diff options
Diffstat (limited to 'libc/sysdeps/linux/powerpc/sysdep.h')
| -rw-r--r-- | libc/sysdeps/linux/powerpc/sysdep.h | 104 |
1 files changed, 93 insertions, 11 deletions
diff --git a/libc/sysdeps/linux/powerpc/sysdep.h b/libc/sysdeps/linux/powerpc/sysdep.h index 9a57062dc..c512c5ab5 100644 --- a/libc/sysdeps/linux/powerpc/sysdep.h +++ b/libc/sysdeps/linux/powerpc/sysdep.h @@ -16,6 +16,7 @@ <http://www.gnu.org/licenses/>. */ #include <common/sysdep.h> +#include <sys/syscall.h> /* * Powerpc Feature masks for the Aux Vector Hardware Capabilities (AT_HWCAP). @@ -169,9 +170,6 @@ #define VRSAVE 256 - -#ifdef __ELF__ - /* This seems to always be the case on PPC. */ #define ALIGNARG(log2) log2 /* For ELF we need the `.type' directive to make shared libs work right. */ @@ -182,14 +180,98 @@ #undef NO_UNDERSCORES #define NO_UNDERSCORES -#endif /* __ELF__ */ +#define ENTRY(name) \ + .globl C_SYMBOL_NAME(name); \ + ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \ + .align ALIGNARG(2); \ + C_LABEL(name) \ + cfi_startproc; \ -# include <sys/syscall.h> -# if defined(__powerpc64__) -# include "powerpc64/sysdep.h" -# else -# include "powerpc32/sysdep.h" -# endif +#define EALIGN_W_0 /* No words to insert. */ +#define EALIGN_W_1 nop +#define EALIGN_W_2 nop;nop +#define EALIGN_W_3 nop;nop;nop +#define EALIGN_W_4 EALIGN_W_3;nop +#define EALIGN_W_5 EALIGN_W_4;nop +#define EALIGN_W_6 EALIGN_W_5;nop +#define EALIGN_W_7 EALIGN_W_6;nop -#endif /* __ASSEMBLER__ */ +#define EALIGN(name, alignt, words) \ + .globl C_SYMBOL_NAME(name); \ + ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \ + .align ALIGNARG(alignt); \ + EALIGN_W_##words; \ + C_LABEL(name) \ + cfi_startproc; + +#undef END +#define END(name) \ + cfi_endproc; \ + ASM_SIZE_DIRECTIVE(name) + +#define DO_CALL(syscall) \ + li 0,syscall; \ + sc + +#undef JUMPTARGET +#ifdef PIC +# define JUMPTARGET(name) name##@plt +#else +# define JUMPTARGET(name) name +#endif + +#if defined SHARED && defined DO_VERSIONING && defined PIC \ + && !defined NO_HIDDEN +# undef HIDDEN_JUMPTARGET +# define HIDDEN_JUMPTARGET(name) __GI_##name##@local +#endif + +#define PSEUDO(name, syscall_name, args) \ + .section ".text"; \ + ENTRY (name) \ + DO_CALL (SYS_ify (syscall_name)); + +#define PSEUDO_RET \ + bnslr+; \ + b __syscall_error@local +#define ret PSEUDO_RET + +#undef PSEUDO_END +#define PSEUDO_END(name) \ + END (name) +#define PSEUDO_NOERRNO(name, syscall_name, args) \ + .section ".text"; \ + ENTRY (name) \ + DO_CALL (SYS_ify (syscall_name)); + +#define PSEUDO_RET_NOERRNO \ + blr +#define ret_NOERRNO PSEUDO_RET_NOERRNO + +#undef PSEUDO_END_NOERRNO +#define PSEUDO_END_NOERRNO(name) \ + END (name) + +#define PSEUDO_ERRVAL(name, syscall_name, args) \ + .section ".text"; \ + ENTRY (name) \ + DO_CALL (SYS_ify (syscall_name)); + +#define PSEUDO_RET_ERRVAL \ + blr +#undef ret_ERRVAL +#define ret_ERRVAL PSEUDO_RET_ERRVAL + +#undef PSEUDO_END_ERRVAL +#define PSEUDO_END_ERRVAL(name) \ + END (name) + +/* Local labels stripped out by the linker. */ +#undef L +#define L(x) .L##x + +/* Label in text section. */ +#define C_TEXT(name) name + +#endif /* __ASSEMBLER__ */ |