Subversion Repositories HelenOS

Rev

Rev 2568 | Rev 4256 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2568 Rev 2586
Line 39... Line 39...
39 
#include <kernel/proc/uarg.h>
 39 
#include <kernel/proc/uarg.h>
40 
#include <fibril.h>
 40 
#include <fibril.h>
41 
#include <string.h>
 41 
#include <string.h>
42 
#include <async.h>
 42 
#include <async.h>
43 
 
 43 
 
44 
#include <stdio.h>
 - 
 
45 
 
 - 
 
46 
 
 - 
 
47 
#ifndef THREAD_INITIAL_STACK_PAGES_NO
 44 
#ifndef THREAD_INITIAL_STACK_PAGES_NO
48 
#define THREAD_INITIAL_STACK_PAGES_NO 1
 45 
#define THREAD_INITIAL_STACK_PAGES_NO 1
49 
#endif
 46 
#endif
50 
 
 47 
 
51 
static LIST_INITIALIZE(thread_garbage);
 - 
 
52 
 
 - 
 
53 
extern char _tdata_start;
 - 
 
54 
extern char _tdata_end;
 - 
 
55 
extern char _tbss_start;
 - 
 
56 
extern char _tbss_end;
 - 
 
57 
 
 - 
 
58 
/** Create TLS (Thread Local Storage) data structures.
 - 
 
59 
 *
 - 
 
60 
 * The code requires, that sections .tdata and .tbss are adjacent. It may be
 - 
 
61 
 * changed in the future.
 - 
 
62 
 *
 - 
 
63 
 * @return Pointer to TCB.
 - 
 
64 
 */
 - 
 
65 
tcb_t *__make_tls(void)
 - 
 
66 
{
 - 
 
67 
    void *data;
 - 
 
68 
    tcb_t *tcb;
 - 
 
69 
    size_t tls_size = &_tbss_end - &_tdata_start;
 - 
 
70 
   
 - 
 
71 
    tcb = __alloc_tls(&data, tls_size);
 - 
 
72 
   
 - 
 
73 
    /*
 - 
 
74 
     * Copy thread local data from the initialization image.
 - 
 
75 
     */
 - 
 
76 
    memcpy(data, &_tdata_start, &_tdata_end - &_tdata_start);
 - 
 
77 
    /*
 - 
 
78 
     * Zero out the thread local uninitialized data.
 - 
 
79 
     */
 - 
 
80 
    memset(data + (&_tbss_start - &_tdata_start), 0,
 - 
 
81 
        &_tbss_end - &_tbss_start);
 - 
 
82 
 
 - 
 
83 
    return tcb;
 - 
 
84 
}
 - 
 
85 
 
 - 
 
86 
void __free_tls(tcb_t *tcb)
 - 
 
87 
{
 - 
 
88 
    size_t tls_size = &_tbss_end - &_tdata_start;
 - 
 
89 
    __free_tls_arch(tcb, tls_size);
 - 
 
90 
}
 - 
 
91 
 
 - 
 
92 
/** Main thread function.
 48 
/** Main thread function.
93 
 *
 49 
 *
94 
 * This function is called from __thread_entry() and is used
 50 
 * This function is called from __thread_entry() and is used
95 
 * to call the thread's implementing function and perform cleanup
 51 
 * to call the thread's implementing function and perform cleanup
96 
 * and exit when thread returns back. Do not call this function
 52 
 * and exit when thread returns back. Do not call this function