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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>
51 lines
1.5 KiB
Makefile
51 lines
1.5 KiB
Makefile
# Copyright (C) 1991-2023 Free Software Foundation, Inc.
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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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# Makefile for setjmp/longjmp routines
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#
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subdir := setjmp
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include ../Makeconfig
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headers := setjmp.h bits/setjmp.h bits/setjmp2.h \
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bits/types/struct___jmp_buf_tag.h
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routines := setjmp sigjmp bsd-setjmp bsd-_setjmp \
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longjmp __longjmp jmp-unwind
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tests := tst-setjmp jmpbug bug269-setjmp tst-setjmp-fp \
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tst-sigsetjmp tst-setjmp-static
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tests-static := tst-setjmp-static
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tests-internal := \
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tst-setjmp-check
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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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