examples/syscall.S

   1 #include <ppc_asm.tmpl>
   2 #include <ppc_defs.h>
   3 #include <syscall.h>
   4
   5 #ifdef CONFIG_ARM /* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
   6 #warning ARM version not implemented yet /* XXXXXXXXXXXXXXXXXXXXXXXXXXXX */
   7         .global mon_getc
   8         .type   mon_getc,function
   9 mon_getc:
  10         .global mon_tstc
  11         .type   mon_tstc,function
  12 mon_tstc:
  13         .global mon_putc
  14         .type   mon_putc,function
  15 mon_putc:
  16         .global mon_puts
  17         .type   mon_puts,function
  18 mon_puts:
  19         .global mon_printf
  20         .type   mon_printf,function
  21 mon_printf:
  22         .global mon_install_hdlr
  23         .type   mon_install_hdlr,function
  24 mon_install_hdlr:
  25         .global mon_free_hdlr
  26         .type   mon_free_hdlr,function
  27 mon_free_hdlr:
  28         .global mon_malloc
  29         .type   mon_malloc,function
  30 mon_malloc:
  31         .global mon_free
  32         .type   mon_free,function
  33 mon_free:
  34         @ args = 0, pretend = 0, frame = 0
  35         @ frame_needed = 1, current_function_anonymous_args = 0
  36         mov     ip, sp
  37         stmfd   sp!, {fp, ip, lr, pc}
  38         sub     fp, ip, #4
  39         ldmea   fp, {fp, sp, pc}
  40 #else /* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
  41
  42 #ifdef CONFIG_I386 /* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
  43 #define SYMBOL_NAME(X)  X
  44 #define SYMBOL_NAME_LABEL(X)    X##:
  45
  46 #define SYSCALL(name,n) \
  47         .globl SYMBOL_NAME(name) ; \
  48 SYMBOL_NAME_LABEL(name)                  ; \
  49         ret
  50
  51 #endif  /* CONFIG_I386 */
  52
  53 #ifdef CONFIG_PPC
  54 #define SYSCALL(name,n) \
  55         .globl name             ; \
  56 name:                           ; \
  57         li r0,n                 ; \
  58         sc                      ; \
  59         blr
  60 #endif  /* CONFIG_PPC */
  61
  62         .text
  63
  64         /*
  65          * Make sure these functions are in the same order as they
  66          * appear in the "include/syscall.h" header file !!!
  67          */
  68
  69         SYSCALL(mon_getc,SYSCALL_GETC)
  70         SYSCALL(mon_tstc,SYSCALL_TSTC)
  71         SYSCALL(mon_putc,SYSCALL_PUTC)
  72         SYSCALL(mon_puts,SYSCALL_PUTS)
  73         SYSCALL(mon_printf,SYSCALL_PRINTF)
  74         SYSCALL(mon_install_hdlr,SYSCALL_INSTALL_HDLR)
  75         SYSCALL(mon_free_hdlr,SYSCALL_FREE_HDLR)
  76         SYSCALL(mon_malloc,SYSCALL_MALLOC)
  77         SYSCALL(mon_free,SYSCALL_FREE)
  78 #endif /* CONFIG_ARM XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */