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ACPICA: Disassembler: Add Switch/Case disassembly support 

ACPICA commit 0f6cc80e8af519a3c31184367b0a9be7a399cf53

iasl compiles Switch/Case statements into a single iteration While
loop with If/Else statements. This patch adds support to recognize
this generated compiler output and disassemble it back to the
original Switch statement.

Linux kernel is not affected by this patch.

Link: https://github.com/acpica/acpica/commit/0f6cc80e
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
David E. Box 2016-12-28 15:29:17 +08:00 committed by Rafael J. Wysocki
parent 5533308939
commit a654b8ca6d
1 changed files with 5 additions and 2 deletions
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7
drivers/acpi/acpica/aclocal.h
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@ -770,7 +770,7 @@ union acpi_parse_value {
char *operator_symbol;/* Used for C-style operator name strings */\
char aml_op_name[16]) /* Op name (debug only) */
/* Flags for disasm_flags field above */
/* Internal opcodes for disasm_opcode field above */
#define ACPI_DASM_BUFFER 0x00 /* Buffer is a simple data buffer */
#define ACPI_DASM_RESOURCE 0x01 /* Buffer is a Resource Descriptor */
@ -783,7 +783,10 @@ union acpi_parse_value {
#define ACPI_DASM_LNOT_PREFIX 0x08 /* Start of a Lnot_equal (etc.) pair of opcodes */
#define ACPI_DASM_LNOT_SUFFIX 0x09 /* End of a Lnot_equal (etc.) pair of opcodes */
#define ACPI_DASM_HID_STRING 0x0A /* String is a _HID or _CID */
#define ACPI_DASM_IGNORE 0x0B /* Not used at this time */
#define ACPI_DASM_IGNORE_SINGLE 0x0B /* Ignore the opcode but not it's children */
#define ACPI_DASM_SWITCH_PREDICATE 0x0C /* Object is a predicate for a Switch or Case block */
#define ACPI_DASM_CASE 0x0D /* If/Else is a Case in a Switch/Case block */
#define ACPI_DASM_DEFAULT 0x0E /* Else is a Default in a Switch/Case block */
/*
* Generic operation (for example: If, While, Store)