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set default newlib dir's structure

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git-svn-id: svn://kolibrios.org@4874 a494cfbc-eb01-0410-851d-a64ba20cac60
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Sergey Semyonov (Serge)
2014-04-22 09:02:02 +00:00
parent 47fd2fdc08
commit 846fce0120
651 changed files with 0 additions and 0 deletions
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23
contrib/sdk/sources/newlib/libc/reent/mutex.c Normal file
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@@ -0,0 +1,23 @@
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" );
}