diff options
Diffstat (limited to 'ports/sysdeps/arm/tls-macros.h')
| -rw-r--r-- | ports/sysdeps/arm/tls-macros.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/ports/sysdeps/arm/tls-macros.h b/ports/sysdeps/arm/tls-macros.h new file mode 100644 index 0000000000..e41d3bc5aa --- /dev/null +++ b/ports/sysdeps/arm/tls-macros.h @@ -0,0 +1,78 @@ +#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); }) |