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linux: Fix __NSIG_WORDS and add __NSIG_BYTES

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The __NSIG_WORDS value is based on minimum number of words to hold
the maximum number of signals supported by the architecture.

This patch also adds __NSIG_BYTES, which is the number of bytes
required to represent the supported number of signals.  It is used in
syscalls which takes a sigset_t.

Checked on x86_64-linux-gnu and i686-linux-gnu.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Adhemerval Zanella
2020-04-23 10:58:01 -03:00
parent f13d260190
commit f26d456b98
15 changed files with 42 additions and 27 deletions
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5
sysdeps/unix/sysv/linux/x86/setjmpP.h
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@ -21,6 +21,7 @@
#include <bits/types/__sigset_t.h>
#include <libc-pointer-arith.h>
#include <sigsetops.h>
/* <setjmp/setjmp.h> has
@ -113,11 +114,9 @@ typedef union
#include <signal.h>
#define _SIGPROCMASK_NSIG_WORDS (_NSIG / (8 * sizeof (unsigned long int)))
typedef struct
{
unsigned long int __val[_SIGPROCMASK_NSIG_WORDS];
unsigned long int __val[__NSIG_WORDS];
} __sigprocmask_sigset_t;
extern jmp_buf ___buf;