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| author | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
| commit | e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch) | |
| tree | dff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/mips/tls-macros.h | |
| parent | 75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff) | |
| parent | e64ac02c24b43659048622714afdc92fedf561fa (diff) | |
| download | glibc-2.16.90.tar glibc-2.16.90.tar.gz glibc-2.16.90.tar.bz2 glibc-2.16.90.zip | |
Merge glibc-ports into ports/ directory.glibc-2.16.90glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/mips/tls-macros.h')
| -rw-r--r-- | ports/sysdeps/mips/tls-macros.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/ports/sysdeps/mips/tls-macros.h b/ports/sysdeps/mips/tls-macros.h new file mode 100644 index 0000000000..8fe2e4a150 --- /dev/null +++ b/ports/sysdeps/mips/tls-macros.h @@ -0,0 +1,64 @@ +/* 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; }) |