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| author | Florian Weimer <fweimer@redhat.com> | 2020-05-25 18:32:28 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2020-05-25 18:32:28 +0200 |
| commit | 02802fafcf6e11ea3f998f685035ffe568dfddeb (patch) | |
| tree | 2db187fc4bd2ef24a0c70c573b278a5e7ece62e5 /signal/signal.h | |
| parent | de42613540de8d3d70b5f14a14923cab7bd694d0 (diff) | |
| download | glibc-02802fafcf6e11ea3f998f685035ffe568dfddeb.tar.gz glibc-02802fafcf6e11ea3f998f685035ffe568dfddeb.tar.xz glibc-02802fafcf6e11ea3f998f685035ffe568dfddeb.zip | |
signal: Deprecate additional legacy signal handling functions
This needs a few test adjustments: In some cases, sigignore was used for convenience (replaced with xsignal with SIG_IGN). Tests for the deprecated functions need to disable -Wdeprecated-declarations, and for the sigmask deprecation, -Wno-error. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'signal/signal.h')
| -rw-r--r-- | signal/signal.h | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/signal/signal.h b/signal/signal.h index 40825e95ec..2c57f90e20 100644 --- a/signal/signal.h +++ b/signal/signal.h @@ -148,7 +148,8 @@ extern void psiginfo (const siginfo_t *__pinfo, const char *__s); #ifdef __USE_XOPEN_EXTENDED # ifdef __GNUC__ -extern int sigpause (int __sig) __asm__ ("__xpg_sigpause"); +extern int sigpause (int __sig) __asm__ ("__xpg_sigpause") + __attribute_deprecated_msg__ ("Use the sigsuspend function instead"); # else extern int __sigpause (int __sig_or_mask, int __is_sig); /* Remove a signal from the signal mask and suspend the process. */ @@ -164,7 +165,9 @@ extern int __sigpause (int __sig_or_mask, int __is_sig); simply do not work in many situations. Use `sigprocmask' instead. */ /* Compute mask for signal SIG. */ -# define sigmask(sig) ((int)(1u << ((sig) - 1))) +# define sigmask(sig) \ + __glibc_macro_warning ("sigmask is deprecated") \ + ((int)(1u << ((sig) - 1))) /* Block signals in MASK, returning the old mask. */ extern int sigblock (int __mask) __THROW __attribute_deprecated__; @@ -311,7 +314,8 @@ extern int sigreturn (struct sigcontext *__scp) __THROW; /* If INTERRUPT is nonzero, make signal SIG interrupt system calls (causing them to fail with EINTR); if INTERRUPT is zero, make system calls be restarted after signal SIG. */ -extern int siginterrupt (int __sig, int __interrupt) __THROW; +extern int siginterrupt (int __sig, int __interrupt) __THROW + __attribute_deprecated_msg__ ("Use sigaction with SA_RESTART instead"); # include <bits/sigstack.h> # include <bits/ss_flags.h> @@ -340,16 +344,21 @@ extern int sigstack (struct sigstack *__ss, struct sigstack *__oss) /* Simplified interface for signal management. */ /* Add SIG to the calling process' signal mask. */ -extern int sighold (int __sig) __THROW; +extern int sighold (int __sig) __THROW + __attribute_deprecated_msg__ ("Use the sigprocmask function instead"); /* Remove SIG from the calling process' signal mask. */ -extern int sigrelse (int __sig) __THROW; +extern int sigrelse (int __sig) __THROW + __attribute_deprecated_msg__ ("Use the sigprocmask function instead"); /* Set the disposition of SIG to SIG_IGN. */ -extern int sigignore (int __sig) __THROW; +extern int sigignore (int __sig) __THROW + __attribute_deprecated_msg__ ("Use the signal function instead"); /* Set the disposition of SIG. */ -extern __sighandler_t sigset (int __sig, __sighandler_t __disp) __THROW; +extern __sighandler_t sigset (int __sig, __sighandler_t __disp) __THROW + __attribute_deprecated_msg__ + ("Use the signal and sigprocmask functions instead"); #endif #if defined __USE_POSIX199506 || defined __USE_UNIX98 |