blob: 8fe2e4a150dbac107c5cc18d192ece338d98d5cf [file] [log] [blame]
/* Macros to support TLS testing in times of missing compiler support. */
#include <sys/cdefs.h>
#include <sys/asm.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
# define LOAD_GP "move %[tmp], $28\n\tla $28, __gnu_local_gp\n\t"
# else
# define LOAD_GP "move %[tmp], $28\n\tdla $28, __gnu_local_gp\n\t"
# endif
# define UNLOAD_GP "\n\tmove $28, %[tmp]"
#else
# define LOAD_GP
# define UNLOAD_GP
#endif
# 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 (".set push\n\t.set mips32r2\n\t" \
"rdhwr\t%0,$29\n\t.set pop" \
: "=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 (".set push\n\t.set mips32r2\n\t" \
"rdhwr\t%0,$29\n\t.set pop" \
: "=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; })