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https://git.musl-libc.org/git/musl
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d6c0efe106
on arm, the location of the saved-signal-mask flag and mask were off by one between sigsetjmp and siglongjmp, causing incorrect behavior restoring the signal mask. this is because the siglongjmp code assumed an extra slot was in the non-sig jmp_buf for the flag, but arm did not have this. now, the extra slot is removed for all archs since it was useless. also, arm eabi requires jmp_buf to have 8-byte alignment. we achieve that using long long as the type rather than with non-portable gcc attribute tags.
42 lines
687 B
C
42 lines
687 B
C
#ifndef _SETJMP_H
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#define _SETJMP_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <bits/setjmp.h>
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#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
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|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
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|| defined(_BSD_SOURCE)
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typedef struct {
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jmp_buf __jb;
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unsigned long __fl;
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unsigned long __ss[128];
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} sigjmp_buf[1];
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int sigsetjmp (sigjmp_buf, int);
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void siglongjmp (sigjmp_buf, int);
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#endif
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#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
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|| defined(_BSD_SOURCE)
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int _setjmp (jmp_buf);
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void _longjmp (jmp_buf, int);
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#endif
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int setjmp (jmp_buf);
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void longjmp (jmp_buf, int);
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#define setjmp setjmp
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#define longjmp longjmp
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#ifdef __cplusplus
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}
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#endif
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#endif
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