about summary refs log tree commit diff
path: root/sysdeps/unix
diff options
context:
space:
mode:
authorRoland McGrath <roland@gnu.org>1996-07-01 22:16:41 +0000
committerRoland McGrath <roland@gnu.org>1996-07-01 22:16:41 +0000
commit3776d592f117c8c5b0d2c37d265cb8ee2ac21695 (patch)
tree9cae15e988bc6b4eb1e2737db59bceaab58e0be7 /sysdeps/unix
parent7cbc698400bfe2a64f12b0cb703fda0fdecb5a59 (diff)
downloadglibc-3776d592f117c8c5b0d2c37d265cb8ee2ac21695.tar.gz
glibc-3776d592f117c8c5b0d2c37d265cb8ee2ac21695.tar.xz
glibc-3776d592f117c8c5b0d2c37d265cb8ee2ac21695.zip
Mon Jul 1 12:29:50 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
	* nss/Makefile (databases): Change host to hosts.
	* nss/host-lookup.c: Renamed to nss/hosts-lookup.c.
Diffstat (limited to 'sysdeps/unix')
-rw-r--r--sysdeps/unix/alpha/sysdep.S2
-rw-r--r--sysdeps/unix/alpha/sysdep.h12
-rw-r--r--sysdeps/unix/sysv/linux/alpha/init-first.h12
-rw-r--r--sysdeps/unix/sysv/linux/i386/init-first.h13
-rw-r--r--sysdeps/unix/sysv/linux/init-first.c43
-rw-r--r--sysdeps/unix/sysv/linux/m68k/init-first.h12
6 files changed, 55 insertions, 39 deletions
diff --git a/sysdeps/unix/alpha/sysdep.S b/sysdeps/unix/alpha/sysdep.S
index 3e7666ff61..6540b80af6 100644
--- a/sysdeps/unix/alpha/sysdep.S
+++ b/sysdeps/unix/alpha/sysdep.S
@@ -26,10 +26,10 @@ Cambridge, MA 02139, USA.  */
 #endif
 
 LEAF(__syscall_error, 0)
+	ldgp	gp, 0(t12)
 	.prologue 1
 
 	/* Store return value in errno... */
-	ldgp	gp, 0(t12)
 	stl	v0, errno
 
 	/* And just kick back a -1.  */
diff --git a/sysdeps/unix/alpha/sysdep.h b/sysdeps/unix/alpha/sysdep.h
index 4b3f9aa5d8..72d84047c2 100644
--- a/sysdeps/unix/alpha/sysdep.h
+++ b/sysdeps/unix/alpha/sysdep.h
@@ -99,22 +99,12 @@ name/**/:					\
 
 #undef PSEUDO_END
 
-#ifdef PIC
-/* When building a shared library, we can use a branch since the text
-   section of the library is much smaller than 4MB.  If we ever break
-   this assumption, the linker will tell us.  */
-# define PSEUDO_END(sym)			\
-1996:						\
-    br		zero, __syscall_error;		\
-    END(sym)
-#else
-# define PSEUDO_END(sym)			\
+#define PSEUDO_END(sym)				\
 1996:						\
     br		gp, 2f;				\
 2:  ldgp	gp, 0(gp);			\
     jmp		zero, __syscall_error;		\
     END(sym)
-#endif
 
 #define r0	v0
 #define r1	a4
diff --git a/sysdeps/unix/sysv/linux/alpha/init-first.h b/sysdeps/unix/sysv/linux/alpha/init-first.h
new file mode 100644
index 0000000000..c27c589a28
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/init-first.h
@@ -0,0 +1,12 @@
+/* This fragment is invoked in the stack context of program start.
+   Its job is to set up a pointer to argc as an argument, pass
+   control to `INIT', and, if necessary, clean up after the call
+   to leave the stack in the same condition it was found in.  */
+
+#define SYSDEP_CALL_INIT(NAME, INIT)	\
+    asm(".globl " #NAME "\n"		\
+	#NAME ":\n\t"			\
+	"ldgp $29, 0($27)\n\t"		\
+	".prologue 1\n\t"		\
+	"mov $30, $16\n\t"		\
+	"br $31, " #INIT "..ng");
diff --git a/sysdeps/unix/sysv/linux/i386/init-first.h b/sysdeps/unix/sysv/linux/i386/init-first.h
new file mode 100644
index 0000000000..f42d7f2533
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/init-first.h
@@ -0,0 +1,13 @@
+/* This fragment is invoked in the stack context of program start.
+   Its job is to set up a pointer to argc as an argument, pass
+   control to `INIT', and, if necessary, clean up after the call
+   to leave the stack in the same condition it was found in.  */
+
+#define SYSDEP_CALL_INIT(NAME, INIT)	\
+    asm(".globl " #NAME "\n\t"		\
+	#NAME ":\n\t"			\
+	"lea 4(%esp), %eax\n\t"		\
+	"pushl %eax\n\t"		\
+	"call " #INIT "\n\t"		\
+	"popl %eax\n\t"			\
+	"ret");
diff --git a/sysdeps/unix/sysv/linux/init-first.c b/sysdeps/unix/sysv/linux/init-first.c
index 6d974ea1e6..a63200c1ae 100644
--- a/sysdeps/unix/sysv/linux/init-first.c
+++ b/sysdeps/unix/sysv/linux/init-first.c
@@ -19,23 +19,22 @@ Cambridge, MA 02139, USA.  */
 
 #include <unistd.h>
 #include <sysdep.h>
-#include "fpu_control.h"
-
-/* This code is mostly the same for all machines.  This version works at
-   least for i386 and m68k, and probably any CISCy machine with a normal
-   stack arrangement.  */
+#include <fpu_control.h>
+#include "init-first.h"
 
 extern void __libc_init (int, char **, char **);
 extern void __libc_global_ctors (void);
 
+/* The function is called from assembly stubs the compiler can't see.  */
+static void init (void *) __attribute__ ((unused));
 
 static void
-init (int *data)
+init (void *data)
 {
   extern int __personality (int);
 
-  int argc = *data;
-  char **argv = (void *) (data + 1);
+  int argc = *(long *)data;
+  char **argv = (char **)data + 1;
   char **envp = &argv[argc + 1];
 
   /* The `personality' system call takes one argument that chooses the
@@ -50,33 +49,23 @@ init (int *data)
 
   __environ = envp;
   __libc_init (argc, argv, envp);
+
+#ifdef PIC
+  __libc_global_ctors ();
+#endif
 }
 
 #ifdef PIC
-/* This function is called to initialize the shared C library.
-   It is called just before the user _start code from i386/elf/start.S,
-   with the stack set up as that code gets it.  */
 
-/* NOTE!  The linker notices the magical name `_init' and sets the DT_INIT
-   pointer in the dynamic section based solely on that.  It is convention
-   for this function to be in the `.init' section, but the symbol name is
-   the only thing that really matters!!  */
-/*void _init (int argc, ...) __attribute__ ((unused, section (".init")));*/
+SYSDEP_CALL_INIT(_init, init);
 
 void
-_init (int argc, ...)
+__libc_init_first (void)
 {
-  init (&argc);
-
-  __libc_global_ctors ();
 }
-#endif
 
+#else
+
+SYSDEP_CALL_INIT(__libc_init_first, init);
 
-void
-__libc_init_first (int argc __attribute__ ((unused)), ...)
-{
-#ifndef PIC
-  init (&argc);
 #endif
-}
diff --git a/sysdeps/unix/sysv/linux/m68k/init-first.h b/sysdeps/unix/sysv/linux/m68k/init-first.h
new file mode 100644
index 0000000000..7d8c320b0a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/m68k/init-first.h
@@ -0,0 +1,12 @@
+/* This fragment is invoked in the stack context of program start.
+   Its job is to set up a pointer to argc as an argument, pass
+   control to `INIT', and, if necessary, clean up after the call
+   to leave the stack in the same condition it was found in.  */
+
+#define SYSDEP_CALL_INIT(NAME, INIT)	\
+    asm(".globl " #NAME "\n\t"		\
+	#NAME ":\n\t"			\
+	"pea %sp@(4)\n\t"		\
+	"jbsr " #INIT "\n\t"		\
+	"addq #4,%sp\n\t"		\
+	"rts");