commit 9badf5579d99ade42fa311932154778adcadcc76
author Aurelien Jarno <aurelien@aurel32.net> Mon Jan 17 19:29:34 2011 +0100
committer Aurelien Jarno <aurelien@aurel32.net> Mon Jan 24 20:52:19 2011 +0100
tree da107e6fb7addd3b31b69e6f04dd867bec9595fe
parent 4a9048a9142863ef247d794a1a56d2debb8e910f

target-mips: fix save_cpu_state() calls

The rule is:
- don't save PC if the exception is only triggered by softmmu.
- save PC if the exception can be triggered by an helper.

Fix a 64-bit kernel crash when loading modules.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
(cherry picked from commit b835e919f022d768abdf00e8dc94f1a23fdcab15)

target-mips/translate.c

diff --git a/target-mips/translate.c b/target-mips/translate.c
index 6c72dee..389f13c 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -1066,7 +1066,7 @@
         opn = "ld";
         break;
     case OPC_LLD:
-        save_cpu_state(ctx, 0);
+        save_cpu_state(ctx, 1);
         op_ld_lld(t0, t0, ctx);
         gen_store_gpr(t0, rt);
         opn = "lld";
@@ -1086,7 +1086,7 @@
         opn = "ldr";
         break;
     case OPC_LDPC:
-        save_cpu_state(ctx, 1);
+        save_cpu_state(ctx, 0);
         tcg_gen_movi_tl(t1, pc_relative_pc(ctx));
         gen_op_addr_add(ctx, t0, t0, t1);
         op_ld_ld(t0, t0, ctx);
@@ -1095,7 +1095,7 @@
         break;
 #endif
     case OPC_LWPC:
-        save_cpu_state(ctx, 1);
+        save_cpu_state(ctx, 0);
         tcg_gen_movi_tl(t1, pc_relative_pc(ctx));
         gen_op_addr_add(ctx, t0, t0, t1);
         op_ld_lw(t0, t0, ctx);
@@ -1236,7 +1236,7 @@
     switch (opc) {
 #if defined(TARGET_MIPS64)
     case OPC_SCD:
-        save_cpu_state(ctx, 0);
+        save_cpu_state(ctx, 1);
         op_st_scd(t1, t0, rt, ctx);
         opn = "scd";
         break;
@@ -9939,7 +9939,7 @@
         opn = "lwp";
         break;
     case SWP:
-        save_cpu_state(ctx, 1);
+        save_cpu_state(ctx, 0);
         gen_load_gpr(t1, rd);
         op_st_sw(t1, t0, ctx);
         tcg_gen_movi_tl(t1, 4);
@@ -9960,7 +9960,7 @@
         opn = "ldp";
         break;
     case SDP:
-        save_cpu_state(ctx, 1);
+        save_cpu_state(ctx, 0);
         gen_load_gpr(t1, rd);
         op_st_sd(t1, t0, ctx);
         tcg_gen_movi_tl(t1, 8);