LDFLAGS-rt.so = -Wl,--enable-new-dtags,-z,nodelete
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$(objpfx)librt.so: $(shared-thread-library)
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@ -38,4 +38,13 @@ gen-as-const-headers += jmp_buf-macros.sym
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include ../Rules
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# This test messes the stack on purpose, which triggers longjump fortify
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# failure
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CFLAGS-bug269-setjmp.c += $(no-fortify-source)
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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longjmp \
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# routines_no_fortify
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$(objpfx)tst-setjmp-fp: $(libm)
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@ -60,6 +60,12 @@ routines := \
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socketpair \
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# routines
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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recv \
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recvfrom \
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# routines_no_fortify
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tests := \
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tst-accept4 \
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tst-cmsg_cloexec \
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@ -117,6 +117,19 @@ routines := \
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wprintf_function_invoke \
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# routines
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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asprintf \
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dprintf \
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fprintf \
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printf \
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snprintf \
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sprintf \
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vfprintf \
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vfwprintf \
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vprintf \
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# routines_no_fortify
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aux := \
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errlist \
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errlist-data \
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@ -461,7 +474,7 @@ CFLAGS-tst-gets.c += -Wno-deprecated-declarations
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# BZ #11319 was first fixed for regular vdprintf, then reopened because
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# the fortified version had the same bug.
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CFLAGS-tst-bz11319-fortify2.c += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
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CFLAGS-tst-bz11319-fortify2.c += $(no-fortify-source),-D_FORTIFY_SOURCE=2
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CFLAGS-tst-memstream-string.c += -fno-builtin-fprintf
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@ -145,6 +145,13 @@ routines := \
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xpg_basename \
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# routines
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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mbstowcs \
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wcstombs \
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wctomb \
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# routines_no_fortify
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aux = \
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grouping \
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groupingwc \
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@ -118,6 +118,23 @@ routines := \
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xpg-strerror \
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# routines
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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explicit_bzero \
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memcpy \
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memmove \
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mempcpy \
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memset \
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stpcpy \
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stpncpy \
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strcat \
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strcpy \
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strlcat \
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strlcpy \
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strncat \
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strncpy \
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# routines_no_fortify
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tests := \
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bug-envz1 \
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bug-strcoll1 \
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@ -88,13 +88,19 @@ tests-internal += test-wprintf-ieee128 test-wprintf-ibm128
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CFLAGS-test-wprintf-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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CFLAGS-test-wprintf-ibm128.c += -mabi=ibmlongdouble -Wno-psabi
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# The following tests are setting _FORTIFY_SOURCE internally
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tests-internal += test-obstack-ieee128 test-obstack-ibm128
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CFLAGS-test-obstack-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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CFLAGS-test-obstack-ibm128.c += -mabi=ibmlongdouble -Wno-psabi
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CFLAGS-test-obstack-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi \
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$(no-fortify-source)
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CFLAGS-test-obstack-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
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$(no-fortify-source)
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# The following tests are setting _FORTIFY_SOURCE internally
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tests-internal += test-obstack-chk-ieee128 test-obstack-chk-ibm128
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CFLAGS-test-obstack-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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CFLAGS-test-obstack-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi
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CFLAGS-test-obstack-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi \
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$(no-fortify-source)
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CFLAGS-test-obstack-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
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$(no-fortify-source)
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tests-internal += test-scanf-ieee128 test-scanf-ibm128
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CFLAGS-test-scanf-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi -std=c89 -D_GNU_SOURCE
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@ -216,25 +222,37 @@ ldbl-extra-routines += asprintf_chk \
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obstack_chk \
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vobstack_chk
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# The following tests are setting _FORTIFY_SOURCE internally
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tests-internal += test-printf-chk-ieee128 test-printf-chk-ibm128
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CFLAGS-test-printf-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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CFLAGS-test-printf-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi
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CFLAGS-test-printf-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi \
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$(no-fortify-source)
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CFLAGS-test-printf-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
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$(no-fortify-source)
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# The following tests are setting _FORTIFY_SOURCE internally
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tests-internal += test-printf-chk-redir-ieee128 test-printf-chk-redir-ibm128
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CFLAGS-test-printf-chk-redir-ieee128.c += -mfloat128 -mabi=ieeelongdouble \
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-Wno-psabi -Wno-unused-result
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-Wno-psabi -Wno-unused-result \
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$(no-fortify-source)
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CFLAGS-test-printf-chk-redir-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
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-Wno-unused-result
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-Wno-unused-result \
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$(no-fortify-source)
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# The following tests are setting _FORTIFY_SOURCE internally
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tests-internal += test-wprintf-chk-ieee128 test-wprintf-chk-ibm128
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CFLAGS-test-wprintf-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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CFLAGS-test-wprintf-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi
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CFLAGS-test-wprintf-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi \
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$(no-fortify-source)
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CFLAGS-test-wprintf-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
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$(no-fortify-source)
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# The following tests are setting _FORTIFY_SOURCE internally
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tests-internal += test-wprintf-chk-redir-ieee128 test-wprintf-chk-redir-ibm128
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CFLAGS-test-wprintf-chk-redir-ieee128.c += -mfloat128 -mabi=ieeelongdouble \
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-Wno-psabi -Wno-unused-result
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-Wno-psabi -Wno-unused-result \
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$(no-fortify-source)
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CFLAGS-test-wprintf-chk-redir-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
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-Wno-unused-result
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-Wno-unused-result \
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$(no-fortify-source)
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endif
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ifeq ($(subdir),argp)
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@ -281,13 +299,19 @@ CFLAGS-tst-ieee128-error.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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CFLAGS-tst-ieee128-efgcvt.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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CFLAGS-tst-ieee128-errorfptr.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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# The following tests are setting _FORTIFY_SOURCE internally
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tests-container += test-syslog-ieee128 test-syslog-ibm128
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CFLAGS-test-syslog-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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CFLAGS-test-syslog-ibm128.c += -mabi=ibmlongdouble -Wno-psabi
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CFLAGS-test-syslog-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi \
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$(no-fortify-source)
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CFLAGS-test-syslog-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
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$(no-fortify-source)
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# The following tests are setting _FORTIFY_SOURCE internally
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tests-container += test-syslog-chk-ieee128 test-syslog-chk-ibm128
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CFLAGS-test-syslog-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
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CFLAGS-test-syslog-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi
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CFLAGS-test-syslog-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi \
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$(no-fortify-source)
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CFLAGS-test-syslog-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
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$(no-fortify-source)
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endif
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ifeq ($(subdir),stdlib)
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@ -395,6 +419,31 @@ endif
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# Add IEEE binary128 files as make targets.
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routines += $(foreach r,$(ldbl-extra-routines),ieee128-$(r))
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routines_no_fortify += \
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ieee128-asprintf \
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ieee128-dprintf \
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ieee128-fprintf \
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ieee128-fwprintf \
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ieee128-obstack \
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ieee128-printf \
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ieee128-snprintf \
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ieee128-sprintf \
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ieee128-swprintf \
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ieee128-syslog \
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ieee128-vasprintf \
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ieee128-vdprintf \
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ieee128-vfprintf \
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ieee128-vfwprintf \
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ieee128-vobstack \
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ieee128-vprintf \
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ieee128-vsnprintf \
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ieee128-vsprintf \
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ieee128-vswprintf \
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ieee128-vsyslog \
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ieee128-vwprintf \
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ieee128-wprintf \
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# routines_no_fortify
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# On powerpc64le, the routines responsible for converting between long
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# double and string (e.g.: printf, scanf, strtold, strfroml) default to
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# IBM long double mode. When support for TS 18661-3 was added, several
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@ -269,3 +269,32 @@ CFLAGS-tst-nldbl-wscanf-binary-gnu89.c += -mlong-double-64 -std=gnu89 \
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-DOBJPFX=\"$(objpfx)\"
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endif
|
||||
|
||||
routines_no_fortify += \
|
||||
nldbl-asprintf \
|
||||
nldbl-dprintf \
|
||||
nldbl-fprintf \
|
||||
nldbl-fwprintf \
|
||||
nldbl-obstack_printf \
|
||||
nldbl-obstack_vprintf \
|
||||
nldbl-printf \
|
||||
nldbl-snprintf \
|
||||
nldbl-sprintf \
|
||||
nldbl-swprintf \
|
||||
nldbl-syslog \
|
||||
nldbl-vasprintf \
|
||||
nldbl-vdprintf \
|
||||
nldbl-vfprintf \
|
||||
nldbl-vfwprintf \
|
||||
nldbl-vprintf \
|
||||
nldbl-vsnprintf \
|
||||
nldbl-vsprintf \
|
||||
nldbl-vswprintf \
|
||||
nldbl-vsyslog \
|
||||
nldbl-vwprintf \
|
||||
nldbl-wprintf \
|
||||
# routines_no_fortify
|
||||
|
||||
# We can't rely on Makeconfig here for whatever reason
|
||||
CFLAGS-.oS += $(call elide-fortify-source,.oS,$(routines_no_fortify))
|
||||
CFLAGS-.oS += $(call elide-fortify-source,_chk.oS,$(routines_no_fortify))
|
||||
|
||||
@ -304,6 +304,10 @@ tests-nolibpthread += \
|
||||
CFLAGS-tst-cleanup2.c += -fno-builtin
|
||||
CFLAGS-tst-cleanupx2.c += -fno-builtin
|
||||
|
||||
# Disable fortification due to sprintf(NULL,...)
|
||||
CFLAGS-tst-cleanup2.c += $(no-fortify-source)
|
||||
CFLAGS-tst-cleanupx2.c += $(no-fortify-source)
|
||||
|
||||
tests += \
|
||||
tst-cancelx2 \
|
||||
tst-cancelx3 \
|
||||
|
||||
@ -120,6 +120,9 @@ CFLAGS-sync_file_range.c = -fexceptions -fasynchronous-unwind-tables
|
||||
CFLAGS-pselect32.c = -fexceptions -fasynchronous-unwind-tables
|
||||
CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=(0x80000000-sysconf(_SC_PAGESIZE))"
|
||||
|
||||
# The test triggers FORTIFY abortion due to purposely wrong parameters
|
||||
CFLAGS-test-errno-linux.c += $(no-fortify-source)
|
||||
|
||||
sysdep_headers += \
|
||||
bits/a.out.h \
|
||||
bits/epoll.h \
|
||||
|
||||
@ -121,6 +121,27 @@ routines := \
|
||||
wmemset \
|
||||
# routines
|
||||
|
||||
# Exclude fortified routines from being built with _FORTIFY_SOURCE
|
||||
routines_no_fortify += \
|
||||
mbsnrtowcs \
|
||||
mbsrtowcs \
|
||||
wcpcpy \
|
||||
wcpncpy \
|
||||
wcrtomb \
|
||||
wcscat \
|
||||
wcscpy \
|
||||
wcslcat \
|
||||
wcslcpy \
|
||||
wcsncat \
|
||||
wcsncpy \
|
||||
wcsnrtombs \
|
||||
wcsrtombs \
|
||||
wmemcpy \
|
||||
wmemmove \
|
||||
wmempcpy \
|
||||
wmemset \
|
||||
# routines_no_fortify
|
||||
|
||||
tests := \
|
||||
test-c8rtomb \
|
||||
test-char-types \
|
||||
@ -231,7 +252,7 @@ CFLAGS-wcstod_l.c += $(strtox-CFLAGS) $(config-cflags-wno-ignored-attributes)
|
||||
CFLAGS-wcstold_l.c += $(strtox-CFLAGS) $(config-cflags-wno-ignored-attributes)
|
||||
CFLAGS-wcstof128_l.c += $(strtox-CFLAGS)
|
||||
CFLAGS-wcstof_l.c += $(strtox-CFLAGS) $(config-cflags-wno-ignored-attributes)
|
||||
CPPFLAGS-tst-wchar-h.c += -D_FORTIFY_SOURCE=2
|
||||
CPPFLAGS-tst-wchar-h.c += $(no-fortify-source),-D_FORTIFY_SOURCE=2
|
||||
|
||||
CFLAGS-wcschr.c += $(config-cflags-wno-ignored-attributes)
|
||||
CFLAGS-wmemchr.c += $(config-cflags-wno-ignored-attributes)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user