diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/elf.h | 9 | ||||
| -rw-r--r-- | elf/tls-macros.h | 51 |
2 files changed, 57 insertions, 3 deletions
@@ -1979,10 +1979,19 @@ typedef Elf32_Addr Elf32_Conflict; #define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */ #define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */ +/* GNU relocs used in PIC code sequences. */ +#define R_PPC_REL16 249 /* word32 (sym-.) */ +#define R_PPC_REL16_LO 250 /* half16 (sym-.)@l */ +#define R_PPC_REL16_HI 251 /* half16 (sym-.)@h */ +#define R_PPC_REL16_HA 252 /* half16 (sym-.)@ha */ + /* This is a phony reloc to handle any old fashioned TOC16 references that may still be in object files. */ #define R_PPC_TOC16 255 +/* PowerPC specific values for the Dyn d_tag field. */ +#define DT_PPC_GOT (DT_LOPROC + 0) +#define DT_PPC_NUM 1 /* PowerPC64 relocations defined by the ABIs */ #define R_PPC64_NONE R_PPC_NONE diff --git a/elf/tls-macros.h b/elf/tls-macros.h index 0ae9e65dc0..37cbe7514f 100644 --- a/elf/tls-macros.h +++ b/elf/tls-macros.h @@ -703,6 +703,8 @@ register void *__gp __asm__("$29"); #elif defined __powerpc__ && !defined __powerpc64__ +#include "config.h" + # define __TLS_CALL_CLOBBERS \ "0", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", \ "lr", "ctr", "cr0", "cr1", "cr5", "cr6", "cr7" @@ -715,7 +717,20 @@ register void *__gp __asm__("$29"); __result; }) /* PowerPC32 Initial Exec TLS access. */ -# define TLS_IE(x) \ +# ifdef HAVE_ASM_PPC_REL16 +# define TLS_IE(x) \ + ({ int *__result; \ + asm ("bcl 20,31,1f\n1:\t" \ + "mflr %0\n\t" \ + "addis %0,%0,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t" \ + "addi %0,%0,_GLOBAL_OFFSET_TABLE_-1b@l\n\t" \ + "lwz %0," #x "@got@tprel(%0)\n\t" \ + "add %0,%0," #x "@tls" \ + : "=b" (__result) : \ + : "lr"); \ + __result; }) +# else +# define TLS_IE(x) \ ({ int *__result; \ asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t" \ "mflr %0\n\t" \ @@ -724,9 +739,24 @@ register void *__gp __asm__("$29"); : "=b" (__result) : \ : "lr"); \ __result; }) +# endif /* PowerPC32 Local Dynamic TLS access. */ -# define TLS_LD(x) \ +# ifdef HAVE_ASM_PPC_REL16 +# define TLS_LD(x) \ + ({ int *__result; \ + asm ("bcl 20,31,1f\n1:\t" \ + "mflr 3\n\t" \ + "addis 3,3,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t" \ + "addi 3,3,_GLOBAL_OFFSET_TABLE_-1b@l\n\t" \ + "addi 3,3," #x "@got@tlsld\n\t" \ + "bl __tls_get_addr@plt\n\t" \ + "addi %0,3," #x "@dtprel" \ + : "=r" (__result) : \ + : __TLS_CALL_CLOBBERS); \ + __result; }) +# else +# define TLS_LD(x) \ ({ int *__result; \ asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t" \ "mflr 3\n\t" \ @@ -736,9 +766,23 @@ register void *__gp __asm__("$29"); : "=r" (__result) : \ : __TLS_CALL_CLOBBERS); \ __result; }) +# endif /* PowerPC32 General Dynamic TLS access. */ -# define TLS_GD(x) \ +# ifdef HAVE_ASM_PPC_REL16 +# define TLS_GD(x) \ + ({ register int *__result __asm__ ("r3"); \ + asm ("bcl 20,31,1f\n1:\t" \ + "mflr 3\n\t" \ + "addis 3,3,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t" \ + "addi 3,3,_GLOBAL_OFFSET_TABLE_-1b@l\n\t" \ + "addi 3,3," #x "@got@tlsgd\n\t" \ + "bl __tls_get_addr@plt" \ + : : \ + : __TLS_CALL_CLOBBERS); \ + __result; }) +# else +# define TLS_GD(x) \ ({ register int *__result __asm__ ("r3"); \ asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t" \ "mflr 3\n\t" \ @@ -747,6 +791,7 @@ register void *__gp __asm__("$29"); : : \ : __TLS_CALL_CLOBBERS); \ __result; }) +# endif #elif defined __powerpc__ && defined __powerpc64__ |