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