diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2015-10-17 11:17:07 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2015-10-19 01:37:11 +0200 |
| commit | 312f482d395b591398296b5472a3884a12716cbd (patch) | |
| tree | 682402fa4c470d4aa7c1334f7616408779559a8f /libc/sysdeps | |
| parent | c807e03c88504cf01508daa6dbae9e93dacfcf3c (diff) | |
lm32: add new architecture
Add support for FPGA systems from Lattice Semiconductor
http://www.latticesemi.com
Merge https://github.com/m-labs/uclibc-lm32.git
Diffstat (limited to 'libc/sysdeps')
22 files changed, 993 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/lm32/Makefile b/libc/sysdeps/linux/lm32/Makefile new file mode 100644 index 000000000..633c91f3e --- /dev/null +++ b/libc/sysdeps/linux/lm32/Makefile @@ -0,0 +1,13 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# + +top_srcdir=../../../../ +top_builddir=../../../../ +all: objs +include $(top_builddir)Rules.mak +include Makefile.arch +include $(top_srcdir)Makerules diff --git a/libc/sysdeps/linux/lm32/Makefile.arch b/libc/sysdeps/linux/lm32/Makefile.arch new file mode 100644 index 000000000..eed9e7ba1 --- /dev/null +++ b/libc/sysdeps/linux/lm32/Makefile.arch @@ -0,0 +1,9 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# + +CSRC := +SSRC := clone.S setjmp.S __longjmp.S vfork.S diff --git a/libc/sysdeps/linux/lm32/__longjmp.S b/libc/sysdeps/linux/lm32/__longjmp.S new file mode 100644 index 000000000..cbb55f01f --- /dev/null +++ b/libc/sysdeps/linux/lm32/__longjmp.S @@ -0,0 +1,40 @@ +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + +#include <libc-symbols.h> + +.text +.global C_SYMBOL_NAME(__longjmp) +.type C_SYMBOL_NAME(__longjmp),@function +.align 4 + +C_SYMBOL_NAME(__longjmp): + /* load registers relative from r5 (arg0) */ + lw r11, (r1+0) + lw r12, (r1+4) + lw r13, (r1+8) + lw r14, (r1+12) + lw r15, (r1+16) + lw r16, (r1+20) + lw r17, (r1+24) + lw r18, (r1+28) + lw r19, (r1+32) + lw r20, (r1+36) + lw r21, (r1+40) + lw r22, (r1+44) + lw r23, (r1+48) + lw r24, (r1+52) + lw r25, (r1+56) + lw gp, (r1+60) + lw fp, (r1+64) + lw sp, (r1+68) + lw ra, (r1+72) + + mv r1, r2 /* copy val */ + bne r1, r0, 1f + mvi r1, 1 /* val was zero, set it to 1 */ +1: + ret + +libc_hidden_def(__longjmp) diff --git a/libc/sysdeps/linux/lm32/bits/endian.h b/libc/sysdeps/linux/lm32/bits/endian.h new file mode 100644 index 000000000..1acee1892 --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/endian.h @@ -0,0 +1,13 @@ +/* This file should define __BYTE_ORDER as appropriate for the machine + in question. See string/endian.h for how to define it. + + If only the stub bits/endian.h applies to a particular configuration, + bytesex.h is generated by running a program on the host machine. + So if cross-compiling to a machine with a different byte order, + the bits/endian.h file for that machine must exist. */ + +#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/lm32/bits/fcntl.h b/libc/sysdeps/linux/lm32/bits/fcntl.h new file mode 100644 index 000000000..44e8f3f5b --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/fcntl.h @@ -0,0 +1,240 @@ +/* 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> +#ifdef __USE_GNU +# include <bits/uio.h> +#endif + +/* 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 0200000 /* Must be a directory. */ +# define O_NOFOLLOW 0400000 /* Do not follow links. */ +# define O_DIRECT 040000 /* Direct disk access. */ +# define O_NOATIME 01000000 /* Do not set atime. */ +# define O_CLOEXEC 02000000 /* set close_on_exec */ +#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 0100000 +#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. */ +# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with + close-on-exit set on new fd. */ +# define F_SETPIPE_SZ 1031 /* Set of pipe page size array */ +# define F_GETPIPE_SZ 1032 /* Get of pipe page size array */ +#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 + + +#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__ +/* Flags for SYNC_FILE_RANGE. */ +# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages + in the range before performing the + write. */ +# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those + dirty pages in the range which are + not presently under writeback. */ +# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in + the range after performing the + write. */ + +/* Flags for SPLICE and VMSPLICE. */ +# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */ +# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing + (but we may still block on the fd + we splice from/to). */ +# define SPLICE_F_MORE 4 /* Expect more data. */ +# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */ +#endif + +__BEGIN_DECLS + +#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__ + +/* Provide kernel hint to read ahead. */ +extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count) + __THROW; + + +/* Selective file content synch'ing. */ +extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to, + unsigned int __flags); + +/* Splice address range into a pipe. */ +extern ssize_t vmsplice (int __fdout, const struct iovec *__iov, + size_t __count, unsigned int __flags); + +/* Splice two files together. */ +extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout, + __off64_t *__offout, size_t __len, + unsigned int __flags); + +/* In-kernel implementation of tee for pipe buffers. */ +extern ssize_t tee (int __fdin, int __fdout, size_t __len, + unsigned int __flags); + +#endif +__END_DECLS + diff --git a/libc/sysdeps/linux/lm32/bits/kernel_stat.h b/libc/sysdeps/linux/lm32/bits/kernel_stat.h new file mode 100644 index 000000000..c998b56c7 --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/kernel_stat.h @@ -0,0 +1,50 @@ +#ifndef _BITS_STAT_STRUCT_H +#define _BITS_STAT_STRUCT_H + +#ifndef _LIBC +#error bits/kernel_stat.h is for internal uClibc use only! +#endif + +struct kernel_stat +{ + unsigned long st_dev; /* Device. */ + unsigned long st_ino; /* File serial number. */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group. */ + unsigned long st_rdev; /* Device number, if device. */ + unsigned long __pad1; + long st_size; /* Size of file, in bytes. */ + int st_blksize; /* Optimal block size for I/O. */ + int __pad2; + long st_blocks; /* Number 512-byte blocks allocated. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ + unsigned int __unused4; + unsigned int __unused5; +}; + +struct kernel_stat64 +{ + unsigned long long st_dev; /* Device. */ + unsigned long long st_ino; /* File serial number. */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group. */ + unsigned long long st_rdev; /* Device number, if device. */ + unsigned long long __pad1; + long long st_size; /* Size of file, in bytes. */ + int st_blksize; /* Optimal block size for I/O. */ + int __pad2; + long long st_blocks; /* Number 512-byte blocks allocated. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ + unsigned int __unused4; + unsigned int __unused5; +}; + +#endif /* _BITS_STAT_STRUCT_H */ diff --git a/libc/sysdeps/linux/lm32/bits/kernel_types.h b/libc/sysdeps/linux/lm32/bits/kernel_types.h new file mode 100644 index 000000000..2c3c6df52 --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/kernel_types.h @@ -0,0 +1,37 @@ +#ifndef __ASM_GENERIC_POSIX_TYPES_H +#define __ASM_GENERIC_POSIX_TYPES_H + +typedef unsigned long __kernel_ino_t; +typedef unsigned int __kernel_mode_t; +typedef unsigned long __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_pid_t; +typedef int __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_timer_t; +typedef int __kernel_clockid_t; +typedef int __kernel_daddr_t; +typedef char * __kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef __kernel_uid_t __kernel_uid32_t; +typedef __kernel_gid_t __kernel_gid32_t; + +typedef __kernel_uid_t __kernel_old_uid_t; +typedef __kernel_gid_t __kernel_old_gid_t; +typedef unsigned int __kernel_old_dev_t; + +typedef long long __kernel_loff_t; + +typedef struct { + int val[2]; +} __kernel_fsid_t; + +#endif /* __ASM_GENERIC_POSIX_TYPES_H */ diff --git a/libc/sysdeps/linux/lm32/bits/setjmp.h b/libc/sysdeps/linux/lm32/bits/setjmp.h new file mode 100644 index 000000000..6798083bd --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/setjmp.h @@ -0,0 +1,24 @@ +#ifndef _BITS_SETJMP_H +#define _BITS_SETJMP_H 1 + +#if !defined _SETJMP_H && !defined _PTHREAD_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +#ifndef _ASM +typedef struct + { + int __regs[15]; /* callee-saved registers r11-r25 */ + void *__gp; /* global pointer */ + void *__fp; /* frame pointer */ + void *__sp; /* stack pointer */ + void *__ra; /* return address */ + } __jmp_buf[1]; +#endif + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)[0].__sp) + +#endif diff --git a/libc/sysdeps/linux/lm32/bits/stackinfo.h b/libc/sysdeps/linux/lm32/bits/stackinfo.h new file mode 100644 index 000000000..695616e86 --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/stackinfo.h @@ -0,0 +1,28 @@ +/* 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. */ + +/* This file contains a bit of information about the stack allocation + of the processor. Since there is no general truth we can't say + anything here. */ + +#ifndef _STACKINFO_H +#define _STACKINFO_H 1 + +#define _STACK_GROWS_DOWN 1 + +#endif /* stackinfo.h */ diff --git a/libc/sysdeps/linux/lm32/bits/syscalls.h b/libc/sysdeps/linux/lm32/bits/syscalls.h new file mode 100644 index 000000000..29569545b --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/syscalls.h @@ -0,0 +1,59 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + + +#ifndef __ASSEMBLER__ + +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ + ({ \ + LOAD_ARGS_##nr (args); \ + register int __ret __asm__("r1"); \ + register int _scno __asm__("r8") = name; \ + __asm__ __volatile__("scall" \ + : "=r" (__ret) \ + : "r"(_scno) ASM_ARGS_##nr \ + : __SYSCALL_CLOBBERS ); \ + __ret; \ + }) + +/* original port had ret >= -125 ?! */ +#define LOAD_ARGS_0() do { } while(0) +#define ASM_ARGS_0 +#define LOAD_ARGS_1(a1) \ + int _a1 = (int)(a1); \ + LOAD_ARGS_0(); \ + register int __a1 __asm__("r1") = _a1 +#define ASM_ARGS_1 ASM_ARGS_0, "0"(__a1) +#define LOAD_ARGS_2(a1, a2) \ + int _a2 = (int)(a2); \ + LOAD_ARGS_1(a1); \ + register int __a2 __asm__("r2") = _a2 +#define ASM_ARGS_2 ASM_ARGS_1, "r"(__a2) +#define LOAD_ARGS_3(a1, a2, a3) \ + int _a3 = (int)(a3); \ + LOAD_ARGS_2(a1, a2); \ + register int __a3 __asm__("r3") = _a3 +#define ASM_ARGS_3 ASM_ARGS_2, "r"(__a3) +#define LOAD_ARGS_4(a1, a2, a3, a4) \ + int _a4 = (int)(a4); \ + LOAD_ARGS_3(a1, a2, a3); \ + register int __a4 __asm__("r4") = _a4 +#define ASM_ARGS_4 ASM_ARGS_3, "r"(__a4) +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + int _a5 = (int)(a5); \ + LOAD_ARGS_4(a1, a2, a3, a4); \ + register int __a5 __asm__("r5") = _a5 +#define ASM_ARGS_5 ASM_ARGS_4, "r"(__a5) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + int _a6 = (int)(a6); \ + LOAD_ARGS_5(a1, a2, a3, a4, a5); \ + register int __a6 __asm__("r6") = _a6 +#define ASM_ARGS_6 ASM_ARGS_5, "r"(__a6) + +#define __SYSCALL_CLOBBERS + +#endif /* __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ diff --git a/libc/sysdeps/linux/lm32/bits/uClibc_arch_features.h b/libc/sysdeps/linux/lm32/bits/uClibc_arch_features.h new file mode 100644 index 000000000..4bab5476d --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/uClibc_arch_features.h @@ -0,0 +1,48 @@ +/* + * Track misc arch-specific features that aren't config options + */ + +#ifndef _BITS_UCLIBC_ARCH_FEATURES_H +#define _BITS_UCLIBC_ARCH_FEATURES_H + +/* instruction used when calling abort() to kill yourself */ +/*#define __UCLIBC_ABORT_INSTRUCTION__ "asm instruction"*/ +#undef __UCLIBC_ABORT_INSTRUCTION__ + +/* can your target use syscall6() for mmap ? */ +#define __UCLIBC_MMAP_HAS_6_ARGS__ + +/* does your target use syscall4() for truncate64 ? (32bit arches only) */ +#undef __UCLIBC_TRUNCATE64_HAS_4_ARGS__ + +/* does your target have a broken create_module() ? */ +#undef __UCLIBC_BROKEN_CREATE_MODULE__ + +/* does your target have to worry about older [gs]etrlimit() ? */ +#undef __UCLIBC_HANDLE_OLDER_RLIMIT__ + +/* does your target have an asm .set ? */ +#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__ + +/* define if target doesn't like .global */ +#undef __UCLIBC_ASM_GLOBAL_DIRECTIVE__ + +/* define if target supports .weak */ +#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__ + +/* define if target supports .weakext */ +#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__ + +/* needed probably only for ppc64 */ +#undef __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__ + +/* define if target supports CFI pseudo ops */ +#undef __UCLIBC_HAVE_ASM_CFI_DIRECTIVES__ + +/* define if target supports IEEE signed zero floats */ +#define __UCLIBC_HAVE_SIGNED_ZERO__ + +/* only weird assemblers generally need this */ +#undef __UCLIBC_ASM_LINE_SEP__ + +#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */ diff --git a/libc/sysdeps/linux/lm32/bits/uClibc_page.h b/libc/sysdeps/linux/lm32/bits/uClibc_page.h new file mode 100644 index 000000000..a2d7ea2c8 --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/uClibc_page.h @@ -0,0 +1,26 @@ +/* Copyright (C) 2004 Erik Andersen + * + * This 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 _UCLIBC_PAGE_H +#define _UCLIBC_PAGE_H + +#define PAGE_SHIFT 12 +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#endif /* _UCLIBC_PAGE_H */ diff --git a/libc/sysdeps/linux/lm32/bits/wordsize.h b/libc/sysdeps/linux/lm32/bits/wordsize.h new file mode 100644 index 000000000..b47eee944 --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/wordsize.h @@ -0,0 +1 @@ +#define __WORDSIZE 32 diff --git a/libc/sysdeps/linux/lm32/clone.S b/libc/sysdeps/linux/lm32/clone.S new file mode 100644 index 000000000..adc8b1a36 --- /dev/null +++ b/libc/sysdeps/linux/lm32/clone.S @@ -0,0 +1,52 @@ +#include <features.h> +#include <sys/syscall.h> +#define _ERRNO_H 1 +#include <bits/errno.h> + +#ifdef __NR_clone + +.text +.global clone +.type clone,@function +.align 4 + +clone: + be r1, r0, 2f + be r2, r0, 2f + + mvi r8, __NR_clone + scall + + mvi r3, -4095 + bgeu r1, r3, 1f + + be r1, r0, __thread_start + + ret + +__thread_start: + mvi fp, 0 + call r2 + + calli HIDDEN_JUMPTARGET(_exit) + + /* Stop the unstoppable. */ +9: + bi 9b + +2: + mvi r1, -EINVAL +1: + addi sp, sp, -8 + sw (sp+4), ra + sw (sp+8), r1 + calli __errno_location + lw r2, (sp+8) + lw ra, (sp+4) + sub r2, r0, r2 + sw (r1+0), r2 + mvi r1, -1 + addi sp, sp, 8 + ret + +#endif /* __NR_clone */ diff --git a/libc/sysdeps/linux/lm32/crt1.S b/libc/sysdeps/linux/lm32/crt1.S new file mode 100644 index 000000000..661a1595f --- /dev/null +++ b/libc/sysdeps/linux/lm32/crt1.S @@ -0,0 +1,21 @@ +.text +.globl _start +.type _start,@function +.type main,@function +.type __uClibc_main,@function + +_start: + mvi fp, 0 /* clear fp */ + mvhi r1, hi(main) /* main */ + ori r1, r1, lo(main) + lw r2, (sp+0) /* argc */ + addi r3, sp, 4 /* argv */ + mvhi r4, hi(_init) /* app_init */ + ori r4, r4, lo(_init) + mvhi r5, hi(_fini) /* app_fini */ + ori r5, r5, lo(_fini) + mvi r6, 0 /* rtld_fini */ + mv r7, sp /* stack_end */ + + calli __uClibc_main + diff --git a/libc/sysdeps/linux/lm32/crti.S b/libc/sysdeps/linux/lm32/crti.S new file mode 100644 index 000000000..8ceb15be9 --- /dev/null +++ b/libc/sysdeps/linux/lm32/crti.S @@ -0,0 +1,17 @@ +.section .init +.global _init +.type _init,@function +.align 4 + +_init: + addi sp, sp, -4 + sw (sp+4), ra + +.section .fini +.global _fini +.type _fini,@function +.align 4 + +_fini: + addi sp, sp, -4 + sw (sp+4), ra diff --git a/libc/sysdeps/linux/lm32/crtn.S b/libc/sysdeps/linux/lm32/crtn.S new file mode 100644 index 000000000..93643ac43 --- /dev/null +++ b/libc/sysdeps/linux/lm32/crtn.S @@ -0,0 +1,11 @@ +.section .init + + lw ra, (sp+4) + addi sp, sp, 4 + ret + +.section .fini + + lw ra, (sp+4) + addi sp, sp, 4 + ret diff --git a/libc/sysdeps/linux/lm32/setjmp.S b/libc/sysdeps/linux/lm32/setjmp.S new file mode 100644 index 000000000..6badd8099 --- /dev/null +++ b/libc/sysdeps/linux/lm32/setjmp.S @@ -0,0 +1,53 @@ +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + +#include <libc-symbols.h> + +.text +.global C_SYMBOL_NAME(setjmp) +.type C_SYMBOL_NAME(setjmp),@function +.align 4 + +C_SYMBOL_NAME(setjmp): + mvi r2, 1 /* save the signal mask */ + bi C_SYMBOL_NAME(__sigsetjmp) + +.text +.global C_SYMBOL_NAME(_setjmp) +.type C_SYMBOL_NAME(_setjmp),@function +.align 4 + +C_SYMBOL_NAME(_setjmp): + mvi r2, 0 /* don't save the signal mask */ + bi C_SYMBOL_NAME(__sigsetjmp) + +.text +.global C_SYMBOL_NAME(__sigsetjmp) +.type C_SYMBOL_NAME(__sigsetjmp),@function +.align 4 + +C_SYMBOL_NAME(__sigsetjmp): + /* save registers relative to r1 (arg0) */ + sw (r1+0), r11 + sw (r1+4), r12 + sw (r1+8), r13 + sw (r1+12), r14 + sw (r1+16), r15 + sw (r1+20), r16 + sw (r1+24), r17 + sw (r1+28), r18 + sw (r1+32), r19 + sw (r1+36), r20 + sw (r1+40), r21 + sw (r1+44), r22 + sw (r1+48), r23 + sw (r1+52), r24 + sw (r1+56), r25 + sw (r1+60), gp + sw (r1+64), fp + sw (r1+68), sp + sw (r1+72), ra + + /* make a tail call to __sigjmp_save; it takes the same args */ + bi C_SYMBOL_NAME(__sigjmp_save) diff --git a/libc/sysdeps/linux/lm32/sys/procfs.h b/libc/sysdeps/linux/lm32/sys/procfs.h new file mode 100644 index 000000000..c545fe78e --- /dev/null +++ b/libc/sysdeps/linux/lm32/sys/procfs.h @@ -0,0 +1,128 @@ +/* Copyright (C) 1996, 1997, 1999, 2000, 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_PROCFS_H +#define _SYS_PROCFS_H 1 + +/* This is somewhat modelled after the file of the same name on SVR4 + systems. It provides a definition of the core file format for ELF + used on Linux. It doesn't have anything to do with the /proc file + system, even though Linux has one. + + Anyway, the whole purpose of this file is for GDB and GDB only. + Don't read too much into it. Don't use it for anything other than + GDB unless you know what you are doing. */ + +#include <features.h> +#include <sys/time.h> +#include <sys/types.h> + + +/* Type for a general-purpose register. */ +#ifndef ELF_GREG_T +#define ELF_GREG_T +typedef unsigned long elf_greg_t; +#endif + +#define ELF_NGREG 32 + +#ifndef ELF_GREGSET_T +#define ELF_GREGSET_T +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; +#endif + +/* Register set for the floating-point registers. */ +#ifndef ELF_FPREGSET_T +#define ELF_FPREGSET_T +typedef elf_greg_t elf_fpregset_t; +#endif + +struct elf_siginfo +{ + int si_signo; /* signal number */ + int si_code; /* extra code */ + int si_errno; /* errno */ +}; + + +/* + * Definitions to generate Intel SVR4-like core files. + * These mostly have the same names as the SVR4 types with "elf_" + * tacked on the front to prevent clashes with linux definitions, + * and the typedef forms have been avoided. This is mostly like + * the SVR4 structure, but more Linuxy, with things that Linux does + * not support and which gdb doesn't really use excluded. + * Fields present but not used are marked with "XXX". + */ +struct elf_prstatus +{ + struct elf_siginfo pr_info; /* Info associated with signal */ + short pr_cursig; /* Current signal */ + unsigned long pr_sigpend; /* Set of pending signals */ + unsigned long pr_sighold; /* Set of held signals */ + __kernel_pid_t pr_pid; + __kernel_pid_t pr_ppid; + __kernel_pid_t pr_pgrp; + __kernel_pid_t pr_sid; + struct timeval pr_utime; /* User time */ + struct timeval pr_stime; /* System time */ + struct timeval pr_cutime; /* Cumulative user time */ + struct timeval pr_cstime; /* Cumulative system time */ + elf_gregset_t pr_reg; /* GP registers */ + int pr_fpvalid; /* True if math co-processor being used. */ +}; + +#define ELF_PRARGSZ (80) /* Number of chars for args */ + +struct elf_prpsinfo +{ + char pr_state; /* numeric process state */ + char pr_sname; /* char for pr_state */ + char pr_zomb; /* zombie */ + char pr_nice; /* nice val */ + unsigned long pr_flag; /* flags */ + __kernel_uid_t pr_uid; + __kernel_gid_t pr_gid; + __kernel_pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; + /* Lots missing */ + char pr_fname[16]; /* filename of executable */ + char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ +}; + + +/* The rest of this file provides the types for emulation of the + Solaris <proc_service.h> interfaces that should be implemented by + users of libthread_db. */ + +/* Addresses. */ +typedef void *psaddr_t; + +/* Register sets. Linux has different names. */ +typedef elf_gregset_t prgregset_t; +typedef elf_fpregset_t prfpregset_t; + +/* We don't have any differences between processes and threads, + therefore have only one PID type. */ +typedef __kernel_pid_t lwpid_t; + +/* Process status and info. In the end we do provide typedefs for them. */ +typedef struct elf_prstatus prstatus_t; +typedef struct elf_prpsinfo prpsinfo_t; + + +#endif /* sys/procfs.h */ diff --git a/libc/sysdeps/linux/lm32/sys/ucontext.h b/libc/sysdeps/linux/lm32/sys/ucontext.h new file mode 100644 index 000000000..366158f86 --- /dev/null +++ b/libc/sysdeps/linux/lm32/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 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/lm32/sys/user.h b/libc/sysdeps/linux/lm32/sys/user.h new file mode 100644 index 000000000..e8a8aaa95 --- /dev/null +++ b/libc/sysdeps/linux/lm32/sys/user.h @@ -0,0 +1,40 @@ +/* Copyright (C) 1998 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_USER_H + +#define _SYS_USER_H 1 +#include <features.h> + +#include <asm/ptrace.h> + +struct user { + struct pt_regs regs; /* entire machine state */ + size_t u_tsize; /* text size (pages) */ + size_t u_dsize; /* data size (pages) */ + size_t u_ssize; /* stack size (pages) */ + unsigned long start_code; /* text starting address */ + unsigned long start_data; /* data starting address */ + unsigned long start_stack; /* stack starting address */ + long int signal; /* signal causing core dump */ + struct regs * u_ar0; /* help gdb find registers */ + unsigned long magic; /* identifies a core file */ + char u_comm[32]; /* user command name */ +}; + +#endif /* sys/user.h */ diff --git a/libc/sysdeps/linux/lm32/vfork.S b/libc/sysdeps/linux/lm32/vfork.S new file mode 100644 index 000000000..f651ba6f8 --- /dev/null +++ b/libc/sysdeps/linux/lm32/vfork.S @@ -0,0 +1,42 @@ +#include <features.h> + +#define _ERRNO_H +#include <bits/errno.h> +#include <asm/unistd.h> +#define _SIGNAL_H +#include <bits/signum.h> + +#define CLONE_VM 0x00000100 /* set if VM shared between processes */ +#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to */ + +.text +.global __vfork +.hidden __vfork +.type __vfork,%function +.align 4 + +__vfork: + mvi r2, 0 + mvi r3, CLONE_VFORK | CLONE_VM | SIGCHLD + mvi r8, __NR_clone + scall + + mvi r2, -4096 + bgeu r2, r1, 1f + + addi sp, sp, -8 + sw (sp+4), ra + sw (sp+8), r1 + calli __errno_location + lw r2, (sp+8) + lw ra, (sp+4) + sub r2, r0, r2 + sw (r1+0), r2 + addi sp, sp, 8 + mvi r1, -1 +1: + ret + +.size __vfork,.-__vfork +weak_alias(__vfork,vfork) +libc_hidden_weak(vfork) |