2002-05-31 Jeff Johnston <jjohnstn@redhat.com>

        * libc/sys/linux/Makefile.am: Add sig.c and sigaction.c.  Also
        make siglist.inc dependent on sig.c instead of signal.c.
        * libc/sys/linux/Makefile.in: Regenerated.
        * libc/sys/linux/sig.c: Rename from signal.c and change code to
        use NSIG instead of _NSIG.
        * libc/sys/linux/sigaction.c: New file.
        * libc/sys/linux/signal.c: Changed to be linux signal() function
        so as to override regular newlib default signal.c.
        * libc/sys/linux/linuxthreads/config.h: Add __ASSUME_REALTIME_SIGNALS
        definition.
        * libc/sys/linux/linuxthreads/testrtsig.h: New file.
        * libc/sys/linux/machine/i386/Makefile.am: Remove sigset.c.
        * libc/sys/linux/machine/i386/Makefile.in: Regenerated.
        * libc/sys/linux/machine/i386/sigset.c: Moved to linux main directory.
        * libc/sys/linux/sigset.c: Moved from machine/i386 directory.
        * libc/sys/linux/sys/signal.h: Redefine NSIG to _NSIG and override
        default linux sigset_t typedef by defining it equal to __sigset_t.
        * libc/unix/sigset.c: Add check so code isn't compiled on systems
        with a sigset_t that isn't implemented with a single int.

1 files changed, 83 insertions, 0 deletions

diff --git a/newlib/libc/sys/linux/sig.c b/newlib/libc/sys/linux/sig.c
new file mode 100644
index 000000000..d083b1744
--- /dev/null
+++ b/newlib/libc/sys/linux/sig.c
@@ -0,0 +1,83 @@
+/* libc/sys/linux/signal.c - Signal handling functions */
+
+/* Written 2000 by Werner Almesberger */
+
+
+#include <signal.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <machine/syscall.h>
+
+/* avoid name space pollution */
+#define __NR___sgetmask __NR_sgetmask
+#define __NR___ssetmask __NR_ssetmask
+#define __NR___rt_sigtimedwait __NR_rt_sigtimedwait
+#define __NR___rt_sigpending __NR_rt_sigpending
+#define __NR___rt_sigprocmask __NR_rt_sigprocmask
+#define __NR___rt_sigsuspend __NR_rt_sigsuspend
+
+_syscall2(int,kill,pid_t,pid,int,sig)
+_syscall2(__sighandler_t,signal,int,signum,__sighandler_t,handler)
+_syscall0(int,pause)
+_syscall1(unsigned int,alarm,unsigned int,seconds)
+
+static _syscall0(int,__sgetmask)
+static _syscall1(int,__ssetmask,int,newmask)
+static _syscall2(int,__rt_sigpending,sigset_t *,set,size_t,size)
+static _syscall4(int,__rt_sigprocmask,int,how,const sigset_t *,set,sigset_t *,oldset,size_t,size)
+static _syscall2(int,__rt_sigsuspend,const sigset_t *,mask,size_t,size)
+static _syscall4(int,__rt_sigtimedwait,const sigset_t *,set,siginfo_t *,info,struct timespec *,timeout,size_t,size)
+
+int __sigsuspend (const sigset_t *mask)
+{
+    return __rt_sigsuspend(mask, NSIG/8);
+}
+weak_alias(__sigsuspend,sigsuspend)
+
+int sigsetmask(int newmask) /* BSD */
+{
+    return __ssetmask(newmask);
+}
+
+int sigmask(int signum) /* BSD */
+{
+    return 1 << signum;
+}
+
+int sigblock(int mask) /* BSD */
+{
+    return __ssetmask(mask | __sgetmask());
+}
+
+int __libc_raise(int sig)
+{
+    return kill(getpid(),sig);
+}
+weak_alias(__libc_raise,raise)
+
+int __sigpending(sigset_t *set)
+{
+  return __rt_sigpending(set, NSIG/8);
+}
+weak_alias(__sigpending,sigpending)
+
+int __sigprocmask (int how,const sigset_t *set,sigset_t *oldset)
+{
+  return __rt_sigprocmask(how, set, oldset, NSIG/8);
+}
+weak_alias(__sigprocmask,sigprocmask)
+
+int sigtimedwait(const sigset_t *set, siginfo_t *info,
+                 struct timespec *timeout)
+{
+  return __rt_sigtimedwait(set, info, timeout, NSIG/8);
+}
+
+int sigwaitinfo(const sigset_t *set, siginfo_t *info)
+{
+  return __rt_sigtimedwait(set, info, NULL, NSIG/8);
+}
+
+const char *const sys_siglist[] = {
+#include "siglist.inc"
+};