Changeset 70259a55 in mainline for kernel/arch/ia64/include/arch/istate_struct.h

Timestamp:

2018-09-11T21:01:08Z (6 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e38ff16

Parents:

d2c91ab

Message:

ia64: Use appropriate imm21 operand with BREAK

This commit changes the imm21 used with the BREAK instruction to conform
to the IA-64 Software Conventions and Runtime Architecture Guide. This
is necessary to be able to distinguish syscalls from compiler-generated
calls to architected software interrupts (e.g. integer divide by zero).

In order to be able to test the used immediate in break_instruction(),
we extend istate_t to hold the CR.IIM register.

File:

• kernel/arch/ia64/include/arch/istate_struct.h (modified) (2 diffs)

kernel/arch/ia64/include/arch/istate_struct.h

@@ -72 +72 @@
 #define ISTATE_OFFSET_CR_IPSR           0x230
 #define ISTATE_OFFSET_CR_IIP            0x238
-#define ISTATE_OFFSET_PR                0x240
-#define ISTATE_OFFSET_SP                0x248
-#define ISTATE_OFFSET_IN0               0x250
-#define ISTATE_OFFSET_IN1               0x258
-#define ISTATE_OFFSET_IN2               0x260
-#define ISTATE_OFFSET_IN3               0x268
-#define ISTATE_OFFSET_IN4               0x270
-#define ISTATE_OFFSET_IN5               0x278
-#define ISTATE_OFFSET_IN6               0x280
+#define ISTATE_OFFSET_CR_IIM            0x240
+#define ISTATE_OFFSET_PR                0x248
+#define ISTATE_OFFSET_SP                0x250
+#define ISTATE_OFFSET_IN0               0x258
+#define ISTATE_OFFSET_IN1               0x260
+#define ISTATE_OFFSET_IN2               0x268
+#define ISTATE_OFFSET_IN3               0x270
+#define ISTATE_OFFSET_IN4               0x278
+#define ISTATE_OFFSET_IN5               0x280
+#define ISTATE_OFFSET_IN6               0x288
 #define ISTATE_SIZE                     0x290
 
@@ -138 +139 @@
         psr_t cr_ipsr;
         uintptr_t cr_iip;
+        uint64_t cr_iim;
         uint64_t pr;
         uintptr_t sp;