update from main archive 970120cvs/libc-970121

Tue Jan 21 04:05:20 1997  Ulrich Drepper  <drepper@cygnus.com>

	* version.h (VERSION): Bump to 1.101.

	Implement -d and -r option to `ldd' to check relocations.
	* elf/dl-error.c: Add another method to intercept errors.
	(_dl_receive_error): New function.  Install user defined handler.
	(receiver): New variable.  Contains pointer to user provided handler.
	(_dl_signal_error): If user provided handler is installed call this.
	* elf/dl-load.c (_dl_map_object): When shared object is not found in
	trace mode initialize a few more fields so that lookup can actually
	happen but always fails.
	* elf/ldd.sh.in: Rewrite argument handling.  Recognize new arguments
	to trigger reloation test.  Return with appropriate error code if
	a file wasn't found.  Print warning if object is not executable.
	* elf/ldd.bash.in: Likewise.
	* elf/link.h (receiver_fct): New type.  Used in _dl_receive_error.
	(_dl_sysdep_error): New prototype.
	(_dl_receive_error): New prototype.
	(_dl_signal_error): Remove  __attribute__ ((__noreturn__)).
	* elf/rtld.c (dl_main): Rewrite argument handling.  More than
	one argument allowed.  Recognize --data-relocs and --function-relocs
	arguments.
	Don't determine `lazy' mode from LD_BIND_NOW environment variable
	when in trace mode.
	If in trace mode and either --data-relocs or --function-relocs is
	given perform relocation.  Report errors using print_unresolved
	function.
	(print_unresolved): New function.  Print information about missing
	symbol on stderr.
	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_error): New function.
	Like _dl_sysdep_message but print to stderr.
	* sysdeps/mach/hurd/dl-sysdep.c: Likewise.

	* sysdeps/generic/sockaddrcom.h: Add definition of sa_family_t.
	Reported by Andreas Schwab.
	(__SOCKADDR_COMMON): Use sa_family_t for family member.
	* sysdeps/unix/bsd/bsd4.4/sockaddrcom.h: Likewise.

	Linux/Sparc support by Miguel de Icaza.
	* sysdeps/sparc/fpu_control.h: New file.
	* sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S: New file.
	* sysdeps/unix/sysv/linux/sparc/brk.c: New file.
	* sysdeps/unix/sysv/linux/sparc/profil-counter.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sigaction.c: New file.
	* sysdeps/unix/sysv/linux/sparc/socket.S: New file.
	* sysdeps/unix/sysv/linux/sparc/syscall.S: New file.
	* sysdeps/unix/sysv/linux/sparc/sysdep.h: New file.
	* sysdeps/unix/sysv/linux/sparc/Dist: New file.
	* sysdeps/unix/sysv/linux/sparc/Makefile: New file.

	* sysdeps/unix/sysv/linux/net/if_arp.h: Don't use kernel header.
	Provide own definition based on 4.4BSD and Linux.
	* sysdeps/unix/sysv/linux/net/ppp_defs.h: Define __u32 before
	including <linux/ppp_defs.h>.
	* sysdeps/unix/sysv/linux/sys/msq_buf.h (struct msqid_ds): Don't
	use __pid_t since the kernel might have a different size.
	* sysdeps/unix/sysv/linux/sys/shm_buf.h (struct shmid_ds): Likewise.
	Reported by Andreas Schwab.

	* time/asctime.c: Update copyright.
	* time/dysize.c: Likewise.
	* time/gmtime.c: Likewise.
	* time/timegm.c: Likewise.
	* time/offtime.c: Likewise.  De-ANSI-declfy.

	* time/tzset.c (__tzset_internal): When TZ envvar does not name a
	DST timezone don't default to offset -1.

	* sysdeps/unix/sysv/linux/net/route.h: Don't use kernel header.
	Reported by a sun <asun@zoology.washington.edu>.

	* resolv/Makefile: Correct spelling: subdirs-dirs -> subdir-dirs.

	* sysdeps/stub/sysv_signal.c: New file.  Stub implementation.

	* Makefile (distribute): Add mcheck.h.

	* nis/Makefile (distribute): Add nss-nis.h.

	* libio/Makefile (routines): Change vdprintf to iovdprintf to prevent
	dist problem.

	* nss/Makefile (distribute): Add digits_dots.c.

	* sysdeps/unix/sysv/linux/Dist: Add kernel_sigaction.h.
	* sysdeps/unix/sysv/linux/alpha/Dist: Add sys/procfs.h.
	* sysdeps/unix/sysv/linux/sparc/Dist: Add clone.S.
	* new-malloc/Makefile (distribute): Add mcheck-init.c and mcheck.h.

Mon Jan 20 17:54:28 1997  Sven Verdoolaege  <skimo@breughel.ufsia.ac.be>

	* manual/filesys.texi: Fix little problem (reentrant->readdir).

Fri Jan 17 19:07:07 1997  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* configure.in [$elf=yes]: Check for support of .previous and
	.popsection in the assembler.
	* config.h.in: Add HAVE_ASM_PREVIOUS_DIRECTIVE and
	HAVE_ASM_POPSECTION_DIRECTIVE.
	* libc-symbols.h (__make_section_unallocated) [HAVE_ELF]: Define
	appropriate if either .previous or .popsection is supported.
	(libc_warning) [HAVE_ELF]: Use it here.

Sat Jan 18 22:15:26 1997  Richard Henderson  <rth@tamu.edu>

	* Makeconfig (CFLAGS-.so): Add -fno-common to prevent odd sorts of
	errors that can occur when linking libc.so.

Mon Jan 20 05:20:49 1997  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-load.c (open_path): When running setuid don't try
	a directory if it is not given with the full name.

	* elf/Makefile (before-compile): New variable.  Mention trusted-dirs.h.
	(trusted-dirs.h): Construct file from $(default-rpath) and
	$(user-defined-trusted-dirs) variables.
	* elf/dl-load.c (_dl_map_object): Pass additional argument to open_path
	which is NULL except for the LD_LIBRARY_PATH pass in which case it
	is a pointer to the list of directories from the trusted-dirs.h
	file.
	(open_path): Accept additional argument with list of trusted dirs.
	When running setuid and a list of trusted dirs is given only use
	those which are mentioned in the list.

	* elf/rtld.c (dl_main): Don't reject whole LD_LIBRARY_PATH when
	running setuid.  Instead accept entries which do not contain a '/'.

	* Makeconfig: Correct comment about +(default_cflags).

Mon Jan 20 05:11:14 1997  Hrvoje Niksic  <hniksic@srce.hr>

	* time/strptime.c (recursive): Use && not || to test for valid
	argument.

Mon Jan 20 05:06:50 1997  Ulrich Drepper  <drepper@cygnus.com>

	* elf/ldd.sh.in: Exit with value 1 if an error occured.
	* elf/ldd.bash.in: Likewise.

	* elf/rtld.c (dl_main): Do not always ignore LD_PRELOAD when the
	binary runs setuid.  It is save to use those entries which do not
	contain a '/'.  This is compatible with Solaris-2.

17 files changed, 796 insertions, 10 deletions

diff --git a/sysdeps/unix/bsd/bsd4.4/sockaddrcom.h b/sysdeps/unix/bsd/bsd4.4/sockaddrcom.h
index a99573c6ee..87da37df90 100644
--- a/sysdeps/unix/bsd/bsd4.4/sockaddrcom.h
+++ b/sysdeps/unix/bsd/bsd4.4/sockaddrcom.h
@@ -1,5 +1,5 @@
 /* Definition of `struct sockaddr_*' common members.  4.4 BSD version.
-   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+   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
@@ -21,13 +21,16 @@
 #define _SOCKADDRCOM_H	1
 
 
+/* POSIX.1g specifies this type name for the `sa_family' member.  */
+typedef unsigned char sa_family_t;
+
 /* This macro is used to declare the initial common members
    of the data types used for socket addresses, `struct sockaddr',
    `struct sockaddr_in', `struct sockaddr_un', etc.  */
 
 #define	__SOCKADDR_COMMON(sa_prefix)	\
   unsigned char sa_prefix##len;		\
-  unsigned char sa_prefix##family
+  sa_family_t sa_prefix##family
 
 #define __SOCKADDR_COMMON_SIZE	(2 * sizeof (unsigned char))
 
diff --git a/sysdeps/unix/sysv/linux/Dist b/sysdeps/unix/sysv/linux/Dist
index 766d96a110..b96d1dfcf6 100644
--- a/sysdeps/unix/sysv/linux/Dist
+++ b/sysdeps/unix/sysv/linux/Dist
@@ -1,4 +1,5 @@
 init-first.h
+kernel_sigaction.h
 kernel_termios.h
 llseek.c
 siglist.h
diff --git a/sysdeps/unix/sysv/linux/alpha/Dist b/sysdeps/unix/sysv/linux/alpha/Dist
index a15f181ff6..368b49066d 100644
--- a/sysdeps/unix/sysv/linux/alpha/Dist
+++ b/sysdeps/unix/sysv/linux/alpha/Dist
@@ -6,3 +6,4 @@ clone.S
 sys/io.h
 kernel_termios.h
 sys/acct.h
+sys/procfs.h
diff --git a/sysdeps/unix/sysv/linux/net/if_arp.h b/sysdeps/unix/sysv/linux/net/if_arp.h
index a25f1b4759..ae0e799fb6 100644
--- a/sysdeps/unix/sysv/linux/net/if_arp.h
+++ b/sysdeps/unix/sysv/linux/net/if_arp.h
@@ -1 +1,146 @@
-#include <linux/if_arp.h>
+/* Definitions for Address Resolution Protocol.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   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.  */
+
+/* Based on the 4.4BSD and Linux version of this file.  */
+
+#ifndef _NET_IF_ARP_H
+
+#define _NET_IF_ARP_H 1
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+
+__BEGIN_DECLS
+
+/* This structure defines an ethernet arp header.  */
+
+/* ARP protocol opcodes. */
+#define	ARPOP_REQUEST	1		/* ARP request.  */
+#define	ARPOP_REPLY	2		/* ARP reply.  */
+#define	ARPOP_RREQUEST	3		/* RARP request.  */
+#define	ARPOP_RREPLY	4		/* RARP reply.  */
+
+/* See RFC 826 for protocol description.  ARP packets are variable
+   in size; the arphdr structure defines the fixed-length portion.
+   Protocol type values are the same as those for 10 Mb/s Ethernet.
+   It is followed by the variable-sized fields ar_sha, arp_spa,
+   arp_tha and arp_tpa in that order, according to the lengths
+   specified.  Field names used correspond to RFC 826.  */
+
+struct arphdr
+  {
+    unsigned short int ar_hrd;		/* Format of hardware address.  */
+    unsigned short int ar_pro;		/* Format of protocol address.  */
+    unsigned char ar_hln;		/* Length of hardware address.  */
+    unsigned char ar_pln;		/* Length of protocol address.  */
+    unsigned short int ar_op;		/* ARP opcode (command).  */
+#if 0
+    /* Ethernet looks like this : This bit is variable sized
+       however...  */
+    unsigned char __ar_sha[ETH_ALEN];	/* Sender hardware address.  */
+    unsigned char __ar_sip[4];		/* Sender IP address.  */
+    unsigned char __ar_tha[ETH_ALEN];	/* Target hardware address.  */
+    unsigned char __ar_tip[4];		/* Target IP address.  */
+#endif
+  };
+
+
+/* ARP protocol HARDWARE identifiers. */
+#define ARPHRD_NETROM	0		/* From KA9Q: NET/ROM pseudo. */
+#define ARPHRD_ETHER 	1		/* Ethernet 10Mbps.  */
+#define	ARPHRD_EETHER	2		/* Experimental Ethernet.  */
+#define	ARPHRD_AX25	3		/* AX.25 Level 2.  */
+#define	ARPHRD_PRONET	4		/* PROnet token ring.  */
+#define	ARPHRD_CHAOS	5		/* Chaosnet.  */
+#define	ARPHRD_IEEE802	6		/* IEEE 802.2 Ethernet/TR/TB.  */
+#define	ARPHRD_ARCNET	7		/* ARCnet.  */
+#define	ARPHRD_APPLETLK	8		/* APPLEtalk.  */
+#define ARPHRD_DLCI	15		/* Frame Relay DLCI.  */
+#define ARPHRD_METRICOM	23		/* Metricom STRIP (new IANA id).  */
+
+/* Dummy types for non ARP hardware */
+#define ARPHRD_SLIP	256
+#define ARPHRD_CSLIP	257
+#define ARPHRD_SLIP6	258
+#define ARPHRD_CSLIP6	259
+#define ARPHRD_RSRVD	260		/* Notional KISS type.  */
+#define ARPHRD_ADAPT	264
+#define ARPHRD_ROSE	270
+#define ARPHRD_X25	271		/* CCITT X.25.  */
+#define ARPHRD_PPP	512
+
+#define ARPHRD_TUNNEL	768		/* IPIP tunnel.  */
+#define ARPHRD_TUNNEL6	769		/* IPIP6 tunnel.  */
+#define ARPHRD_FRAD	770             /* Frame Relay Access Device.  */
+#define ARPHRD_SKIP	771		/* SKIP vif.  */
+#define ARPHRD_LOOPBACK	772		/* Loopback device.  */
+#define ARPHRD_LOCALTLK 773		/* Localtalk device.  */
+#define ARPHRD_FDDI	774		/* Fiber Distributed Data Interface. */
+#define ARPHRD_BIF      775             /* AP1000 BIF.  */
+#define ARPHRD_SIT	776		/* sit0 device - IPv6-in-IPv4.  */
+
+
+/* ARP ioctl request.  */
+struct arpreq
+  {
+    struct sockaddr arp_pa;		/* Protocol address.  */
+    struct sockaddr arp_ha;		/* Hardware address.  */
+    int arp_flags;			/* Flags.  */
+    struct sockaddr arp_netmask;	/* Netmask (only for proxy arps).  */
+    char arp_dev[16];
+  };
+
+struct arpreq_old
+  {
+    struct sockaddr arp_pa;		/* Protocol address.  */
+    struct sockaddr arp_ha;		/* Hardware address.  */
+    int arp_flags;			/* Flags.  */
+    struct sockaddr arp_netmask;	/* Netmask (only for proxy arps).  */
+  };
+
+/* ARP Flag values.  */
+#define ATF_COM		0x02		/* Completed entry (ha valid).  */
+#define	ATF_PERM	0x04		/* Permanent entry.  */
+#define	ATF_PUBL	0x08		/* Publish entry.  */
+#define	ATF_USETRAILERS	0x10		/* Has requested trailers.  */
+#define ATF_NETMASK     0x20            /* Want to use a netmask (only
+					   for proxy entries).  */
+#define ATF_DONTPUB	0x40		/* Don't answer this addresses.  */
+#define ATF_MAGIC	0x80		/* Automatically added entry.  */
+
+
+/* Support for the user space arp daemon, arpd.  */
+#define ARPD_UPDATE	0x01
+#define ARPD_LOOKUP	0x02
+#define ARPD_FLUSH	0x03
+
+struct arpd_request
+  {
+    unsigned short int req;		/* Request type.  */
+    u_int32_t ip;			/* IP address of entry.  */
+    unsigned long int dev;		/* Device entry is tied to.  */
+    unsigned long int stamp;
+    unsigned long int updated;
+    unsigned char ha[MAX_ADDR_LEN];	/* Hardware address.  */
+  };
+
+__END_DECLS
+
+#endif	/* net/if_arp.h */
diff --git a/sysdeps/unix/sysv/linux/net/ppp_defs.h b/sysdeps/unix/sysv/linux/net/ppp_defs.h
index e51dba7dea..21a33b20a3 100644
--- a/sysdeps/unix/sysv/linux/net/ppp_defs.h
+++ b/sysdeps/unix/sysv/linux/net/ppp_defs.h
@@ -1 +1,3 @@
+#include <sys/types.h>
+typedef u_int32_t __u32;
 #include <linux/ppp_defs.h>
diff --git a/sysdeps/unix/sysv/linux/net/route.h b/sysdeps/unix/sysv/linux/net/route.h
index a60df24c0a..531b069d12 100644
--- a/sysdeps/unix/sysv/linux/net/route.h
+++ b/sysdeps/unix/sysv/linux/net/route.h
@@ -1 +1,125 @@
-#include <linux/route.h>
+/* 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.  */
+
+/* Based on the 4.4BSD and Linux version of this file.  */
+
+#ifndef _NET_ROUTE_H
+
+#define _NET_ROUTE_H	1
+#include <features.h>
+
+#include <sys/socket.h>
+#include <sys/types.h>
+
+
+/* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */
+struct rtentry
+  {
+    unsigned long int rt_pad1;
+    struct sockaddr rt_dst;		/* Target address.  */
+    struct sockaddr rt_gateway;		/* Gateway addr (RTF_GATEWAY).  */
+    struct sockaddr rt_genmask;		/* Target network mask (IP).  */
+    unsigned short int rt_flags;
+    short int rt_pad2;
+    unsigned long int rt_pad3;
+    unsigned char rt_tos;
+    unsigned char rt_class;
+    short int rt_pad4;
+    short int rt_metric;		/* +1 for binary compatibility!  */
+    char *rt_dev;			/* Forcing the device at add.  */
+    unsigned long int rt_mtu;		/* Per route MTU/Window.  */
+    unsigned long int rt_window;	/* Window clamping.  */
+    unsigned short int rt_irtt;		/* Initial RTT.  */
+  };
+/* Compatibility hack.  */
+#define rt_mss	rt_mtu
+
+
+#define	RTF_UP		0x0001		/* Route usable.  */
+#define	RTF_GATEWAY	0x0002		/* Destination is a gateway.  */
+
+#define	RTF_HOST	0x0004		/* Host entry (net otherwise).  */
+#define RTF_REINSTATE	0x0008		/* Reinstate route after timeout.  */
+#define	RTF_DYNAMIC	0x0010		/* Created dyn. (by redirect).  */
+#define	RTF_MODIFIED	0x0020		/* Modified dyn. (by redirect).  */
+#define RTF_MTU		0x0040		/* Specific MTU for this route.  */
+#define RTF_MSS		RTF_MTU		/* Compatibility.  */
+#define RTF_WINDOW	0x0080		/* Per route window clamping.  */
+#define RTF_IRTT	0x0100		/* Initial round trip time.  */
+#define RTF_REJECT	0x0200		/* Reject route.  */
+#define	RTF_STATIC	0x0400		/* Manually injected route.  */
+#define	RTF_XRESOLVE	0x0800		/* External resolver.  */
+#define RTF_NOFORWARD   0x1000		/* Forwarding inhibited.  */
+#define RTF_THROW	0x2000		/* Go to next class.  */
+#define RTF_NOPMTUDISC  0x4000		/* Do not send packets with DF.  */
+
+/* Bad idea. IPv6 should not use broken IPv4 interface.  */
+
+#define RTF_ADDRCONF	0x0800		/* Announced on link prefix.  */
+#define RTF_INVALID	0x1000
+#define RTF_DCACHE	0x2000
+#define RTF_DEFAULT	0x4000		/* Route is a default route.  */
+#define RTF_NEXTHOP	0x8000		/* Non gateway route with nexthop.  */
+
+
+#define RTF_MAGIC	0x10000		/* Route added/deleted authomatically,
+					   when interface changes its state. */
+
+#define RTCF_VALVE	0x00200000
+#define RTCF_MASQ	0x00400000
+#define RTCF_NAT	0x00800000
+#define RTCF_DOREDIRECT 0x01000000
+#define RTCF_LOG	0x02000000
+#define RTCF_DIRECTSRC	0x04000000
+
+#define RTF_LOCAL	0x80000000
+#define RTF_INTERFACE	0x40000000
+#define RTF_MULTICAST	0x20000000
+#define RTF_BROADCAST	0x10000000
+#define RTF_NAT		0x08000000
+
+#define RTF_ADDRCLASSMASK	0xF8000000
+#define RT_ADDRCLASS(flags)	((__u_int32_t) flags >> 23)
+
+#define RT_TOS(tos)		((tos) & IPTOS_TOS_MASK)
+
+#define RT_LOCALADDR(flags)	((flags & RTF_ADDRCLASSMASK) \
+				 == (RTF_LOCAL|RTF_INTERFACE))
+
+#define RT_CLASS_UNSPEC		0
+#define RT_CLASS_DEFAULT	253
+
+#define RT_CLASS_MAIN		254
+#define RT_CLASS_LOCAL		255
+#define RT_CLASS_MAX		255
+
+
+#define RTMSG_ACK		NLMSG_ACK
+#define RTMSG_OVERRUN		NLMSG_OVERRUN
+
+#define RTMSG_NEWDEVICE		0x11
+#define RTMSG_DELDEVICE		0x12
+#define RTMSG_NEWROUTE		0x21
+#define RTMSG_DELROUTE		0x22
+#define RTMSG_NEWRULE		0x31
+#define RTMSG_DELRULE		0x32
+#define RTMSG_CONTROL		0x40
+
+#define RTMSG_AR_FAILED		0x51	/* Address Resolution failed.  */
+
+#endif /* net/route.h */
diff --git a/sysdeps/unix/sysv/linux/sparc/Dist b/sysdeps/unix/sysv/linux/sparc/Dist
new file mode 100644
index 0000000000..6134c6056d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/Dist
@@ -0,0 +1,2 @@
+__sigtrampoline.S
+clone.S
diff --git a/sysdeps/unix/sysv/linux/sparc/Makefile b/sysdeps/unix/sysv/linux/sparc/Makefile
new file mode 100644
index 0000000000..629e6b37df
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),signal)
+sysdep_routines += __sigtrampoline
+endif
diff --git a/sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S b/sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S
new file mode 100644
index 0000000000..d0fe760270
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S
@@ -0,0 +1,142 @@
+/* Userland trampoline code for sigaction on Linux/SPARC        */
+/* (C) 1996, 1997 Free Software Foundation, Inc.                */
+/* This file is part of the GNU C Library.                      */
+/* Contributed by Miguel de Icaza (miguel@gnu.ai.mit.edu)       */
+/* Many thanks go to David Miller for explaining all this to me */
+/* miguel@nuclecu.unam.mx                                       */
+/* Sources:	 David Miller, 4.4BSD/SPARC code 	        */
+
+#include <sysdep.h>
+
+/* For REGWIN_SZ */
+#include <asm/ptrace.h>
+#include <asm/psr.h>
+
+/* The C compiler frame size */
+#define CCFSZ  96
+
+	.text
+
+ENTRY(____sparc_signal_trampoline)
+	.global SYMBOL_NAME(____sig_table)
+
+	/* Make room for 32 %f registers + %fsr
+         * this is 132 bytes + alignement = 136
+         * 96 is the C frame size
+         */
+	save  	%sp,-136-CCFSZ,%sp
+
+	/* save regular registers */
+	mov	%g2,%l2
+	mov	%g3,%l3
+	mov	%g4,%l4
+	mov	%g5,%l5
+	mov	%g6,%l6
+	mov	%g7,%l7
+
+	/* save fpu registers */
+	ld	[%fp+64+16+20],%l0      /* load the psr from sigcontext */
+	sethi	%hi(PSR_EF),%l1
+	andcc	%l0,%l1,%l0	        /* is floating point enabled?   */
+	be	1f
+	rd	%y,%l1			/* save y anyways */
+
+	/* save fpu registers */
+	st      %fsr, [%sp + CCFSZ + 0]
+        std     %f0, [%sp + CCFSZ + 8]
+        std     %f2, [%sp + CCFSZ + 16]
+        std     %f4, [%sp + CCFSZ + 24]
+        std     %f6, [%sp + CCFSZ + 32]
+        std     %f8, [%sp + CCFSZ + 40]
+        std     %f10, [%sp + CCFSZ + 48]
+        std     %f12, [%sp + CCFSZ + 56]
+        std     %f14, [%sp + CCFSZ + 64]
+        std     %f16, [%sp + CCFSZ + 72]
+        std     %f18, [%sp + CCFSZ + 80]
+        std     %f20, [%sp + CCFSZ + 88]
+        std     %f22, [%sp + CCFSZ + 96]
+        std     %f24, [%sp + CCFSZ + 104]
+        std     %f26, [%sp + CCFSZ + 112]
+        std     %f28, [%sp + CCFSZ + 120]
+        std     %f30, [%sp + CCFSZ + 128]
+
+1:
+	/* Load signal number */
+	ld	[%fp + REGWIN_SZ],%o0
+	mov	%fp,%o1
+	mov	0xfea,%o2
+
+	/* Sanity check */
+	cmp	%o0,33
+	bl	1f
+	or	%g0,%g0,%g1	/*Call sys_setup */
+	t	0x10
+1:
+#ifdef __PIC__
+	/* Save return address */
+	mov	%o7,%o4
+___sxx:
+	call	___syy
+	nop
+___syy:
+	sethi   %hi(_GLOBAL_OFFSET_TABLE_-(___sxx-.)),%o5
+	or      %o5,%lo(_GLOBAL_OFFSET_TABLE_-(___sxx-.)),%o5
+	add	%o7,%o5,%o5
+	/* restore return address */
+	mov	%o4,%o7
+	mov	%o5,%o4
+	/* o4 has the GOT pointer */
+#endif
+	sethi	%hi(SYMBOL_NAME(____sig_table)),%o5
+	or	%o5,%lo(SYMBOL_NAME(____sig_table)),%o5
+#ifdef __PIC__
+	add	%o5,%o4,%o4
+	ld	[%o4],%o5
+#endif
+	sll	%o0,2,%o4
+	add	%o5,%o4,%o4
+	ld	[%o4],%o4
+	ld	[%fp + REGWIN_SZ + 4],%o1         /* Load subcode */
+	ld      [%fp + REGWIN_SZ + 8],%o2         /* pointer to sigcontext */
+	call	%o4
+	ld      [%fp + REGWIN_SZ + 12],%o3        /* Address where signal ocurred */
+
+	/* handler returned, restore state */
+	tst	%l0
+	be	1f
+	wr	%l1,%g0,%y
+
+	/* fpu restoration */
+	ld      [%sp + CCFSZ + 0], %fsr
+        ldd     [%sp + CCFSZ + 8], %f0
+        ldd     [%sp + CCFSZ + 16], %f2
+        ldd     [%sp + CCFSZ + 24], %f4
+        ldd     [%sp + CCFSZ + 32], %f6
+        ldd     [%sp + CCFSZ + 40], %f8
+        ldd     [%sp + CCFSZ + 48], %f10
+        ldd     [%sp + CCFSZ + 56], %f12
+        ldd     [%sp + CCFSZ + 64], %f14
+        ldd     [%sp + CCFSZ + 72], %f16
+        ldd     [%sp + CCFSZ + 80], %f18
+        ldd     [%sp + CCFSZ + 88], %f20
+        ldd     [%sp + CCFSZ + 96], %f22
+        ldd     [%sp + CCFSZ + 104], %f24
+        ldd     [%sp + CCFSZ + 112], %f26
+        ldd     [%sp + CCFSZ + 120], %f28
+        ldd     [%sp + CCFSZ + 128], %f30
+
+1:
+	mov	%l2,%g2
+	mov	%l3,%g3
+	mov	%l4,%g4
+	mov	%l5,%g5
+	mov	%l6,%g6
+	mov	%l7,%g7
+
+	/* call sigreturn */
+	restore	%g0,SYS_sigreturn,%g1 	 /* register back and set syscall */
+	add	%sp,64+16,%o0
+	t	0x10
+	/* if we return, sysreturn failed */
+	mov	SYS_exit,%g1
+	t	0x10
diff --git a/sysdeps/unix/sysv/linux/sparc/brk.c b/sysdeps/unix/sysv/linux/sparc/brk.c
new file mode 100644
index 0000000000..13bcb0459b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/brk.c
@@ -0,0 +1,56 @@
+/* brk system call for Linux/SPARC.
+   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx)
+
+   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 <errno.h>
+#include <unistd.h>
+#include <sysdep.h>
+
+/* This must be initialized data because commons can't have aliases.  */
+void *__curbrk = 0;
+
+/* Old braindamage in GCC's crtstuff.c requires this symbol in an attempt
+   to work around different old braindamage in the old Linux ELF dynamic
+   linker.  */
+weak_alias (__curbrk, ___brk_addr)
+
+int
+__brk (void *addr)
+{
+  void *newbrk, *scratch;
+
+  asm ("mov %1, %%g1\n\t"
+       "mov %2, %%o0\n\t"
+       "t 0x10\n\t"
+       "mov %%o0, %0\n\t"
+       : "=r" (newbrk)
+       : "0" (SYS_brk), "r" (addr)
+       : "g1", "o0");
+
+  __curbrk = newbrk;
+
+  if (newbrk < addr)
+    {
+      __set_errno (ENOMEM);
+      return -1;
+    }
+
+  return 0;
+}
+weak_alias (__brk, brk)
diff --git a/sysdeps/unix/sysv/linux/sparc/profil-counter.h b/sysdeps/unix/sysv/linux/sparc/profil-counter.h
new file mode 100644
index 0000000000..1998c34ed5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/profil-counter.h
@@ -0,0 +1,35 @@
+/* Low-level statistical profiling support function.  Linux/SPARC version.
+   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 <sigcontext.h>
+
+void
+profil_counter (int signo, __siginfo_t si)
+{
+  extern int __sparc_old_signals;
+
+  if (__sparc_old_signals)
+    {
+      struct sigcontext_struct *s = (void *) &si;
+
+      profil_count ((void *) s->sigc_pc);
+    }
+  else
+    profil_count ((void *) si.si_regs.pc);
+}
diff --git a/sysdeps/unix/sysv/linux/sparc/sigaction.c b/sysdeps/unix/sysv/linux/sparc/sigaction.c
new file mode 100644
index 0000000000..e7bda77de2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sigaction.c
@@ -0,0 +1,127 @@
+/* POSIX.1 sigaction call for Linux/SPARC.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx), 1997.
+
+   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 <syscall.h>
+#include <sys/signal.h>
+#include <errno.h>
+
+/* The kernel will deliver signals in the old way if the signal
+   number is a positive number.  The kernel will deliver a signal
+   with the new stack layout if the signal number is a negative number.
+
+   Our sigaction code takes care of selecting the type of kernel we are
+   using at runtime.  */
+
+extern void ____sparc_signal_trampoline (int);
+long ____sig_table [NSIG];
+
+int
+__trampoline_sigaction (int sig, struct sigaction *new, struct sigaction *old)
+{
+  int ret;
+  int need_to_hide_trick = 0;
+  __sighandler_t old_sh;
+
+  if (new)
+    {
+      if (new->sa_handler != SIG_DFL && new->sa_handler != SIG_IGN)
+	{
+	  old_sh = ____sig_table[sig];
+	  ____sig_table[sig] = (long int) new->sa_handler;
+	  new->sa_handler = ____sparc_signal_trampoline;
+	  need_to_hide_trick = 1;
+	}
+    }
+  __asm__("or %%g0,%0,%%g1\n\t"
+	  "or %%g0,%1,%%o0\n\t"
+	  "or %%g0,%2,%%o1\n\t"
+	  "or %%g0,%3,%%o2\n\t"
+	  "t  0x10\n\t"
+	  "bcc 1f\n\t"
+	  "or %%o0, %%g0, %0\n\t"
+	  "sub %%g0, %%o0, %0\n\t"
+	  "1:"
+	  : "=r" (ret), "=r" ((long int) sig), "=r" ((long int) new),
+	    "=r" ((long int) old)
+	  : "0" (SYS_sigaction), "1" (sig), "2" (new), "3" (old)
+	  : "g1", "o0", "o1", "o2");
+
+  if (ret >= 0)
+    {
+      if (old && old->sa_handler == ____sparc_signal_trampoline)
+	{
+	  if (need_to_hide_trick)
+	    old->sa_handler = old_sh;
+	  else
+	    old->sa_handler = ____sig_table[sig];
+	}
+      if (need_to_hide_trick)
+	new->sa_handler = ____sig_table[sig];
+      return 0;
+    }
+  __set_errno (-ret);
+  return -1;
+}
+
+int
+__new_sigaction (int sig, struct sigaction *new, struct sigaction *old)
+{
+  int ret;
+
+  sig = -sig;
+
+  __asm__("or %%g0,%0,%%g1\n\t"
+	  "or %%g0,%1,%%o0\n\t"
+	  "or %%g0,%2,%%o1\n\t"
+	  "or %%g0,%3,%%o2\n\t"
+	  "t  0x10\n\t"
+	  "bcc 1f\n\t"
+	  "or %%o0, %%g0, %0\n\t"
+	  "sub %%g0,%%o0,%0\n\t"
+	  "1:"
+	  : "=r" (ret), "=r" ((long int) sig), "=r" ((long int) new),
+	    "=r" ((long int) old)
+	  : "0" (SYS_sigaction), "1" (sig), "2" (new), "3" (old)
+	  : "g1", "o0", "o1", "o2");
+  if (ret >= 0)
+    return 0;
+  __set_errno (-ret);
+  return -1;
+}
+
+int
+__sigaction (int sig, struct sigaction *new, struct sigaction *old)
+{
+  static (*sigact_routine) (int, struct sigaction *, struct sigaction *);
+  int ret;
+  struct sigaction sa;
+
+  if (sigact_routine)
+    return (*sigact_routine) (sig, new, old);
+
+  ret = __new_sigaction (1, NULL, &sa);
+  if (ret == -1)
+    sigact_routine = __trampoline_sigaction;
+  else
+    sigact_routine = __new_sigaction;
+
+  return __sigaction (sig, new, old);
+}
+weak_alias (__sigaction, sigaction);
diff --git a/sysdeps/unix/sysv/linux/sparc/socket.S b/sysdeps/unix/sysv/linux/sparc/socket.S
new file mode 100644
index 0000000000..f8075201db
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/socket.S
@@ -0,0 +1,58 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, 1997.
+
+   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
+
+	.text
+/* 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.  */
+
+.globl P(__,socket)
+ENTRY (P(__,socket))
+	mov SYS_ify(socketcall), %g1    /* System call number */
+
+	/* Use ## so `socket' is a separate token that might be #define'd.  */
+	mov P(SOCKOP_,socket), %o0	/* Subcode is first arg to syscall.  */
+	mov %i0,%o1		        /* args pointer is second arg to syscall */
+
+	t 0x10
+	bcc,a	1
+	nop
+	save %sp,96,%sp
+	call __errno_location
+	nop
+	st %i0,[%o0]
+	restore
+	retl
+	mov -1,%o0
+1:
+	ret
+
+PSEUDO_END (P(__,socket))
+
+weak_alias (P(__,socket), socket)
diff --git a/sysdeps/unix/sysv/linux/sparc/syscall.S b/sysdeps/unix/sysv/linux/sparc/syscall.S
new file mode 100644
index 0000000000..4166e4231b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/syscall.S
@@ -0,0 +1,30 @@
+/* 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.  */
+
+#define DONT_LOAD_G1
+#include <sysdep.h>
+ENTRY (__libc_syscall)
+	or	%o0,%g0,%g1
+	or	%o1,%g0,%o0
+	or	%o2,%g0,%o1
+	or	%o3,%g0,%o2
+	or	%o4,%g0,%o3
+	or	%o5,%g0,%o4
+PSEUDO_NOENT(__libc_syscall, syscall, 5)
+	ret
+SYSCALL__POST(syscall,5)
diff --git a/sysdeps/unix/sysv/linux/sparc/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sysdep.h
new file mode 100644
index 0000000000..0251a1f014
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sysdep.h
@@ -0,0 +1,57 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, January 1997.
+
+   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 _LINUX_SPARC_SYSDEP_H
+#define _LINUX_SPARC_SYSDEP_H 1
+
+#include <sysdeps/unix/sparc/sysdep.h>
+
+#undef SYS_ify
+#define SYS_ify(syscall_name) __NR_##syscall_name
+
+#ifdef ASSEMBLER
+
+#ifdef DONT_LOAD_G1
+# define LOADSYSCALL(x)
+#else
+# define LOADSYSCALL(x) mov SYS_##n, %g1
+#endif
+
+/* Linux/SPARC uses a different trap number and uses __errno_location always */
+#undef PSEUDO
+
+#define PSEUDO(name, syscall_name, args) \
+	.text;								      \
+	ENTRY(name);							      \
+	LOADSYSCALL(syscall_name);					      \
+	ta 0x10;							      \
+	bcc,a 1f;							      \
+	nop;								      \
+	save %sp,96,%sp;						      \
+	call __errno_location;						      \
+	nop;								      \
+	st %i0,[%o0];							      \
+	restore;							      \
+	retl;								      \
+	mov -1,%o0;							      \
+1:
+
+#endif	/* ASSEMBLER */
+
+#endif /* linux/sparc/sysdep.h */
diff --git a/sysdeps/unix/sysv/linux/sys/msq_buf.h b/sysdeps/unix/sysv/linux/sys/msq_buf.h
index e885bd9c2f..0abc10f6e5 100644
--- a/sysdeps/unix/sysv/linux/sys/msq_buf.h
+++ b/sysdeps/unix/sysv/linux/sys/msq_buf.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
@@ -46,8 +46,8 @@ struct msqid_ds
   unsigned short int __msg_cbytes;/* current number of bytes on queue */
   unsigned short int msg_qnum;	/* number of messages currently on queue */
   unsigned short int msg_qbytes;/* max number of bytes allowed on queue */
-  __pid_t msg_lspid;		/* pid of last msgsnd() */
-  __pid_t msg_lrpid;		/* pid of last msgrcv() */
+  int msg_lspid;		/* pid of last msgsnd() */
+  int msg_lrpid;		/* pid of last msgrcv() */
 };
 
 #ifdef __USE_MISC
diff --git a/sysdeps/unix/sysv/linux/sys/shm_buf.h b/sysdeps/unix/sysv/linux/sys/shm_buf.h
index f6d853744f..642b7bd191 100644
--- a/sysdeps/unix/sysv/linux/sys/shm_buf.h
+++ b/sysdeps/unix/sysv/linux/sys/shm_buf.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
@@ -48,8 +48,8 @@ struct shmid_ds
   __time_t shm_atime;			/* time of last shmat() */
   __time_t shm_dtime;			/* time of last shmdt() */
   __time_t shm_ctime;			/* time of last change by shmctl() */
-  __pid_t shm_cpid;			/* pid of creator */
-  __pid_t shm_lpid;			/* pid of last shmop */
+  int shm_cpid;				/* pid of creator */
+  int shm_lpid;				/* pid of last shmop */
   unsigned short int shm_nattch;	/* number of current attaches */
   unsigned short int __shm_npages;	/* size of segment (pages) */
   unsigned long int *__shm_pages;	/* array of ptrs to frames -> SHMMAX */