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19302b27bd
This patch fixes part of bug 26647 (-Werror=array-parameter error building with GCC 11 because of __sigsetjmp being declared using an array parameter in one header and a pointer parameter in another). The fix is to split the struct __jmp_buf_tag definition out to a separate bits/types/ header so it can be included in pthread.h, so that pthread.h can declare __sigsetjmp with the type contents visible, so can use an array (as in setjmp.h) rather than a pointer in the declaration. Note that several other build failures with GCC 11 remain. This does not fix the jmp_buf-related -Wstringop-overflow errors (also discussed in bug 26647), or -Warray-parameter errors for other functions (bug 26686), or -Warray-bounds errors (bug 26687). Tested, with older compilers, natively for x86_64 and with build-many-glibc.py for aarch64-linux-gnu. Tested with build-many-glibcs.py with GCC mainline for aarch64-linux-gnu that this gets past the -Warray-parameter issue for __sigsetjmp (with the next build failure being the other one discussed in bug 26647).
39 lines
1.2 KiB
Makefile
39 lines
1.2 KiB
Makefile
# Copyright (C) 1991-2020 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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include ../Rules
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$(objpfx)tst-setjmp-fp: $(libm)
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