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Save DAR/DSISR in DDB regsave area when stack overflow detected. It's

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hard to work out where the problem was without these.
This commit is contained in:
Peter Grehan 2004-07-27 03:46:34 +00:00
parent 0047b9a96a
commit 1f1b01c0a5
2 changed files with 8 additions and 0 deletions
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4
sys/powerpc/aim/trap_subr.S
View file

@ -373,6 +373,10 @@ disitrap:
/* Now convert this DSI into a DDB trap. */
GET_CPUINFO(%r1)
lwz %r30,(PC_TEMPSAVE+CPUSAVE_DAR)(%r1) /* get DAR */
stw %r30,(PC_DBSAVE +CPUSAVE_DAR)(%r1) /* save DAR */
lwz %r30,(PC_TEMPSAVE+CPUSAVE_DSISR)(%r1) /* get DSISR */
lwz %r30,(PC_DBSAVE +CPUSAVE_DSISR)(%r1) /* save DSISR */
lwz %r30,(PC_DISISAVE+CPUSAVE_R28)(%r1) /* get r28 */
stw %r30,(PC_DBSAVE +CPUSAVE_R28)(%r1) /* save r28 */
lwz %r31,(PC_DISISAVE+CPUSAVE_R29)(%r1) /* get r29 */

4
sys/powerpc/powerpc/trap_subr.S
View file

@ -373,6 +373,10 @@ disitrap:
/* Now convert this DSI into a DDB trap. */
GET_CPUINFO(%r1)
lwz %r30,(PC_TEMPSAVE+CPUSAVE_DAR)(%r1) /* get DAR */
stw %r30,(PC_DBSAVE +CPUSAVE_DAR)(%r1) /* save DAR */
lwz %r30,(PC_TEMPSAVE+CPUSAVE_DSISR)(%r1) /* get DSISR */
lwz %r30,(PC_DBSAVE +CPUSAVE_DSISR)(%r1) /* save DSISR */
lwz %r30,(PC_DISISAVE+CPUSAVE_R28)(%r1) /* get r28 */
stw %r30,(PC_DBSAVE +CPUSAVE_R28)(%r1) /* save r28 */
lwz %r31,(PC_DISISAVE+CPUSAVE_R29)(%r1) /* get r29 */