| /programs/develop/libraries/newlib/reent/getreent.c |
|---|
| 29,40 → 29,6 |
| __sinit(ent); |
| } |
| void init_global_reent() |
| { |
| struct _reent *ent; |
| ent =_GLOBAL_REENT; |
| _REENT_INIT_PTR(ent); |
| __asm__ __volatile__( |
| "movl %0, %%fs:12" |
| ::"r"(ent)); |
| __sinit(ent); |
| } |
| void __mutex_lock(volatile int *val) |
| { |
| int tmp; |
| __asm__ __volatile__ ( |
| "0:\n\t" |
| "mov %0, %1\n\t" |
| "testl %1, %1\n\t" |
| "jz 1f\n\t" |
| "movl $68, %%eax\n\t" |
| "movl $1, %%ebx\n\t" |
| "int $0x40\n\t" |
| "jmp 0b\n\t" |
| "1:\n\t" |
| "incl %1\n\t" |
| "xchgl %0, %1\n\t" |
| "testl %1, %1\n\t" |
| "jnz 0b\n" |
| : "+m" (*val), "=&r"(tmp) |
| ::"eax","ebx" ); |
| } |