19 files changed, 1175 insertions, 28 deletions

diff --git a/sysdeps/unix/sysv/linux/i386/sigaction.c b/sysdeps/unix/sysv/linux/i386/sigaction.c
index f3ecd4bd15..3f9d9463a0 100644
--- a/sysdeps/unix/sysv/linux/i386/sigaction.c
+++ b/sysdeps/unix/sysv/linux/i386/sigaction.c
@@ -1,42 +1,49 @@
 /* POSIX.1 `sigaction' call for Linux/i386.
-Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+   Copyright (C) 1991, 1995, 1996, 1997 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 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.
+   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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   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.  */
 
 #include <sysdep.h>
 #include <errno.h>
 #include <stddef.h>
 #include <signal.h>
 
+/* The difference here is that the sigaction structure used in the
+   kernel is not the same as we use in the libc.  Therefore we must
+   translate it here.  */
+#include <kernel_sigaction.h>
+
 
 /* If ACT is not NULL, change the action for SIG to *ACT.
    If OACT is not NULL, put the old action for SIG in *OACT.  */
 int
 __sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
 {
-  struct sigaction newact;
+  struct kernel_sigaction k_newact, k_oldact;
   int result;
 
   if (act)
     {
-      newact = *act;
-      newact.sa_restorer = ((act->sa_flags & SA_NOMASK)
-			    ? &&restore_nomask : &&restore);
-      act = &newact;
+      k_newact.sa_handler = act->sa_handler;
+      k_newact.sa_mask = act->sa_mask.__val[0];
+      k_newact.sa_flags = act->sa_flags;
+
+      k_newact.sa_restorer = ((act->sa_flags & SA_NOMASK)
+			      ? &&restore_nomask : &&restore);
     }
 
   asm volatile ("pushl %%ebx\n"
@@ -44,13 +51,23 @@ __sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
 		"int $0x80\n"
 		"popl %%ebx"
 		: "=a" (result)
-		: "0" (SYS_ify (sigaction)), "r" (sig), "c" (act), "d" (oact));
+		: "0" (SYS_ify (sigaction)), "r" (sig),
+		  "c" (act ? &k_newact : 0), "d" (oact ? &k_oldact : 0));
 
   if (result < 0)
     {
       __set_errno (-result);
       return -1;
     }
+
+  if (oact)
+    {
+      oact->sa_handler = k_oldact.sa_handler;
+      oact->sa_mask.__val[0] = k_oldact.sa_mask;
+      oact->sa_flags = k_oldact.sa_flags;
+      oact->sa_restorer = k_oldact.sa_restorer;
+    }
+
   return 0;
 
  restore:
diff --git a/sysdeps/unix/sysv/linux/netinet/in.h b/sysdeps/unix/sysv/linux/netinet/in.h
index 5b6cc78821..bbc625435c 100644
--- a/sysdeps/unix/sysv/linux/netinet/in.h
+++ b/sysdeps/unix/sysv/linux/netinet/in.h
@@ -127,13 +127,13 @@ struct in_addr
 /* Address to send to all hosts.  */
 #define	INADDR_BROADCAST	((unsigned) 0xffffffff)
 /* Address indicating an error return.  */
-#define	INADDR_NONE		0xffffffff
+#define	INADDR_NONE		((unsigned) 0xffffffff)
 
 /* Network number for local host loopback.  */
 #define	IN_LOOPBACKNET	127
 /* Address to loopback in software to local host.  */
 #ifndef INADDR_LOOPBACK
-#define	INADDR_LOOPBACK	0x7f000001	/* Internet address 127.0.0.1.  */
+#define	INADDR_LOOPBACK	((unsigned) 0x7f000001)	/* Inet address 127.0.0.1.  */
 #endif
 
 
diff --git a/sysdeps/unix/sysv/linux/poll.c b/sysdeps/unix/sysv/linux/poll.c
index 337b85005f..875c3b48f8 100644
--- a/sysdeps/unix/sysv/linux/poll.c
+++ b/sysdeps/unix/sysv/linux/poll.c
@@ -22,7 +22,9 @@
 
 extern int __syscall_poll __P ((struct pollfd *fds, unsigned int nfds,
 				int timeout));
-extern int __emulate_poll __P ((struct pollfd *fds, unsigned long int nfds,
+weak_extern (__syscall_poll)
+
+static int __emulate_poll __P ((struct pollfd *fds, unsigned long int nfds,
 				int timeout));
 
 /* The real implementation.  */
@@ -33,13 +35,17 @@ poll (fds, nfds, timeout)
      int timeout;
 {
   static int must_emulate = 0;
+  int (*syscall) __P ((struct pollfd *, unsigned int, int)) = __syscall_poll;
 
   if (!must_emulate)
     {
-      int retval = __syscall_poll (fds, nfds, timeout);
+      if (syscall)
+	{
+	  int retval = __syscall_poll (fds, nfds, timeout);
 
-      if (retval >= 0 || errno != ENOSYS)
-	return retval;
+	  if (retval >= 0 || errno != ENOSYS)
+	    return retval;
+	}
 
       must_emulate = 1;
     }
@@ -49,5 +55,5 @@ poll (fds, nfds, timeout)
 
 
 /* Get the emulation code.  */
-#define poll(fds, nfds, timeout) __emulate_poll (fds, nfds, timeout)
+#define poll(fds, nfds, timeout) static __emulate_poll (fds, nfds, timeout)
 #include <sysdeps/unix/bsd/poll.c>
diff --git a/sysdeps/unix/sysv/linux/powerpc/Dist b/sysdeps/unix/sysv/linux/powerpc/Dist
new file mode 100644
index 0000000000..3df65c325c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/Dist
@@ -0,0 +1,4 @@
+clone.S
+ioctl-types.h
+termbits.h
+termios.h
diff --git a/sysdeps/unix/sysv/linux/powerpc/_exit.S b/sysdeps/unix/sysv/linux/powerpc/_exit.S
new file mode 100644
index 0000000000..a1ca375d54
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/_exit.S
@@ -0,0 +1,26 @@
+/* Copyright (C) 1995, 1996, 1997 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.  */
+
+#include <sysdep.h>
+
+/* The 'exit' syscall does not return.  */
+
+	.text
+ENTRY(_exit)
+	DO_CALL (SYS_ify (exit))
+PSEUDO_END (_exit)
diff --git a/sysdeps/unix/sysv/linux/powerpc/brk.c b/sysdeps/unix/sysv/linux/powerpc/brk.c
new file mode 100644
index 0000000000..e9826bd098
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/brk.c
@@ -0,0 +1,47 @@
+/* brk system call for Linux/ppc.
+   Copyright (C) 1995, 1996, 1997 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.  */
+
+#include <sysdep.h>
+#include <errno.h>
+
+void *__curbrk;
+
+int
+__brk (void *addr)
+{
+  register void *syscall_arg asm ("r3") = addr;
+  register int syscall_number asm ("r0") = SYS_ify (brk);
+  register void *newbrk asm ("r3");
+  asm ("sc"
+       : "=r" (newbrk)
+       : "r" (syscall_arg), "r" (syscall_number)
+       : "r4","r5","r6","r7","r8","r9","r10","r11","r12",
+         "ctr", "mq", "cr0", "cr1", "cr6", "cr7");
+
+  __curbrk = newbrk;
+
+  if (newbrk < addr)
+    {
+      __set_errno (ENOMEM);
+      return -1;
+    }
+
+  return 0;
+}
+weak_alias (__brk, brk)
diff --git a/sysdeps/unix/sysv/linux/powerpc/clone.S b/sysdeps/unix/sysv/linux/powerpc/clone.S
new file mode 100644
index 0000000000..e5fa16d8c5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/clone.S
@@ -0,0 +1,74 @@
+/* Wrapper around clone system call.
+   Copyright (C) 1997 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.  */
+
+#include <sysdep.h>
+#define _ERRNO_H	1
+#include <errnos.h>
+
+/* This is the only really unusual system call in PPC linux, but not
+   because of any weirdness in the system call itself; because of
+   all the freaky stuff we have to do to make the call useful.  */
+
+/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
+
+ENTRY(clone)
+	/* Set up stack frame, save registers.  */
+	stwu 1,-20(1)
+	stw 31,16(1)
+
+	/* Check for child_stack == NULL, fn == NULL.  */
+	mr. 31,4
+	cmpwi 1,3,0
+	cror 2+0*4,2+0*4,2+1*4
+	beq- 0,badargs
+
+	/* Save 'fn' and its argument on the new stack.  */
+	stw 3,0(4)
+	stw 6,4(4)
+
+	/* 'flags' argument is (only) parameter to clone syscall.  */
+	mr 3,5
+
+	/* Do the call.  */
+	DO_CALL(SYS_ify(clone))
+	bso- error
+	beq child
+
+	/* Parent.  Restore registers & return.  */
+	lwz 31,20(1)
+	addi 1,1,20
+	blr
+
+child:
+	/* Get address of procedure to call.  */
+	lwz 0,0(31)
+	/* Set up argument register.  */
+	lwz 3,4(31)
+	mtlr 0
+	/* Switch to new stack.  */
+	mr 1,31
+	/* Call procedure.  */
+	blrl
+	/* Call _exit with result from procedure.  */
+	DO_CALL (SYS_ify (exit))
+
+badargs:
+	li 3,-EINVAL
+error:
+	b __syscall_error
diff --git a/sysdeps/unix/sysv/linux/powerpc/init-first.h b/sysdeps/unix/sysv/linux/powerpc/init-first.h
new file mode 100644
index 0000000000..df702380fa
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/init-first.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 1997 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.  */
+
+/* The job of this fragment it to find argc and friends for INIT.
+   They are passed to this routine by either the program loader
+   code in start.c, or by by dlopen.*/
+
+#define SYSDEP_CALL_INIT(NAME, INIT)					      \
+void NAME (int argc, char **argv, char **envp)				      \
+{									      \
+  INIT (argc, argv, envp);						      \
+}
diff --git a/sysdeps/unix/sysv/linux/powerpc/ioctl-types.h b/sysdeps/unix/sysv/linux/powerpc/ioctl-types.h
new file mode 100644
index 0000000000..9e2695652e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/ioctl-types.h
@@ -0,0 +1 @@
+#include <termios.h>
diff --git a/sysdeps/unix/sysv/linux/powerpc/profil.c b/sysdeps/unix/sysv/linux/powerpc/profil.c
new file mode 100644
index 0000000000..6ab8065da3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/profil.c
@@ -0,0 +1,2 @@
+/* For now.  */
+#include <sysdeps/stub/profil.c>
diff --git a/sysdeps/unix/sysv/linux/powerpc/sigreturn.S b/sysdeps/unix/sysv/linux/powerpc/sigreturn.S
new file mode 100644
index 0000000000..748c26761f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/sigreturn.S
@@ -0,0 +1,26 @@
+/* Copyright (C) 1995, 1996, 1997 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.  */
+
+#include <sysdep.h>
+
+/* The 'sigreturn' syscall does not return.  */
+
+	.text
+ENTRY(__sigreturn)
+	DO_CALL(SYS_ify(sigreturn))
+PSEUDO_END (__sigreturn)
diff --git a/sysdeps/unix/sysv/linux/powerpc/socket.S b/sysdeps/unix/sysv/linux/powerpc/socket.S
new file mode 100644
index 0000000000..32bb8f64cd
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/socket.S
@@ -0,0 +1,83 @@
+/* Copyright (C) 1995, 1996, 1997 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.  */
+
+#include <sysdep.h>
+#include <sys/socketcall.h>
+
+#define P(a, b) P2(a, b)
+#define P2(a, b) a##b
+
+/* The socket-oriented system calls are handled unusally in Linux.
+   They are all gated through the single `socketcall' system call number.
+   `socketcall' takes two arguments: the first is the subcode, specifying
+   which socket function is being called; and the second is a pointer to
+   the arguments to the specific function.
+
+   The .S files for the other calls just #define socket and #include this.
+   They also #define a 'number-of-arguments' word in NARGS, which
+   defaults to 3.  */
+
+#ifndef NARGS
+#ifdef socket
+#error NARGS not defined
+#endif
+#define NARGS 3
+#endif
+
+#define stackblock 20
+
+	.text
+ENTRY(P(__,socket))
+	stwu 1,-48(1)
+#if NARGS >= 1
+	stw 3,stackblock(1)
+#endif
+#if NARGS >= 2
+	stw 4,4+stackblock(1)
+#endif
+#if NARGS >= 3
+	stw 5,8+stackblock(1)
+#endif
+#if NARGS >= 4
+	stw 6,12+stackblock(1)
+#endif
+#if NARGS >= 5
+	stw 7,16+stackblock(1)
+#endif
+#if NARGS >= 6
+	stw 8,20+stackblock(1)
+#endif
+#if NARGS >= 7
+	stw 9,24+stackblock(1)
+#endif
+#if NARGS >= 8
+	stw 10,28+stackblock(1)
+#endif
+#if NARGS >= 9
+#error too many arguments!
+#endif
+	li 3,P(SOCKOP_,socket)
+	addi 4,1,stackblock
+	DO_CALL(SYS_ify(socketcall))
+	addi 1,1,48
+	bnslr
+	b __syscall_error
+
+PSEUDO_END (P(__,socket))
+
+weak_alias (P(__,socket), socket)
diff --git a/sysdeps/unix/sysv/linux/powerpc/syscall.S b/sysdeps/unix/sysv/linux/powerpc/syscall.S
new file mode 100644
index 0000000000..9b3f66682e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/syscall.S
@@ -0,0 +1,32 @@
+/* Copyright (C) 1991, 1992, 1997 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.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY (syscall)
+	mr	0,3
+	mr	3,4
+	mr	4,5
+	mr	5,6
+	mr	6,7
+	mr	7,8
+	sc
+	bnslr
+	b __syscall_error
+PSEUDO_END (syscall)
diff --git a/sysdeps/unix/sysv/linux/powerpc/syscall.h b/sysdeps/unix/sysv/linux/powerpc/syscall.h
new file mode 100644
index 0000000000..c6bac3de5b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/syscall.h
@@ -0,0 +1,357 @@
+/* Copyright (C) 1997 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
+