uClibc/libc/sysdeps/linux/sparc/sysdep.h

   1 #ifndef _LINUX_SPARC_SYSDEP_H
   2 #define _LINUX_SPARC_SYSDEP_H 1
   3
   4 #include <common/sysdep.h>
   5
   6 #undef ENTRY
   7 #undef END
   8
   9 #ifdef __ASSEMBLER__
  10
  11 #define LOADSYSCALL(x) mov __NR_##x, %g1
  12
  13 #define ENTRY(name)                 \
  14     .align 4;                       \
  15     .global C_SYMBOL_NAME(name);    \
  16     .type   name, @function;        \
  17 C_LABEL(name)                       \
  18     cfi_startproc;
  19
  20 #define END(name)                   \
  21     cfi_endproc;                    \
  22     .size name, . - name
  23
  24 #define LOC(name) .L##name
  25
  26         /* If the offset to __syscall_error fits into a signed 22-bit
  27          * immediate branch offset, the linker will relax the call into
  28          * a normal branch.
  29          */
  30 #undef PSEUDO
  31 #undef PSEUDO_END
  32 #undef PSEUDO_NOERRNO
  33 #undef PSEUDO_ERRVAL
  34
  35 #define PSEUDO(name, syscall_name, args)        \
  36         .text;                                  \
  37         .globl          __syscall_error;        \
  38 ENTRY(name);                                    \
  39         LOADSYSCALL(syscall_name);              \
  40         ta              0x10;                   \
  41         bcc             1f;                     \
  42          mov            %o7, %g1;               \
  43         call            __syscall_error;        \
  44          mov            %g1, %o7;               \
  45 1:
  46
  47 #define PSEUDO_NOERRNO(name, syscall_name, args)\
  48         .text;                                  \
  49 ENTRY(name);                                    \
  50         LOADSYSCALL(syscall_name);              \
  51         ta              0x10;
  52
  53 #define PSEUDO_ERRVAL(name, syscall_name, args) \
  54         .text;                                  \
  55 ENTRY(name);                                    \
  56         LOADSYSCALL(syscall_name);              \
  57         ta              0x10;
  58
  59 #define PSEUDO_END(name)                        \
  60         END(name)
  61
  62
  63 #endif /* __ASSEMBLER__ */
  64
  65 /* Pointer mangling is not yet supported for SPARC.  */
  66 #define PTR_MANGLE(var) (void) (var)
  67 #define PTR_DEMANGLE(var) (void) (var)
  68
  69 #endif