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-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
-rw-r--r--sysdeps/unix/sysv/i386/signal.S31
-rw-r--r--sysdeps/unix/sysv/i386/sigreturn.S27
-rw-r--r--sysdeps/unix/sysv/i386/sysdep.h4
-rw-r--r--sysdeps/unix/sysv/i386/time.S26
8 files changed, 269 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/i386/linux/socket.S b/sysdeps/unix/sysv/i386/linux/socket.S
new file mode 100644
index 0000000000..9f59bad095
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/linux/socket.S
@@ -0,0 +1,55 @@
+/* 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
new file mode 100644
index 0000000000..ed3a2782a9
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/linux/sysdep.S
@@ -0,0 +1,38 @@
+/* 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
new file mode 100644
index 0000000000..298a0e4c5b
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/linux/sysdep.h
@@ -0,0 +1,57 @@
+/* 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
new file mode 100644
index 0000000000..4be64c47c9
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/linux/wait.S
@@ -0,0 +1,31 @@
+/* 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)
diff --git a/sysdeps/unix/sysv/i386/signal.S b/sysdeps/unix/sysv/i386/signal.S
new file mode 100644
index 0000000000..14ef77bdc5
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/signal.S
@@ -0,0 +1,31 @@
+/* Copyright (C) 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>
+
+/* This is just a standard system call, except we need to load %edx
+ with the address of the `__sigreturn' function. */
+
+ .globl syscall_error
+ .globl C_SYMBOL_NAME(__sigreturn)
+ENTRY (signal)
+ lea SYS_signal, %eax
+ lea C_SYMBOL_NAME(__sigreturn), %edx
+ .byte 0x9a, 0, 0, 0, 0, 7, 0 /* lcall $7, $0 -- GAS bug. */
+ jb syscall_error
+ ret
diff --git a/sysdeps/unix/sysv/i386/sigreturn.S b/sysdeps/unix/sysv/i386/sigreturn.S
new file mode 100644
index 0000000000..be1c6b89bf
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/sigreturn.S
@@ -0,0 +1,27 @@
+/* Copyright (C) 1994, 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>
+
+.text
+ENTRY (__sigreturn)
+ addl $4, %esp /* Pop the return PC. */
+ lcall $0xf, $0 /* Do the magic sigreturn trap. */
+ /* NOTREACHED */
+
+weak_alias (__sigreturn, sigreturn)
diff --git a/sysdeps/unix/sysv/i386/sysdep.h b/sysdeps/unix/sysv/i386/sysdep.h
new file mode 100644
index 0000000000..fedd5ea825
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/sysdep.h
@@ -0,0 +1,4 @@
+/* System V does not precede the asm names of C symbols with a `_'. */
+#define NO_UNDERSCORES
+
+#include <sysdeps/unix/i386/sysdep.h>
diff --git a/sysdeps/unix/sysv/i386/time.S b/sysdeps/unix/sysv/i386/time.S
new file mode 100644
index 0000000000..f492141c06
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/time.S
@@ -0,0 +1,26 @@
+/* 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>
+
+SYSCALL (time, 1)
+ movl 4(%esp), %edx /* Put passed pointer in %edx. */
+ testl %edx, %edx /* Is it non-nil? */
+ je null
+ movl %eax, (%edx) /* Yes; store the time there. */
+null: ret