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authorRoland McGrath <roland@gnu.org>1995-07-22 10:48:43 +0000
committerRoland McGrath <roland@gnu.org>1995-07-22 10:48:43 +0000
commit439d1d4560aa3e261c065c43e3995779809b4cb2 (patch)
tree82be4196b9f9a0567b4210d818cacc53780b3030 /sysdeps/unix/sysv/i386
parent0bf9d0eb2bc40ee304e8ff0315112cde711fa1b2 (diff)
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Sat Jul 22 01:56:03 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
	* sysdeps/unix/i386/sysdep.h (JUMPTARGET): New macro; use name@PLT
 	#ifdef PIC.
	(PSEUDO): Use JUMPTARGET(syscall_error) in jump insn.
	* sysdeps/unix/i386/syscall.S: Use JUMPTARGET(syscall_error) in
 	jump insn.

	* sysdeps/unix/sysv/sysv4/linux/i386/sysdep.h: Rewritten.
	* sysdeps/unix/sysv/sysv4/linux/i386/syscall.S: New file.
	* sysdeps/unix/sysv/sysv4/linux/i386/socket.S: Include
 	<sys/socketcall.h>.  Save %ebx in call-clobbered %edx instead of
 	stack.  Use JUMPTARGET(syscall_error) in jump insn.

	* Makeconfig (+gccwarn): Add -Wbad-function-cast -Wconversion.

	* sysdeps/unix/i386/sysdep.h (ENTRY): Use ASM_GLOBAL_DIRECTIVE and
 	ASM_TYPE_DIRECTIVE.
	(ASM_TYPE_DIRECTIVE): New macro; defined using `.type' #ifdef ELF.

	* sysdeps/unix/sysv/sysv4/linux/i386/sysdep.S (__syscall_error): 
	Rewritten, #include'ing unix/i386/sysdep.S for most of the code.
	* sysdeps/unix/i386/sysdep.S [PIC]: Store into `errno' through the GOT.

	Fixes to help Linux, inspired by drepper's work:
	* configure.in (os=linux*): Use unix/sysv/sysv4 for $base_os,
 	instead of unix/sysv.
	* sysdeps/posix/utimes.c: New file.
	* sysdeps/generic/getdomain.c: New file.
	* sysdeps/i386/init-first.c: Removed gratuitous #include <hurd.h>.
	* sysdeps/generic/dl-sysdep.c: Include <unistd.h> and declare
 	externals _dl_argc, _dl_argc, and _environ.
	* sysdeps/unix/sysv/linux/{accept,connect,getsockname,rename,
	socketpair,waitpid,bind,getpeername,listen,setsid,wait4}.S: Moved
	to new directory sysdeps/unix/sysv/sysv4/linux.
	* sysdeps/unix/sysv/linux: Directory removed.
	* sysdeps/unix/sysv/i386/linux/{socket.S,sysdep.h,sysdep.S}: Moved
	to new directory sysdeps/unix/sysv/sysv4/linux/i386.
	* sysdeps/unix/sysv/linux/i386: Directory removed.
Diffstat (limited to 'sysdeps/unix/sysv/i386')
-rw-r--r--sysdeps/unix/sysv/i386/linux/socket.S55
-rw-r--r--sysdeps/unix/sysv/i386/linux/sysdep.S38
-rw-r--r--sysdeps/unix/sysv/i386/linux/sysdep.h57
-rw-r--r--sysdeps/unix/sysv/i386/linux/wait.S31
4 files changed, 0 insertions, 181 deletions
diff --git a/sysdeps/unix/sysv/i386/linux/socket.S b/sysdeps/unix/sysv/i386/linux/socket.S
deleted file mode 100644
index 9f59bad095..0000000000
--- a/sysdeps/unix/sysv/i386/linux/socket.S
+++ /dev/null
@@ -1,55 +0,0 @@
-/* Copyright (C) 1991, 1992 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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
-
-#include <sysdep.h>
-
-.globl syscall_error
-
-/* 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 specific function.
-
-   The .S files for the other calls just #define socket and #include this.  */
-
-ENTRY (socket)
-
-	/* Save registers.  */
-	pushl %ebx
-	pushl %ecx
-
-	movl $__NR_socketcall, %eax	/* System call number in %eax.  */
-
-	/* Use ## so `socket' is a separate token that might be #define'd.  */
-	movl $SYS_##socket, %ebx	/* Subcode is first arg to syscall.  */
-	lea 12(%esp), %ecx		/* Address of args in 2nd arg.  */
-
-        /* Do the system call trap.  */
-	int $0x80
-
-	/* Restore registers.  */
-	popl %ecx
-	popl %ebx
-
-	/* %eax is < 0 if there was an error.  */
-	testl %eax, %eax
-	jl syscall_error
-
-	/* Successful; return the syscall's value.  */
-	ret
diff --git a/sysdeps/unix/sysv/i386/linux/sysdep.S b/sysdeps/unix/sysv/i386/linux/sysdep.S
deleted file mode 100644
index ed3a2782a9..0000000000
--- a/sysdeps/unix/sysv/i386/linux/sysdep.S
+++ /dev/null
@@ -1,38 +0,0 @@
-/* Copyright (C) 1992, 1993, 1994 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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
-
-#include <sysdep.h>
-#define _ERRNO_H
-#include <errnos.h>
-
-/* We jump here when a system call gets an error.
-   The error number is negated in %eax.  */
-.globl syscall_error
-syscall_error:
-	negl %eax		/* Make it positive.  */
-#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
-	/* We translate the system's EWOULDBLOCK error into EAGAIN.
-	   The GNU C library always defines EWOULDBLOCK==EAGAIN.
-	   EWOULDBLOCK_sys is the original number.  */
-	cmpl %eax, $EWOULDBLOCK_sys /* Is it the old EWOULDBLOCK?  */
-	jne 0f			/* Branch if not.  */
-	move $EAGAIN, %eax	/* Yes; translate it to EAGAIN.  */
-#endif
-0:	movl %eax, _errno	/* Store it in `errno'.  */
-	move $-1, %eax		/* Return -1.  */
-	ret
diff --git a/sysdeps/unix/sysv/i386/linux/sysdep.h b/sysdeps/unix/sysv/i386/linux/sysdep.h
deleted file mode 100644
index 298a0e4c5b..0000000000
--- a/sysdeps/unix/sysv/i386/linux/sysdep.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Copyright (C) 1992, 1993 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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
-
-#include <sysdeps/unix/sysdep.h>
-
-#define	ENTRY(name)							      \
-  .globl _##name;							      \
-  .align 2;								      \
-  _##name##:
-
-#define	PSEUDO(name, syscall_name, args)				      \
-  .text;								      \
-  .globl syscall_error;							      \
-  ENTRY (name)								      \
-    XCHG_##args
-    movl $SYS_##syscall_name, %eax;					      \
-    int $0x80;								      \
-    test %eax, %eax;							      \
-    jl syscall_error;							      \
-    XCHG_##args
-
-/* Linux takes system call arguments in registers:
-   	1: %ebx
-	2: %ecx
-	3: %edx
-	4: %esi
-	5: %edi
-   We put the arguments into registers from the stack,
-   and save the registers, by using the 386 `xchg' instruction
-   to swap the values in both directions.  */
-
-#define	XCHG_0	/* No arguments to frob.  */
-#define	XCHG_1	xchg 8(%esp), %ebx; XCHG_0
-#define	XCHG_2	xchg 12(%esp), %ecx; XCHG_1
-#define	XCHG_3	xchg 16(%esp), %edx; XCHG_2
-#define	XCHG_4	xchg 20(%esp), %esi; XCHG_3
-#define	XCHG_5	xchg 24(%esp), %edi; XCHG_3
-
-#define	r0		%eax	/* Normal return-value register.  */
-#define	r1		%edx	/* Secondary return-value register.  */
-#define scratch 	%ecx	/* Call-clobbered register for random use.  */
-#define MOVE(x,y)	movl x, y
diff --git a/sysdeps/unix/sysv/i386/linux/wait.S b/sysdeps/unix/sysv/i386/linux/wait.S
deleted file mode 100644
index 4be64c47c9..0000000000
--- a/sysdeps/unix/sysv/i386/linux/wait.S
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (C) 1991, 1992, 1995 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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
-
-#include <sysdep.h>
-
-ENTRY (__wait)
-	movl 0(%esp), %eax	/* Fetch the return address.  */
-	movl $-1, 0(%esp)	/* First arg is -1.  */
-				/* Second arg is our arg at 4(%esp).  */
-	pushl $0		/* Third arg is 0.  */
-	pushl %eax		/* Push the return address.  */
-
-	/* Jump to waitpid; it will return to our caller.  */
-	jmp ___waitpid
-
-weak_alias (__wait, wait)