| /* Macros to support TLS testing in times of missing compiler support. */ |
| |
| #include <sys/cdefs.h> |
| #include <sys/asm.h> |
| #include <sysdep.h> |
| |
| #define __STRING2(X) __STRING(X) |
| #define ADDU __STRING2(PTR_ADDU) |
| #define ADDIU __STRING2(PTR_ADDIU) |
| #define LW __STRING2(PTR_L) |
| |
| /* Load the GOT pointer, which may not be in $28 in a non-PIC |
| (abicalls pic0) function. */ |
| #ifndef __PIC__ |
| # if _MIPS_SIM != _ABI64 |
| # ifndef __mips16 |
| # define LOAD_GP "move %[tmp], $28\n\tla $28, __gnu_local_gp\n\t" |
| # else |
| # define LOAD_GP \ |
| "li %[tmp], %%hi(__gnu_local_gp)\n\t" \ |
| "sll %[tmp], 16\n\t" \ |
| "addiu %[tmp], %%lo(__gnu_local_gp)\n\t" |
| # endif |
| # else |
| # define LOAD_GP "move %[tmp], $28\n\tdla $28, __gnu_local_gp\n\t" |
| # endif |
| # define UNLOAD_GP "\n\tmove $28, %[tmp]" |
| #else |
| /* MIPS16 (re)creates the GP value using PC-relative instructions. */ |
| # ifdef __mips16 |
| # define LOAD_GP \ |
| "li %[tmp], %%hi(_gp_disp)\n\t" \ |
| "addiu %0, $pc, %%lo(_gp_disp)\n\t" \ |
| "sll %[tmp], 16\n\t" \ |
| "addu %[tmp], %0\n\t" |
| # else |
| # define LOAD_GP |
| # endif |
| # define UNLOAD_GP |
| #endif |
| |
| # if __mips_isa_rev >= 2 |
| # define TLS_RDHWR "rdhwr\t%0,$29" |
| # else |
| # define TLS_RDHWR \ |
| ".set push\n\t.set mips32r2\n\t" \ |
| "rdhwr\t%0,$29\n\t.set pop" |
| #endif |
| |
| #ifndef __mips16 |
| # define TLS_GD(x) \ |
| ({ void *__result, *__tmp; \ |
| extern void *__tls_get_addr (void *); \ |
| asm (LOAD_GP ADDIU " %0, $28, %%tlsgd(" #x ")" \ |
| UNLOAD_GP \ |
| : "=r" (__result), [tmp] "=&r" (__tmp)); \ |
| (int *)__tls_get_addr (__result); }) |
| # define TLS_LD(x) \ |
| ({ void *__result, *__tmp; \ |
| extern void *__tls_get_addr (void *); \ |
| asm (LOAD_GP ADDIU " %0, $28, %%tlsldm(" #x ")" \ |
| UNLOAD_GP \ |
| : "=r" (__result), [tmp] "=&r" (__tmp)); \ |
| __result = __tls_get_addr (__result); \ |
| asm ("lui $3,%%dtprel_hi(" #x ")\n\t" \ |
| "addiu $3,$3,%%dtprel_lo(" #x ")\n\t" \ |
| ADDU " %0,%0,$3" \ |
| : "+r" (__result) : : "$3"); \ |
| __result; }) |
| # define TLS_IE(x) \ |
| ({ void *__result, *__tmp; \ |
| asm (TLS_RDHWR \ |
| : "=v" (__result)); \ |
| asm (LOAD_GP LW " $3,%%gottprel(" #x ")($28)\n\t" \ |
| ADDU " %0,%0,$3" \ |
| UNLOAD_GP \ |
| : "+r" (__result), [tmp] "=&r" (__tmp) \ |
| : : "$3"); \ |
| __result; }) |
| # define TLS_LE(x) \ |
| ({ void *__result; \ |
| asm (TLS_RDHWR \ |
| : "=v" (__result)); \ |
| asm ("lui $3,%%tprel_hi(" #x ")\n\t" \ |
| "addiu $3,$3,%%tprel_lo(" #x ")\n\t" \ |
| ADDU " %0,%0,$3" \ |
| : "+r" (__result) : : "$3"); \ |
| __result; }) |
| |
| #else /* __mips16 */ |
| /* MIPS16 version. */ |
| # define TLS_GD(x) \ |
| ({ void *__result, *__tmp; \ |
| extern void *__tls_get_addr (void *); \ |
| asm (LOAD_GP ADDIU " %1, %%tlsgd(" #x ")" \ |
| "\n\tmove %0, %1" \ |
| : "=d" (__result), [tmp] "=&d" (__tmp)); \ |
| (int *) __tls_get_addr (__result); }) |
| # define TLS_LD(x) \ |
| ({ void *__result, *__tmp; \ |
| extern void *__tls_get_addr (void *); \ |
| asm (LOAD_GP ADDIU " %1, %%tlsldm(" #x ")" \ |
| "\n\tmove %0, %1" \ |
| : "=d" (__result), [tmp] "=&d" (__tmp)); \ |
| __result = __tls_get_addr (__result); \ |
| asm ("li $3,%%dtprel_hi(" #x ")\n\t" \ |
| "sll $3,16\n\t" \ |
| "addiu $3,%%dtprel_lo(" #x ")\n\t" \ |
| ADDU " %0,%0,$3" \ |
| : "+d" (__result) : : "$3"); \ |
| __result; }) |
| # define TLS_IE(x) \ |
| ({ void *__result, *__tmp, *__tp; \ |
| __tp = __builtin_thread_pointer (); \ |
| asm (LOAD_GP LW " $3,%%gottprel(" #x ")(%1)\n\t" \ |
| ADDU " %0,%[tp],$3" \ |
| : "=&d" (__result), [tmp] "=&d" (__tmp) \ |
| : [tp] "d" (__tp) : "$3"); \ |
| __result; }) |
| # define TLS_LE(x) \ |
| ({ void *__result, *__tp; \ |
| __tp = __builtin_thread_pointer (); \ |
| asm ("li $3,%%tprel_hi(" #x ")\n\t" \ |
| "sll $3,16\n\t" \ |
| "addiu $3,%%tprel_lo(" #x ")\n\t" \ |
| ADDU " %0,%[tp],$3" \ |
| : "=d" (__result) : [tp] "d" (__tp) : "$3"); \ |
| __result; }) |
| |
| #endif /* __mips16 */ |