gdb/testsuite/gdb.asm/sh.inc

   1 # You'll find a bunch of nop opcodes in the below macros.  They are
   2 # there to keep the code correctly aligned.  Be careful to maintain
   3 # them when changing the code.
   4
   5         comment "subroutine declare"
   6         .purgem gdbasm_declare
   7         .macro gdbasm_declare name
   8         .align  1
   9         .global \name
  10 \name:
  11         .endm
  12
  13         comment "subroutine prologue"
  14         .macro gdbasm_enter
  15         mov.l   r14,@-r15
  16         sts.l   pr,@-r15
  17         mov     r15,r14
  18         nop
  19         .endm
  20
  21         comment "subroutine epilogue"
  22         .macro gdbasm_leave
  23         mov     r14,r15
  24         lds.l   @r15+,pr
  25         mov.l   @r15+,r14
  26         rts
  27         nop
  28         nop
  29         .endm
  30
  31         comment "subroutine end"
  32         .purgem gdbasm_end
  33         .macro gdbasm_end name
  34         .size   \name, .-_foo1
  35         .align  1
  36         .endm
  37
  38         comment "subroutine call"
  39         .macro gdbasm_call subr
  40         mov.l   .Lconst\@,r1
  41         bra     .Lafterconst\@
  42         nop
  43         nop
  44 .Lconst\@:
  45         .align  2
  46         .long   \subr
  47         .align  1
  48 .Lafterconst\@:
  49         jsr     @r1
  50         nop
  51         .endm
  52
  53         .macro gdbasm_several_nops
  54         nop
  55         nop
  56         nop
  57         nop
  58         .endm
  59
  60         comment "exit (0)"
  61         .macro gdbasm_exit0
  62         sleep
  63         nop
  64         .endm
  65
  66         comment "crt0 startup"
  67         .macro gdbasm_startup
  68         mov.l   .stackaddr,r15
  69         bra     .afterstackaddr
  70         nop
  71         nop
  72         .align 2
  73 .stackaddr:
  74         .long   196608          ! 0x30000
  75         .align  1
  76 .afterstackaddr:
  77         .endm
  78
  79         comment "Declare a data variable"
  80         .purgem gdbasm_datavar
  81         .macro gdbasm_datavar name value
  82         .data
  83         .align 2
  84         .type   \name, @object
  85         .size   \name, 4
  86 \name:
  87         .long   \value
  88         .endm