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sys/powerpc/aim/trap_subr64.S
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| * Now the kdb trap catching code. | * Now the kdb trap catching code. | ||||
| */ | */ | ||||
| dbtrap: | dbtrap: | ||||
| /* Write the trap vector to SPRG3 by computing LR & 0xff00 */ | /* Write the trap vector to SPRG3 by computing LR & 0xff00 */ | ||||
| mflr %r1 | mflr %r1 | ||||
| andi. %r1,%r1,0xff00 | andi. %r1,%r1,0xff00 | ||||
| mtsprg3 %r1 | mtsprg3 %r1 | ||||
| ld %r1,TRAP_TOCBASE(0) /* get new SP */ | GET_TOCBASE(%r1) | ||||
| ld %r1,TOC_REF(tmpstk)(%r1) | ld %r1,TOC_REF(trapstk)(%r1) | ||||
| addi %r1,%r1,(TMPSTKSZ-48) | addi %r1,%r1,(TRAPSTKSZ-48) | ||||
| FRAME_SETUP(PC_DBSAVE) | FRAME_SETUP(PC_DBSAVE) | ||||
| /* Call C trap code: */ | /* Call C trap code: */ | ||||
| GET_TOCBASE(%r2) | GET_TOCBASE(%r2) | ||||
| addi %r3,%r1,48 | addi %r3,%r1,48 | ||||
| bl CNAME(db_trap_glue) | bl CNAME(db_trap_glue) | ||||
| nop | nop | ||||
| or. %r3,%r3,%r3 | or. %r3,%r3,%r3 | ||||
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