diff options
| author | Carmelo Amoroso <carmelo.amoroso@st.com> | 2007-11-16 14:26:46 +0000 |
|---|---|---|
| committer | Carmelo Amoroso <carmelo.amoroso@st.com> | 2007-11-16 14:26:46 +0000 |
| commit | e130b681c43ee2215512ffcf6cadcbc4487e96e6 (patch) | |
| tree | 107831cfb61595a907dff264d1bdbf02e18c53f5 /libc/sysdeps | |
| parent | c08b07bc9bff10988100653d280e8afe428249f7 (diff) | |
Added AVR32 support to uClibc. Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Diffstat (limited to 'libc/sysdeps')
32 files changed, 1684 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/avr32/Makefile b/libc/sysdeps/linux/avr32/Makefile new file mode 100644 index 000000000..338abc086 --- /dev/null +++ b/libc/sysdeps/linux/avr32/Makefile @@ -0,0 +1,25 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org> +# +# This program is free software; you can redistribute it and/or modify it under +# the terms of the GNU Library General Public License as published by the Free +# Software Foundation; either version 2 of the License, or (at your option) any +# later version. +# +# This program is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more +# details. +# +# You should have received a copy of the GNU Library General Public License +# along with this program; if not, write to the Free Software Foundation, Inc., +# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +top_srcdir=../../../../ +top_builddir=../../../../ +all: objs + +include $(top_builddir)Rules.mak +include Makefile.arch +include $(top_srcdir)Makerules diff --git a/libc/sysdeps/linux/avr32/Makefile.arch b/libc/sysdeps/linux/avr32/Makefile.arch new file mode 100644 index 000000000..c71c3ce56 --- /dev/null +++ b/libc/sysdeps/linux/avr32/Makefile.arch @@ -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. +# + +CSRC := brk.c clone.c mmap.c sigaction.c + +SSRC := __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \ + sigrestorer.S syscall.S vfork.S + +include $(top_srcdir)/libc/sysdeps/linux/Makefile.commonarch diff --git a/libc/sysdeps/linux/avr32/__longjmp.S b/libc/sysdeps/linux/avr32/__longjmp.S new file mode 100644 index 000000000..245611a46 --- /dev/null +++ b/libc/sysdeps/linux/avr32/__longjmp.S @@ -0,0 +1,21 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + + .global __longjmp + .type __longjmp,"function" + .align 1 +__longjmp: + ldm r12++, r0-r8,sp,lr + mustr r8 /* restore status register (lower half) */ + cp r11, 0 /* can't return zero */ + frs + moveq r11, 1 + retal r11 + .size __longjmp, . - __longjmp + +libc_hidden_def(__longjmp) diff --git a/libc/sysdeps/linux/avr32/bits/atomic.h b/libc/sysdeps/linux/avr32/bits/atomic.h new file mode 100644 index 000000000..4f870c023 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/atomic.h @@ -0,0 +1,120 @@ +/* + * Copyright (C) 2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#ifndef _AVR32_BITS_ATOMIC_H +#define _AVR32_BITS_ATOMIC_H 1 + +#include <inttypes.h> + +typedef int32_t atomic32_t; +typedef uint32_t uatomic32_t; +typedef int_fast32_t atomic_fast32_t; +typedef uint_fast32_t uatomic_fast32_t; + +typedef intptr_t atomicptr_t; +typedef uintptr_t uatomicptr_t; +typedef intmax_t atomic_max_t; +typedef uintmax_t uatomic_max_t; + +#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \ + (abort(), 0) + +#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \ + (abort(), 0) + +#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \ + ({ \ + __typeof__(*(mem)) __prev; \ + __asm__ __volatile__( \ + "/* __arch_compare_and_exchange_val_32_acq */\n" \ + "1: ssrf 5\n" \ + " ld.w %[result], %[m]\n" \ + " cp.w %[result], %[old]\n" \ + " brne 2f\n" \ + " stcond %[m], %[new]\n" \ + " brne 1b\n" \ + "2:" \ + : [result] "=&r"(__result), [m] "=m"(*(mem)) \ + : "m"(*(mem)), [old] "ir"(oldval), \ + [new] "r"(newval) \ + : "memory", "cc"); \ + __prev; \ + }) + +#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ + (abort(), 0) + +#define __arch_exchange_32_acq(mem, newval) \ + ({ \ + __typeof__(*(mem)) __oldval; \ + __asm__ __volatile__( \ + "/*__arch_exchange_32_acq */\n" \ + " xchg %[old], %[m], %[new]" \ + : [old] "=&r"(__oldval) \ + : [m] "r"(mem), [new] "r"(newval) \ + : "memory"); \ + __oldval; \ + }) + +#define __arch_atomic_exchange_and_add_32(mem, value) \ + ({ \ + __typeof__(*(mem)) __oldval, __tmp; \ + __asm__ __volatile__( \ + "/* __arch_atomic_exchange_and_add_32 */\n" \ + "1: ssrf 5\n" \ + " ld.w %[old], %[m]\n" \ + " add %[tmp], %[old], %[val]\n" \ + " stcond %[m], %[tmp]\n" \ + " brne 1b" \ + : [old] "=&r"(__oldval), [tmp] "=&r"(__tmp), \ + [m] "=m"(*(mem)) \ + : "m"(*(mem)), [val] "r"(value) \ + : "memory", "cc"); \ + __oldval; \ + }) + +#define __arch_atomic_decrement_if_positive_32(mem) \ + ({ \ + __typeof__(*(mem)) __oldval, __tmp; \ + __asm__ __volatile__( \ + "/* __arch_atomic_decrement_if_positive_32 */\n" \ + "1: ssrf 5\n" \ + " ld.w %[old], %[m]\n" \ + " sub %[tmp], %[old], 1\n" \ + " brlt 2f\n" \ + " stcond %[m], %[tmp]\n" \ + " brne 1b" \ + "2:" \ + : [old] "=&r"(__oldval), [tmp] "=&r"(__tmp), \ + [m] "=m"(*(mem)) \ + : "m"(*(mem)) \ + : "memory", "cc"); \ + __oldval; \ + }) + +#define atomic_exchange_acq(mem, newval) \ + ({ \ + if (sizeof(*(mem)) != 4) \ + abort(); \ + __arch_exchange_32_acq(mem, newval); \ + }) + +#define atomic_exchange_and_add(mem, newval) \ + ({ \ + if (sizeof(*(mem)) != 4) \ + abort(); \ + __arch_atomic_exchange_and_add_32(mem, newval); \ + }) + +#define atomic_decrement_if_positive(mem) \ + ({ \ + if (sizeof(*(mem)) != 4) \ + abort(); \ + __arch_atomic_decrement_if_positive_32(mem); \ + }) + +#endif /* _AVR32_BITS_ATOMIC_H */ diff --git a/libc/sysdeps/linux/avr32/bits/byteswap.h b/libc/sysdeps/linux/avr32/bits/byteswap.h new file mode 100644 index 000000000..59e96320f --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/byteswap.h @@ -0,0 +1,70 @@ +/* + * Copyright (C) 2005 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#if !defined _BYTESWAP_H && !defined _NETINET_IN_H +# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." +#endif + +#ifndef _BITS_BYTESWAP_H +#define _BITS_BYTESWAP_H 1 + +/* Swap bytes in 16 bit value. */ +#if defined __GNUC__ +# define __bswap_16(x) (__extension__ __builtin_bswap_16(x)) +#else +/* This is better than nothing. */ +static __inline unsigned short int +__bswap_16 (unsigned short int __bsx) +{ + return ((((__bsx) >> 8) & 0xff) | (((__bsx) & 0xff) << 8)); +} +#endif + +/* Swap bytes in 32 bit value. */ +#if defined __GNUC__ +# define __bswap_32(x) (__extension__ __builtin_bswap_32(x)) +#else +static __inline unsigned int +__bswap_32 (unsigned int __bsx) +{ + return ((((__bsx) & 0xff000000) >> 24) | (((__bsx) & 0x00ff0000) >> 8) | + (((__bsx) & 0x0000ff00) << 8) | (((__bsx) & 0x000000ff) << 24)); +} +#endif + +#if defined __GNUC__ +/* Swap bytes in 64 bit value. */ +# define __bswap_constant_64(x) \ + ((((x) & 0xff00000000000000ull) >> 56) \ + | (((x) & 0x00ff000000000000ull) >> 40) \ + | (((x) & 0x0000ff0000000000ull) >> 24) \ + | (((x) & 0x000000ff00000000ull) >> 8) \ + | (((x) & 0x00000000ff000000ull) << 8) \ + | (((x) & 0x0000000000ff0000ull) << 24) \ + | (((x) & 0x000000000000ff00ull) << 40) \ + | (((x) & 0x00000000000000ffull) << 56)) + +# define __bswap_64(x) \ + (__extension__ \ + ({ \ + union { \ + __extension__ unsigned long long int __ll; \ + unsigned int __l[2]; \ + } __w, __r; \ + if (__builtin_constant_p(x)) \ + __r.__ll = __bswap_constant_64(x); \ + else { \ + __w.__ll = (x); \ + __r.__l[0] = __bswap_32(__w.__l[1]); \ + __r.__l[1] = __bswap_32(__w.__l[0]); \ + } \ + __r.__ll; \ + })) +#endif + +#endif /* _BITS_BYTESWAP_H */ diff --git a/libc/sysdeps/linux/avr32/bits/endian.h b/libc/sysdeps/linux/avr32/bits/endian.h new file mode 100644 index 000000000..7bb63585d --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/endian.h @@ -0,0 +1,7 @@ +/* AVR32 is big-endian */ + +#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/avr32/bits/fcntl.h b/libc/sysdeps/linux/avr32/bits/fcntl.h new file mode 100644 index 000000000..b45dd2c4c --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/fcntl.h @@ -0,0 +1,165 @@ +#ifndef _FCNTL_H +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." +#endif + +#include <sys/types.h> + +/* + * open/fcntl - O_SYNC is only implemented on blocks devices and on files + * located on an ext2 file system + */ +#define O_ACCMODE 00000003 +#define O_RDONLY 00000000 +#define O_WRONLY 00000001 +#define O_RDWR 00000002 +#define O_CREAT 00000100 /* not fcntl */ +#define O_EXCL 00000200 /* not fcntl */ +#define O_NOCTTY 00000400 /* not fcntl */ +#define O_TRUNC 00001000 /* not fcntl */ +#define O_APPEND 00002000 +#define O_NONBLOCK 00004000 +#define O_NDELAY O_NONBLOCK +#define O_SYNC 00010000 +#define O_ASYNC 00020000 + +#ifdef __USE_GNU +# define O_DIRECT 00040000 /* must be a directory */ +# define O_DIRECTORY 00200000 /* direct disk access */ +# define O_NOFOLLOW 00400000 /* don't follow links */ +# define O_NOATIME 01000000 /* don't set atime */ +#endif + +#ifdef __USE_LARGEFILE64 +# define O_LARGEFILE 00100000 +#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 + +#define F_DUPFD 0 /* dup */ +#define F_GETFD 1 /* get close_on_exec */ +#define F_SETFD 2 /* set/clear close_on_exec */ +#define F_GETFL 3 /* get file->f_flags */ +#define F_SETFL 4 /* set file->f_flags */ + +#ifndef __USE_FILE_OFFSET64 +# define F_GETLK 5 +# define F_SETLK 6 +# define F_SETLKW 7 +#else +# define F_GETLK F_GETLK64 +# define F_SETLK F_SETLK64 +# define F_SETLKW F_SETLKW64 +#endif +#define F_GETLK64 12 /* using 'struct flock64' */ +#define F_SETLK64 13 +#define F_SETLKW64 14 + +#if defined __USE_BSD || defined __USE_XOPEN2K +# define F_SETOWN 8 /* for sockets. */ +# define F_GETOWN 9 /* for sockets. */ +#endif + +#ifdef __USE_GNU +# define F_SETSIG 10 /* for sockets. */ +# define F_GETSIG 11 /* for sockets. */ +#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 lockf() */ +#define F_RDLCK 0 +#define F_WRLCK 1 +#define F_UNLCK 2 + +/* for old implementation of bsd flock () */ +#define F_EXLCK 4 /* or 3 */ +#define F_SHLCK 8 /* or 4 */ + +/* for leases */ +#define F_INPROGRESS 16 + +#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 ops */ +#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 l_type; + short l_whence; +#ifndef __USE_FILE_OFFSET64 + __off_t l_start; + __off_t l_len; +#else + __off64_t l_start; + __off64_t l_len; +#endif + __pid_t l_pid; +}; + +#ifdef __USE_LARGEFILE64 +struct flock64 { + short l_type; + short l_whence; + __off64_t l_start; + __off64_t l_len; + __pid_t l_pid; +}; +#endif + +/* Define some more compatibility macros to be backward compatible with + * BSD systems which did not managed to hide these kernel macros. */ +#ifdef __USE_BSD +# define FAPPEND O_APPEND +# define FFSYNC O_FSYNC +# define FASYNC O_ASYNC +# define FNONBLOCK O_NONBLOCK +# define FNDELAY O_NDELAY +#endif /* Use BSD. */ + +/* Advise to `posix_fadvise'. */ +#ifdef __USE_XOPEN2K +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ +# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ +#endif diff --git a/libc/sysdeps/linux/avr32/bits/kernel_stat.h b/libc/sysdeps/linux/avr32/bits/kernel_stat.h new file mode 100644 index 000000000..e5cc813c4 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/kernel_stat.h @@ -0,0 +1,67 @@ +#ifndef _BITS_STAT_STRUCT_H +#define _BITS_STAT_STRUCT_H + +#ifndef _LIBC +#error bits/kernel_stat.h is for internal uClibc use only! +#endif + +/* + * This file provides struct stat, taken from kernel 2.6.4. Verified + * to match kernel 2.6.22. + */ + +struct kernel_stat { + unsigned long st_dev; + unsigned long st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned long st_rdev; + unsigned long st_size; + unsigned long st_blksize; + unsigned long st_blocks; + unsigned long st_atime; + unsigned long st_atime_nsec; + unsigned long st_mtime; + unsigned long st_mtime_nsec; + unsigned long st_ctime; + unsigned long st_ctime_nsec; + unsigned long __unused4; + unsigned long __unused5; +}; + +#define STAT_HAVE_NSEC 1 + +struct kernel_stat64 { + unsigned long long st_dev; + + unsigned long long st_ino; + unsigned int st_mode; + unsigned int st_nlink; + + unsigned long st_uid; + unsigned long st_gid; + + unsigned long long st_rdev; + + long long st_size; + unsigned long __pad1; + unsigned long st_blksize; + + unsigned long long st_blocks; + + unsigned long st_atime; + unsigned long st_atime_nsec; + + unsigned long st_mtime; + unsigned long st_mtime_nsec; + + unsigned long st_ctime; + unsigned long st_ctime_nsec; + + unsigned long __unused1; + unsigned long __unused2; +}; + +#endif /* _BITS_STAT_STRUCT_H */ diff --git a/libc/sysdeps/linux/avr32/bits/kernel_types.h b/libc/sysdeps/linux/avr32/bits/kernel_types.h new file mode 100644 index 000000000..159a440b2 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/kernel_types.h @@ -0,0 +1,55 @@ +/* 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_AVR32_POSIX_TYPES_H +#define __ASM_AVR32_POSIX_TYPES_H + +/* + * This file is generally used by user-level software, so you need to + * be a little careful about namespace pollution etc. Also, we cannot + * assume GCC is being used. + */ + +typedef unsigned long __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 int __kernel_uid_t; +typedef unsigned int __kernel_gid_t; +typedef unsigned long __kernel_size_t; +typedef long __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; + +#ifdef __GNUC__ +typedef long long __kernel_loff_t; +#endif + +typedef struct { +#if defined(__USE_ALL) + int val[2]; +#else + int __val[2]; +#endif +} __kernel_fsid_t; + +#endif /* __ASM_AVR32_POSIX_TYPES_H */ diff --git a/libc/sysdeps/linux/avr32/bits/mman.h b/libc/sysdeps/linux/avr32/bits/mman.h new file mode 100644 index 000000000..be5837a7c --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/mman.h @@ -0,0 +1,103 @@ +/* Definitions for POSIX memory map interface. Linux/AVR32 version. + Copyright (C) 1997, 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 _SYS_MMAN_H +# error "Never include this file directly. Use <sys/mman.h> instead" +#endif + +/* The following definitions basically come from the kernel headers. + But the kernel header is not namespace clean. */ + + +/* Protections are chosen from these bits, OR'd together. The + implementation does not necessarily support PROT_EXEC or PROT_WRITE + without PROT_READ. The only guarantees are that no writing will be + allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */ + +#define PROT_READ 0x1 /* Page can be read. */ +#define PROT_WRITE 0x2 /* Page can be written. */ +#define PROT_EXEC 0x4 /* Page can be executed. */ +#define PROT_NONE 0x0 /* Page can not be accessed. */ +#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of + growsdown vma (mprotect only). */ +#define PROT_GROWSUP 0x02000000 /* Extend change to start of + growsup vma (mprotect only). */ + +/* Sharing types (must choose one and only one of these). */ +#define MAP_SHARED 0x01 /* Share changes. */ +#define MAP_PRIVATE 0x02 /* Changes are private. */ +#ifdef __USE_MISC +# define MAP_TYPE 0x0f /* Mask for type of mapping. */ +#endif + +/* Other flags. */ +#define MAP_FIXED 0x10 /* Interpret addr exactly. */ +#ifdef __USE_MISC +# define MAP_FILE 0 +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */ +# define MAP_ANON MAP_ANONYMOUS +#endif + +/* These are Linux-specific. */ +#ifdef __USE_MISC +# define MAP_GROWSDOWN 0x0100 /* Stack-like segment. */ +# define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable. */ +# define MAP_LOCKED 0x2000 /* Lock the mapping. */ +# define MAP_NORESERVE 0x4000 /* Don't check for reservations. */ +# define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ +# define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#endif + +/* Flags to `msync'. */ +#define MS_ASYNC 1 /* Sync memory asynchronously. */ +#define MS_SYNC 4 /* Synchronous memory sync. */ +#define MS_INVALIDATE 2 /* Invalidate the caches. */ + +/* Flags for `mlockall'. */ +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */ +#define MCL_FUTURE 2 /* Lock all additions to address + space. */ + +/* Flags for `mremap'. */ +#ifdef __USE_GNU +# define MREMAP_MAYMOVE 1 +# define MREMAP_FIXED 2 +#endif + +/* Advise to `madvise'. */ +#ifdef __USE_BSD +# define MADV_NORMAL 0 /* No further special treatment. */ +# define MADV_RANDOM 1 /* Expect random page references. */ +# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define MADV_WILLNEED 3 /* Will need these pages. */ +# define MADV_DONTNEED 4 /* Don't need these pages. */ +# define MADV_REMOVE 9 /* Remove these pages and resources. */ +# define MADV_DONTFORK 10 /* Do not inherit across fork. */ +# define MADV_DOFORK 11 /* Do inherit across fork. */ +#endif + +/* The POSIX people had to invent similar names for the same things. */ +#ifdef __USE_XOPEN2K +# define POSIX_MADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_MADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */ +#endif diff --git a/libc/sysdeps/linux/avr32/bits/setjmp.h b/libc/sysdeps/linux/avr32/bits/setjmp.h new file mode 100644 index 000000000..733a473d1 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/setjmp.h @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2004-2005 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#ifndef _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 +/* + * The jump buffer contains r0-r7, sr, sp and lr. Other registers are + * not saved. + */ +typedef int __jmp_buf[11]; +#endif + +#define __JMP_BUF_SP 4 + +/* Test if longjmp to JMPBUF would unwind the frame containing a local + variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *)(address) < (void *)(jmpbuf[__JMP_BUF_SP])) + +#endif /* _BITS_SETJMP_H */ diff --git a/libc/sysdeps/linux/avr32/bits/stackinfo.h b/libc/sysdeps/linux/avr32/bits/stackinfo.h new file mode 100644 index 000000000..3723e2448 --- /dev/null +++ b/libc/sysdeps/linux/avr32/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 AVR32 the stack grows down. */ +#define _STACK_GROWS_DOWN 1 + +#endif /* stackinfo.h */ diff --git a/libc/sysdeps/linux/avr32/bits/syscalls.h b/libc/sysdeps/linux/avr32/bits/syscalls.h new file mode 100644 index 000000000..b58ca0b4b --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/syscalls.h @@ -0,0 +1,143 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + +/* + * This includes the `__NR_<name>' syscall numbers taken from the + * Linux kernel header files. It also defines the traditional + * `SYS_<name>' macros for older programs. + */ +#include <bits/sysnum.h> + +#ifndef __ASSEMBLER__ + +#include <errno.h> + +#define SYS_ify(syscall_name) (__NR_##syscall_name) + +#undef _syscall0 +#define _syscall0(type,name) \ + type name(void) \ + { \ + return (type)(INLINE_SYSCALL(name, 0)); \ + } + +#undef _syscall1 +#define _syscall1(type,name,type1,arg1) \ + type name(type1 arg1) \ + { \ + return (type)(INLINE_SYSCALL(name, 1, arg1)); \ + } + +#undef _syscall2 +#define _syscall2(type,name,type1,arg1,type2,arg2) \ + type name(type1 arg1, type2 arg2) \ + { \ + return (type)(INLINE_SYSCALL(name, 2, arg1, arg2)); \ + } + +#undef _syscall3 +#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ + type name(type1 arg1, type2 arg2, type3 arg3) \ + { \ + return (type)(INLINE_SYSCALL(name, 3, arg1, \ + arg2, arg3)); \ + } + +#undef _syscall4 +#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3, \ + type4,arg4) \ + type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ + { \ + return (type)(INLINE_SYSCALL(name, 4, arg1, arg2, \ + arg3, arg4)); \ + } + +#undef _syscall5 +#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3, \ + type4,arg4,type5,arg5) \ + type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ + type5 arg5) \ + { \ + return (type)(INLINE_SYSCALL(name, 5, arg1, arg2, \ + arg3, arg4, arg5)); \ + } + +#undef _syscall6 +#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3, \ + type4,arg4,type5,arg5,type6,arg6) \ + type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ + type5 arg5, type6 arg6) \ + { \ + return (type)(INLINE_SYSCALL(name, 6, arg1, arg2, arg3, \ + arg4, arg5, arg6)); \ + } + +#undef unlikely +#define unlikely(x) __builtin_expect((x), 0) + +#undef INLINE_SYSCALL +#define INLINE_SYSCALL(name, nr, args...) \ + ({ \ + unsigned _sys_result = INTERNAL_SYSCALL(name, , nr, args); \ + if (unlikely(INTERNAL_SYSCALL_ERROR_P(_sys_result, ))) { \ + __set_errno(INTERNAL_SYSCALL_ERRNO(_sys_result, )); \ + _sys_result = (unsigned int) -1; \ + } \ + (int) _sys_result; \ + }) + +#undef INTERNAL_SYSCALL_DECL +#define INTERNAL_SYSCALL_DECL(err) do { } while(0) + +#undef INTERNAL_SYSCALL +#define INTERNAL_SYSCALL(name, err, nr, args...) \ + ({ \ + register int _a1 asm ("r12"); \ + register int _scno asm("r8") = SYS_ify(name); \ + LOAD_ARGS_##nr (args); \ + asm volatile ("scall /* syscall " #name " */" \ + : "=r" (_a1) \ + : "r"(_scno) ASM_ARGS_##nr \ + : "cc", "memory"); \ + _a1; \ + }) + +#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, errr) (-(val)) + +#define LOAD_ARGS_0() do { } while(0) +#define ASM_ARGS_0 +#define LOAD_ARGS_1(a1) \ + _a1 = (int) (a1); \ + LOAD_ARGS_0() +#define ASM_ARGS_1 ASM_ARGS_0, "r"(_a1) +#define LOAD_ARGS_2(a1, a2) \ + register int _a2 asm("r11") = (int)(a2); \ + LOAD_ARGS_1(a1) +#define ASM_ARGS_2 ASM_ARGS_1, "r"(_a2) +#define LOAD_ARGS_3(a1, a2, a3) \ + register int _a3 asm("r10") = (int)(a3); \ + LOAD_ARGS_2(a1, a2) +#define ASM_ARGS_3 ASM_ARGS_2, "r"(_a3) +#define LOAD_ARGS_4(a1, a2, a3, a4) \ + register int _a4 asm("r9") = (int)(a4); \ + LOAD_ARGS_3(a1, a2, a3) +#define ASM_ARGS_4 ASM_ARGS_3, "r"(_a4) +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + register int _a5 asm("r5") = (int)(a5); \ + LOAD_ARGS_4(a1, a2, a3, a4) +#define ASM_ARGS_5 ASM_ARGS_4, "r"(_a5) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + register int _a6 asm("r3") = (int)(a6); \ + LOAD_ARGS_5(a1, a2, a3, a4, a5) +#define ASM_ARGS_6 ASM_ARGS_5, "r"(_a6) + +#endif /* __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ diff --git a/libc/sysdeps/linux/avr32/bits/uClibc_arch_features.h b/libc/sysdeps/linux/avr32/bits/uClibc_arch_features.h new file mode 100644 index 000000000..e95e8a5d2 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/uClibc_arch_features.h @@ -0,0 +1,45 @@ +/* + * 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 */ +/* trigger illegal instruction exception, same as BUG in Linux */ +#define __UCLIBC_ABORT_INSTRUCTION__ ".short 0x5df0" + +/* 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 prefix all symbols with an _ ? */ +#define __UCLIBC_NO_UNDERSCORES__ + +/* 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 IEEE signed zero floats */ +#define __UCLIBC_HAVE_SIGNED_ZERO__ + +#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */ diff --git a/libc/sysdeps/linux/avr32/bits/wordsize.h b/libc/sysdeps/linux/avr32/bits/wordsize.h new file mode 100644 index 000000000..0880d37e9 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/wordsize.h @@ -0,0 +1 @@ +#define __WORDSIZE 32 diff --git a/libc/sysdeps/linux/avr32/brk.c b/libc/sysdeps/linux/avr32/brk.c new file mode 100644 index 000000000..d824c7cd0 --- /dev/null +++ b/libc/sysdeps/linux/avr32/brk.c @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <errno.h> +#include <unistd.h> +#include <sys/syscall.h> + +libc_hidden_proto(brk) + +void *__curbrk attribute_hidden = 0; + +int brk (void *addr) +{ + void *newbrk; + + newbrk = (void *)INLINE_SYSCALL(brk, 1, addr); + + __curbrk = newbrk; + + if (newbrk < addr) { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} +libc_hidden_def(brk) diff --git a/libc/sysdeps/linux/avr32/bsd-_setjmp.S b/libc/sysdeps/linux/avr32/bsd-_setjmp.S new file mode 100644 index 000000000..e8ac4c6a1 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bsd-_setjmp.S @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + + /* This just does a tail-call to __sigsetjmp(env, 0) */ + .global _setjmp + .type _setjmp,"function" + .align 1 +_setjmp: + mov r11, 0 + bral __GI___sigsetjmp + .size _setjmp, . - _setjmp diff --git a/libc/sysdeps/linux/avr32/bsd-setjmp.S b/libc/sysdeps/linux/avr32/bsd-setjmp.S new file mode 100644 index 000000000..5394446ae --- /dev/null +++ b/libc/sysdeps/linux/avr32/bsd-setjmp.S @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + + /* This just does a tail-call to __sigsetjmp(env, 1) */ + .global setjmp + .type setjmp,"function" + .align 1 +setjmp: + mov r11, 1 + bral __GI___sigsetjmp + .size setjmp, . - setjmp diff --git a/libc/sysdeps/linux/avr32/clone.c b/libc/sysdeps/linux/avr32/clone.c new file mode 100644 index 000000000..c5f5a74a8 --- /dev/null +++ b/libc/sysdeps/linux/avr32/clone.c @@ -0,0 +1,41 @@ +/* + * Copyright (C) 2004 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <errno.h> +#include <sys/syscall.h> +#include <unistd.h> + +/* + * I don't know if we can be absolutely certain that the fn and arg + * parameters are preserved when returning as the child. If the + * compiler stores them in registers (r0-r7), they should be. + */ +int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg) +{ + register int (*_fn)(void *arg) = fn; + register void *_arg = arg; + int err; + + /* Sanity check the arguments */ + err = -EINVAL; + if (!fn) + goto syscall_error; + if (!child_stack) + goto syscall_error; + + err = INLINE_SYSCALL(clone, 2, flags, child_stack); + if (err < 0) + goto syscall_error; + else if (err != 0) + return err; + + _exit(_fn(_arg)); + +syscall_error: + __set_errno (-err); + return -1; +} diff --git a/libc/sysdeps/linux/avr32/crt1.S b/libc/sysdeps/linux/avr32/crt1.S new file mode 100644 index 000000000..0f0a2e87d --- /dev/null +++ b/libc/sysdeps/linux/avr32/crt1.S @@ -0,0 +1,97 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + * + * When we enter _start, the stack looks like this: + * argc argument counter + * argv[0] pointer to program name + * argv[1..argc-1] pointers to program args + * NULL + * env[0..N] pointers to environment variables + * NULL + * + * r12 contains a function pointer to be registered with `atexit'. + * This is how the dynamic linker arranges to have DT_FINI functions + * called for shared libraries that have been loaded before this + * code runs. + * + * We're going to call the following function: + * __uClibc_main(int (*main)(int, char **, char **), int argc, + * char **argv, void (*app_init)(void), void (*app_fini)(void), + * void (*rtld_fini)(void), void *stack_end) + * + * So we need to set up things as follows: + * r12 = address of main + * r11 = argc + * r10 = &argv[0] + * r9 = address of _init + * r8 = address of _fini + * sp[0] = whatever we got passed in r12 + */ + +#include <features.h> + + .text + .global _start + .type _start, @function +_start: + /* Clear the frame pointer and link register since this is the outermost frame. */ + mov r7, 0 + mov lr, 0 + + ld.w r11, sp++ /* argc */ + mov r10, sp /* &argv[0] */ + + st.w --sp, r10 /* stack_end */ + st.w --sp, r12 /* rtld_fini */ + +#ifdef __PIC__ + lddpc r6, .L_GOT +.L_RGOT: + rsub r6, pc + lda.w r9, _init + lda.w r8, _fini + lda.w r12, main + + /* Ok, now run uClibc's main() -- should not return */ + call __uClibc_main + + .align 2 +.L_GOT: + .long .L_RGOT - _GLOBAL_OFFSET_TABLE_ +#else + lddpc r9, __init_addr /* app_init */ + lddpc r8, __fini_addr /* app_fini */ + lddpc r12, __main_addr /* main */ + + /* Ok, now run uClibc's main() -- should not return */ + lddpc pc, ___uClibc_main_addr + + .align 2 +__init_addr: + .long _init +__fini_addr: + .long _fini +__main_addr: + .long main +___uClibc_main_addr: + .long __uClibc_main +#endif + .size _start, . - _start + + /* + * The LSB says we need this. + */ + .section ".note.ABI-tag", "a" + .align 4 + .long 2f - 1f /* namesz */ + .long 4f - 3f /* descsz */ + .long 1 /* type */ +1: .asciz "GNU" /* name */ +2: .align 4 +3: .long 0 /* Linux executable */ + .long 2,6,0 /* Earliest compatible kernel */ +4: .align 4 diff --git a/libc/sysdeps/linux/avr32/crti.S b/libc/sysdeps/linux/avr32/crti.S new file mode 100644 index 000000000..69b387cb8 --- /dev/null +++ b/libc/sysdeps/linux/avr32/crti.S @@ -0,0 +1,26 @@ + + .section .init + .align 2 + .global _init + .type _init, @function +_init: + stm --sp, r6, lr + lddpc r6, 2f +1: rsub r6, pc + rjmp 3f + .align 2 +2: .long 1b - _GLOBAL_OFFSET_TABLE_ +3: + + .section .fini + .align 2 + .global _fini + .type _fini, @function +_fini: + stm --sp, r6, lr + lddpc r6, 2f +1: rsub r6, pc + rjmp 3f + .align 2 +2: .long 1b - _GLOBAL_OFFSET_TABLE_ +3: diff --git a/libc/sysdeps/linux/avr32/crtn.S b/libc/sysdeps/linux/avr32/crtn.S new file mode 100644 index 000000000..02e1a8367 --- /dev/null +++ b/libc/sysdeps/linux/avr32/crtn.S @@ -0,0 +1,14 @@ + + .section .init + .align 2 + .global _init + .type _init, @function + ldm sp++, r6, pc + .size _init, . - _init + + .section .fini + .align 2 + .global _fini + .type _fini, @function + ldm sp++, r6, pc + .size _fini, . - _fini diff --git a/libc/sysdeps/linux/avr32/mmap.c b/libc/sysdeps/linux/avr32/mmap.c new file mode 100644 index 000000000..80310a45f --- /dev/null +++ b/libc/sysdeps/linux/avr32/mmap.c @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#include <errno.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/syscall.h> + +libc_hidden_proto(mmap) + +static _syscall6(__ptr_t, mmap2, __ptr_t, addr, size_t, len, int, prot, + int, flags, int, fd, __off_t, pgoff); + +__ptr_t mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset) +{ + unsigned long page_size = sysconf(_SC_PAGESIZE); + unsigned long pgoff; + + if (offset & (page_size - 1)) { + __set_errno(EINVAL); + return MAP_FAILED; + } + + pgoff = (unsigned long)offset >> (31 - __builtin_clz(page_size)); + + return mmap2(addr, len, prot, flags, fd, pgoff); +} +libc_hidden_def(mmap) diff --git a/libc/sysdeps/linux/avr32/setjmp.S b/libc/sysdeps/linux/avr32/setjmp.S new file mode 100644 index 000000000..77f80d277 --- /dev/null +++ b/libc/sysdeps/linux/avr32/setjmp.S @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + + .text + + .global __sigsetjmp + .type __sigsetjmp,"function" + + .align 1 +__sigsetjmp: + mustr r8 + stm r12, r0,r1,r2,r3,r4,r5,r6,r7,r8,sp,lr + + /* + * Make a tail call to __sigjmp_save; it takes the same args + * and is hidden so we don't need to mess around with the GOT. + */ + rjmp __sigjmp_save + .size __sigsetjmp, . - __sigsetjmp + +libc_hidden_def(__sigsetjmp) diff --git a/libc/sysdeps/linux/avr32/sigaction.c b/libc/sysdeps/linux/avr32/sigaction.c new file mode 100644 index 000000000..6817e1b1e --- /dev/null +++ b/libc/sysdeps/linux/avr32/sigaction.c @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <errno.h> +#include <signal.h> +#include <string.h> +#include <sys/syscall.h> +#include <bits/kernel_sigaction.h> + +#define SA_RESTORER 0x04000000 +extern void __default_rt_sa_restorer(void); + +libc_hidden_proto(memcpy) + +/* + * 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 signum, const struct sigaction *act, + struct sigaction *oldact) +{ + struct kernel_sigaction kact, koact; + int result; + + 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; + if (kact.sa_flags & (SA_RESTORER | SA_ONSTACK)) + kact.sa_restorer = act->sa_restorer; + else + kact.sa_restorer = __default_rt_sa_restorer; + kact.sa_flags |= SA_RESTORER; + } + + result = __syscall_rt_sigaction(signum, act ? __ptrvalue(&kact) : NULL, + oldact ? __ptrvalue(&koact) : NULL, + _NSIG / 8); + + if (oldact && result >= 0) { + oldact->sa_handler = koact.k_sa_handler; + memcpy(&oldact->sa_mask, &koact.sa_mask, + sizeof(oldact->sa_mask)); + oldact->sa_flags = koact.sa_flags; + oldact->sa_restorer = koact.sa_restorer; + } + + return result; +} + +#ifndef LIBC_SIGACTION +libc_hidden_proto(sigaction) +weak_alias(__libc_sigaction, sigaction) +libc_hidden_weak(sigaction) +#endif diff --git a/libc/sysdeps/linux/avr32/sigrestorer.S b/libc/sysdeps/linux/avr32/sigrestorer.S new file mode 100644 index 000000000..03f8bb568 --- /dev/null +++ b/libc/sysdeps/linux/avr32/sigrestorer.S @@ -0,0 +1,15 @@ +/* + * Copyright (C) 2004 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <sys/syscall.h> + + .global __default_rt_sa_restorer + .type __default_rt_sa_restorer,"function" + .align 1 +__default_rt_sa_restorer: + mov r8, __NR_rt_sigreturn + scall diff --git a/libc/sysdeps/linux/avr32/sys/elf.h b/libc/sysdeps/linux/avr32/sys/elf.h new file mode 100644 index 000000000..3dbefae15 --- /dev/null +++ b/libc/sysdeps/linux/avr32/sys/elf.h @@ -0,0 +1,26 @@ +/* Copyright (C) 1996, 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_ELF_H +#define _SYS_ELF_H 1 + +#warning "This header is obsolete; use <sys/procfs.h> instead." + +#include <sys/procfs.h> + +#endif /* sys/elf.h */ diff --git a/libc/sysdeps/linux/avr32/sys/procfs.h b/libc/sysdeps/linux/avr32/sys/procfs.h new file mode 100644 index 000000000..af6dcb0ab --- /dev/null +++ b/libc/sysdeps/linux/avr32/sys/procfs.h @@ -0,0 +1,123 @@ +/* Copyright (C) 1996, 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_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' 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 (sizeof (struct user_regs) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* Register set for the floating-point registers. */ +typedef struct user_fpregs elf_fpregset_t; + +/* 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_fpregset_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/avr32/sys/ucontext.h b/libc/sysdeps/linux/avr32/sys/ucontext.h new file mode 100644 index 000000000..ba8940cb2 --- /dev/null +++ b/libc/sysdeps/linux/avr32/sys/ucontext.h @@ -0,0 +1,90 @@ +/* Copyright (C) 1998, 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. */ + +/* Linux/AVR32 ABI compliant context switching support. */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> +#include <sys/procfs.h> +#include <bits/sigcontext.h> + +typedef int greg_t; + +/* Number of general registers. */ +#define NGREG 16 + +/* Container for all general registers. */ +typedef elf_gregset_t gregset_t; + +/* Number of each register is the `gregset_t' array. */ +enum +{ + R0 = 0, +#define R0 R0 + R1 = 1, +#define R1 R1 + R2 = 2, +#define R2 R2 + R3 = 3, +#define R3 R3 + R4 = 4, +#define R4 R4 + R5 = 5, +#define R5 R5 + R6 = 6, +#define R6 R6 + R7 = 7, +#define R7 R7 + R8 = 8, +#define R8 R8 + R9 = 9, +#define R9 R9 + R10 = 10, +#define R10 R10 + R11 = 11, +#define R11 R11 + R12 = 12, +#define R12 R12 + R13 = 13, +#define R13 R13 + R14 = 14, +#define R14 R14 + R15 = 15 +#define R15 R15 +}; + +/* Structure to describe FPU registers. */ +typedef elf_fpregset_t fpregset_t; + +/* Context to describe whole processor state. */ +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; /* mask last for extensibility */ +} ucontext_t; + +#endif /* sys/ucontext.h */ diff --git a/libc/sysdeps/linux/avr32/sys/user.h b/libc/sysdeps/linux/avr32/sys/user.h new file mode 100644 index 000000000..4fa58480b --- /dev/null +++ b/libc/sysdeps/linux/avr32/sys/user.h @@ -0,0 +1,46 @@ +#ifndef _SYS_USER_H +#define _SYS_USER_H + +struct user_fpregs +{ + +}; + +struct user_regs +{ + unsigned long sr; + unsigned long pc; + unsigned long lr; + unsigned long sp; + unsigned long r12; + unsigned long r11; + unsigned long r10; + unsigned long r9; + unsigned long r8; + unsigned long r7; + unsigned long r6; + unsigned long r5; + unsigned long r4; + unsigned long r3; + unsigned long r2; + unsigned long r1; + unsigned long r0; + unsigned long r12_orig; +}; + +struct user +{ + struct user_regs regs; /* general registers */ + 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 user_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/avr32/syscall.S b/libc/sysdeps/linux/avr32/syscall.S new file mode 100644 index 000000000..f14fcdb30 --- /dev/null +++ b/libc/sysdeps/linux/avr32/syscall.S @@ -0,0 +1,71 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <features.h> + + .text + + /* + * long int syscall(long int sysno, ...) + */ + .global syscall + .type syscall, @function + .align 2 +syscall: + stm --sp, r3,r5,r6,lr + sub lr, sp, -16 + mov r8, r12 + ldm lr, r3,r5,r9-r12 + scall + cp.w r12, -4095 + brlo .Ldone + +#ifdef __PIC__ + lddpc r6, .Lgot +.Lgotcalc: + rsub r6, pc +# ifdef __UCLIBC_HAS_THREADS__ + rsub r3, r12, 0 + mcall r6[__errno_location@got] + st.w r12[0], r3 +# else + ld.w r3, r6[errno@got] + neg r12 + st.w r3[0], r12 +# endif +#else +# ifdef __UCLIBC_HAS_THREADS__ + rsub r3, r12, 0 + mcall .Lerrno_location + st.w r12[0], r3 +# else + lddpc r3, .Lerrno + neg r12 + st.w r3[0], r12 +# endif +#endif + mov r12, -1 + +.Ldone: + ldm sp++, r3,r5,r6,pc + + .align 2 +#ifdef __PIC__ +.Lgot: + .long .Lgotcalc - _GLOBAL_OFFSET_TABLE_ +#else +# ifdef __UCLIBC_HAS_THREADS__ +.Lerrno_location: + .long __errno_location +# else +.Lerrno: + .long errno +# endif +#endif + + + .size syscall, . - syscall diff --git a/libc/sysdeps/linux/avr32/vfork.S b/libc/sysdeps/linux/avr32/vfork.S new file mode 100644 index 000000000..d25fbecdb --- /dev/null +++ b/libc/sysdeps/linux/avr32/vfork.S @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2005 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +/* + * Clone the process without copying the address space. The + * calling process is suspended until the child either exits + * or calls execve. + * + * This all means that we cannot rely on the stack to store + * away registers, since they will be overwritten by the child + * as soon as it makes another function call (e.g. execve()). + * Fortunately, the Linux kernel preserves LR across system calls. + */ + +#include <features.h> +#include <sys/syscall.h> + + .global __vfork + .type __vfork,@function + .align 1 +__vfork: + mov r8, __NR_vfork + scall + cp.w r12, -4096 + retls r12 + + /* vfork failed, so we may use the stack freely */ + pushm r4-r7,lr +#ifdef __PIC__ + lddpc r6, .L_GOT + rsub r4, r12, 0 +.L_RGOT: + rsub r6, pc + mcall r6[__errno_location@got] +#else + rsub r4, r12, 0 + mcall .L__errno_location +#endif + st.w r12[0], r4 + popm r4-r7,pc,r12=-1 + + .align 2 +#ifdef __PIC__ +.L_GOT: + .long .L_RGOT - _GLOBAL_OFFSET_TABLE_ +#else +.L__errno_location: + .long __errno_location +#endif + .size __vfork, . - __vfork + +weak_alias(__vfork,vfork) +libc_hidden_weak(vfork) |