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-rw-r--r--ChangeLog9
-rw-r--r--sysdeps/unix/sysv/linux/alpha/bits/sigstack.h55
-rw-r--r--sysdeps/unix/sysv/linux/bits/sigstack.h16
-rw-r--r--sysdeps/unix/sysv/linux/syscalls.list2
4 files changed, 82 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 78d00ae..09e12a0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+1998-06-10 Ulrich Drepper <drepper@cygnus.com>
+
+ * sysdeps/unix/sysv/linux/syscalls.list: Add sigaltstack and
+ sigstack.
+
+ * sysdeps/unix/sysv/linux/bits/sigstack.h: Add definitions of
+ SS_ONSTACK, SS_DISABLE, MINSIGSTKSZ and SIGSTKSZ.
+ * sysdeps/unix/sysv/linux/alpha/bits/sigstack.h: New file.
+
1998-06-08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/i386/dl-machine.h (_dl_start_user): Store stack address
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/sigstack.h b/sysdeps/unix/sysv/linux/alpha/bits/sigstack.h
new file mode 100644
index 0000000..bc993d1
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/bits/sigstack.h
@@ -0,0 +1,55 @@
+/* sigstack, sigaltstack definitions.
+ Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _SIGNAL_H
+# error "Never include this file directly. Use <signal.h> instead"
+#endif
+
+
+/* Structure describing a signal stack (obsolete). */
+struct sigstack
+ {
+ __ptr_t ss_sp; /* Signal stack pointer. */
+ int ss_onstack; /* Nonzero if executing on this stack. */
+ };
+
+
+/* Possible values for `ss_flags.'. */
+enum
+{
+ SS_ONSTACK = 1,
+#define SS_ONSTACK SS_ONSTACK
+ SS_DISABLE
+#define SS_DISABLE SS_DISABLE
+};
+
+/* Minimum stack size for a signal handler. */
+#define MINSIGSTKSZ 4096
+
+/* System default stack size. */
+#define SIGSTKSZ 16384
+
+
+/* Alternate, preferred interface. */
+typedef struct sigaltstack
+ {
+ __ptr_t ss_sp;
+ int ss_flags;
+ size_t ss_size;
+ } stack_t;
diff --git a/sysdeps/unix/sysv/linux/bits/sigstack.h b/sysdeps/unix/sysv/linux/bits/sigstack.h
index a864738..905e87f 100644
--- a/sysdeps/unix/sysv/linux/bits/sigstack.h
+++ b/sysdeps/unix/sysv/linux/bits/sigstack.h
@@ -30,6 +30,22 @@ struct sigstack
};
+/* Possible values for `ss_flags.'. */
+enum
+{
+ SS_ONSTACK = 1,
+#define SS_ONSTACK SS_ONSTACK
+ SS_DISABLE
+#define SS_DISABLE SS_DISABLE
+};
+
+/* Minimum stack size for a signal handler. */
+#define MINSIGSTKSZ 2048
+
+/* System default stack size. */
+#define SIGSTKSZ 8192
+
+
/* Alternate, preferred interface. */
typedef struct sigaltstack
{
diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list
index f606ed1..739e29c 100644
--- a/sysdeps/unix/sysv/linux/syscalls.list
+++ b/sysdeps/unix/sysv/linux/syscalls.list
@@ -72,6 +72,8 @@ setfsuid EXTRA setfsuid 1 setfsuid
setpgid - setpgid 2 __setpgid setpgid
setresgid EXTRA setresgid 3 setresgid
setresuid EXTRA setresuid 3 setresuid
+sigaltstack - sigaltstack 2 sigaltstack
+sigstack - sigstack 2 sigstack
sys_fstat fxstat fstat 2 __syscall_fstat
sys_lstat lxstat lstat 2 __syscall_lstat
sys_mknod xmknod mknod 3 __syscall_mknod