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-rw-r--r--libc/sysdeps/linux/common/glibcstat.h68
-rw-r--r--libc/sysdeps/linux/i386/Makefile2
-rw-r--r--libc/sysdeps/linux/i386/bits/uio.h46
-rw-r--r--libc/sysdeps/linux/i386/clone.S87
4 files changed, 202 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/common/glibcstat.h b/libc/sysdeps/linux/common/glibcstat.h
new file mode 100644
index 000000000..f5a2e7c91
--- /dev/null
+++ b/libc/sysdeps/linux/common/glibcstat.h
@@ -0,0 +1,68 @@
+/* Copyright (C) 1992, 1995, 1996, 1997 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 _GLIBCSTAT_H
+#define _GLIBCSTAT_H 1
+
+/* Versions of the `struct stat' data structure. */
+#define _STAT_VER_LINUX_OLD 1
+#define _STAT_VER_SVR4 2
+#define _STAT_VER_LINUX 3
+#define _STAT_VER _STAT_VER_LINUX /* The one defined below. */
+
+/* Versions of the `xmknod' interface. */
+#define _MKNOD_VER_LINUX 1
+#define _MKNOD_VER_SVR4 2
+#define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */
+
+typedef unsigned long long int __glibc_dev_t;
+typedef unsigned long int __glibc_ino_t;
+typedef unsigned int __glibc_mode_t;
+typedef unsigned int __glibc_nlink_t;
+typedef unsigned int __glibc_uid_t;
+typedef unsigned int __glibc_gid_t;
+typedef long int __glibc_off_t;
+typedef long int __glibc_time_t;
+
+struct glibcstat
+ {
+ __glibc_dev_t st_dev; /* Device. */
+ unsigned short int __pad1;
+ __glibc_ino_t st_ino; /* File serial number. */
+ __glibc_mode_t st_mode; /* File mode. */
+ __glibc_nlink_t st_nlink; /* Link count. */
+ __glibc_uid_t st_uid; /* User ID of the file's owner. */
+ __glibc_gid_t st_gid; /* Group ID of the file's group.*/
+ __glibc_dev_t st_rdev; /* Device number, if device. */
+ unsigned short int __pad2;
+ __glibc_off_t st_size; /* Size of file, in bytes. */
+ unsigned long int st_blksize; /* Optimal block size for I/O. */
+#define _STATBUF_ST_BLKSIZE /* Tell code we have this member. */
+
+ unsigned long int st_blocks; /* Number of 512-byte blocks allocated. */
+ __glibc_time_t st_atime; /* Time of last access. */
+ unsigned long int __unused1;
+ __glibc_time_t st_mtime; /* Time of last modification. */
+ unsigned long int __unused2;
+ __glibc_time_t st_ctime; /* Time of last status change. */
+ unsigned long int __unused3;
+ unsigned long int __unused4;
+ unsigned long int __unused5;
+ };
+
+#endif /* glibcstat.h */
diff --git a/libc/sysdeps/linux/i386/Makefile b/libc/sysdeps/linux/i386/Makefile
index 4db2b57fc..57fed3bf4 100644
--- a/libc/sysdeps/linux/i386/Makefile
+++ b/libc/sysdeps/linux/i386/Makefile
@@ -15,7 +15,7 @@ LIBC=$(TOPDIR)libc.a
$(CC) $(CFLAGS) -c -o $*.o $<
SSRC=syscalls.S
-OBJ= setjmp.o longjmp.o readdir.o _start.o _exit.o #select.o
+OBJ= setjmp.o longjmp.o readdir.o _start.o _exit.o fork.o #select.o
include makefile.objs
all: $(LIBC)
diff --git a/libc/sysdeps/linux/i386/bits/uio.h b/libc/sysdeps/linux/i386/bits/uio.h
new file mode 100644
index 000000000..38ac17baa
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/uio.h
@@ -0,0 +1,46 @@
+/* Copyright (C) 1996, 1997 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 _SYS_UIO_H
+# error "Never include <bits/uio.h> directly; use <sys/uio.h> instead."
+#endif
+
+
+#include <sys/types.h>
+
+
+/* We should normally use the Linux kernel header file to define this
+ type and macros but this calls for trouble because of the header
+ includes other kernel headers. */
+
+/* Size of object which can be written atomically.
+
+ This macro has different values in different kernel versions. The
+ latest versions of ther kernel use 1024 and this is good choice. Since
+ the C library implementation of readv/writev is able to emulate the
+ functionality even if the currently running kernel does not support
+ this large value the readv/writev call will not fail because of this. */
+#define UIO_MAXIOV 1024
+
+
+/* Structure for scatter/gather I/O. */
+struct iovec
+ {
+ void *iov_base; /* Pointer to data. */
+ size_t iov_len; /* Length of data. */
+ };
diff --git a/libc/sysdeps/linux/i386/clone.S b/libc/sysdeps/linux/i386/clone.S
new file mode 100644
index 000000000..7a2025b53
--- /dev/null
+++ b/libc/sysdeps/linux/i386/clone.S
@@ -0,0 +1,87 @@
+/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@tamu.edu)
+
+ 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. */
+
+/* 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>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+#include <asm-syntax.h>
+
+/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
+
+ .text
+ENTRY(__clone)
+ /* Sanity check arguments. */
+ movl $-EINVAL,%eax
+ movl 4(%esp),%ecx /* no NULL function pointers */
+#ifdef PIC
+ jecxz SYSCALL_ERROR_LABEL
+#else
+ testl %ecx,%ecx
+ jz SYSCALL_ERROR_LABEL
+#endif
+ movl 8(%esp),%ecx /* no NULL stack pointers */
+#ifdef PIC
+ jecxz SYSCALL_ERROR_LABEL
+#else
+ testl %ecx,%ecx
+ jz SYSCALL_ERROR_LABEL
+#endif
+
+ /* Insert the argument onto the new stack. */
+ subl $8,%ecx
+ movl 16(%esp),%eax /* no negative argument counts */
+ movl %eax,4(%ecx)
+
+ /* Save the function pointer as the zeroth argument.
+ It will be popped off in the child in the ebx frobbing below. */
+ movl 4(%esp),%eax
+ movl %eax,0(%ecx)
+
+ /* Do the system call */
+ pushl %ebx
+ movl 16(%esp),%ebx
+ movl $SYS_ify(clone),%eax
+ int $0x80
+ popl %ebx
+
+ test %eax,%eax
+ jl SYSCALL_ERROR_LABEL
+ jz thread_start
+
+L(pseudo_end):
+ ret
+
+thread_start:
+ subl %ebp,%ebp /* terminate the stack frame */
+ call *%ebx
+#ifdef PIC
+ call L(here)
+L(here):
+ popl %ebx
+ addl $_GLOBAL_OFFSET_TABLE_+[.-L(here)], %ebx
+#endif
+ pushl %eax
+ call JUMPTARGET (_exit)
+
+PSEUDO_END (__clone)
+
+weak_alias (__clone, clone)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 01:08:55 +0000