| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Thu, 23 Jul 2015 12:53:07 +0800
From: Lv Zheng <lv.zheng@...el.com>
To: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Len Brown <len.brown@...el.com>
Cc: Lv Zheng <lv.zheng@...el.com>, Lv Zheng <zetalog@...il.com>,
<linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org,
Bob Moore <robert.moore@...el.com>
Subject: [PATCH 10/22] ACPICA: Executer: Add OSL trace hook support.
ACPICA commit e8e4a9b19d0b72a7b165398bdc961fc2f6f502ec
This patch adds OSL trace hook support.
OSPMs are encouraged to use acpi_os_trace_point() with
ACPI_USE_SYSTEM_TRACER defined to implement platform specific trace
facility. Lv Zheng.
Link: https://github.com/acpica/acpica/commit/e8e4a9b1
Signed-off-by: Lv Zheng <lv.zheng@...el.com>
Signed-off-by: Bob Moore <robert.moore@...el.com>
---
drivers/acpi/acpica/acinterp.h | 4 ++
drivers/acpi/acpica/exdebug.c | 125 ++++++++++++++++++++++++++++------------
drivers/acpi/acpica/utdebug.c | 31 +++++++++-
include/acpi/acoutput.h | 3 +
include/acpi/acpiosxf.h | 6 ++
include/acpi/acpixf.h | 5 ++
include/acpi/actypes.h | 8 +++
7 files changed, 144 insertions(+), 38 deletions(-)
diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index a3c6e2a..e820ed8 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -149,6 +149,10 @@ void
acpi_ex_stop_trace_opcode(union acpi_parse_object *op,
struct acpi_walk_state *walk_state);
+void
+acpi_ex_trace_point(acpi_trace_event_type type,
+ u8 begin, u8 *aml, char *pathname);
+
/*
* exfield - ACPI AML (p-code) execution - field manipulation
*/
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
index 00ba9fc..708b2ae 100644
--- a/drivers/acpi/acpica/exdebug.c
+++ b/drivers/acpi/acpica/exdebug.c
@@ -52,6 +52,12 @@ ACPI_MODULE_NAME("exdebug")
static union acpi_operand_object *acpi_gbl_trace_method_object = NULL;
+/* Local prototypes */
+
+#ifdef ACPI_DEBUG_OUTPUT
+static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type);
+#endif
+
#ifndef ACPI_NO_ERROR_MESSAGES
/*******************************************************************************
*
@@ -365,6 +371,78 @@ static u8 acpi_ex_interpreter_trace_enabled(char *name)
/*******************************************************************************
*
+ * FUNCTION: acpi_ex_get_trace_event_name
+ *
+ * PARAMETERS: type - Trace event type
+ *
+ * RETURN: Trace event name.
+ *
+ * DESCRIPTION: Used to obtain the full trace event name.
+ *
+ ******************************************************************************/
+
+#ifdef ACPI_DEBUG_OUTPUT
+
+static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type)
+{
+ switch (type) {
+ case ACPI_TRACE_AML_METHOD:
+
+ return "Method";
+
+ case ACPI_TRACE_AML_OPCODE:
+
+ return "Opcode";
+
+ case ACPI_TRACE_AML_REGION:
+
+ return "Region";
+
+ default:
+
+ return "";
+ }
+}
+
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_trace_point
+ *
+ * PARAMETERS: type - Trace event type
+ * begin - TRUE if before execution
+ * aml - Executed AML address
+ * pathname - Object path
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Internal interpreter execution trace.
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_trace_point(acpi_trace_event_type type,
+ u8 begin, u8 *aml, char *pathname)
+{
+
+ ACPI_FUNCTION_NAME(ex_trace_point);
+
+ if (pathname) {
+ ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+ "%s %s [0x%p:%s] execution.\n",
+ acpi_ex_get_trace_event_name(type),
+ begin ? "Begin" : "End", aml, pathname));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+ "%s %s [0x%p] execution.\n",
+ acpi_ex_get_trace_event_name(type),
+ begin ? "Begin" : "End", aml));
+ }
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_ex_start_trace_method
*
* PARAMETERS: method_node - Node of the method
@@ -417,16 +495,9 @@ acpi_ex_start_trace_method(struct acpi_namespace_node *method_node,
exit:
if (enabled) {
- if (pathname) {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "Begin method [0x%p:%s] execution.\n",
- obj_desc->method.aml_start,
- pathname));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "Begin method [0x%p] execution.\n",
- obj_desc->method.aml_start));
- }
+ ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, TRUE,
+ obj_desc ? obj_desc->method.aml_start : NULL,
+ pathname);
}
if (pathname) {
ACPI_FREE(pathname);
@@ -473,16 +544,9 @@ acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node,
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
if (enabled) {
- if (pathname) {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "End method [0x%p:%s] execution.\n",
- obj_desc->method.aml_start,
- pathname));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "End method [0x%p] execution.\n",
- obj_desc->method.aml_start));
- }
+ ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, FALSE,
+ obj_desc ? obj_desc->method.aml_start : NULL,
+ pathname);
}
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
@@ -535,20 +599,8 @@ acpi_ex_start_trace_opcode(union acpi_parse_object *op,
ACPI_FUNCTION_NAME(ex_start_trace_opcode);
if (acpi_ex_interpreter_trace_enabled(NULL)) {
- if (walk_state->op_info) {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "Begin opcode: %s[0x%p] Class=0x%02x, Type=0x%02x, Flags=0x%04x.\n",
- op->common.aml_op_name,
- op->common.aml,
- walk_state->op_info->class,
- walk_state->op_info->type,
- walk_state->op_info->flags));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "Begin opcode: %s[0x%p].\n",
- op->common.aml_op_name,
- op->common.aml));
- }
+ ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, TRUE,
+ op->common.aml, op->common.aml_op_name);
}
}
@@ -574,8 +626,7 @@ acpi_ex_stop_trace_opcode(union acpi_parse_object *op,
ACPI_FUNCTION_NAME(ex_stop_trace_opcode);
if (acpi_ex_interpreter_trace_enabled(NULL)) {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "End opcode: %s[0x%p].\n",
- op->common.aml_op_name, op->common.aml));
+ ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, FALSE,
+ op->common.aml, op->common.aml_op_name);
}
}
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index cd02693..4146229 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -45,6 +45,7 @@
#include <acpi/acpi.h>
#include "accommon.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utdebug")
@@ -560,8 +561,37 @@ acpi_ut_ptr_exit(u32 line_number,
}
}
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_trace_point
+ *
+ * PARAMETERS: type - Trace event type
+ * begin - TRUE if before execution
+ * aml - Executed AML address
+ * pathname - Object path
+ * pointer - Pointer to the related object
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Interpreter execution trace.
+ *
+ ******************************************************************************/
+
+void
+acpi_trace_point(acpi_trace_event_type type, u8 begin, u8 *aml, char *pathname)
+{
+
+ ACPI_FUNCTION_ENTRY();
+
+ acpi_ex_trace_point(type, begin, aml, pathname);
+
+#ifdef ACPI_USE_SYSTEM_TRACER
+ acpi_os_trace_point(type, begin, aml, pathname);
#endif
+}
+ACPI_EXPORT_SYMBOL(acpi_trace_point)
+#endif
#ifdef ACPI_APPLICATION
/*******************************************************************************
*
@@ -575,7 +605,6 @@ acpi_ut_ptr_exit(u32 line_number,
* DESCRIPTION: Print error message to the console, used by applications.
*
******************************************************************************/
-
void ACPI_INTERNAL_VAR_XFACE acpi_log_error(const char *format, ...)
{
va_list args;
diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index 37f46d4..c3f0ac1 100644
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -447,6 +447,8 @@
#define ACPI_DUMP_PATHNAME(a, b, c, d) acpi_ns_dump_pathname(a, b, c, d)
#define ACPI_DUMP_BUFFER(a, b) acpi_ut_debug_dump_buffer((u8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)
+#define ACPI_TRACE_POINT(a, b, c, d) acpi_trace_point (a, b, c, d)
+
#else /* ACPI_DEBUG_OUTPUT */
/*
* This is the non-debug case -- make everything go away,
@@ -468,6 +470,7 @@
#define ACPI_DUMP_PATHNAME(a, b, c, d)
#define ACPI_DUMP_BUFFER(a, b)
#define ACPI_IS_DEBUG_ENABLED(level, component) 0
+#define ACPI_TRACE_POINT(a, b, c, d)
/* Return macros must have a return statement at the minimum */
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index d02df0a..a54ad1c 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -430,4 +430,10 @@ long acpi_os_get_file_offset(ACPI_FILE file);
acpi_status acpi_os_set_file_offset(ACPI_FILE file, long offset, u8 from);
#endif
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_trace_point
+void
+acpi_os_trace_point(acpi_trace_event_type type,
+ u8 begin, u8 *aml, char *pathname);
+#endif
+
#endif /* __ACPIOSXF_H__ */
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 9c362cf..9aa27a3 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -909,6 +909,11 @@ ACPI_DBG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(6)
const char *module_name,
u32 component_id,
const char *format, ...))
+
+ACPI_DBG_DEPENDENT_RETURN_VOID(void
+ acpi_trace_point(acpi_trace_event_type type,
+ u8 begin,
+ u8 *aml, char *pathname))
ACPI_APP_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(1)
void ACPI_INTERNAL_VAR_XFACE
acpi_log_error(const char *format, ...))
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 0f3913f..531eca4 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -1247,6 +1247,14 @@ struct acpi_memory_list {
#endif
};
+/* Definitions of trace event types */
+
+typedef enum {
+ ACPI_TRACE_AML_METHOD,
+ ACPI_TRACE_AML_OPCODE,
+ ACPI_TRACE_AML_REGION
+} acpi_trace_event_type;
+
/* Definitions of _OSI support */
#define ACPI_VENDOR_STRINGS 0x01
--
1.7.10
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists