Changeset fa23560 in mainline for uspace/lib/libc/arch/arm32/include/thread.h

Timestamp:

2007-10-30T22:54:11Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

4d21cf8

Parents:

b2a0f6dd

Message:

Unify implementations of TLS variant I and variant II alloc_tls() and
free_tls_arch().

File:

• uspace/lib/libc/arch/arm32/include/thread.h (modified) (3 diffs)

uspace/lib/libc/arch/arm32/include/thread.h

@@ -1 +1 @@
 /*
- * Copyright (c) 2007 Pavel Jancik, Michal Kebrt
+ * Copyright (c) 2007 Pavel Jancik
+ * Copyright (c) 2007 Michal Kebrt
  * All rights reserved.
  *
@@ -31 +32 @@
  */
 /** @file
- *  @brief Uspace threads and TLS.
  */
 
@@ -37 +37 @@
 #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