Update.

1998-06-16  David S. Miller <davem@dm.cobaltmicro.com>

	* sysdeps/sparc/sparc32/dl-machine.h
	(elf_machine_fixup_plt): During rtld bootstrap, always perform
	flushes as the kernel will emulate it when the underlying cpu does
	not implement flush.

	* sysdeps/unix/sysv/linux/sparc/sys/kernel_termios.h: Move...
	* sysdeps/unix/sysv/linux/sparc/kernel_termios.h: ...to here.

	* sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S: Remove.
	* sysdeps/unix/sysv/linux/sparc/sparc32/Makefile: No longer build
	trampoline code.

	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
	(__clone): Branch to label .Lerror not __clone_syscall_error.
	(.Lerror): Fixup EINVAL setting.
	* sysdeps/unix/sysv/linux/sparc/sparc32/getgroups.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
	(__syscall_getgroups, __syscall_setgroups): Add.

	* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
	(__sigaction): Member name is k_sa_handler.  Use memcpy to copy
	around sa_mask data.

	* math/math.h: Include bits/nan.h when compiling for ISO C 9x.

10 files changed, 54 insertions, 172 deletions

diff --git a/sysdeps/sparc/sparc32/dl-machine.h b/sysdeps/sparc/sparc32/dl-machine.h
index 348e0a4..f08eb03 100644
--- a/sysdeps/sparc/sparc32/dl-machine.h
+++ b/sysdeps/sparc/sparc32/dl-machine.h
@@ -271,7 +271,9 @@ elf_machine_fixup_plt (struct link_map *map, const Elf32_Rela *reloc,
   unsigned long *hwcap = WEAKADDR(_dl_hwcap);
   int do_flush = (!hwcap || (*hwcap & HWCAP_SPARC_FLUSH));
 #else
-  int do_flush = 0;
+  /* Unfortunately, this is necessary, so that we can ensure
+     ld.so will not execute corrupt PLT entry instructions. */
+  const int do_flush = 1;
 #endif
 
   /* For thread safety, write the instructions from the bottom and
diff --git a/sysdeps/unix/sysv/linux/sparc/kernel_termios.h b/sysdeps/unix/sysv/linux/sparc/kernel_termios.h
new file mode 100644
index 0000000..843bcad
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/kernel_termios.h
@@ -0,0 +1,38 @@
+/* Copyright (C) 1997, 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 _KERNEL_TERMIOS_H
+#define _KERNEL_TERMIOS_H 1
+/* The following corresponds to the values from the Linux 2.1.20 kernel.  */
+
+/* We need the definition of tcflag_t, cc_t, and speed_t.  */
+#include <termios.h>
+
+#define __KERNEL_NCCS 17
+
+struct __kernel_termios
+  {
+    tcflag_t c_iflag;		/* input mode flags */
+    tcflag_t c_oflag;		/* output mode flags */
+    tcflag_t c_cflag;		/* control mode flags */
+    tcflag_t c_lflag;		/* local mode flags */
+    cc_t c_line;		/* line discipline */
+    cc_t c_cc[__KERNEL_NCCS];	/* control characters */
+  };
+
+#endif /* kernel_termios.h */
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile b/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
index 01a0e83..0162906 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
@@ -1,7 +1,3 @@
-ifeq ($(subdir),signal)
-sysdep_routines += __sigtrampoline
-endif
-
 asm-CPPFLAGS=-D__ASSEMBLY__
 ASFLAGS-.os=-fPIC
 
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S b/sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S
deleted file mode 100644
index 8e88a3f..0000000
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S
+++ /dev/null
@@ -1,140 +0,0 @@
-/* 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>
-#define __ASSEMBLY__
-/* 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 C_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,%o5
-11:	call	12f
-	 sethi	%hi(_GLOBAL_OFFSET_TABLE_-(11b-.)),%o4
-12:	or	%o5,%lo(_GLOBAL_OFFSET_TABLE_-(11b-.)),%o4
-	add	%o7,%o4,%o4
-	/* restore return address */
-	mov	%o5,%o7
-	/* o4 has the GOT pointer */
-#endif
-	sethi	%hi(C_SYMBOL_NAME(____sig_table)),%o5
-	or	%o5,%lo(C_SYMBOL_NAME(____sig_table)),%o5
-#ifdef PIC
-	ld	[%o4+%o5], %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 ocurre
- */
-
-	/* 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_ify(sigreturn),%g1	/* register back and set syscal */
-	add	%sp,64+16,%o0
-	t	0x10
-	/* if we return, sysreturn failed */
-	mov	SYS_ify(exit),%g1
-	t	0x10
-
-END(____sparc_signal_trampoline)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
index e053569..e40ee32 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
@@ -44,7 +44,7 @@ __clone:
 	mov	%i2,%o0
 	set	__NR_clone,%g1
 	ta	0x10
-	bcs	__clone_syscall_error
+	bcs	.Lerror
 	 tst	%o1
 	bne	__thread_start
 	 nop
@@ -54,7 +54,7 @@ __clone:
 
 .Lerror:
 	call	__errno_location
-	 set	EINVAL,%i0
+	 or	%g0,EINVAL,%i0
 	st	%i0,[%o0]
 	mov	-1,%i0
 	ret
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/getgroups.c b/sysdeps/unix/sysv/linux/sparc/sparc32/getgroups.c
new file mode 100644
index 0000000..102ea24
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/getgroups.c
@@ -0,0 +1,2 @@
+/* We also have to rewrite the kernel gid_t to the user land type.  */
+#include <sysdeps/unix/sysv/linux/i386/getgroups.c>
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c b/sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c
new file mode 100644
index 0000000..0e70862
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c
@@ -0,0 +1,2 @@
+/* We also have to rewrite the kernel gid_t to the user land type.  */
+#include <sysdeps/unix/sysv/linux/i386/setgroups.c>
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c b/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
index b9c20dd..742ac55 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
@@ -34,14 +34,14 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
   struct kernel_sigaction k_sigact, k_osigact;
 
   /* Magic to tell the kernel we are using "new-style" signals, in that
-     the signal table is not kept in userspace.  Not the same as the 
+     the signal table is not kept in userspace.  Not the same as the
      really-new-style rt signals.  */
   sig = -sig;
 
   if (act)
     {
-      k_sigact.sa_handler = act->sa_handler;
-      k_sigact.sa_mask = act->sa_mask.__val[0];
+      k_sigact.k_sa_handler = act->sa_handler;
+      memcpy (&k_sigact.sa_mask, &act->sa_mask, sizeof (sigset_t));
       k_sigact.sa_flags = act->sa_flags;
     }
 
@@ -70,8 +70,8 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
     {
       if (oact)
 	{
-	  oact->sa_handler = k_osigact.sa_handler;
-	  oact->sa_mask.__val[0] = k_osigact.sa_mask;
+	  oact->sa_handler = k_osigact.k_sa_handler;
+	  memcpy (&oact->sa_mask, &k_osigact.sa_mask, sizeof (sigset_t));
 	  oact->sa_flags = k_osigact.sa_flags;
 	  oact->sa_restorer = NULL;
 	}
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list b/sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
index 7883d70..9a3e4d0 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
@@ -1,3 +1,5 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
+s_getgroups	getgroups getgroups	2	__syscall_getgroups
 s_llseek	llseek	_llseek		5	__sys_llseek
+s_setgroups	setgroups setgroups	2	__syscall_setgroups
diff --git a/sysdeps/unix/sysv/linux/sparc/sys/kernel_termios.h b/sysdeps/unix/sysv/linux/sparc/sys/kernel_termios.h
deleted file mode 100644
index b33fd31..0000000
--- a/sysdeps/unix/sysv/linux/sparc/sys/kernel_termios.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef _SYS_KERNEL_TERMIOS_H
-#define _SYS_KERNEL_TERMIOS_H 1
-/* The following corresponds to the values from the Linux 2.1.20 kernel.  */
-
-/* We need the definition of tcflag_t, cc_t, and speed_t.  */
-#include <termbits.h>
-
-#define __KERNEL_NCCS 17
-
-struct __kernel_termios
-  {
-    tcflag_t c_iflag;		/* input mode flags */
-    tcflag_t c_oflag;		/* output mode flags */
-    tcflag_t c_cflag;		/* control mode flags */
-    tcflag_t c_lflag;		/* local mode flags */
-    cc_t c_line;		/* line discipline */
-    cc_t c_cc[__KERNEL_NCCS];	/* control characters */
-  };
-
-#endif /* sys/kernel_termios.h */