update from main archive 960814 cvs/libc-960815

6 files changed, 93 insertions, 17 deletions

diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h
index a75011fccb..2bf8f9b7ec 100644
--- a/sysdeps/alpha/dl-machine.h
+++ b/sysdeps/alpha/dl-machine.h
@@ -341,8 +341,8 @@ elf_machine_rela (struct link_map *map,
     {
       Elf64_Addr loadbase, sym_value;
 
-      loadbase = RESOLVE (&sym, (Elf64_Addr)reloc_addr,
-			  r_info == R_ALPHA_JMP_SLOT);
+      loadbase = RESOLVE (&sym,
+			  r_info == R_ALPHA_JMP_SLOT ? DL_LOOKUP_NOPLT : 0);
       sym_value = sym ? loadbase + sym->st_value : 0;
 
       if (r_info == R_ALPHA_GLOB_DAT)
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index 111122e437..d616bf4db8 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -193,15 +193,15 @@ elf_machine_rel (struct link_map *map,
   switch (ELF32_R_TYPE (reloc->r_info))
     {
     case R_386_COPY:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, DL_LOOKUP_NOEXEC);
       memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size);
       break;
     case R_386_GLOB_DAT:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, 0);
       *reloc_addr = sym ? (loadbase + sym->st_value) : 0;
       break;
     case R_386_JMP_SLOT:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 1);
+      loadbase = RESOLVE (&sym, DL_LOOKUP_NOPLT);
       *reloc_addr = sym ? (loadbase + sym->st_value) : 0;
       break;
     case R_386_32:
@@ -222,7 +222,7 @@ elf_machine_rel (struct link_map *map,
 	     built-in definitions used while loading those libraries.  */
 	  undo = map->l_addr + sym->st_value;
 #endif
-	loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+	loadbase = RESOLVE (&sym, 0);
 	*reloc_addr += (sym ? (loadbase + sym->st_value) : 0) - undo;
 	break;
       }
@@ -233,7 +233,7 @@ elf_machine_rel (struct link_map *map,
 	*reloc_addr += map->l_addr;
       break;
     case R_386_PC32:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, 0);
       *reloc_addr += ((sym ? (loadbase + sym->st_value) : 0) -
 		      (Elf32_Addr) reloc_addr);
       break;
diff --git a/sysdeps/m68k/dl-machine.h b/sysdeps/m68k/dl-machine.h
index 4642f00c63..15aa5325fc 100644
--- a/sysdeps/m68k/dl-machine.h
+++ b/sysdeps/m68k/dl-machine.h
@@ -205,29 +205,29 @@ elf_machine_rela (struct link_map *map,
   switch (ELF32_R_TYPE (reloc->r_info))
     {
     case R_68K_COPY:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, DL_LOOKUP_NOEXEC);
       memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size);
       break;
     case R_68K_GLOB_DAT:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, 0);
       *reloc_addr = sym ? (loadbase + sym->st_value) : 0;
       break;
     case R_68K_JMP_SLOT:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 1);
+      loadbase = RESOLVE (&sym, DL_LOOKUP_NOPLT);
       *reloc_addr = sym ? (loadbase + sym->st_value) : 0;
       break;
     case R_68K_8:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, 0);
       *(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
 			      + reloc->r_addend);
       break;
     case R_68K_16:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, 0);
       *(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
 			       + reloc->r_addend);
       break;
     case R_68K_32:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, 0);
       *reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
 		     + reloc->r_addend);
       break;
@@ -235,17 +235,17 @@ elf_machine_rela (struct link_map *map,
       *reloc_addr = map->l_addr + reloc->r_addend;
       break;
     case R_68K_PC8:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, 0);
       *(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
 			      + reloc->r_addend - (Elf32_Addr) reloc_addr);
       break;
     case R_68K_PC16:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, 0);
       *(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
 			       + reloc->r_addend - (Elf32_Addr) reloc_addr);
       break;
     case R_68K_PC32:
-      loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+      loadbase = RESOLVE (&sym, 0);
       *reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
 		     + reloc->r_addend - (Elf32_Addr) reloc_addr);
       break;
diff --git a/sysdeps/mips/dl-machine.h b/sysdeps/mips/dl-machine.h
index 50e9f64665..c0ac649144 100644
--- a/sysdeps/mips/dl-machine.h
+++ b/sysdeps/mips/dl-machine.h
@@ -453,7 +453,7 @@ elf_machine_rel (struct link_map *map,
 	  else
 #endif
 	    undo = 0;
-	  loadbase = RESOLVE (&sym, (ElfW(Addr)) reloc_addr, 0);
+	  loadbase = RESOLVE (&sym, 0);
 	  *reloc_addr += (sym ? (loadbase + sym->st_value) : 0) - undo;
 	}
       break;
diff --git a/sysdeps/unix/sysv/linux/i386/clone.S b/sysdeps/unix/sysv/linux/i386/clone.S
index 02f561927e..b60bc8ed92 100644
--- a/sysdeps/unix/sysv/linux/i386/clone.S
+++ b/sysdeps/unix/sysv/linux/i386/clone.S
@@ -71,6 +71,7 @@ ENTRY(__clone)
 thread_start:
 	subl	%ebp,%ebp	/* terminate the stack frame */
 	call	*%ebx
+	pushl	%eax
 #ifdef PIC
 	call	_exit@PLT
 #else
diff --git a/sysdeps/unix/sysv/linux/m68k/clone.S b/sysdeps/unix/sysv/linux/m68k/clone.S
new file mode 100644
index 0000000000..64077e00de
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/m68k/clone.S
@@ -0,0 +1,75 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+   Contributed by Andreas Schwab (schwab@issan.informatik.uni-dortmund.de)
+
+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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* clone is even more special than fork as it mucks with stacks
+   and invokes a function in the right context after its all over.  */
+
+#include <sysdep.h>
+#include <errnos.h>
+
+/* int clone (int (*fn) (), void *child_stack, int flags, int nargs, ...) */
+
+        .text
+ENTRY (__clone)
+	/* Sanity check arguments.  */
+	movel	#-EINVAL, %d0
+	movel	4(%sp), %a0		/* no NULL function pointers */
+	tstl	%a0
+	jeq	syscall_error
+	movel	8(%sp), %a1		/* no NULL stack pointers */
+	tstl	%a1
+	jeq	syscall_error
+	movel	16(%sp), %d1		/* no negative argument counts */
+	jmi	syscall_error
+
+	/* Allocate space on the new stack and copy args over */
+	movel	%d1, %d0
+	negl	%d0
+	lea	(%a1,%d0.l*4), %a1
+	jeq	2f
+1:	movel	16(%sp,%d1.l*4), -4(%a1,%d1.l*4)
+	subql	#1, %d1
+	jne	1b
+2:
+
+	/* Do the system call */
+	exg	%d2, %a1		/* save %d2 and get stack pointer */
+	movel	12(%sp), %d1		/* get flags */
+	movel	#SYS_ify (clone), %d0
+	trap	#0
+	exg	%d2, %a1		/* restore %d2 */
+
+	tstl	%d0
+	jmi	syscall_error
+	jeq	thread_start
+
+	rts
+
+	SYSCALL_ERROR_HANDLER
+
+thread_start:
+	subl	%fp, %fp	/* terminate the stack frame */
+	jsr	(%a0)
+	movel	%d0, -(%sp)
+#ifdef PIC
+	bsrl	_exit@PLTPC
+#else
+	jbsr	_exit
+#endif
+
+weak_alias (__clone, clone)