/trunk/uspace/lib/libc/arch/arm32/include/tls.h |
---|
0,0 → 1,99 |
/* |
* Copyright (c) 2007 Pavel Jancik |
* Copyright (c) 2007 Michal Kebrt |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup libcarm32 |
* @{ |
*/ |
/** @file |
*/ |
#ifndef LIBC_arm32_TLS_H_ |
#define LIBC_arm32_TLS_H_ |
#include <sys/types.h> |
#define CONFIG_TLS_VARIANT_1 |
/** Offsets for accessing __thread variables are shifted 8 bytes higher. */ |
#define ARM_TP_OFFSET (-8) |
/** TCB (Thread Control Block) struct. |
* |
* TLS starts just after this struct. |
*/ |
typedef struct { |
/** Fibril data. */ |
void *fibril_data; |
} tcb_t; |
/** Sets TLS address to the r9 register. |
* |
* @param tcb TCB (TLS starts behind) |
*/ |
static inline void __tcb_set(tcb_t *tcb) |
{ |
void *tls = (void *) tcb; |
tls += sizeof(tcb_t) + ARM_TP_OFFSET; |
asm volatile ( |
"mov r9, %0" |
: |
: "r" (tls) |
); |
} |
/** Returns TCB address. |
* |
* @return TCB address (starts before TLS which address is stored |
* in r9 register). |
*/ |
static inline tcb_t *__tcb_get(void) |
{ |
void *ret; |
asm volatile ( |
"mov %0, r9" |
: "=r"(ret) |
); |
return (tcb_t *) (ret - ARM_TP_OFFSET - sizeof(tcb_t)); |
} |
/** Returns TLS address stored. |
* |
* Implemented in assembly. |
* |
* @return TLS address stored in r9 register |
*/ |
extern uintptr_t __aeabi_read_tp(void); |
#endif |
/** @} |
*/ |
/trunk/uspace/lib/libc/arch/arm32/include/thread.h |
---|
1,5 → 1,6 |
/* |
* Copyright (c) 2007 Pavel Jancik, Michal Kebrt |
* Copyright (c) 2007 Pavel Jancik |
* Copyright (c) 2007 Michal Kebrt |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
30,69 → 31,11 |
* @{ |
*/ |
/** @file |
* @brief Uspace threads and TLS. |
*/ |
#ifndef LIBC_arm32_THREAD_H_ |
#define LIBC_arm32_THREAD_H_ |
#include <unistd.h> |
/** Stack initial size. */ |
#define THREAD_INITIAL_STACK_PAGES_NO 1 |
/** Offsets for accessing __thread variables are shifted 8 bytes higher. */ |
#define ARM_TP_OFFSET (-8) |
/** TCB (Thread Control Block) struct. |
* |
* TLS starts just after this struct. |
*/ |
typedef struct { |
/** Fibril data. */ |
void *fibril_data; |
} tcb_t; |
/** Sets TLS address to the r9 register. |
* |
* @param tcb TCB (TLS starts behind) |
*/ |
static inline void __tcb_set(tcb_t *tcb) |
{ |
void *tls = (void *) tcb; |
tls += sizeof(tcb_t) + ARM_TP_OFFSET; |
asm volatile ( |
"mov r9, %0" |
: |
: "r"(tls) |
); |
} |
/** Returns TCB address. |
* |
* @return TCB address (starts before TLS which address is stored in r9 register). |
*/ |
static inline tcb_t *__tcb_get(void) |
{ |
void *ret; |
asm volatile ( |
"mov %0, r9" |
: "=r"(ret) |
); |
return (tcb_t *) (ret - ARM_TP_OFFSET - sizeof(tcb_t)); |
} |
/** Returns TLS address stored. |
* |
* Implemented in assembly. |
* |
* @return TLS address stored in r9 register |
*/ |
extern uintptr_t __aeabi_read_tp(void); |
#endif |
/** @} |
/trunk/uspace/lib/libc/arch/arm32/Makefile.inc |
---|
1,5 → 1,6 |
# |
# Copyright (c) 2007 Michal Kebrt, Pavel Jancik |
# Copyright (c) 2007 Michal Kebrt |
# Copyright (c) 2007 Pavel Jancik |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
37,7 → 38,7 |
ARCH_SOURCES += arch/$(ARCH)/src/syscall.c \ |
arch/$(ARCH)/src/fibril.S \ |
arch/$(ARCH)/src/thread.c \ |
arch/$(ARCH)/src/tls.c \ |
arch/$(ARCH)/src/eabi.S |
BFD_NAME = elf32-littlearm |
/trunk/uspace/lib/libc/arch/arm32/src/thread.c |
---|
File deleted |
/trunk/uspace/lib/libc/arch/arm32/src/tls.c |
---|
0,0 → 1,51 |
/* |
* Copyright (c) 2007 Pavel Jancik |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup libcarm32 arm32 |
* @brief arm32 architecture dependent parts of libc |
* @ingroup lc |
* @{ |
*/ |
/** @file |
*/ |
#include <tls.h> |
#include <sys/types.h> |
tcb_t * __alloc_tls(void **data, size_t size) |
{ |
return tls_alloc_variant_1(data, size); |
} |
void __free_tls_arch(tcb_t *tcb, size_t size) |
{ |
tls_free_variant_1(tcb, size); |
} |
/** @} |
*/ |