diff options
Diffstat (limited to 'libc')
39 files changed, 2460 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/c6x/Makefile b/libc/sysdeps/linux/c6x/Makefile new file mode 100644 index 000000000..633c91f3e --- /dev/null +++ b/libc/sysdeps/linux/c6x/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/c6x/Makefile.arch b/libc/sysdeps/linux/c6x/Makefile.arch new file mode 100644 index 000000000..3e8dace07 --- /dev/null +++ b/libc/sysdeps/linux/c6x/Makefile.arch @@ -0,0 +1,15 @@ +# 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 := brk.c pread_write.c syscall.c prctl.c +#CSRC := + +SSRC := __longjmp.S bsd-_setjmp.S bsd-setjmp.S clone.S setjmp.S _vfork.S +#SSRC := + +# libc-nonshared-y += $(ARCH_OUT)/_syscall.os + diff --git a/libc/sysdeps/linux/c6x/__longjmp.S b/libc/sysdeps/linux/c6x/__longjmp.S new file mode 100644 index 000000000..b9d9f9d9c --- /dev/null +++ b/libc/sysdeps/linux/c6x/__longjmp.S @@ -0,0 +1,47 @@ + ; + ; Port of uClibc for TMS320C6000 DSP architecture + ; Copyright (C) 2004 Texas Instruments Incorporated + ; Author of TMS320C6000 port: Aurelien Jacquiot + ; + ; 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 + ; + + .global __longjmp + +__longjmp: + LDW .D1T1 *+A4(48),A3 ; return address + MV .D2X A4,B6 ; jmp_buf pointer +|| MV .D1 A4,A6 +|| MV .S2 B4,B2 ; val + + LDW .D1T1 *+A6(0),A10 +|| LDW .D2T2 *+B6(4),B10 +|| [B2] MV .S1X B4,A4 +||[!B2] MVK .L1 1,A4 ; return val or 1 + + LDW .D1T1 *+A6(8),A11 +|| LDW .D2T2 *+B6(12),B11 + LDW .D1T1 *+A6(16),A12 +|| LDW .D2T2 *+B6(20),B12 + LDW .D1T1 *+A6(24),A13 +|| LDW .D2T2 *+B6(28),B13 + LDW .D1T1 *+A6(32),A14 +|| LDW .D2T2 *+B6(36),B14 + LDW .D1T1 *+A6(40),A15 +|| LDW .D2T2 *+B6(44),B15 +|| B .S2X A3 + NOP 5 + +libc_hidden_def(__longjmp) diff --git a/libc/sysdeps/linux/c6x/_vfork.S b/libc/sysdeps/linux/c6x/_vfork.S new file mode 100644 index 000000000..20cb6a52f --- /dev/null +++ b/libc/sysdeps/linux/c6x/_vfork.S @@ -0,0 +1,55 @@ + ; + ; Port of uClibc for TMS320C6000 DSP architecture + ; Copyright (C) 2004 Texas Instruments Incorporated + ; Author of TMS320C6000 port: Aurelien Jacquiot + ; + ; 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 + ; + +; .import __errno_location + .global __vfork + +__vfork: + MVK .S2 190,B0 ; __NR_vfork +#ifndef _TMS320C6400_PLUS + MVC .S2 CSR,B2 + CLR .S2 B2,0,0,B1 + MVC .S2 B1,CSR + MVC .S2 IFR,B1 + SET .S2 B1,6,6,B1 + MVC .S2 B1,ISR + MVC .S2 B2,CSR + NOP +#else + SWE +#endif + + MVK .S2 -4096,B4 + CMPGTU .L2X B4,A4,B2 ; check error + [B2] BNOP .S2 B3,5 + + NEG .S1 A4,A4 + STW .D2T1 A4,*B15--[2] + STW .D2T2 B3,*+B15[1] + CALLP .S2 __errno_location,B3 + LDW .D2T2 *+B15[1],B3 + LDW .D2T1 *++B15[2],A5 + NOP 3 + BNOP .S2 B3,3 + STW .D1T1 A5,*A4 + MVK .L1 -1,A4 + +weak_alias(__vfork,vfork) +libc_hidden_weak(vfork) diff --git a/libc/sysdeps/linux/c6x/bits/byteswap.h b/libc/sysdeps/linux/c6x/bits/byteswap.h new file mode 100644 index 000000000..eff26d54e --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/byteswap.h @@ -0,0 +1,35 @@ +/* + * Port of uClibc for TMS320C6000 DSP architecture + * Copyright (C) 2004 Texas Instruments Incorporated + * Author of TMS320C6000 port: Aurelien Jacquiot + * + * 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 + * + */ + +#ifndef _ASM_BITS_BYTESWAP_H +#define _ASM_BITS_BYTESWAP_H 1 + +#if !defined _BYTESWAP_H && !defined _NETINET_IN_H +# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." +#endif + +#ifdef __GNUC__ +#define __bswap_non_constant_32(x) __builtin_bswap32(x) +#endif + +#include <bits/byteswap-common.h> + +#endif diff --git a/libc/sysdeps/linux/c6x/bits/elf-dsbt.h b/libc/sysdeps/linux/c6x/bits/elf-dsbt.h new file mode 100644 index 000000000..ff8b24bd7 --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/elf-dsbt.h @@ -0,0 +1,123 @@ +/* Copyright (C) 2010 Texas Instruments Incorporated + +Borrowed heavily from frv arch: +Copyright 2003, 2004 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. + +In addition to the permissions in the GNU Lesser General Public +License, the Free Software Foundation gives you unlimited +permission to link the compiled version of this file with other +programs, and to distribute those programs without any restriction +coming from the use of this file. (The GNU Lesser General Public +License restrictions do apply in other respects; for example, they +cover modification of the file, and distribution when not linked +into another program.) + +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 Lesser 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. */ + +#ifndef _BITS_ELF_DSBT_H +#define _BITS_ELF_DSBT_H + +/* These data structures are described in the DSBT ABI. + The kernel passes a process a memory map of logical + load segments. For PIC code to work, all code segments + must be combined into a single mapping while maintaining + their relationship to one another. The same is true for + RW data segments. + + Furthermore, + segment there is an elf32_dsbt_loadseg entry. A pointer to an + elf32_dsbt_loadmap is passed in GR8 at start-up, and a pointer to + an additional such map is passed in GR9 for the interpreter, when + there is one. */ + +#include <elf.h> + +/* This data structure represents a PT_LOAD segment. */ +struct elf32_dsbt_loadseg +{ + /* Core address to which the segment is mapped. */ + Elf32_Addr addr; + /* VMA recorded in the program header. */ + Elf32_Addr p_vaddr; + /* Size of this segment in memory. */ + Elf32_Word p_memsz; +}; + +struct elf32_dsbt_loadmap { + /* Protocol version number, must be zero. */ + Elf32_Word version; + + /* Pointer to DSBT */ + unsigned *dsbt_table; + unsigned dsbt_size; + unsigned dsbt_index; + + /* number of segments */ + Elf32_Word nsegs; + + /* The actual memory map. */ + struct elf32_dsbt_loadseg segs[0]; +}; + +struct elf32_dsbt_loadaddr { + struct elf32_dsbt_loadmap *map; +}; + + +/* Map a pointer's VMA to its corresponding address according to the + load map. */ +static __always_inline void * +__reloc_pointer (void *p, + const struct elf32_dsbt_loadmap *map) +{ + int c; + +#if 0 + if (map->version != 0) + /* Crash. */ + ((void(*)())0)(); +#endif + + /* No special provision is made for NULL. We don't want NULL + addresses to go through relocation, so they shouldn't be in + .rofixup sections, and, if they're present in dynamic + relocations, they shall be mapped to the NULL address without + undergoing relocations. */ + + for (c = 0; c < map->nsegs; c++) + { + unsigned long offset = p - (void*)map->segs[c].p_vaddr; + /* We only check for one-past-the-end for the second segment, + assumed to be the data segment, because other cases are + ambiguous in the absence of padding between segments, and + rofixup already serves as padding between text and data. + Unfortunately, unless we special-case the second segment, + we fail to relocate the _end symbol. */ + if (offset < map->segs[c].p_memsz + || (offset == map->segs[c].p_memsz && c == 1)) + return (char*)map->segs[c].addr + offset; + } + + /* We might want to crash instead. */ + return (void*)-1; +} + +# define __RELOC_POINTER(ptr, loadaddr) \ + (__reloc_pointer ((void*)(ptr), \ + (loadaddr).map)) + +#endif /* _BITS_ELF_DSBT_H */ diff --git a/libc/sysdeps/linux/c6x/bits/endian.h b/libc/sysdeps/linux/c6x/bits/endian.h new file mode 100644 index 000000000..7297f9e2e --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/endian.h @@ -0,0 +1,11 @@ +/* c6x is little-endian by default. */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif + +#ifdef _BIG_ENDIAN +#define __BYTE_ORDER __BIG_ENDIAN +#else +#define __BYTE_ORDER __LITTLE_ENDIAN +#endif diff --git a/libc/sysdeps/linux/c6x/bits/fcntl.h b/libc/sysdeps/linux/c6x/bits/fcntl.h new file mode 100644 index 000000000..6c0d5647f --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/fcntl.h @@ -0,0 +1,235 @@ +/* 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 +#define O_DIRECT 040000 + +#ifdef __USE_GNU +# define O_LARGEFILE 0100000 +# define O_DIRECTORY 0200000 /* Must be a directory. */ +# define O_NOFOLLOW 0400000 /* don't follow links */ +# define O_NOATIME 01000000 +# 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. */ +#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/c6x/bits/kernel_stat.h b/libc/sysdeps/linux/c6x/bits/kernel_stat.h new file mode 100644 index 000000000..9c0bfa640 --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/kernel_stat.h @@ -0,0 +1,52 @@ +#ifndef _BITS_STAT_STRUCT_H +#define _BITS_STAT_STRUCT_H + +/* This file provides whatever this particular arch's kernel thinks + * struct kernel_stat should look like... It turns out each arch has a + * different opinion on the subject... */ + +struct kernel_stat { + unsigned short st_dev; + unsigned short __pad1; + unsigned long st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned short st_rdev; + unsigned short __pad2; + unsigned long st_size; + unsigned long st_blksize; + unsigned long st_blocks; + struct timespec st_atim; + struct timespec st_mtim; + struct timespec st_ctim; + unsigned long __unused4; + unsigned long __unused5; +}; + +struct kernel_stat64 { + unsigned char __pad0[6]; + unsigned short st_dev; + unsigned char __pad1[2]; +#define _HAVE_STAT64___ST_INO + unsigned long __st_ino; + unsigned int st_mode; + unsigned int st_nlink; + unsigned long st_uid; + unsigned long st_gid; + unsigned char __pad2[6]; + unsigned short st_rdev; + unsigned char __pad3[2]; + __off64_t st_size; + unsigned long st_blksize; + unsigned long __pad4; /* future possible st_blocks high bits */ + unsigned long st_blocks; /* Number 512-byte blocks allocated. */ + struct timespec st_atim; + struct timespec st_mtim; + struct timespec st_ctim; + __off64_t st_ino; +}; + +#endif /* _BITS_STAT_STRUCT_H */ + diff --git a/libc/sysdeps/linux/c6x/bits/kernel_types.h b/libc/sysdeps/linux/c6x/bits/kernel_types.h new file mode 100644 index 000000000..5dbd2c226 --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/kernel_types.h @@ -0,0 +1,46 @@ +/* Note that we use the exact same include guard #define names + * as asm/posix_types.h. This will avoid gratuitous conflicts + * with the posix_types.h kernel header, and will ensure that + * our private content, and not the kernel header, will win. + * -Erik + */ +#ifndef __ASM_GENERIC_POSIX_TYPES_H +#define __ASM_GENERIC_POSIX_TYPES_H + +typedef unsigned short __kernel_dev_t; +typedef unsigned long __kernel_ino_t; +typedef unsigned short __kernel_mode_t; +typedef unsigned short __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_pid_t; +typedef unsigned short __kernel_ipc_pid_t; +typedef unsigned short __kernel_uid_t; +typedef unsigned short __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 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 unsigned short __kernel_old_dev_t; +typedef long long __kernel_loff_t; + +typedef struct { +#ifdef __USE_ALL + int val[2]; +#else + int __val[2]; +#endif +} __kernel_fsid_t; + +#endif /* __ASM_GENERIC_POSIX_TYPES_H */ diff --git a/libc/sysdeps/linux/c6x/bits/mathdef.h b/libc/sysdeps/linux/c6x/bits/mathdef.h new file mode 100644 index 000000000..df12adf03 --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/mathdef.h @@ -0,0 +1,39 @@ +/* Copyright (C) 1997, 1998, 1999, 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. */ + +#if !defined _MATH_H && !defined _COMPLEX_H +# error "Never use <bits/mathdef.h> directly; include <math.h> instead" +#endif + +#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF +# define _MATH_H_MATHDEF 1 + +typedef float float_t; +typedef double double_t; + +/* The values returned by `ilogb' for 0 and NaN respectively. */ +# define FP_ILOGB0 (-2147483647 - 1) +# define FP_ILOGBNAN (2147483647) + +#endif /* ISO C99 */ + +#ifndef __NO_LONG_DOUBLE_MATH +/* Signal that we do not really have a `long double'. This disables the + declaration of all the `long double' function variants. */ +# define __NO_LONG_DOUBLE_MATH 1 +#endif diff --git a/libc/sysdeps/linux/c6x/bits/nan.h b/libc/sysdeps/linux/c6x/bits/nan.h new file mode 100644 index 000000000..85225da9f --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/nan.h @@ -0,0 +1,57 @@ +/* `NAN' constant for IEEE 754 machines. + Copyright (C) 1992,1996,1997,1999,2004,2006 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 _MATH_H +# error "Never use <bits/nan.h> directly; include <math.h> instead." +#endif + +/* IEEE Not A Number. */ + +/* + * Copied from the common code and modified for TI tool wrapper. + * Copyright (C) 2010 Texas Instruments Incorporated + */ + +#if __GNUC_PREREQ(3,3) + +# define NAN (__builtin_nanf ("")) + +#elif defined __GNUC__ && ! defined __TI_TOOL_WRAPPER__ + +# define NAN \ + (__extension__ \ + ((union { unsigned __l __attribute__ ((__mode__ (__SI__))); float __d; }) \ + { __l: 0x7fc00000UL }).__d) + +#else + +# include <endian.h> + +# if __BYTE_ORDER == __BIG_ENDIAN +# define __nan_bytes { 0x7f, 0xc0, 0, 0 } +# endif +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define __nan_bytes { 0, 0, 0xc0, 0x7f } +# endif + +static union { unsigned char __c[4]; float __d; } __nan_union + = { __nan_bytes }; +# define NAN (__nan_union.__d) + +#endif /* GCC. */ diff --git a/libc/sysdeps/linux/c6x/bits/poll.h b/libc/sysdeps/linux/c6x/bits/poll.h new file mode 100644 index 000000000..f7a739315 --- /dev/null +++ b/libc/sysdeps/linux/c6x/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/c6x/bits/resource.h b/libc/sysdeps/linux/c6x/bits/resource.h new file mode 100644 index 000000000..57d17821e --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/resource.h @@ -0,0 +1,209 @@ +/* Bit values & structures for resource limits. Linux/m68k version. + Copyright (C) 1994,1996,1997,1998,1999,2000,2001 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_RESOURCE_H +# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead." +#endif + +#include <bits/types.h> + +/* Transmute defines to enumerations. The macro re-definitions are + necessary because some programs want to test for operating system + features with #ifdef RUSAGE_SELF. In ISO C the reflexive + definition is a no-op. */ + +/* Kinds of resource limit. */ +enum __rlimit_resource +{ + /* Per-process CPU limit, in seconds. */ + RLIMIT_CPU = 0, +#define RLIMIT_CPU RLIMIT_CPU + + /* Largest file that can be created, in bytes. */ + RLIMIT_FSIZE = 1, +#define RLIMIT_FSIZE RLIMIT_FSIZE + + /* Maximum size of data segment, in bytes. */ + RLIMIT_DATA = 2, +#define RLIMIT_DATA RLIMIT_DATA + + /* Maximum size of stack segment, in bytes. */ + RLIMIT_STACK = 3, +#define RLIMIT_STACK RLIMIT_STACK + + /* Largest core file that can be created, in bytes. */ + RLIMIT_CORE = 4, +#define RLIMIT_CORE RLIMIT_CORE + + /* Largest resident set size, in bytes. + This affects swapping; processes that are exceeding their + resident set size will be more likely to have physical memory + taken from them. */ + RLIMIT_RSS = 5, +#define RLIMIT_RSS RLIMIT_RSS + + /* Number of open files. */ + RLIMIT_NOFILE = 7, + RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */ +#define RLIMIT_NOFILE RLIMIT_NOFILE +#define RLIMIT_OFILE RLIMIT_OFILE + + /* Address space limit. */ + RLIMIT_AS = 9, +#define RLIMIT_AS RLIMIT_AS + + /* Number of processes. */ + RLIMIT_NPROC = 6, +#define RLIMIT_NPROC RLIMIT_NPROC + + /* Locked-in-memory address space. */ + RLIMIT_MEMLOCK = 8, +#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK + + /* Maximum number of file locks. */ + RLIMIT_LOCKS = 10, +#define RLIMIT_LOCKS RLIMIT_LOCKS + + RLIMIT_NLIMITS = 11, + RLIM_NLIMITS = RLIMIT_NLIMITS +#define RLIMIT_NLIMITS RLIMIT_NLIMITS +#define RLIM_NLIMITS RLIM_NLIMITS +}; + +/* Value to indicate that there is no limit. */ +#ifndef __USE_FILE_OFFSET64 +# define RLIM_INFINITY ((unsigned long)(~0UL)) +#else +# define RLIM_INFINITY 0xffffffffffffffffuLL +#endif + +#ifdef __USE_LARGEFILE64 +# define RLIM64_INFINITY 0xffffffffffffffffuLL +#endif + +/* We can represent all limits. */ +#define RLIM_SAVED_MAX RLIM_INFINITY +#define RLIM_SAVED_CUR RLIM_INFINITY + + +/* Type for resource quantity measurement. */ +#ifndef __USE_FILE_OFFSET64 +typedef __rlim_t rlim_t; +#else +typedef __rlim64_t rlim_t; +#endif +#ifdef __USE_LARGEFILE64 +typedef __rlim64_t rlim64_t; +#endif + +struct rlimit + { + /* The current (soft) limit. */ + rlim_t rlim_cur; + /* The hard limit. */ + rlim_t rlim_max; + }; + +#ifdef __USE_LARGEFILE64 +struct rlimit64 + { + /* The current (soft) limit. */ + rlim64_t rlim_cur; + /* The hard limit. */ + rlim64_t rlim_max; + }; +#endif + +/* Whose usage statistics do you want? */ +enum __rusage_who +{ + /* The calling process. */ + RUSAGE_SELF = 0, +#define RUSAGE_SELF RUSAGE_SELF + + /* All of its terminated child processes. */ + RUSAGE_CHILDREN = -1, +#define RUSAGE_CHILDREN RUSAGE_CHILDREN + + /* Both. */ + RUSAGE_BOTH = -2 +#define RUSAGE_BOTH RUSAGE_BOTH +}; + +#define __need_timeval +#include <bits/time.h> /* For `struct timeval'. */ + +/* Structure which says how much of each resource has been used. */ +struct rusage + { + /* Total amount of user time used. */ + struct timeval ru_utime; + /* Total amount of system time used. */ + struct timeval ru_stime; + /* Maximum resident set size (in kilobytes). */ + long ru_maxrss; + /* Amount of sharing of text segment memory + with other processes (kilobyte-seconds). */ + long ru_ixrss; + /* Amount of data segment memory used (kilobyte-seconds). */ + long ru_idrss; + /* Amount of stack memory used (kilobyte-seconds). */ + long ru_isrss; + /* Number of soft page faults (i.e. those serviced by reclaiming + a page from the list of pages awaiting reallocation. */ + long ru_minflt; + /* Number of hard page faults (i.e. those that required I/O). */ + long ru_majflt; + /* Number of times a process was swapped out of physical memory. */ + long ru_nswap; + /* Number of input operations via the file system. Note: This + and `ru_oublock' do not include operations with the cache. */ + long ru_inblock; + /* Number of output operations via the file system. */ + long ru_oublock; + /* Number of IPC messages sent. */ + long ru_msgsnd; + /* Number of IPC messages received. */ + long ru_msgrcv; + /* Number of signals delivered. */ + long ru_nsignals; + /* Number of voluntary context switches, i.e. because the process + gave up the process before it had to (usually to wait for some + resource to be available). */ + long ru_nvcsw; + /* Number of involuntary context switches, i.e. a higher priority process + became runnable or the current process used up its time slice. */ + long ru_nivcsw; + }; + +/* Priority limits. */ +#define PRIO_MIN -20 /* Minimum priority a process can have. */ +#define PRIO_MAX 20 /* Maximum priority a process can have. */ + +/* The type of the WHICH argument to `getpriority' and `setpriority', + indicating what flavor of entity the WHO argument specifies. */ +enum __priority_which +{ + PRIO_PROCESS = 0, /* WHO is a process ID. */ +#define PRIO_PROCESS PRIO_PROCESS + PRIO_PGRP = 1, /* WHO is a process group ID. */ +#define PRIO_PGRP PRIO_PGRP + PRIO_USER = 2 /* WHO is a user ID. */ +#define PRIO_USER PRIO_USER +}; diff --git a/libc/sysdeps/linux/c6x/bits/setjmp.h b/libc/sysdeps/linux/c6x/bits/setjmp.h new file mode 100644 index 000000000..259e23b34 --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/setjmp.h @@ -0,0 +1,39 @@ +/* + * Port of uClibc for TMS320C6000 DSP architecture + * Copyright (C) 2004 Texas Instruments Incorporated + * Author of TMS320C6000 port: Aurelien Jacquiot + * + * 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 + * + */ + +#ifndef _SETJMP_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +typedef struct { + unsigned long __regs[12]; /* save A10,B10... A15,B15*/ + unsigned long __pc; /* the return address */ +} __jmp_buf[1]; + +/* the stack pointer (B15) */ +#define JP_SP 11 + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)->__regs[JP_SP]) + + diff --git a/libc/sysdeps/linux/c6x/bits/sigcontextinfo.h b/libc/sysdeps/linux/c6x/bits/sigcontextinfo.h new file mode 100644 index 000000000..b7e08cfc9 --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/sigcontextinfo.h @@ -0,0 +1,26 @@ +/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>, 1998. + + 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 SIGCONTEXT int _code, struct sigcontext * +#define SIGCONTEXT_EXTRA_ARGS _code, +#define GET_PC(ctx) ((void *) (ctx)->sc_pc) +#define GET_FRAME(ctx) ((void *) __builtin_frame_address (1)) +#define GET_STACK(ctx) ((void *) (ctx)->sc_usp) +#define CALL_SIGHANDLER(handler, signo, ctx) \ + (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx)) diff --git a/libc/sysdeps/linux/c6x/bits/stackinfo.h b/libc/sysdeps/linux/c6x/bits/stackinfo.h new file mode 100644 index 000000000..9dbf06ae6 --- /dev/null +++ b/libc/sysdeps/linux/c6x/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. */ + +#ifndef _STACKINFO_H +#define _STACKINFO_H 1 + +/* On c6x the stack grows down. */ +#define _STACK_GROWS_DOWN 1 + +#endif /* stackinfo.h */ diff --git a/libc/sysdeps/linux/c6x/bits/stat.h b/libc/sysdeps/linux/c6x/bits/stat.h new file mode 100644 index 000000000..eba31245d --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/stat.h @@ -0,0 +1,174 @@ +/* Copyright (C) 1992,95,96,97,98,99,2000,2001 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_STAT_H +# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead." +#endif + +/* Versions of the `struct stat' data structure. */ +#define _STAT_VER_LINUX_OLD 1 +#define _STAT_VER_KERNEL 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. */ + + +struct stat + { + __dev_t st_dev; /* Device. */ + unsigned short int __pad1; +#ifndef __USE_FILE_OFFSET64 + __ino_t st_ino; /* File serial number. */ +#else + __ino_t __st_ino; /* 32bit file serial number. */ +#endif + __mode_t st_mode; /* File mode. */ + __nlink_t st_nlink; /* Link count. */ + __uid_t st_uid; /* User ID of the file's owner. */ + __gid_t st_gid; /* Group ID of the file's group.*/ + __dev_t st_rdev; /* Device number, if device. */ + unsigned short int __pad2; +#ifndef __USE_FILE_OFFSET64 + __off_t st_size; /* Size of file, in bytes. */ +#else + __off64_t st_size; /* Size of file, in bytes. */ +#endif + __blksize_t st_blksize; /* Optimal block size for I/O. */ + +#ifndef __USE_FILE_OFFSET64 + __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */ +#else + __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ +#endif +#ifdef __USE_MISC + /* Nanosecond resolution timestamps are stored in a format + equivalent to 'struct timespec'. This is the type used + whenever possible but the Unix namespace rules do not allow the + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + 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. */ +# define st_atime st_atim.tv_sec /* Backward compatibility. */ +# define st_mtime st_mtim.tv_sec +# define st_ctime st_ctim.tv_sec +#else + __time_t st_atime; /* Time of last access. */ + unsigned long int st_atimensec; /* Nscecs of last access. */ + __time_t st_mtime; /* Time of last modification. */ + unsigned long int st_mtimensec; /* Nsecs of last modification. */ + __time_t st_ctime; /* Time of last status change. */ + unsigned long int st_ctimensec; /* Nsecs of last status change. */ +#endif +#ifndef __USE_FILE_OFFSET64 + unsigned long __unused4; + unsigned long __unused5; +#else + __ino64_t st_ino; /* File serial number. */ +#endif + }; + +#ifdef __USE_LARGEFILE64 +struct stat64 + { + __dev_t st_dev; /* Device. */ + +#if __WORDSIZE == 64 + __ino64_t st_ino; /* File serial number. */ + __nlink_t st_nlink; /* Link count. */ + __mode_t st_mode; /* File mode. */ +#else + unsigned int __pad1; + __ino_t __st_ino; /* 32bit file serial number. */ + __mode_t st_mode; /* File mode. */ + __nlink_t st_nlink; /* Link count. */ +#endif + __uid_t st_uid; /* User ID of the file's owner. */ + __gid_t st_gid; /* Group ID of the file's group.*/ + __dev_t st_rdev; /* Device number, if device. */ + unsigned short int __pad2; + __off64_t st_size; /* Size of file, in bytes. */ + __blksize_t st_blksize; /* Optimal block size for I/O. */ + + __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ +#ifdef __USE_MISC + /* Nanosecond resolution timestamps are stored in a format + equivalent to 'struct timespec'. This is the type used + whenever possible but the Unix namespace rules do not allow the + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + 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. */ +# define st_atime st_atim.tv_sec /* Backward compatibility. */ +# define st_mtime st_mtim.tv_sec +# define st_ctime st_ctim.tv_sec +#else + __time_t st_atime; /* Time of last access. */ + unsigned long int st_atimensec; /* Nscecs of last access. */ + __time_t st_mtime; /* Time of last modification. */ + unsigned long int st_mtimensec; /* Nsecs of last modification. */ + __time_t st_ctime; /* Time of last status change. */ + unsigned long int st_ctimensec; /* Nsecs of last status change. */ +#endif +#if __WORDSIZE == 64 + long int __unused[3]; +#else + __ino64_t st_ino; /* File serial number. */ +#endif + }; +#endif + +/* Tell code we have these members. */ +#define _STATBUF_ST_BLKSIZE +#define _STATBUF_ST_RDEV + +/* Encoding of the file mode. */ + +#define __S_IFMT 0170000 /* These bits determine file type. */ + +/* File types. */ +#define __S_IFDIR 0040000 /* Directory. */ +#define __S_IFCHR 0020000 /* Character device. */ +#define __S_IFBLK 0060000 /* Block device. */ +#define __S_IFREG 0100000 /* Regular file. */ +#define __S_IFIFO 0010000 /* FIFO. */ +#define __S_IFLNK 0120000 /* Symbolic link. */ +#define __S_IFSOCK 0140000 /* Socket. */ + +/* POSIX.1b objects. Note that these macros always evaluate to zero. But + they do it by enforcing the correct use of the macros. */ +#define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode) + +/* Protection bits. */ + +#define __S_ISUID 04000 /* Set user ID on execution. */ +#define __S_ISGID 02000 /* Set group ID on execution. */ +#define __S_ISVTX 01000 /* Save swapped text after use (sticky). */ +#define __S_IREAD 0400 /* Read by owner. */ +#define __S_IWRITE 0200 /* Write by owner. */ +#define __S_IEXEC 0100 /* Execute by owner. */ diff --git a/libc/sysdeps/linux/c6x/bits/syscalls.h b/libc/sysdeps/linux/c6x/bits/syscalls.h new file mode 100644 index 000000000..382ec5124 --- /dev/null +++ b/libc/sysdeps/linux/c6x/bits/syscalls.h @@ -0,0 +1,182 @@ +#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__ + +#include <errno.h> + +#define SYS_ify(syscall_name) (__NR_##syscall_name) + +#undef __SYSCALL_STRING +# define __SYSCALL_STRING \ + "swe\n\t" \ + "nop\n\t" + +# define __SYSCALL_RES_CHECK (__res < -255 || __res >= 0) + +#define __SYSCALL_CLOBBERS "cc", "memory" + +#define __SYSCALL_RETURN(type) \ + if (__SYSCALL_RES_CHECK) \ + return (type) __res; \ + __set_errno (-__res); \ + return (type) -1; + +#ifndef NOT_IN_libc +#define DEBUG_SYSCALL(name) { \ + char d[64];\ + write( 2, d, snprintf( d, 64, "syscall %d error %d\n", __NR_##name, _inline_sys_result)); \ +} +#else +#define DEBUG_SYSCALL(name) do{} while(0) +#endif + +#undef INLINE_SYSCALL +#define INLINE_SYSCALL(name, nr, args...) \ + ({ unsigned int _inline_sys_result = INTERNAL_SYSCALL (name, , nr, args); \ + if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_inline_sys_result, ), 0)) \ + { \ + __set_errno (INTERNAL_SYSCALL_ERRNO (_inline_sys_result, )); \ + _inline_sys_result = (unsigned int) -1; \ + } \ + (int) _inline_sys_result; }) + +#undef INLINE_SYSCALL_NOERR +#define INLINE_SYSCALL_NOERR(name, nr, args...) \ + ({ unsigned int _inline_sys_result = INTERNAL_SYSCALL (name, , nr, args); \ + (int) _inline_sys_result; }) + +#undef INTERNAL_SYSCALL_DECL +#define INTERNAL_SYSCALL_DECL(err) do { } while (0) + + +#define INTERNAL_SYSCALL( name, err, nr, args...) \ + INTERNAL_SYSCALL_NCS( __NR_##name, err, nr, args ) + + +#define INTERNAL_SYSCALL_NCS(sys_num, err, nr, args...) \ + ({ \ + register long __A4 __asm__("A4"); \ + register long __b0 __asm__("B0") = sys_num; \ + LOAD_ARGS_##nr(args) \ + __asm__ __volatile__(__SYSCALL_STRING \ + : "=a" (__A4) \ + : "b" (__b0) ASM_ARGS_##nr \ + : __SYSCALL_CLOBBERS ); \ + (int)__A4; \ + }) + +#undef INTERNAL_SYSCALL_ERROR_P +#define INTERNAL_SYSCALL_ERROR_P(val, err) \ + ((unsigned int) (val) >= 0xfffff001u) + +#undef INTERNAL_SYSCALL_ERRNO +#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val)) + +#if 0 +# define CALL_ERRNO_LOCATION "call __errno_location;" +#define __CLONE_SYSCALL_STRING \ + "ta 0x10;" \ + "bcs 2f;" \ + " sub %%o1, 1, %%o1;" \ + "and %%A4, %%o1, %%A4;" \ + "1:" \ + ".subsection 2;" \ + "2:" \ + "save %%sp, -192, %%sp;" \ + CALL_ERRNO_LOCATION \ + " nop;" \ + "st %%i0, [%%A4];" \ + "ba 1b;" \ + " restore %%g0, -1, %%A4;" \ + ".previous;" + +#define INLINE_CLONE_SYSCALL(arg1,arg2,arg3,arg4,arg5) \ +({ \ + register long __A4 __asm__ ("A4") = (long)(arg1); \ + register long __B4 __asm__ ("B4") = (long)(arg2); \ + register long __A6 __asm__ ("A6") = (long)(arg3); \ + register long __B6 __asm__ ("B6") = (long)(arg4); \ + register long __A8 __asm__ ("A8") = (long)(arg5); \ + register long __g1 __asm__ ("g1") = __NR_clone; \ + __asm __volatile (__CLONE_SYSCALL_STRING : \ + "=r" (__g1), "=r" (__A4), "=r" (__B4) : \ + "0" (__g1), "1" (__A4), "2" (__B4), \ + "r" (__A6), "r" (__B6), "r" (__A8) : \ + __SYSCALL_CLOBBERS); \ + __A4; \ +}) +#endif + +#define LOAD_ARGS_0() +#define ASM_ARGS_0 +#define LOAD_ARGS_1(A4) \ + __A4 = (int)A4; \ + LOAD_ARGS_0() +#define ASM_ARGS_1 ASM_ARGS_0, "a" (__A4) +#define LOAD_ARGS_2(A4, B4) \ + register int __B4 __asm__ ("B4") = (int) (B4); \ + LOAD_ARGS_1 (A4) +#define ASM_ARGS_2 ASM_ARGS_1, "b" (__B4) +#define LOAD_ARGS_3(A4, B4, A6) \ + register int __A6 __asm__ ("A6") = (int) (A6); \ + LOAD_ARGS_2 (A4, B4) +#define ASM_ARGS_3 ASM_ARGS_2, "a" (__A6) +#define LOAD_ARGS_4(A4, B4, A6, B6) \ + register int __B6 __asm__ ("B6") = (int) (B6); \ + LOAD_ARGS_3 (A4, B4, A6) +#define ASM_ARGS_4 ASM_ARGS_3, "b" (__B6) +#define LOAD_ARGS_5(A4, B4, A6, B6, A8) \ + register int __A8 __asm__ ("A8") = (int) (A8); \ + LOAD_ARGS_4 (A4, B4, A6, B6) +#define ASM_ARGS_5 ASM_ARGS_4, "a" (__A8) +#define LOAD_ARGS_6(A4, B4, A6, B6, A8, B8) \ + register int __B8 __asm__ ("B8") = (int) (B8); \ + LOAD_ARGS_5 (A4, B4, A6, B6, A8) +#define ASM_ARGS_6 ASM_ARGS_5, "b" (__B8) + +#ifndef _syscall0 + +#define C_DECL_ARGS_0() void +#define C_DECL_ARGS_1(t, v) t v +#define C_DECL_ARGS_2(t, v, args...) t v, C_DECL_ARGS_1(args) +#define C_DECL_ARGS_3(t, v, args...) t v, C_DECL_ARGS_2(args) +#define C_DECL_ARGS_4(t, v, args...) t v, C_DECL_ARGS_3(args) +#define C_DECL_ARGS_5(t, v, args...) t v, C_DECL_ARGS_4(args) +#define C_DECL_ARGS_6(t, v, args...) t v, C_DECL_ARGS_5(args) + +#define C_ARGS_0() +#define C_ARGS_1(t, v) v +#define C_ARGS_2(t, v, args...) v, C_ARGS_1(args) +#define C_ARGS_3(t, v, args...) v, C_ARGS_2(args) +#define C_ARGS_4(t, v, args...) v, C_ARGS_3(args) +#define C_ARGS_5(t, v, args...) v, C_ARGS_4(args) +#define C_ARGS_6(t, v, args...) v, C_ARGS_5(args) + +#define SYSCALL_FUNC(nargs, type, name, args...) \ +type name(C_DECL_ARGS_##nargs(args)) { \ + return (type)INLINE_SYSCALL(name, nargs, C_ARGS_##nargs(args)); \ +} + +#define SYSCALL_NOERR_FUNC(nargs, type, name, args...) \ +type name(C_DECL_ARGS_##nargs(args)) { \ + return (type)INLINE_SYSCALL_NOERR(name, nargs, C_ARGS_##nargs(args)); \ +} + +#define _syscall0(args...) SYSCALL_FUNC(0, args) +#define _syscall1(args...) SYSCALL_FUNC(1, args) +#define _syscall_noerr1(args...) SYSCALL_NOERR_FUNC(1, args) +#define _syscall2(args...) SYSCALL_FUNC(2, args) +#define _syscall3(args...) SYSCALL_FUNC(3, args) +#define _syscall4(args...) SYSCALL_FUNC(4, args) +#define _syscall5(args...) SYSCALL_FUNC(5, args) +#define _syscall6(args...) SYSCALL_FUNC(6, args) + +#endif /* _syscall0 */ + +#endif /* __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ + diff --git a/libc/sysdeps/linux/c6x/bits/uClibc_arch_features.h b/libc/sysdeps/linux/c6x/bits/uClibc_arch_features.h new file mode 100644 index 000000000..59e7de987 --- /dev/null +++ b/libc/sysdeps/linux/c6x/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 */ +#define __UCLIBC_ASM_LINE_SEP__ @ + +#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */ diff --git a/libc/sysdeps/linux/c6x/bits/wordsize.h b/libc/sysdeps/linux/c6x/bits/wordsize.h new file mode 100644 index 000000000..ba643b60a --- /dev/null +++ b/libc/sysdeps/linux/c6x/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/c6x/brk.c b/libc/sysdeps/linux/c6x/brk.c new file mode 100644 index 000000000..7eb486308 --- /dev/null +++ b/libc/sysdeps/linux/c6x/brk.c @@ -0,0 +1,54 @@ +/* + * Port of uClibc for TMS320C6000 DSP architecture + * Copyright (C) 2004 Texas Instruments Incorporated + * Author of TMS320C6000 port: Aurelien Jacquiot + * + * 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 + * + */ + +#include <unistd.h> +#include <sys/syscall.h> +#include <errno.h> + +libc_hidden_proto(brk) + +/* This must be initialized data because commons can't have aliases. */ +void * __curbrk attribute_hidden = 0; + +int brk (void *addr) +{ + void *newbrk; + + __asm__ __volatile__ ( \ + "mv .d1 %2, A4\n\t" \ + "mvk .s2 %1, B0\n\t" \ + "swe\n\t" \ + "nop\n\t" \ + "mv .d2 B0, %0" \ + : "=b" (newbrk) \ + : "i" (__NR_brk), \ + "a" (addr) \ + : "memory", "cc", "B0", "A4"); \ + + __curbrk = newbrk; + + if (newbrk < addr) { + __set_errno (ENOMEM); + return -1; + } + return 0; +} +libc_hidden_def(brk) diff --git a/libc/sysdeps/linux/c6x/bsd-_setjmp.s b/libc/sysdeps/linux/c6x/bsd-_setjmp.s new file mode 100644 index 000000000..566318a2a --- /dev/null +++ b/libc/sysdeps/linux/c6x/bsd-_setjmp.s @@ -0,0 +1,48 @@ + ; + ; Port of uClibc for TMS320C6000 DSP architecture + ; Copyright (C) 2004 Texas Instruments Incorporated + ; Author of TMS320C6000 port: Aurelien Jacquiot + ; + ; 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 + ; + + .global _setjmp + +_setjmp: + MV .D2X A4,B4 ; jmp_buf address +|| STW .D1T2 B3,*+A4(48) ; return address + + STW .D1T1 A10,*+A4(0) +|| STW .D2T2 B10,*+B4(4) +|| ZERO .L1 A6 + + STW .D1T1 A6,*+A4(52) ; no signal mask set +|| B .S2 B3 ; returns in 5 cycles + + STW .D1T1 A11,*+A4(8) +|| STW .D2T2 B11,*+B4(12) + STW .D1T1 A12,*+A4(16) +|| STW .D2T2 B12,*+B4(20) + STW .D1T1 A13,*+A4(24) +|| STW .D2T2 B13,*+B4(28) + STW .D1T1 A14,*+A4(32) +|| STW .D2T2 B14,*+B4(36) + STW .D1T1 A15,*+A4(40) +|| STW .D2T2 B15,*+B4(44) +|| ZERO .L1 A4 ; return values + + + + diff --git a/libc/sysdeps/linux/c6x/bsd-setjmp.S b/libc/sysdeps/linux/c6x/bsd-setjmp.S new file mode 100644 index 000000000..3ab597d8e --- /dev/null +++ b/libc/sysdeps/linux/c6x/bsd-setjmp.S @@ -0,0 +1,67 @@ + ; + ; Port of uClibc for TMS320C6000 DSP architecture + ; Copyright (C) 2004 Texas Instruments Incorporated + ; Author of TMS320C6000 port: Aurelien Jacquiot + ; + ; 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 + ; + + .global setjmp +setjmp: +#if 0 +.if 1 /* was: .if (CONFIG_UCLIBC_SHARED == 0) */ + + MVKL .S1 ___curr_eh_stack_entry,A6 +|| SUB .D1X A4,B15,A3 + MVKH .S1 ___curr_eh_stack_entry,A6 +|| CMPGT .L1 A3,4,A0 ; A0 set if C++ exceptions case + + LDW .D1T1 *A6,A2 +.else + MVKL .S2 (___curr_eh_stack_entry - $bss)/4,B6 +|| SUB .D1X A4,B15,A3 + MVKH .S2 (___curr_eh_stack_entry - $bss)/4,B6 +|| CMPGT .L1 A3,4,A0 ; A0 set if C++ exceptions case + + LDW .D2T1 *+B14[B6],A2 +.endif + NOP +#else + MVK .S1 0, A0 +#endif + + MVK .L2 1,B4 ; indicate to ___sigjmp_save to save signal mask +|| MV .D2X A4,B6 ; jmp_buf address +|| STW .D1T2 B3,*+A4(48) ; return address + + ADDAW .D1 A2,2,A2 + [A0] CMPEQ .L1 A4,A2,A0 ; A0 set if C++ exceptions case + + STW .D1T1 A10,*+A4(0) +|| STW .D2T2 B10,*+B6(4) +||[!A0] B .S1 __sigjmp_save ; branch to ___sigjmp_save in 5 cycles +||[A0] B .S2 B3 + + STW .D1T1 A11,*+A4(8) +|| STW .D2T2 B11,*+B6(12) + STW .D1T1 A12,*+A4(16) +|| STW .D2T2 B12,*+B6(20) + STW .D1T1 A13,*+A4(24) +|| STW .D2T2 B13,*+B6(28) + STW .D1T1 A14,*+A4(32) +|| STW .D2T2 B14,*+B6(36) + STW .D1T1 A15,*+A4(40) +|| STW .D2T2 B15,*+B6(44) +||[A0] ZERO .L1 A4 ; returns 0 for the C++ case diff --git a/libc/sysdeps/linux/c6x/clone.S b/libc/sysdeps/linux/c6x/clone.S new file mode 100644 index 000000000..8d9da4b49 --- /dev/null +++ b/libc/sysdeps/linux/c6x/clone.S @@ -0,0 +1,97 @@ + ; + ; Port of uClibc for TMS320C6000 DSP architecture + ; Copyright (C) 2004 Texas Instruments Incorporated + ; Author of TMS320C6000 port: Aurelien Jacquiot + ; + ; 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 + ; + + ; int _clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); + +#include <asm/errno.h> +#include <sys/syscall.h> + + .global __clone + .global clone + .global __errno_location + + ;Currently supports only + ;int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg) + ; + ;Requires update for supporting + ; int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg, + ; int *parent_tidptr, struct user_desc *newtls, int *child_pidptr) + +__clone: + ; index 1 points to the forth argument and is to be moved to B6 + LDW .D2T2 *+B15[1],B5 + NOP 4 + OR .D2X B4,A4,B2 ; sanity check arguments, no NULL function or stack pointers +|| MV .S2 B4,B9 +|| MV .D1 A4,A9 ; backup fn and child_stack pointers + + [!B2] B .S2 __syscall_error +||[!B2] MVK .S1 EINVAL,A4 + NOP 4 + + MV .D1 A6,A4 ; get flags as arg0, arg1 is the new stack +|| AND .D2 ~7,B4,B4 + + ; do the system call +|| MVK .S2 120,B0 ; __NR_clone +|| MV .L2 B5,B6 +0: +#ifndef _TMS320C6400_PLUS + MVC .S2 CSR,B2 + CLR .S2 B2,0,0,B1 + MVC .S2 B1,CSR + MVC .S2 IFR,B1 + SET .S2 B1,6,6,B1 + MVC .S2 B1,ISR + MVC .S2 B2,CSR + NOP +#else + SWE +#endif + + MV .D2 B9,B4 ; restore child stack + +|| CMPEQ .L1 0,A4,A2 +|| CMPLT .L2X A4,0,B2 + + [B2] B .S2 __syscall_error ; if syscall < 0, it is an error + NOP 5 + [A2] B .S2X A9 ; branch to function +|| [A2] MV .D1X B6,A4 ; set arg (B6 is preserved by syscall) + [!A2] B .S2 B3 ; otherwise (syscall result > 0) returns directly + [A2] ADDKPC .S2 __return_thread,B3, 4 + +__return_thread: + b .s2 HIDDEN_JUMPTARGET(_exit) + nop 5 + +__syscall_error: + NEG .S1 A4,A4 + STW .D2T1 A4,*B15--[2] + STW .D2T2 B3,*+B15[1] + CALLP .S2 __errno_location,B3 + LDW .D2T2 *+B15[1],B3 + LDW .D2T1 *++B15[2],A5 + NOP 3 + BNOP .S2 B3,3 + STW .D1T1 A5,*A4 + MVK .L1 -1,A4 + +.set clone, __clone diff --git a/libc/sysdeps/linux/c6x/crt1.S b/libc/sysdeps/linux/c6x/crt1.S new file mode 100644 index 000000000..810f39557 --- /dev/null +++ b/libc/sysdeps/linux/c6x/crt1.S @@ -0,0 +1,67 @@ +; +; Port of uClibc for TMS320C6000 DSP architecture +; +; Copyright (C) 2010 Texas Instruments Incorporated +; Mark Salter <msalter@redhat.com> +; +; 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 +; + + .text + + ;; On entry, the dynamic linker + ;; + ;; 0(sp) pad0 + ;; 4(sp) pad1 + ;; 8(sp) argc + ;; 12(sp) argv[0] + ;; ... + ;; (4*(argc+3))(sp) NULL + ;; (4*(argc+4))(sp) envp[0] + ;; ... + ;; NULL + + ;; Register values are unspecified, except: + ;; + ;; A4 --> pointer to rtld fini rountine + ;; B14 --> pointer to application DSBT table + + .global _start +_start: + .global _c_int00 +_c_int00: + ;; Things to do: + ;; + ;; * call __uClibc_main( + ;; int (*main)(int, char **, char **), A4 + ;; int argc, B4 + ;; char **argv, A6 + ;; void (*app_init)(void), B6 + ;; void (*app_fini)(void), A8 + ;; void (*rtld_fini)(void), B8 + ;; void *stack_end) A10 + + MV .D2X A4,B8 ; rtld_fini + + LDW .D2T1 *+B14($GOT(main)), A4 + LDW .D2T2 *+B14($GOT(_init)), B6 + B .S2 __uClibc_main +|| LDW .D2T1 *+B14($GOT(_fini)), A8 + + LDW .D2T2 *+B15(8),B4 ; argc + ADDAW .D1X B15,3,A6 ; **argv + MV .D1X B15,A10 ; stack_end +|| ZERO .L1 A15 ; clear FP + NOP 2 diff --git a/libc/sysdeps/linux/c6x/crti.S b/libc/sysdeps/linux/c6x/crti.S new file mode 100644 index 000000000..e689a04d1 --- /dev/null +++ b/libc/sysdeps/linux/c6x/crti.S @@ -0,0 +1,17 @@ +/* + * This file just supplies function prologues for the .init and .fini + * sections. It is linked in before crtbegin.o. + */ + + .section .init + .globl _init + .type _init,@function +_init: + add .l2 -8, B15, B15 + stw .d2t2 B3,*+B15(4) + .section .fini + .globl _fini + .type _fini,@function +_fini: + add .l2 -8, B15, B15 + stw .d2t2 B3,*+B15(4) diff --git a/libc/sysdeps/linux/c6x/crtn.S b/libc/sysdeps/linux/c6x/crtn.S new file mode 100644 index 000000000..37e799df3 --- /dev/null +++ b/libc/sysdeps/linux/c6x/crtn.S @@ -0,0 +1,19 @@ +/* + * This file supplies function epilogues for the .init and .fini sections. + * It is linked in after all other files. + */ + + .section .init + ldw .d2t2 *+B15(4), B3 + add .d2 B15, 8, B15 + nop 3 + ret .s2 B3 + nop 5 + + .section .fini + ldw .d2t2 *+B15(4), B3 + add .d2 B15, 8, B15 + nop 3 + ret .s2 B3 + nop 5 + diff --git a/libc/sysdeps/linux/c6x/prctl.c b/libc/sysdeps/linux/c6x/prctl.c new file mode 100644 index 000000000..fcf1f9d54 --- /dev/null +++ b/libc/sysdeps/linux/c6x/prctl.c @@ -0,0 +1,43 @@ +/* vi: set sw=4 ts=4: */ +/* + * prctl() for uClibc + * + * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <sys/syscall.h> +#include <stdarg.h> +/* psm: including sys/prctl.h would depend on kernel headers */ + +#ifdef __NR_prctl +extern int prctl (int __option, ...); +int prctl (int __option, ...) +{ + register long no __asm__("B0"); + register long a __asm__("A4"); + register long b __asm__("B4"); + register long c __asm__("A6"); + register long d __asm__("B6"); + register long e __asm__("A8"); + int __res; + va_list ap; + + va_start( ap, __option); + a = __option; + b = va_arg( ap, long); + c = va_arg( ap, long); + d = va_arg( ap, long); + e = va_arg( ap, long); + va_end( ap ); + + no = __NR_prctl; + + __asm__ __volatile__ ("SWE" : "=a" (a) : "a" (a), "b" (b), "a" (c), "b" (d), "a" (e), "b" (no) + : "memory", "cc"); + + __res = a; + __SYSCALL_RETURN (int); +} +#endif diff --git a/libc/sysdeps/linux/c6x/pread_write.c b/libc/sysdeps/linux/c6x/pread_write.c new file mode 100644 index 000000000..f985b4374 --- /dev/null +++ b/libc/sysdeps/linux/c6x/pread_write.c @@ -0,0 +1,103 @@ +/* vi: set sw=4 ts=4: + * + * Copyright (C) 2002 by Erik Andersen <andersen@uclibc.org> + * Based in part on the files + * ./sysdeps/unix/sysv/linux/pwrite.c, + * ./sysdeps/unix/sysv/linux/pread.c, + * sysdeps/posix/pread.c + * sysdeps/posix/pwrite.c + * from GNU libc 2.2.5, but reworked considerably... + * + * 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 + */ + +#define _LARGEFILE64_SOURCE +#include <features.h> +#undef __OPTIMIZE__ +/* We absolutely do _NOT_ want interfaces silently + * * * renamed under us or very bad things will happen... */ +#ifdef __USE_FILE_OFFSET64 +# undef __USE_FILE_OFFSET64 +#endif + + +#include <errno.h> +#include <sys/types.h> +#include <sys/syscall.h> +#include <unistd.h> +#include <stdint.h> + +extern __typeof(pread) __libc_pread; +extern __typeof(pwrite) __libc_pwrite; +#ifdef __UCLIBC_HAS_LFS__ +extern __typeof(pread64) __libc_pread64; +extern __typeof(pwrite64) __libc_pwrite64; +#endif + +#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */ +# ifdef __NR_pread +# error "__NR_pread and __NR_pread64 both defined???" +# endif +# define __NR_pread __NR_pread64 +#endif + +#define __NR___syscall_pread __NR_pread +static inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf, + size_t, count, off_t, offset_hi, off_t, offset_lo); + +ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset) +{ + return(__syscall_pread(fd,buf,count,offset,offset >> 31)); +} +weak_alias (__libc_pread, pread) + +#if defined __UCLIBC_HAS_LFS__ +ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset) +{ + uint32_t low = offset & 0xffffffff; + uint32_t high = offset >> 32; + return(__syscall_pread(fd, buf, count, low, high)); +} +weak_alias (__libc_pread64, pread64) +#endif /* __UCLIBC_HAS_LFS__ */ + + +#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */ +# ifdef __NR_pwrite +# error "__NR_pwrite and __NR_pwrite64 both defined???" +# endif +# define __NR_pwrite __NR_pwrite64 +#endif + +#define __NR___syscall_pwrite __NR_pwrite +static inline _syscall5(ssize_t, __syscall_pwrite, int, fd, const void *, buf, + size_t, count, off_t, offset_hi, off_t, offset_lo); + +ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset) +{ + return(__syscall_pwrite(fd,buf,count,offset,offset >> 31)); +} +weak_alias (__libc_pwrite, pwrite) + +#if defined __UCLIBC_HAS_LFS__ +ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset) +{ + uint32_t low = offset & 0xffffffff; + uint32_t high = offset >> 32; + return(__syscall_pwrite(fd, buf, count, low, high)); +} +weak_alias (__libc_pwrite64, pwrite64) +#endif /* __UCLIBC_HAS_LFS__ */ + diff --git a/libc/sysdeps/linux/c6x/setjmp.s b/libc/sysdeps/linux/c6x/setjmp.s new file mode 100644 index 000000000..28a4f0370 --- /dev/null +++ b/libc/sysdeps/linux/c6x/setjmp.s @@ -0,0 +1,43 @@ + ; + ; Port of uClibc for TMS320C6000 DSP architecture + ; Copyright (C) 2004 Texas Instruments Incorporated + ; Author of TMS320C6000 port: Aurelien Jacquiot + ; + ; 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 + ; + + .global __sigsetjmp +; .ref __sigjmp_save + +__sigsetjmp: + MV .D2X A4,B6 ; jmp_buf address +|| STW .D1T2 B3,*+A4(48) ; return address + + STW .D1T1 A10,*+A4(0) +|| STW .D2T2 B10,*+B6(4) +|| B .S2 __sigjmp_save ; branch to ___sigjmp_save in 5 cycles + + STW .D1T1 A11,*+A4(8) +|| STW .D2T2 B11,*+B6(12) + STW .D1T1 A12,*+A4(16) +|| STW .D2T2 B12,*+B6(20) + STW .D1T1 A13,*+A4(24) +|| STW .D2T2 B13,*+B6(28) + STW .D1T1 A14,*+A4(32) +|| STW .D2T2 B14,*+B6(36) + STW .D1T1 A15,*+A4(40) +|| STW .D2T2 B15,*+B6(44) + + diff --git a/libc/sysdeps/linux/c6x/sigaction.c b/libc/sysdeps/linux/c6x/sigaction.c new file mode 100644 index 000000000..1865998ee --- /dev/null +++ b/libc/sysdeps/linux/c6x/sigaction.c @@ -0,0 +1,115 @@ +/* + Copyright (C) 2010 Texas Instruments Incorporated + Adapted from i386 version by Mark Salter <msalter@redhat.com> + + Copyright (C) 1997, 1998, 1999, 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 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. + + Totally hacked up for uClibc by Erik Andersen <andersen@codepoet.org> + */ + +#include <errno.h> +#include <signal.h> +#include <string.h> +#include <sys/syscall.h> +#include <bits/kernel_sigaction.h> + +#define SA_RESTORER 0x04000000 + +extern __typeof(sigaction) __libc_sigaction; + +extern void restore_rt(void) __asm__ ("__restore_rt") attribute_hidden; +extern void restore(void) __asm__ ("__restore") attribute_hidden; + +/* If ACT is not NULL, change the action for SIG to *ACT. + If OACT is not NULL, put the old action for SIG in *OACT. */ +int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact) +{ + int result; + struct kernel_sigaction kact, koact; + +#ifdef SIGCANCEL + if (sig == SIGCANCEL) { + __set_errno (EINVAL); + return -1; + } +#endif + + if (act) { + kact.k_sa_handler = act->sa_handler; + memcpy (&kact.sa_mask, &act->sa_mask, sizeof (kact.sa_mask)); + kact.sa_flags = act->sa_flags; + + kact.sa_flags = act->sa_flags | SA_RESTORER; + kact.sa_restorer = ((act->sa_flags & SA_SIGINFO) + ? &restore_rt : &restore); + } + + /* XXX The size argument hopefully will have to be changed to the + real size of the user-level sigset_t. */ + result = __syscall_rt_sigaction(sig, act ? __ptrvalue (&kact) : NULL, + oact ? __ptrvalue (&koact) : NULL, _NSIG / 8); + + if (oact && result >= 0) { + oact->sa_handler = koact.k_sa_handler; + memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (oact->sa_mask)); + oact->sa_flags = koact.sa_flags; + oact->sa_restorer = koact.sa_restorer; + } + return result; +} + +#ifndef LIBC_SIGACTION +weak_alias(__libc_sigaction,sigaction) +libc_hidden_weak(sigaction) +#endif + +/* NOTE: Please think twice before making any changes to the bits of + code below. GDB needs some intimate knowledge about it to + recognize them as signal trampolines, and make backtraces through + signal handlers work right. Important are both the names + (__restore and __restore_rt) and the exact instruction sequence. + If you ever feel the need to make any changes, please notify the + appropriate GDB maintainer. */ + +#define RESTORE(name, syscall) RESTORE2 (name, syscall) +#define RESTORE2(name, syscall) \ +__asm__ \ + ( \ + " .text\n" \ + " .global " #name "\n" \ + "__" #name ":\n" \ + " MVK " #syscall ",B0\n" \ + " SWE\n" \ + " NOP\n" \ + " NOP\n" \ + " NOP\n" \ + " NOP\n" \ + " NOP\n" \ + " NOP\n" \ + ); + +#ifdef __NR_rt_sigaction +/* The return code for realtime-signals. */ +RESTORE (restore_rt, __NR_rt_sigreturn) +#endif + +#ifdef __NR_sigreturn +/* For the boring old signals. */ +RESTORE (restore, __NR_sigreturn) +#endif diff --git a/libc/sysdeps/linux/c6x/sys/procfs.h b/libc/sysdeps/linux/c6x/sys/procfs.h new file mode 100644 index 000000000..41c2d0866 --- /dev/null +++ b/libc/sysdeps/linux/c6x/sys/procfs.h @@ -0,0 +1,122 @@ +/* Copyright (C) 1996, 1997, 1999, 2000, 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_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> +#include <sys/user.h> + +__BEGIN_DECLS + +/* Type for a general-purpose register. */ +typedef unsigned long elf_greg_t; + +/* And the whole bunch of them. We could have used `struct + user_regs_struct' directly in the typedef, but tradition says that + the register set is an array, which does have some peculiar + semantics, so leave it that way. */ +#define ELF_NGREG 20 +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* Signal info. */ +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. */ + +struct elf_prstatus + { + struct elf_siginfo pr_info; /* Info associated with signal. */ + short int pr_cursig; /* Current signal. */ + unsigned long int pr_sigpend; /* Set of pending signals. */ + unsigned long int pr_sighold; /* Set of held signals. */ + __pid_t pr_pid; + __pid_t pr_ppid; + __pid_t pr_pgrp; + __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 copro 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 int pr_flag; /* Flags. */ + unsigned short int pr_uid; + unsigned short int pr_gid; + int 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_gregset_t prfpregset_t; + +/* We don't have any differences between processes and threads, + therefore have only one PID type. */ +typedef __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; + +__END_DECLS + +#endif /* sys/procfs.h */ diff --git a/libc/sysdeps/linux/c6x/sys/reg.h b/libc/sysdeps/linux/c6x/sys/reg.h new file mode 100644 index 000000000..46857ba71 --- /dev/null +++ b/libc/sysdeps/linux/c6x/sys/reg.h @@ -0,0 +1,26 @@ +/* + * Port of uClibc for TMS320C6000 DSP architecture + * Copyright (C) 2004 Texas Instruments Incorporated + * Author of TMS320C6000 port: Aurelien Jacquiot + * + * 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 + * + */ +#ifndef _SYS_REG_H +#define _SYS_REG_H 1 + +#include <asm/ptrace.h> + +#endif /* _SYS_REG_H */ diff --git a/libc/sysdeps/linux/c6x/sys/ucontext.h b/libc/sysdeps/linux/c6x/sys/ucontext.h new file mode 100644 index 000000000..9a3922a2e --- /dev/null +++ b/libc/sysdeps/linux/c6x/sys/ucontext.h @@ -0,0 +1,39 @@ +/* Copyright (C) 1997, 1999, 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_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> +#include <bits/sigcontext.h> + +/* A machine context is exactly a sigcontext. */ +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/c6x/sys/user.h b/libc/sysdeps/linux/c6x/sys/user.h new file mode 100644 index 000000000..8c0a99dd8 --- /dev/null +++ b/libc/sysdeps/linux/c6x/sys/user.h @@ -0,0 +1,28 @@ +/* Copyright (C) 2010 Texas Instruments Incorporated + 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 + +/* 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. */ + +/* Left blank as a placeholder for now */ + +#endif /* sys/user.h */ diff --git a/libc/sysdeps/linux/c6x/syscall.c b/libc/sysdeps/linux/c6x/syscall.c new file mode 100644 index 000000000..ea947b28e --- /dev/null +++ b/libc/sysdeps/linux/c6x/syscall.c @@ -0,0 +1,49 @@ +/* + * syscall.c + * + * Port on Texas Instruments TMS320C6x architecture + * + * Copyright (C) 2006, 2010 Texas Instruments Incorporated + * Author: Thomas Charleux (thomas.charleux@jaluna.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <features.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/syscall.h> +#include <unistd.h> +#include <stdarg.h> + +long int syscall (long int __sysno, ...) +{ + register long no __asm__("B0"); + register long a __asm__("A4"); + register long b __asm__("B4"); + register long c __asm__("A6"); + register long d __asm__("B6"); + register long e __asm__("A8"); + register long f __asm__("B8"); + long __res; + va_list ap; + + va_start( ap, __sysno); + a = va_arg( ap, long); + b = va_arg( ap, long); + c = va_arg( ap, long); + d = va_arg( ap, long); + e = va_arg( ap, long); + f = va_arg( ap, long); + va_end( ap ); + + no = __sysno; + + __asm__ __volatile__ ("SWE" : "=a" (a) : "a" (a), "b" (b), "a" (c), "b" (d), "a" (e), "b" (f), "b" (no) + : "memory", "cc"); + + __res = a; + __SYSCALL_RETURN (long); +} diff --git a/libc/sysdeps/linux/c6x/vfork.c b/libc/sysdeps/linux/c6x/vfork.c new file mode 100644 index 000000000..f19dcd464 --- /dev/null +++ b/libc/sysdeps/linux/c6x/vfork.c @@ -0,0 +1,26 @@ +/* + * Port of uClibc for TMS320C6000 DSP architecture + * Copyright (C) 2005 Texas Instruments Incorporated + * Author of TMS320C6000 port: Aurelien Jacquiot + * + * 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 + * + */ +#include <features.h> +__asm__(" .text\n" + "vfork: \n" + " MVKL .S1 ___libc_vfork,A0\n" + " MVKH .S1 ___libc_vfork,A0\n" + " BNOP .S2X A0,5\n"); diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in index 302fa6450..fd55333fc 100644 --- a/libc/sysdeps/linux/common/Makefile.in +++ b/libc/sysdeps/linux/common/Makefile.in @@ -50,6 +50,7 @@ CSRC-$(UCLIBC_HAS_EPOLL) += epoll.c CSRC-$(UCLIBC_HAS_XATTR) += xattr.c CSRC-$(UCLIBC_HAS_PROFILING) += noophooks.c #pcprofile.c CSRC-$(UCLIBC_SV4_DEPRECATED) += ustat.c +CSRC- += $(if $(findstring =c6x=,=$(TARGET_ARCH)=),vfork.c) CSRC- += $(if $(findstring =sh=,=$(TARGET_ARCH)=),longjmp.c vfork.c) CSRC- += $(if $(findstring =sparc=,=$(TARGET_ARCH)=),vfork.c) CSRC- += $(if $(findstring =i386=,=$(TARGET_ARCH)=),vfork.c) |