glibc/ports/sysdeps/arm/tls-macros.h

79 lines
2.0 KiB
C

#ifdef __thumb2__
#define ARM_PC_OFFSET "4"
#else
#define ARM_PC_OFFSET "8"
#endif
#define TLS_LE(x) \
({ int *__result; \
void *tp = __builtin_thread_pointer (); \
asm ("ldr %0, 1f; " \
"add %0, %1, %0; " \
"b 2f; " \
".align 2; " \
"1: .word " #x "(tpoff); " \
"2: " \
: "=&r" (__result) : "r" (tp)); \
__result; })
#ifdef __thumb2__
#define TLS_IE(x) \
({ int *__result; \
void *tp = __builtin_thread_pointer (); \
asm ("ldr %0, 1f; " \
"3: add %0, pc, %0;" \
"ldr %0, [%0];" \
"add %0, %1, %0; " \
"b 2f; " \
".align 2; " \
"1: .word " #x "(gottpoff) + (. - 3b - 4); " \
"2: " \
: "=&r" (__result) : "r" (tp)); \
__result; })
#else
#define TLS_IE(x) \
({ int *__result; \
void *tp = __builtin_thread_pointer (); \
asm ("ldr %0, 1f; " \
"3: ldr %0, [pc, %0];" \
"add %0, %1, %0; " \
"b 2f; " \
".align 2; " \
"1: .word " #x "(gottpoff) + (. - 3b - 8); " \
"2: " \
: "=&r" (__result) : "r" (tp)); \
__result; })
#endif
#define TLS_LD(x) \
({ char *__result; \
int __offset; \
extern void *__tls_get_addr (void *); \
asm ("ldr %0, 2f; " \
"1: add %0, pc, %0; " \
"b 3f; " \
".align 2; " \
"2: .word " #x "(tlsldm) + (. - 1b - "ARM_PC_OFFSET"); " \
"3: " \
: "=r" (__result)); \
__result = (char *)__tls_get_addr (__result); \
asm ("ldr %0, 1f; " \
"b 2f; " \
".align 2; " \
"1: .word " #x "(tlsldo); " \
"2: " \
: "=r" (__offset)); \
(int *) (__result + __offset); })
#define TLS_GD(x) \
({ int *__result; \
extern void *__tls_get_addr (void *); \
asm ("ldr %0, 2f; " \
"1: add %0, pc, %0; " \
"b 3f; " \
".align 2; " \
"2: .word " #x "(tlsgd) + (. - 1b - "ARM_PC_OFFSET"); " \
"3: " \
: "=r" (__result)); \
(int *)__tls_get_addr (__result); })