soc: qcom: Use debug symbol driver APIs for symbol address

Use debug symbol driver for finding required symbol address
information. These symbols are not exported from core kernel
anymore for vendor module usage and debug symbol driver APIs
provides symbol address for dumping.

Change-Id: I86536a26a283cb929210b959110e9009ce0198af
Signed-off-by: Prasad Sodagudi <[email protected]>

drivers/soc/qcom/minidump_log.c

@@ -27,6 +27,7 @@
 #include <linux/sched/task.h>
 #include <linux/suspend.h>
 #include <linux/vmalloc.h>
+#include <linux/android_debug_symbols.h>
 
 #ifdef CONFIG_QCOM_MINIDUMP_PANIC_DUMP
 #include <linux/bits.h>
@@ -189,12 +190,18 @@ static void register_kernel_sections(void)
 {
 	struct md_region ksec_entry;
 	char *data_name = "KDATABSS";
-	const size_t static_size = __per_cpu_end - __per_cpu_start;
-	void __percpu *base = (void __percpu *)__per_cpu_start;
+	size_t static_size;
+	void __percpu *base;
 	unsigned int cpu;
+	void *_sdata, *__bss_stop;
+
+	_sdata = android_debug_symbol(ADS_SDATA);
+	__bss_stop = android_debug_symbol(ADS_BSS_END);
+	base = android_debug_symbol(ADS_PER_CPU_START);
+	static_size = (size_t)(android_debug_symbol(ADS_PER_CPU_END) - base);
 
 	strlcpy(ksec_entry.name, data_name, sizeof(ksec_entry.name));
-	ksec_entry.virt_addr = (uintptr_t)_sdata;
+	ksec_entry.virt_addr = (u64)_sdata;
 	ksec_entry.phys_addr = virt_to_phys(_sdata);
 	ksec_entry.size = roundup((__bss_stop - _sdata), 4);
 	if (msm_minidump_add_region(&ksec_entry) < 0)
@@ -552,9 +559,10 @@ static void register_irq_stack(void)
 	u64 irq_stack_base;
 	struct md_region irq_sp_entry;
 	u64 sp;
+	u64 *irq_stack_ptr = android_debug_per_cpu_symbol(ADS_IRQ_STACK_PTR);
 
 	for_each_possible_cpu(cpu) {
-		irq_stack_base = (u64)per_cpu(irq_stack_ptr, cpu);
+		irq_stack_base = (u64)per_cpu_ptr((void *)irq_stack_ptr, cpu);
 		if (is_vmap_stack) {
 			irq_stack_pages_count = IRQ_STACK_SIZE / PAGE_SIZE;
 			sp = irq_stack_base & ~(PAGE_SIZE - 1);

drivers/soc/qcom/msm_minidump.c

@@ -16,6 +16,7 @@
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/slab.h>
+#include <linux/android_debug_symbols.h>
 #include <linux/soc/qcom/smem.h>
 #include <soc/qcom/minidump.h>
 #include "minidump_private.h"
@@ -437,8 +438,9 @@ static int msm_minidump_add_header(void)
 	struct elf_shdr *shdr;
 	struct elf_phdr *phdr;
 	unsigned int strtbl_off, elfh_size, phdr_off;
-	char *banner;
+	char *banner, *linux_banner;
 
+	linux_banner = android_debug_symbol(ADS_LINUX_BANNER);
 	/* Header buffer contains:
 	 * elf header, MAX_NUM_ENTRIES+4 of section and program elf headers,
 	 * string table section and linux banner.