diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/sparc32')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h | 110 |
1 files changed, 62 insertions, 48 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h index 3cb0a48c95..8af045dc2b 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h @@ -57,20 +57,14 @@ C_LABEL(name) \ #define LOC(name) .L##name - /* If the offset to __syscall_error fits into a signed 22-bit - * immediate branch offset, the linker will relax the call into - * a normal branch. - */ #define PSEUDO(name, syscall_name, args) \ .text; \ - .globl __syscall_error; \ ENTRY(name); \ LOADSYSCALL(syscall_name); \ ta 0x10; \ bcc 1f; \ - mov %o7, %g1; \ - call __syscall_error; \ - mov %g1, %o7; \ + nop; \ + SYSCALL_ERROR_HANDLER \ 1: #define PSEUDO_NOERRNO(name, syscall_name, args)\ @@ -88,50 +82,70 @@ ENTRY(name); \ #define PSEUDO_END(name) \ END(name) -#else /* __ASSEMBLER__ */ - -#if defined SHARED && defined DO_VERSIONING && defined PIC \ - && !defined NO_HIDDEN && !defined NOT_IN_libc -# define CALL_ERRNO_LOCATION "call __GI___errno_location;" +#ifndef PIC +# define SYSCALL_ERROR_HANDLER \ + mov %o7, %g1; \ + call __syscall_error; \ + mov %g1, %o7; #else -# define CALL_ERRNO_LOCATION "call __errno_location;" -#endif +# if RTLD_PRIVATE_ERRNO +# define SYSCALL_ERROR_HANDLER \ +0: SETUP_PIC_REG(o2,g1) \ + sethi %hi(rtld_errno), %g1; \ + or %g1, %lo(rtld_errno), %g1; \ + ld [%o2 + %g1], %g1; \ + st %o0, [%g1]; \ + jmp %o7 + 8; \ + mov -1, %o0; +# elif defined _LIBC_REENTRANT + +# if USE___THREAD +# ifndef NOT_IN_libc +# define SYSCALL_ERROR_ERRNO __libc_errno +# else +# define SYSCALL_ERROR_ERRNO errno +# endif +# define SYSCALL_ERROR_HANDLER \ +0: SETUP_PIC_REG(o2,g1) \ + sethi %tie_hi22(SYSCALL_ERROR_ERRNO), %g1; \ + add %g1, %tie_lo10(SYSCALL_ERROR_ERRNO), %g1; \ + ld [%o2 + %g1], %g1, %tie_ld(SYSCALL_ERROR_ERRNO); \ + st %o0, [%g7 + %g1]; \ + jmp %o7 + 8; \ + mov -1, %o0; +# else +# define SYSCALL_ERROR_HANDLER \ +0: save %sp, -96, %sp; \ + cfi_def_cfa_register(%fp); \ + cfi_window_save; \ + cfi_register (%o7, %i7); \ + call __errno_location; \ + nop; \ + st %i0, [%o0]; \ + jmp %i7 + 8; \ + restore %g0, -1, %o0; +# endif +# else +# define SYSCALL_ERROR_HANDLER \ +0: SETUP_PIC_REG(o2,g1) \ + sethi %hi(errno), %g1; \ + or %g1, %lo(errno), %g1; \ + ld [%o2 + %g1], %g1; \ + st %o0, [%g1]; \ + jmp %o7 + 8; \ + mov -1, %o0; +# endif /* _LIBC_REENTRANT */ +#endif /* PIC */ + + +#else /* __ASSEMBLER__ */ #define __SYSCALL_STRING \ "ta 0x10;" \ - "bcs 2f;" \ - " nop;" \ - "1:" \ - ".subsection 2;" \ - "2:" \ - "save %%sp, -192, %%sp;" \ - CALL_ERRNO_LOCATION \ - " nop;" \ - "st %%i0,[%%o0];" \ - "ba 1b;" \ - " restore %%g0, -1, %%o0;" \ - ".previous;" - -#define __CLONE_SYSCALL_STRING \ - "ta 0x10;" \ - "bcs 2f;" \ - " sub %%o1, 1, %%o1;" \ - "and %%o0, %%o1, %%o0;" \ - "1:" \ - ".subsection 2;" \ - "2:" \ - "save %%sp, -192, %%sp;" \ - CALL_ERRNO_LOCATION \ - " nop;" \ - "st %%i0, [%%o0];" \ - "ba 1b;" \ - " restore %%g0, -1, %%o0;" \ - ".previous;" - -#define __INTERNAL_SYSCALL_STRING \ - "ta 0x10;" \ - "bcs,a 1f;" \ - " sub %%g0, %%o0, %%o0;" \ + "bcc 1f;" \ + " mov 0, %%g1;" \ + "sub %%g0, %%o0, %%o0;" \ + "mov 1, %%g1;" \ "1:" #define __SYSCALL_CLOBBERS \ |