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2002-07-01 Joel Sherrill <joel@OARcorp.com>

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* m68k-stub.c: Eliminated multi-line asm statements for gcc 3.x.
This commit is contained in:
Joel Sherrill
2002-07-01 22:21:52 +00:00
parent 17083dbe6c
commit f14b925ac0
2 changed files with 49 additions and 45 deletions
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4
c/src/lib/libbsp/m68k/shared/gdbstub/ChangeLog
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@@ -1,3 +1,7 @@
2002-07-01 Joel Sherrill <joel@OARcorp.com>
* m68k-stub.c: Eliminated multi-line asm statements for gcc 3.x.
2002-06-25 Thomas Doerfler <Thomas.Doerfler@imd-systems.de>
* Added m68k serial stub that is thread aware.

90
c/src/lib/libbsp/m68k/shared/gdbstub/m68k-stub.c
View File

@@ -261,35 +261,35 @@ void m68k_stub_dummy_asm_wrapper()
* that the C compiler manages sections properly
*/
{
asm("
.globl return_to_super
return_to_super:
move.l registers+60,%sp /* get new stack pointer */
move.l lastFrame,%a0 /* get last frame info */
bra return_to_any
.globl _return_to_user
return_to_user:
move.l registers+60,%a0 /* get usp */
move.l %a0,%usp /* set usp */
move.l superStack,%sp /* get original stack pointer */
return_to_any:
move.l lastFrame,%a0 /* get last frame info */
move.l (%a0)+,lastFrame /* link in previous frame */
addq.l #8,%a0 /* skip over pc, vector#*/
move.w (%a0)+,%d0 /* get # of words in cpu frame */
add.w %d0,%a0 /* point to end of data */
add.w %d0,%a0 /* point to end of data */
move.l %a0,%a1
#
# copy the stack frame
subq.l #1,%d0
copyUserLoop:
move.w -(%a1),-(%sp)
dbf %d0,copyUserLoop
");
RESTORE_FP_REGS()
asm("\n\
.globl return_to_super \n\
return_to_super: \n\
move.l registers+60,%sp /* get new stack pointer */ \n\
move.l lastFrame,%a0 /* get last frame info */ \n\
bra return_to_any \n\
\n\
.globl _return_to_user \n\
return_to_user: \n\
move.l registers+60,%a0 /* get usp */ \n\
move.l %a0,%usp /* set usp */ \n\
move.l superStack,%sp /* get original stack pointer */ \n\
\n\
return_to_any: \n\
move.l lastFrame,%a0 /* get last frame info */ \n\
move.l (%a0)+,lastFrame /* link in previous frame */ \n\
addq.l #8,%a0 /* skip over pc, vector#*/ \n\
move.w (%a0)+,%d0 /* get # of words in cpu frame */ \n\
add.w %d0,%a0 /* point to end of data */ \n\
add.w %d0,%a0 /* point to end of data */ \n\
move.l %a0,%a1 \n\
# \n\
# copy the stack frame \n\
subq.l #1,%d0 \n\
copyUserLoop: \n\
move.w -(%a1),-(%sp) \n\
dbf %d0,copyUserLoop \n\
");
RESTORE_FP_REGS()
asm(" movem.l registers,%d0-%d7/%a0-%a6");
asm(" rte"); /* pop and go! */
@@ -300,22 +300,22 @@ copyUserLoop:
/* if the previous interrupt level was 7 then we're already servicing */
/* this interrupt and an rte is in order to return to the debugger. */
/* For the 68000, the offset for sr is 6 due to the jsr return address */
asm("
.text
.globl _debug_level7
_debug_level7:
asm(" \n\
.text \n\
.globl _debug_level7 \n\
_debug_level7: \n\
move.w %d0,-(%sp)");
#if M68K_HAS_VBR
asm(" move.w 2(%sp),%d0");
#else
asm(" move.w 6(%sp),%d0");
#endif
asm(" andi.w #0x700,%d0
cmpi.w #0x700,%d0
beq already7
move.w (%sp)+,%d0
bra _catchException
already7:
asm(" andi.w #0x700,%d0 \n\
cmpi.w #0x700,%d0 \n\
beq already7 \n\
move.w (%sp)+,%d0 \n\
bra _catchException \n\
already7: \n\
move.w (%sp)+,%d0");
#if !M68K_HAS_VBR
asm(" lea 4(%sp),%sp"); /* pull off 68000 return address */
@@ -339,14 +339,14 @@ asm(" rte");
*
*
*/
asm("
.text
.globl _catchException
asm(" \n\
.text \n\
.globl _catchException \n\
_catchException:");
DISABLE_INTERRUPTS();
asm("
movem.l %d0-%d7/%a0-%a6,registers /* save registers */
move.l lastFrame,%a0 /* last frame pointer */
asm(" \n\
movem.l %d0-%d7/%a0-%a6,registers /* save registers */ \n\
move.l lastFrame,%a0 /* last frame pointer */ \n\
");
SAVE_FP_REGS();
asm("