diff options
25 files changed, 1312 insertions, 0 deletions
diff --git a/extra/Configs/Config.microblaze b/extra/Configs/Config.microblaze new file mode 100644 index 000000000..abcd9300e --- /dev/null +++ b/extra/Configs/Config.microblaze @@ -0,0 +1,49 @@ +# +# For a description of the syntax of this configuration file, +# see extra/config/Kconfig-language.txt +# + +mainmenu "uClibc C Library Configuration" + +menu "Target Architecture Features and Options" + +config ARCH_CFLAGS + string + +config ARCH_LDFLAGS + string + +config LIBGCC_CFLAGS + string + +config HAVE_ELF + bool + default y + +config ARCH_HAS_NO_MMU + bool + default y + +config ARCH_HAS_NO_FPU + bool + default y + +config ARCH_HAS_C_SYMBOL_PREFIX + bool + default y + +config HAVE_NO_PIC + bool + default y + +config CROSS + string + default "mb-" + +source "extra/Configs/Config.in.arch" + +endmenu + +source "extra/Configs/Config.in" + + diff --git a/extra/Configs/Config.microblaze.default b/extra/Configs/Config.microblaze.default new file mode 100644 index 000000000..4b8925375 --- /dev/null +++ b/extra/Configs/Config.microblaze.default @@ -0,0 +1,59 @@ +# +# Automatically generated make config: don't edit +# + +# +# Target Architecture Features and Options +# +HAVE_ELF=y +ARCH_HAS_NO_MMU=y +ARCH_HAS_NO_FPU=y +ARCH_HAS_C_SYMBOL_PREFIX=y +HAVE_NO_PIC=y +CROSS="mb-" +UCLIBC_HAS_FLOATS=y +UCLIBC_HAS_SOFT_FLOAT=y +# DO_C99_MATH is not set +WARNINGS="-Wall" +KERNEL_SOURCE="/home/jwilliam/uClinux-dist/linux-2.4.x" +UCLIBC_UCLINUX_BROKEN_MUNMAP=y +EXCLUDE_BRK=y +C_SYMBOL_PREFIX="_" + +# +# General Library Settings +# +# UCLIBC_HAS_THREADS is not set +UCLIBC_HAS_LFS=y +MALLOC=y +# MALLOC_930716 is not set +HAS_SHADOW=y +UCLIBC_HAS_REGEX=y +UNIX98PTY_ONLY=y +# ASSUME_DEVPTS is not set + +# +# Networking Support +# +UCLIBC_HAS_IPV6=y +UCLIBC_HAS_RPC=y +UCLIBC_HAS_FULL_RPC=y + +# +# String and Stdio Support +# +# UCLIBC_HAS_WCHAR is not set +USE_OLD_VFPRINTF=y + +# +# Library Installation Options +# +DEVEL_PREFIX="/usr/local/tools/microblaze-elf-gcc" +SYSTEM_DEVEL_PREFIX="/usr/local" +DEVEL_TOOL_PREFIX="$(DEVEL_PREFIX)" + +# +# uClibc hacking options +# +DODEBUG=y +# DOASSERTS is not set diff --git a/libc/sysdeps/linux/microblaze/Makefile b/libc/sysdeps/linux/microblaze/Makefile new file mode 100644 index 000000000..cc098014e --- /dev/null +++ b/libc/sysdeps/linux/microblaze/Makefile @@ -0,0 +1,65 @@ +# Makefile for uClibc +# +# Copyright (C) 2001,2002 NEC Corporation +# Copyright (C) 2001,2002 Miles Bader <miles@gnu.org> +# +# This program 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. +# +# This program 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 this program; if not, write to the Free Software Foundation, Inc., +# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +TOPDIR=../../../../ +include $(TOPDIR)Rules.mak + +CFLAGS += -I.. +SFLAGS = $(CFLAGS) -D__ASSEMBLER -DASM_GLOBAL_DIRECTIVE=.globl + +TARGET_MACHINE_TYPE=$(shell $(CC) -dumpmachine) + +CRT0_SRC = crt0.S +CRT0_OBJ = crt0.o crt1.o + +SSRC = setjmp.S __longjmp.S vfork.S +SOBJS = $(patsubst %.S,%.o, $(SSRC)) + +CSRC = _mmap.c syscall.c clone.c +COBJS = $(patsubst %.c,%.o, $(CSRC)) + +OBJS = $(SOBJS) $(COBJS) + + +all: $(OBJS) $(LIBC) + +$(LIBC): ar-target + +ar-target: $(OBJS) $(CRT0_OBJ) + $(AR) $(ARFLAGS) $(LIBC) $(OBJS) + cp $(CRT0_OBJ) $(TOPDIR)lib/ + +$(CRT0_OBJ): $(CRT0_SRC) + $(CC) $(CFLAGS) -DL_$* $< -c -o $*.o + $(STRIPTOOL) -x -R .note -R .comment $*.o + +$(SOBJS): %.o : %.S + $(CC) $(SFLAGS) -c $< -o $@ + $(STRIPTOOL) -x -R .note -R .comment $*.o + +$(COBJS): %.o : %.c + $(CC) $(CFLAGS) -c $< -o $@ + $(STRIPTOOL) -x -R .note -R .comment $*.o + +headers: + +clean: + rm -f *.[oa] *~ core + rm -f bits/sysnum.h + diff --git a/libc/sysdeps/linux/microblaze/__longjmp.S b/libc/sysdeps/linux/microblaze/__longjmp.S new file mode 100644 index 000000000..e87a6f6a3 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/__longjmp.S @@ -0,0 +1,47 @@ +/* + * libc/sysdeps/linux/microblaze/longjmp.S -- `longjmp' for microblaze + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001 NEC Corporation + * Copyright (C) 2001 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + +#include <clinkage.h> + + .text +C_ENTRY(__longjmp): + /* load registers from memory to r5 (arg0)*/ + lwi r1, r5, 0 + lwi r15, r5, 4 + lwi r18, r5, 8 + lwi r19, r5, 12 + lwi r20, r5, 16 + lwi r21, r5, 20 + lwi r22, r5, 24 + lwi r23, r5, 28 + lwi r24, r5, 32 + lwi r25, r5, 36 + lwi r26, r5, 40 + lwi r27, r5, 44 + lwi r28, r5, 48 + lwi r29, r5, 52 + lwi r30, r5, 56 + + addi r3, r0, 1 // return val + rtsd r15, 8 // normal return + nop + +C_END(__longjmp) + +.weak C_SYMBOL_NAME(__sigprocmask) +C_SYMBOL_NAME(__sigprocmask) = C_SYMBOL_NAME(sigprocmask) diff --git a/libc/sysdeps/linux/microblaze/_mmap.c b/libc/sysdeps/linux/microblaze/_mmap.c new file mode 100644 index 000000000..fbfcca3a8 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/_mmap.c @@ -0,0 +1,9 @@ +/* Use new style mmap for microblaze */ + +#include <unistd.h> +#include <errno.h> +#include <sys/mman.h> +#include <sys/syscall.h> + +_syscall6 (__ptr_t, mmap, __ptr_t, addr, size_t, len, int, prot, + int, flags, int, fd, __off_t, offset); diff --git a/libc/sysdeps/linux/microblaze/bits/byteswap.h b/libc/sysdeps/linux/microblaze/bits/byteswap.h new file mode 100644 index 000000000..9b6a5d722 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/byteswap.h @@ -0,0 +1,41 @@ +/* + * libc/sysdeps/linux/microblaze/bits/byteswap.h -- Macros to swap the order + * of bytes in integer values + * + * Copyright (C) 2001 NEC Corporation + * Copyright (C) 2001 Miles Bader <miles@gnu.org> + * Copyright (C) 1997,1998,2001 Free Software Foundation, Inc. + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + */ + +#if !defined _BYTESWAP_H && !defined _NETINET_IN_H +# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." +#endif + +/* Swap bytes in 16 bit value. */ +#define __bswap_constant_16(x) \ + ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) + +# define __bswap_16(x) __bswap_constant_16 (x) + +/* Swap bytes in 32 bit value. */ +#define __bswap_constant_32(x) \ + ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ + (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) + +# define __bswap_32(x) __bswap_constant_32 (x) + +#if defined __GNUC__ && __GNUC__ >= 2 +/* Swap bytes in 64 bit value. */ +# define __bswap_64(x) \ + (__extension__ \ + ({ union { unsigned long long int __ll; \ + unsigned long int __l[2]; } __bswap_64_v, __bswap_64_r; \ + __bswap_64_v.__ll = (x); \ + __bswap_64_r.__l[0] = __bswap_32 (__bswap_64_v.__l[1]); \ + __bswap_64_r.__l[1] = __bswap_32 (__bswap_64_v.__l[0]); \ + __bswap_64_r.__ll; })) +#endif diff --git a/libc/sysdeps/linux/microblaze/bits/endian.h b/libc/sysdeps/linux/microblaze/bits/endian.h new file mode 100644 index 000000000..a1012a3f1 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/endian.h @@ -0,0 +1,20 @@ +/* + * libc/sysdeps/linux/microblaze/bits/endian.h -- Define processor endianess + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001 NEC Corporation + * Copyright (C) 2001 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + * Microblaze port by John Williams + */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif + +#define __BYTE_ORDER __BIG_ENDIAN diff --git a/libc/sysdeps/linux/microblaze/bits/fcntl.h b/libc/sysdeps/linux/microblaze/bits/fcntl.h new file mode 100644 index 000000000..4b41b4715 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/fcntl.h @@ -0,0 +1,180 @@ +/* O_*, F_*, FD_* bit values for Linux. + Copyright (C) 2000 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _FCNTL_H +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." +#endif + + +#include <sys/types.h> + +/* open/fcntl - O_SYNC is only implemented on blocks devices and on files + located on an ext2 file system */ +#define O_ACCMODE 0003 +#define O_RDONLY 00 +#define O_WRONLY 01 +#define O_RDWR 02 +#define O_CREAT 0100 /* not fcntl */ +#define O_EXCL 0200 /* not fcntl */ +#define O_NOCTTY 0400 /* not fcntl */ +#define O_TRUNC 01000 /* not fcntl */ +#define O_APPEND 02000 +#define O_NONBLOCK 04000 +#define O_NDELAY O_NONBLOCK +#define O_SYNC 010000 +#define O_FSYNC O_SYNC +#define O_ASYNC 020000 + +#ifdef __USE_GNU +# define O_DIRECTORY 040000 /* Must be a directory. */ +# define O_NOFOLLOW 0100000 /* Do not follow links. */ +# define O_DIRECT 0200000 /* Direct disk access. */ +# define O_STREAMING 04000000/* streaming access */ +#endif + +/* For now Linux has synchronisity options for data and read operations. + We define the symbols here but let them do the same as O_SYNC since + this is a superset. */ +#if defined __USE_POSIX199309 || defined __USE_UNIX98 +# define O_DSYNC O_SYNC /* Synchronize data. */ +# define O_RSYNC O_SYNC /* Synchronize read operations. */ +#endif + +#ifdef __USE_LARGEFILE64 +# define O_LARGEFILE 0400000 +#endif + +/* Values for the second argument to `fcntl'. */ +#define F_DUPFD 0 /* Duplicate file descriptor. */ +#define F_GETFD 1 /* Get file descriptor flags. */ +#define F_SETFD 2 /* Set file descriptor flags. */ +#define F_GETFL 3 /* Get file status flags. */ +#define F_SETFL 4 /* Set file status flags. */ +#ifndef __USE_FILE_OFFSET64 +# define F_GETLK 5 /* Get record locking info. */ +# define F_SETLK 6 /* Set record locking info (non-blocking). */ +# define F_SETLKW 7 /* Set record locking info (blocking). */ +#else +# define F_GETLK F_GETLK64 /* Get record locking info. */ +# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/ +# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */ +#endif +#define F_GETLK64 12 /* Get record locking info. */ +#define F_SETLK64 13 /* Set record locking info (non-blocking). */ +#define F_SETLKW64 14 /* Set record locking info (blocking). */ + +#if defined __USE_BSD || defined __USE_XOPEN2K +# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */ +# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */ +#endif + +#ifdef __USE_GNU +# define F_SETSIG 10 /* Set number of signal to be sent. */ +# define F_GETSIG 11 /* Get number of signal to be sent. */ +#endif + +#ifdef __USE_GNU +# define F_SETLEASE 1024 /* Set a lease. */ +# define F_GETLEASE 1025 /* Enquire what lease is active. */ +# define F_NOTIFY 1026 /* Request notfications on a directory. */ +#endif + +/* For F_[GET|SET]FL. */ +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */ + +/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */ +#define F_RDLCK 0 /* Read lock. */ +#define F_WRLCK 1 /* Write lock. */ +#define F_UNLCK 2 /* Remove lock. */ + +/* For old implementation of bsd flock(). */ +#define F_EXLCK 4 /* or 3 */ +#define F_SHLCK 8 /* or 4 */ + +#ifdef __USE_BSD +/* Operations for bsd flock(), also used by the kernel implementation. */ +# define LOCK_SH 1 /* shared lock */ +# define LOCK_EX 2 /* exclusive lock */ +# define LOCK_NB 4 /* or'd with one of the above to prevent + blocking */ +# define LOCK_UN 8 /* remove lock */ +#endif + +#ifdef __USE_GNU +# define LOCK_MAND 32 /* This is a mandatory flock: */ +# define LOCK_READ 64 /* ... which allows concurrent read operations. */ +# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */ +# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */ +#endif + +#ifdef __USE_GNU +/* Types of directory notifications that may be requested with F_NOTIFY. */ +# define DN_ACCESS 0x00000001 /* File accessed. */ +# define DN_MODIFY 0x00000002 /* File modified. */ +# define DN_CREATE 0x00000004 /* File created. */ +# define DN_DELETE 0x00000008 /* File removed. */ +# define DN_RENAME 0x00000010 /* File renamed. */ +# define DN_ATTRIB 0x00000020 /* File changed attibutes. */ +# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */ +#endif + +struct flock + { + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ +#ifndef __USE_FILE_OFFSET64 + __off_t l_start; /* Offset where the lock begins. */ + __off_t l_len; /* Size of the locked area; zero means until EOF. */ +#else + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ +#endif + __pid_t l_pid; /* Process holding the lock. */ + }; + +#ifdef __USE_LARGEFILE64 +struct flock64 + { + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ + __pid_t l_pid; /* Process holding the lock. */ + }; +#endif + +/* Define some more compatibility macros to be backward compatible with + BSD systems which did not managed to hide these kernel macros. */ +#ifdef __USE_BSD +# define FAPPEND O_APPEND +# define FFSYNC O_FSYNC +# define FASYNC O_ASYNC +# define FNONBLOCK O_NONBLOCK +# define FNDELAY O_NDELAY +#endif /* Use BSD. */ + +/* Advise to `posix_fadvise'. */ +#ifdef __USE_XOPEN2K +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ +# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ +#endif diff --git a/libc/sysdeps/linux/microblaze/bits/kernel_stat.h b/libc/sysdeps/linux/microblaze/bits/kernel_stat.h new file mode 100644 index 000000000..e8ef01493 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/kernel_stat.h @@ -0,0 +1,62 @@ +/* Stat structure for linux/microblaze*/ + +#ifndef _BITS_STAT_STRUCT_H +#define _BITS_STAT_STRUCT_H + +struct kernel_stat +{ + __kernel_dev_t st_dev; + __kernel_ino_t st_ino; + __kernel_mode_t st_mode; + __kernel_nlink_t st_nlink; + __kernel_uid_t st_uid; + __kernel_gid_t st_gid; + __kernel_dev_t st_rdev; + __kernel_off_t st_size; + unsigned long st_blksize; + unsigned long st_blocks; + unsigned long st_atime; + unsigned long __unused1; + unsigned long st_mtime; + unsigned long __unused2; + unsigned long st_ctime; + unsigned long __unused3; + unsigned long __unused4; + unsigned long __unused5; +}; + +struct kernel_stat64 +{ + __kernel_dev_t st_dev; + unsigned long __unused0; + unsigned long __unused1; + + __kernel_ino64_t st_ino; + + __kernel_mode_t st_mode; + __kernel_nlink_t st_nlink; + + __kernel_uid_t st_uid; + __kernel_gid_t st_gid; + + __kernel_dev_t st_rdev; + unsigned long __unused2; + unsigned long __unused3; + + __kernel_loff_t st_size; + unsigned long st_blksize; + + unsigned long __unused4; /* future possible st_blocks high bits */ + unsigned long st_blocks; /* Number 512-byte blocks allocated. */ + + unsigned long st_atime; + unsigned long __unused5; + + unsigned long st_mtime; + unsigned long __unused6; + + unsigned long st_ctime; + unsigned long __unused7; /* high 32 bits of ctime someday */ +}; + +#endif /* _BITS_STAT_STRUCT_H */ diff --git a/libc/sysdeps/linux/microblaze/bits/kernel_types.h b/libc/sysdeps/linux/microblaze/bits/kernel_types.h new file mode 100644 index 000000000..ad08e7dab --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/kernel_types.h @@ -0,0 +1,54 @@ +/* + * sysdeps/linux/microblaze/bits/kernel_types.h -- Kernel versions of standard types + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001,2002 NEC Corporation + * Copyright (C) 2001,2002 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + * Microblaze port by John Williams + */ + +#ifndef __MICROBLAZE_POSIX_TYPES_H__ +#define __MICROBLAZE_POSIX_TYPES_H__ + +typedef unsigned int __kernel_dev_t; +typedef unsigned long __kernel_ino_t; +typedef unsigned long long __kernel_ino64_t; +typedef unsigned int __kernel_mode_t; +typedef unsigned int __kernel_nlink_t; +typedef long __kernel_off_t; +typedef long long __kernel_loff_t; +typedef int __kernel_pid_t; +typedef unsigned short __kernel_ipc_pid_t; +typedef unsigned int __kernel_uid_t; +typedef unsigned int __kernel_gid_t; +typedef unsigned int __kernel_size_t; +typedef int __kernel_ssize_t; +typedef int __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_suseconds_t; +typedef long __kernel_clock_t; +typedef int __kernel_daddr_t; +typedef char * __kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; + +typedef unsigned short __kernel_old_uid_t; +typedef unsigned short __kernel_old_gid_t; + +typedef struct { +#ifdef __USE_ALL + int val[2]; +#else + int __val[2]; +#endif +} __kernel_fsid_t; + +#endif /* __MICROBLAZE_POSIX_TYPES_H__ */ diff --git a/libc/sysdeps/linux/microblaze/bits/mman.h b/libc/sysdeps/linux/microblaze/bits/mman.h new file mode 100644 index 000000000..8c457158f --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/mman.h @@ -0,0 +1,98 @@ +/* Definitions for POSIX memory map interface. Linux/microblaze version. + Copyright (C) 1997, 1999, 2001, 2002 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* These are the bits used by 4.4 BSD and its derivatives. On systems + (such as GNU) where these facilities are not system services but can be + emulated in the C library, these are the definitions we emulate. */ + +#ifndef _SYS_MMAN_H +# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead." +#endif + +/* The following definitions basically come from the kernel headers. + But the kernel header is not namespace clean. */ + + +/* Protections are chosen from these bits, OR'd together. The + implementation does not necessarily support PROT_EXEC or PROT_WRITE + without PROT_READ. The only guarantees are that no writing will be + allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */ + +#define PROT_READ 0x1 /* Page can be read. */ +#define PROT_WRITE 0x2 /* Page can be written. */ +#define PROT_EXEC 0x4 /* Page can be executed. */ +#define PROT_NONE 0x0 /* Page can not be accessed. */ + +/* Sharing types (must choose one and only one of these). */ +#define MAP_SHARED 0x01 /* Share changes. */ +#define MAP_PRIVATE 0x02 /* Changes are private. */ +#ifdef __USE_MISC +# define MAP_TYPE 0x0f /* Mask for type of mapping. */ +#endif + +/* Other flags. */ +#define MAP_FIXED 0x10 /* Interpret addr exactly. */ +#ifdef __USE_MISC +# define MAP_FILE 0 +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */ +# define MAP_ANON MAP_ANONYMOUS +#endif + +/* These are Linux-specific. */ +#ifdef __USE_MISC +# define MAP_GROWSDOWN 0x0100 /* Stack-like segment. */ +# define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable. */ +# define MAP_LOCKED 0x2000 /* Lock the mapping. */ +# define MAP_NORESERVE 0x4000 /* Don't check for reservations. */ +#endif + +/* Flags to `msync'. */ +#define MS_ASYNC 1 /* Sync memory asynchronously. */ +#define MS_SYNC 4 /* Synchronous memory sync. */ +#define MS_INVALIDATE 2 /* Invalidate the caches. */ + +/* Advice to `madvise'. */ +#ifdef __USE_BSD +# define MADV_NORMAL 0 /* No further special treatment. */ +# define MADV_RANDOM 1 /* Expect random page references. */ +# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define MADV_WILLNEED 3 /* Will need these pages. */ +# define MADV_DONTNEED 4 /* Don't need these pages. */ +#endif + +/* The POSIX people had to invent similar names for the same things. */ +#ifdef __USE_XOPEN2K +# define POSIX_MADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_MADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */ +#endif + + +/* Flags for `mlockall' (can be OR'd together). */ +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */ +#define MCL_FUTURE 2 /* Lock all additions to address + space. */ + +/* Flags for `mremap'. */ +#ifdef __USE_GNU +# define MREMAP_MAYMOVE 1 +#endif diff --git a/libc/sysdeps/linux/microblaze/bits/poll.h b/libc/sysdeps/linux/microblaze/bits/poll.h new file mode 100644 index 000000000..f7a739315 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/poll.h @@ -0,0 +1,43 @@ +/* Copyright (C) 1997, 2001 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_POLL_H +# error "Never use <bits/poll.h> directly; include <sys/poll.h> instead." +#endif + +/* Event types that can be polled for. These bits may be set in `events' + to indicate the interesting event types; they will appear in `revents' + to indicate the status of the file descriptor. */ +#define POLLIN 0x001 /* There is data to read. */ +#define POLLPRI 0x002 /* There is urgent data to read. */ +#define POLLOUT 0x004 /* Writing now will not block. */ + +#ifdef __USE_XOPEN +/* These values are defined in XPG4.2. */ +# define POLLRDNORM 0x040 /* Normal data may be read. */ +# define POLLRDBAND 0x080 /* Priority data may be read. */ +# define POLLWRNORM POLLOUT /* Writing now will not block. */ +# define POLLWRBAND 0x100 /* Priority data may be written. */ +#endif + +/* Event types always implicitly polled for. These bits need not be set in + `events', but they will appear in `revents' to indicate the status of + the file descriptor. */ +#define POLLERR 0x008 /* Error condition. */ +#define POLLHUP 0x010 /* Hung up. */ +#define POLLNVAL 0x020 /* Invalid polling request. */ diff --git a/libc/sysdeps/linux/microblaze/bits/select.h b/libc/sysdeps/linux/microblaze/bits/select.h new file mode 100644 index 000000000..7c787b324 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/select.h @@ -0,0 +1,58 @@ +/* + * include/bits/select.h -- fd_set operations + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001 NEC Corporation + * Copyright (C) 2001 Miles Bader <miles@gnu.org> + * Copyright (C) 1997, 1998 Free Software Foundation, Inc. + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + */ + +#ifndef _SYS_SELECT_H +# error "Never use <bits/select.h> directly; include <sys/select.h> instead." +#endif + +#ifdef __GNUC__ + +/* We don't use `memset' because this would require a prototype and + the array isn't too big. */ +#define __FD_ZERO(s) \ + do { \ + unsigned int __i; \ + fd_set *__arr = (s); \ + for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i) \ + __FDS_BITS (__arr)[__i] = 0; \ + } while (0) + +#define __FD_SET(fd, s) \ + do { \ + int __fd = (fd); \ + unsigned int *__addr = (unsigned int *)&__FDS_BITS (s); \ + *__addr |= (1 << __fd); \ + } while (0) + +#define __FD_CLR(fd, s) \ + do { \ + int __fd = (fd); \ + unsigned int *__addr = (unsigned int *)&__FDS_BITS (s); \ + *__addr &= ~(1 << __fd); \ + } while (0) + +#define __FD_ISSET(fd, s) \ + ({ \ + int __fd = (fd); \ + unsigned int *__addr = (unsigned int *)&__FDS_BITS (s); \ + int res; \ + res = (*__addr & (1 << fd)) ? 1 : 0; \ + }) + +#else /* !__GNUC__ */ + +#define __FD_SET(d, s) (__FDS_BITS (s)[__FDELT(d)] |= __FDMASK(d)) +#define __FD_CLR(d, s) (__FDS_BITS (s)[__FDELT(d)] &= ~__FDMASK(d)) +#define __FD_ISSET(d, s) ((__FDS_BITS (s)[__FDELT(d)] & __FDMASK(d)) != 0) + +#endif /* __GNUC__ */ diff --git a/libc/sysdeps/linux/microblaze/bits/setjmp.h b/libc/sysdeps/linux/microblaze/bits/setjmp.h new file mode 100644 index 000000000..80cddb05d --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/setjmp.h @@ -0,0 +1,38 @@ +/* + * libc/sysdeps/linux/microblaze/bits/setjmp.h -- microblaze version of `jmp_buf' type + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001 NEC Corporation + * Copyright (C) 2001 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#ifndef _SETJMP_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +#ifndef _ASM +typedef struct + { + /* Stack pointer. */ + void *__sp; + + /* Link pointer. */ + void *__lp; + + /* Callee-saved registers r18-r30. */ + int __regs[13]; + } __jmp_buf[1]; +#endif + +#define JB_SIZE (4 * 15) + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((__ptr_t) (address) < &(jmpbuf)[0].__sp) diff --git a/libc/sysdeps/linux/microblaze/bits/syscalls.h b/libc/sysdeps/linux/microblaze/bits/syscalls.h new file mode 100644 index 000000000..62541b873 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/syscalls.h @@ -0,0 +1,19 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + +#include <features.h> + +/* Do something very evil for now. Until we create our own syscall + * macros, short circuit bits/sysnum.h and use asm/unistd.h instead */ +#include <asm/unistd.h> + +/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel + * header files. It also defines the traditional `SYS_<name>' macros for older + * programs. */ +#include <bits/sysnum.h> + +#endif /* _BITS_SYSCALLS_H */ + diff --git a/libc/sysdeps/linux/microblaze/bits/wordsize.h b/libc/sysdeps/linux/microblaze/bits/wordsize.h new file mode 100644 index 000000000..ba643b60a --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/wordsize.h @@ -0,0 +1,19 @@ +/* Copyright (C) 1999 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define __WORDSIZE 32 diff --git a/libc/sysdeps/linux/microblaze/clinkage.h b/libc/sysdeps/linux/microblaze/clinkage.h new file mode 100644 index 000000000..cf5c34b54 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/clinkage.h @@ -0,0 +1,15 @@ +/* + * libc/sysdeps/linux/microblaze/clinkage.h -- Macros for C symbols in assembler + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001 NEC Corporation + * Copyright (C) 2001 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#include <asm/clinkage.h> diff --git a/libc/sysdeps/linux/microblaze/clone.c b/libc/sysdeps/linux/microblaze/clone.c new file mode 100644 index 000000000..f82cd9dc0 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/clone.c @@ -0,0 +1,52 @@ +/* + * libc/sysdeps/linux/microblaze/clone.c -- `clone' syscall for linux/microblaze + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2002,03 NEC Electronics Corporation + * Copyright (C) 2002,03 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + * Microblaze port by John Williams + */ + +#include <errno.h> +#include <sys/syscall.h> + +int +clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg) +{ + register unsigned long rval asm (SYSCALL_RET) = -EINVAL; + + if (fn && child_stack) + { + register unsigned long syscall asm (SYSCALL_NUM); + register unsigned long arg0 asm (SYSCALL_ARG0); + register unsigned long arg1 asm (SYSCALL_ARG1); + + /* Clone this thread. */ + arg0 = flags; + arg1 = (unsigned long)child_stack; + syscall = __NR_clone; + asm volatile ("bralid r17, trap;nop;" + : "=r" (rval), "=r" (syscall) + : "1" (syscall), "r" (arg0), "r" (arg1) + : SYSCALL_CLOBBERS); + + if (rval == 0) + /* In child thread, call FN and exit. */ + { + arg0 = (*fn) (arg); + syscall = __NR_exit; + asm volatile ("bralid r17, trap;nop;" + : "=r" (rval), "=r" (syscall) + : "1" (syscall), "r" (arg0) + : SYSCALL_CLOBBERS); + } + } + + __syscall_return (int, rval); +} diff --git a/libc/sysdeps/linux/microblaze/crt0.S b/libc/sysdeps/linux/microblaze/crt0.S new file mode 100644 index 000000000..67416b329 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/crt0.S @@ -0,0 +1,47 @@ +/* + * libc/sysdeps/linux/microblaze/crt0.S -- Initial program entry point for linux/microblaze + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001,2002 NEC Corporation + * Copyright (C) 2001,2002 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#include <clinkage.h> + +/* Upon entry, the stack contains the following data: + argc, argv[0], ..., argv[argc-1], 0, envp[0], ..., 0 +*/ + + .text +C_ENTRY(_start): + lw r5, r0, r1 // Arg 0: argc + + addi r6, r1, 4 // Arg 1: argv + + // Arg 2: envp + addi r3, r5, 1 // skip argc elements to get envp start + // ...plus the NULL at the end of argv + add r3, r3, r3 // Make word offset + add r3, r3, r3 + add r7, r6, r3 // add to argv to get offset + + // Load SDAs + la r2, r0, C_SYMBOL_NAME(_SDA_BASE_) + la r13, r0, C_SYMBOL_NAME(_SDA2_BASE_) + + // tail-call uclibc's startup routine + brid C_SYMBOL_NAME(__uClibc_main) + nop + + +/* Stick in a dummy reference to `main', so that if an application + is linking when the `main' function is in a static library (.a) + we can be sure that `main' actually gets linked in. */ +L_dummy_main_reference: + .long C_SYMBOL_NAME(main) diff --git a/libc/sysdeps/linux/microblaze/longjmp.S b/libc/sysdeps/linux/microblaze/longjmp.S new file mode 100644 index 000000000..2d9adebe5 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/longjmp.S @@ -0,0 +1,53 @@ +/* + * libc/sysdeps/linux/microblaze/longjmp.S -- `longjmp' for microblaze + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001 NEC Corporation + * Copyright (C) 2001 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + +#include <clinkage.h> + + .text +C_ENTRY(__longjmp): + /* load registers from memory to r5 (arg0)*/ + lwi r1, r5, 0 + lwi r15, r5, 4 + lwi r18, r5, 8 + lwi r19, r5, 12 + lwi r20, r5, 16 + lwi r21, r5, 20 + lwi r22, r5, 24 + lwi r23, r5, 28 + lwi r24, r5, 32 + lwi r25, r5, 36 + lwi r26, r5, 40 + lwi r27, r5, 44 + lwi r28, r5, 48 + lwi r29, r5, 52 + lwi r30, r5, 56 + + addi r3, r0, 1 // return val + rtsd r15, 8 // normal return + nop + +C_END(__longjmp) + +.weak C_SYMBOL_NAME(longjmp) +C_SYMBOL_NAME(longjmp) = C_SYMBOL_NAME(__longjmp) + +.weak C_SYMBOL_NAME(siglongjmp) +C_SYMBOL_NAME(siglongjmp) = C_SYMBOL_NAME(__longjmp) + +.weak C_SYMBOL_NAME(__sigprocmask) +C_SYMBOL_NAME(__sigprocmask) = C_SYMBOL_NAME(sigprocmask) diff --git a/libc/sysdeps/linux/microblaze/setjmp.S b/libc/sysdeps/linux/microblaze/setjmp.S new file mode 100644 index 000000000..7068d4b40 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/setjmp.S @@ -0,0 +1,53 @@ +/* + * libc/sysdeps/linux/microblaze/setjmp.S -- `setjmp' for microblaze + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001,2002 NEC Corporation + * Copyright (C) 2001,2002 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + +#include <clinkage.h> + + .text +C_ENTRY(setjmp): + addi r6, r0, 1 /* Save the signal mask. */ + braid C_SYMBOL_NAME(__sigsetjmp) + nop + + .globl C_SYMBOL_NAME(_setjmp) +C_SYMBOL_NAME(_setjmp): + add r6, r0, r0 /* Don't save the signal mask. */ + + .globl C_SYMBOL_NAME(__sigsetjmp) +C_SYMBOL_NAME(__sigsetjmp): + /* Save registers relative to r5 (arg0)*/ + swi r1, r5, 0 /* stack pointer */ + swi r15, r5, 4 /* link register */ + swi r18, r5, 8 /* assembler temp */ + swi r19, r5, 12 /* now call-preserved regs */ + swi r20, r5, 16 + swi r21, r5, 20 + swi r22, r5, 24 + swi r23, r5, 28 + swi r24, r5, 32 + swi r25, r5, 36 + swi r26, r5, 40 + swi r27, r5, 44 + swi r28, r5, 48 + swi r29, r5, 52 + swi r30, r5, 56 + + /* Make a tail call to __sigjmp_save; it takes the same args. */ + braid C_SYMBOL_NAME(__sigjmp_save) + nop +C_END(setjmp) diff --git a/libc/sysdeps/linux/microblaze/sys/ptrace.h b/libc/sysdeps/linux/microblaze/sys/ptrace.h new file mode 100644 index 000000000..b7a9adf25 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/sys/ptrace.h @@ -0,0 +1,94 @@ +/* `ptrace' debugger support interface. Linux/microblaze version. + Copyright (C) 2001, 2002 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_PTRACE_H +#define _SYS_PTRACE_H 1 + +#include <features.h> + +__BEGIN_DECLS + +/* Type of the REQUEST argument to `ptrace.' */ +enum __ptrace_request +{ + /* Indicate that the process making this request should be traced. + All signals received by this process can be intercepted by its + parent, and its parent can use the other `ptrace' requests. */ + PTRACE_TRACEME = 0, +#define PT_TRACE_ME PTRACE_TRACEME + + /* Return the word in the process's text space at address ADDR. */ + PTRACE_PEEKTEXT = 1, +#define PT_READ_I PTRACE_PEEKTEXT + + /* Return the word in the process's data space at address ADDR. */ + PTRACE_PEEKDATA = 2, +#define PT_READ_D PTRACE_PEEKDATA + + /* Return the word in the process's user area at offset ADDR. */ + PTRACE_PEEKUSER = 3, +#define PT_READ_U PTRACE_PEEKUSER + + /* Write the word DATA into the process's text space at address ADDR. */ + PTRACE_POKETEXT = 4, +#define PT_WRITE_I PTRACE_POKETEXT + + /* Write the word DATA into the process's data space at address ADDR. */ + PTRACE_POKEDATA = 5, +#define PT_WRITE_D PTRACE_POKEDATA + + /* Write the word DATA into the process's user area at offset ADDR. */ + PTRACE_POKEUSER = 6, +#define PT_WRITE_U PTRACE_POKEUSER + + /* Continue the process. */ + PTRACE_CONT = 7, +#define PT_CONTINUE PTRACE_CONT + + /* Kill the process. */ + PTRACE_KILL = 8, +#define PT_KILL PTRACE_KILL + + /* Attach to a process that is already running. */ + PTRACE_ATTACH = 0x10, +#define PT_ATTACH PTRACE_ATTACH + + /* Detach from a process attached to with PTRACE_ATTACH. */ + PTRACE_DETACH = 0x11, +#define PT_DETACH PTRACE_DETACH + + /* Continue and stop at the next (return from) syscall. */ + PTRACE_SYSCALL = 24 +#define PT_SYSCALL PTRACE_SYSCALL +}; + +/* Perform process tracing functions. REQUEST is one of the values + above, and determines the action to be taken. + For all requests except PTRACE_TRACEME, PID specifies the process to be + traced. + + PID and the other arguments described above for the various requests should + appear (those that are used for the particular request) as: + pid_t PID, void *ADDR, int DATA, void *ADDR2 + after REQUEST. */ +extern long int ptrace (enum __ptrace_request __request, ...) __THROW; + +__END_DECLS + +#endif /* _SYS_PTRACE_H */ diff --git a/libc/sysdeps/linux/microblaze/sys/ucontext.h b/libc/sysdeps/linux/microblaze/sys/ucontext.h new file mode 100644 index 000000000..07f0933ff --- /dev/null +++ b/libc/sysdeps/linux/microblaze/sys/ucontext.h @@ -0,0 +1,41 @@ +/* Copyright (C) 1997, 1998, 1999 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> + +/* We need the signal context definitions even if they are not used + included in <signal.h>. */ +#include <bits/sigcontext.h> + +typedef struct sigcontext mcontext_t; + +/* Userlevel context. */ +typedef struct ucontext + { + unsigned long int uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + mcontext_t uc_mcontext; + __sigset_t uc_sigmask; + } ucontext_t; + +#endif /* sys/ucontext.h */ diff --git a/libc/sysdeps/linux/microblaze/syscall.c b/libc/sysdeps/linux/microblaze/syscall.c new file mode 100644 index 000000000..be628a878 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/syscall.c @@ -0,0 +1,51 @@ +/* + * libc/sysdeps/linux/microblaze/syscall.c -- generic syscall function for linux/microblaze + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2002 NEC Corporation + * Copyright (C) 2002 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#include <errno.h> +#include <sys/syscall.h> + +typedef unsigned long arg_t; + +/* Invoke `system call' NUM, passing it the remaining arguments. + This is completely system-dependent, and not often useful. */ +long +syscall (long num, arg_t a1, arg_t a2, arg_t a3, arg_t a4, arg_t a5, arg_t a6) +{ + /* We don't know how many arguments are valid, so A5 and A6 are fetched + off the stack even for (the majority of) system calls with fewer + arguments; hopefully this won't cause any problems. A1-A4 are in + registers, so they're OK. */ + register arg_t a asm (SYSCALL_ARG0) = a1; + register arg_t b asm (SYSCALL_ARG1) = a2; + register arg_t c asm (SYSCALL_ARG2) = a3; + register arg_t d asm (SYSCALL_ARG3) = a4; + register arg_t e asm (SYSCALL_ARG4) = a5; + register arg_t f asm (SYSCALL_ARG5) = a6; + register unsigned long syscall asm (SYSCALL_NUM) = num; + register unsigned long ret asm (SYSCALL_RET); + unsigned long ret_sav; + + *((unsigned long *)0xFFFF4004) = (unsigned int)('+'); + asm ("brlid r17, 08x; nop;" + : "=r" (ret) + : "r" (syscall), "r" (a), "r" (b), "r" (c), "r" (d), "r" (e), "r" (f) + : SYSCALL_CLOBBERS); + + ret_sav=ret; + *((unsigned long *)0xFFFF4004) = (unsigned int)('-'); + + + + __syscall_return (long, ret); +} diff --git a/libc/sysdeps/linux/microblaze/vfork.S b/libc/sysdeps/linux/microblaze/vfork.S new file mode 100644 index 000000000..e264d36f9 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/vfork.S @@ -0,0 +1,45 @@ +/* + * libc/sysdeps/linux/microblaze/vfork.S -- `vfork' syscall for linux/microblaze + * + * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> + * Copyright (C) 2001 NEC Corporation + * Copyright (C) 2001 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + * Microblaze port by John Williams + */ + +#define _ERRNO_H 1 +#include <bits/errno.h> +#define _SYSCALL_H +#include <bits/sysnum.h> + +#include <clinkage.h> + +/* Clone the calling process, but without copying the whole address space. + The calling process is suspended until the new process exits or is + replaced by a call to `execve'. Return -1 for errors, 0 to the new process, + and the process ID of the new process to the old process. */ + +.global C_SYMBOL_NAME(errno) + +C_ENTRY (__vfork): + addi r12, r0, SYS_vfork + bralid r17, 0x08; + nop + addi r4, r3, 125 // minimum err value + blti r4, 1f // is r3 < -125? + rtsd r15, 8 // normal return + nop +1: sub r3, r3, r0 // r3 = -r3 + swi r3, r0, C_SYMBOL_NAME(errno); + rtsd r15, 8 // error return + nop +C_END(__vfork) + +.weak C_SYMBOL_NAME(vfork) +C_SYMBOL_NAME(vfork) = C_SYMBOL_NAME(__vfork) |