Merge "mach-msm: common_log: add common log support" (2e712df6) · Commits · e / devices / android_kernel_sony_msm8994

drivers/soc/qcom/Kconfig

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		@@ -255,6 +255,15 @@ config MSM_MEMORY_DUMP_V2
		of deadlocks or cpu hangs these dump regions are captured to
		give a snapshot of the system at the time of the crash.

		config MSM_COMMON_LOG
		bool "MSM Common Log Support"
		depends on MSM_MEMORY_DUMP
		help
		Use this to export symbols of some log address and variables
		that need to parse crash dump files to a memory dump table. This
		table can be used by post analysis tools to extract information
		from memory when device crashes.

		config MSM_WATCHDOG_V2
		bool "MSM Watchdog Support"
		help

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		@@ -31,6 +31,7 @@ obj-$(CONFIG_MSM_SCM) += scm.o scm-boot.o
		obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o smd_private.o smd_init_dt.o smsm_debug.o
		obj-$(CONFIG_MSM_SMEM) += smem.o smem_debug.o
		obj-$(CONFIG_MSM_SMEM_LOGGING) += smem_log.o
		obj-$(CONFIG_MSM_COMMON_LOG) += common_log.o
		obj-$(CONFIG_MSM_SMP2P) += smp2p.o smp2p_debug.o
		obj-$(CONFIG_MSM_SMP2P_TEST) += smp2p_loopback.o smp2p_test.o smp2p_spinlock_test.o
		obj-$(CONFIG_MSM_WATCHDOG_V2) += watchdog_v2.o

0 → 100644

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		/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		* only version 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		*/

		#include <linux/module.h>
		#include <linux/kernel.h>
		#include <linux/init.h>
		#include <linux/kallsyms.h>
		#include <soc/qcom/memory_dump.h>

		static void __init common_log_register(void)
		{
		struct msm_client_dump dump;
		char **log_bufp;
		uint32_t *log_buf_lenp;

		log_bufp = (char **)kallsyms_lookup_name("log_buf");
		log_buf_lenp = (uint32_t *)kallsyms_lookup_name("log_buf_len");
		if (!log_bufp \|\| !log_buf_lenp) {
		pr_err("%s: Symbol log_buf not found!\n", __func__);
		return;
		}
		dump.id = MSM_LOG_BUF;
		dump.start_addr = virt_to_phys(*log_bufp);
		dump.end_addr = virt_to_phys(log_bufp + log_buf_lenp);
		if (msm_dump_tbl_register(&dump))
		pr_err("%s: Could not register log_buf.\n", __func__);
		}

		static int __init msm_common_log_init(void)
		{
		common_log_register();
		return 0;
		}
		late_initcall(msm_common_log_init);

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