diff options
Diffstat (limited to 'libc/sysdeps/linux/cris/sysdep.h')
| -rw-r--r-- | libc/sysdeps/linux/cris/sysdep.h | 79 |
1 files changed, 55 insertions, 24 deletions
diff --git a/libc/sysdeps/linux/cris/sysdep.h b/libc/sysdeps/linux/cris/sysdep.h index b441ff122..593e7772e 100644 --- a/libc/sysdeps/linux/cris/sysdep.h +++ b/libc/sysdeps/linux/cris/sysdep.h @@ -40,9 +40,13 @@ #define END(sym) #endif -#define C_SYMBOL_NAME(name) name +#undef SYS_ify +#define SYS_ify(syscall_name) (__NR_##syscall_name) -#ifdef __ASSEMBLER__ +#ifdef __ASSEMBLER__ + +#undef SYS_ify +#define SYS_ify(syscall_name) __NR_##syscall_name /* Syntactic details of assembly-code. */ @@ -54,24 +58,54 @@ of relying on hearsay. */ #define ALIGNARG(log2) log2 -#define ASM_GLOBAL_DIRECTIVE .globl #define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg #define ASM_SIZE_DIRECTIVE(name) .size name,.-name /* The non-PIC jump is preferred, since it does not stall, and does not invoke generation of a PLT. These macros assume that $r0 is set up as GOT register. */ +#ifdef __arch_v32 +#ifdef __PIC__ +#define PLTJUMP(_x) \ + ba C_SYMBOL_NAME (_x):PLT @ \ + nop + +#define PLTCALL(_x) \ + bsr C_SYMBOL_NAME (_x):PLT @ \ + nop + +#define SETUP_PIC \ + subq 4,$sp @ \ + move.d $r0,[$sp] @ \ + lapc _GLOBAL_OFFSET_TABLE_,$r0 + +#define TEARDOWN_PIC move.d [$sp+],$r0 +#else +#define PLTJUMP(_x) \ + ba C_SYMBOL_NAME (_x) @ \ + nop + +#define PLTCALL(_x) \ + bsr C_SYMBOL_NAME (_x) @ \ + nop + +#define SETUP_PIC +#define TEARDOWN_PIC +#endif + +#else + #ifdef __PIC__ #define PLTJUMP(_x) \ - add.d C_SYMBOL_NAME (_x):PLT,$pc + add.d C_SYMBOL_NAME (_x):PLT,$pc #define PLTCALL(_x) \ jsr [$r0+C_SYMBOL_NAME (_x):GOTPLT16] #define SETUP_PIC \ - push $r0 @ \ + push $r0 @ \ move.d $pc,$r0 @ \ - sub.d .:GOTOFF,$r0 + sub.d .:GOTOFF,$r0 #define TEARDOWN_PIC pop $r0 #else @@ -81,38 +115,35 @@ #define TEARDOWN_PIC #endif +#endif /* __arch_v32 */ + /* Define an entry point visible from C. */ -#define ENTRY(name) \ +#define ENTRY(name) \ .text @ \ ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (name) @ \ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME (name), function) @ \ .align ALIGNARG (2) @ \ - C_LABEL(name) @ \ - CALL_MCOUNT + C_LABEL(name) -#undef END +#undef END #define END(name) \ ASM_SIZE_DIRECTIVE (C_SYMBOL_NAME (name)) #define PSEUDO(name, syscall_name, args) \ - ENTRY (name) @ \ - DOARGS_##args @ \ - movu.w SYS_ify (syscall_name),$r9 @ \ - break 13 @ \ - cmps.w -4096,$r10 @ \ - bhs 0f @ \ - nop @ \ + ENTRY (name) @ \ + DOARGS_##args @ \ + movu.w SYS_ify (syscall_name),$r9 @ \ + break 13 @ \ + cmps.w -4096,$r10 @ \ + bhs 0f @ \ + nop @ \ UNDOARGS_return_##args #define PSEUDO_END(name) \ -0: @ \ - SETUP_PIC @ \ - PLTJUMP (__syscall_error) @ \ +0: @ \ + SETUP_PIC @ \ + PLTJUMP (__syscall_error) @ \ END (name) -/* If compiled for profiling, do nothing */ -#define CALL_MCOUNT /* Do nothing. */ - - #endif /* __ASSEMBLER__ */ #endif /* _SYSDEP_H_ */ |