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 #elif defined(CONFIG_MIPS)/* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
  41 #warning MIPS version not implemented yet
  42         .global mon_getc
  43         .type   mon_getc,function
  44 mon_getc:
  45         .global mon_tstc
  46         .type   mon_tstc,function
  47 mon_tstc:
  48         .global mon_putc
  49         .type   mon_putc,function
  50 mon_putc:
  51         .global mon_puts
  52         .type   mon_puts,function
  53 mon_puts:
  54         .global mon_printf
  55         .type   mon_printf,function
  56 mon_printf:
  57         .global mon_install_hdlr
  58         .type   mon_install_hdlr,function
  59 mon_install_hdlr:
  60         .global mon_free_hdlr
  61         .type   mon_free_hdlr,function
  62 mon_free_hdlr:
  63         .global mon_malloc
  64         .type   mon_malloc,function
  65 mon_malloc:
  66         .global mon_free
  67         .type   mon_free,function
  68 mon_free:
  69
  70 #else
  71
  72 #ifdef CONFIG_I386 /* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
  73 #define SYMBOL_NAME(X)  X
  74 #define SYMBOL_NAME_LABEL(X)    X##:
  75
  76 #define SYSCALL(name,n) \
  77         .globl SYMBOL_NAME(name) ; \
  78 SYMBOL_NAME_LABEL(name)                  ; \
  79         movl    $n, %eax ;\
  80         pushl   %ebx; \
  81         pushl   %ecx; \
  82         int     $0x40 ;\
  83
  84
  85 #endif  /* CONFIG_I386 */
  86
  87 #ifdef CONFIG_PPC
  88 #define SYSCALL(name,n) \
  89         .globl name             ; \
  90 name:                           ; \
  91         li r0,n                 ; \
  92         sc                      ; \
  93         blr
  94 #endif  /* CONFIG_PPC */
  95
  96         .text
  97
  98         /*
  99          * Make sure these functions are in the same order as they
 100          * appear in the "include/syscall.h" header file !!!
 101          */
 102
 103         SYSCALL(mon_getc,SYSCALL_GETC)
 104         SYSCALL(mon_tstc,SYSCALL_TSTC)
 105         SYSCALL(mon_putc,SYSCALL_PUTC)
 106         SYSCALL(mon_puts,SYSCALL_PUTS)
 107         SYSCALL(mon_printf,SYSCALL_PRINTF)
 108         SYSCALL(mon_install_hdlr,SYSCALL_INSTALL_HDLR)
 109         SYSCALL(mon_free_hdlr,SYSCALL_FREE_HDLR)
 110         SYSCALL(mon_malloc,SYSCALL_MALLOC)
 111         SYSCALL(mon_free,SYSCALL_FREE)
 112         SYSCALL(mon_udelay,SYSCALL_UDELAY)
 113         SYSCALL(mon_get_timer,SYSCALL_GET_TIMER)
 114 #endif /* CONFIG_ARM XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */