mirror of
git://git.musl-libc.org/musl
synced 2024-12-20 13:51:47 +00:00
cb1bf2f321
using the actual mcontext_t definition rather than an overlaid pointer array both improves correctness/readability and eliminates some ugly hacks for archs with 64-bit registers bit 32-bit program counter. also fix UB due to comparison of pointers not in a common array object.
18 lines
463 B
C
18 lines
463 B
C
/* or1k use variant I, but with the twist that tp points to the end of TCB */
|
|
static inline struct pthread *__pthread_self()
|
|
{
|
|
#ifdef __clang__
|
|
char *tp;
|
|
__asm__ __volatile__ ("l.ori %0, r10, 0" : "=r" (tp) );
|
|
#else
|
|
register char *tp __asm__("r10");
|
|
__asm__ __volatile__ ("" : "=r" (tp) );
|
|
#endif
|
|
return (struct pthread *) (tp - sizeof(struct pthread));
|
|
}
|
|
|
|
#define TLS_ABOVE_TP
|
|
#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
|
|
|
|
#define MC_PC regs.pc
|