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soc: qcom: minidump: Switch to use debug_symbol

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Switch to debug_symbol driver for the get the needed symbol
address for minidump feature.

Change-Id: I3eb16d495244dd2a45af4ff37781c62328f19938
Signed-off-by: Huang Yiwei <quic_hyiwei@quicinc.com>
This commit is contained in:
Huang Yiwei 2022-11-25 18:20:57 +08:00
parent a7d9cbfd4a
commit ea1aa11085
2 changed files with 13 additions and 10 deletions
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16
drivers/soc/qcom/minidump_log.c
View File

@ -28,7 +28,7 @@
#include <linux/suspend.h>
#include <linux/vmalloc.h>
#include <linux/panic_notifier.h>
#include <linux/android_debug_symbols.h>
#include "debug_symbol.h"
#ifdef CONFIG_QCOM_MINIDUMP_PSTORE
#include <linux/math64.h>
#include <linux/of.h>
@ -195,10 +195,10 @@ static void register_kernel_sections(void)
void *_sdata, *__bss_stop;
void *start_ro, *end_ro;
_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);
_sdata = (void *)debug_symbol_lookup_name("_sdata");
__bss_stop = (void *)debug_symbol_lookup_name("__bss_stop");
base = (void *)debug_symbol_lookup_name("__per_cpu_start");
static_size = (size_t)((void *)debug_symbol_lookup_name("__per_cpu_end") - base);
strscpy(ksec_entry.name, data_name, sizeof(ksec_entry.name));
ksec_entry.virt_addr = (u64)_sdata;
@ -207,8 +207,8 @@ static void register_kernel_sections(void)
if (msm_minidump_add_region(&ksec_entry) < 0)
pr_err("Failed to add data section in Minidump\n");
start_ro = android_debug_symbol(ADS_START_RO_AFTER_INIT);
end_ro = android_debug_symbol(ADS_END_RO_AFTER_INIT);
start_ro = (void *)debug_symbol_lookup_name("__start_ro_after_init");
end_ro = (void *)debug_symbol_lookup_name("__end_ro_after_init");
strscpy(ksec_entry.name, rodata_name, sizeof(ksec_entry.name));
ksec_entry.virt_addr = (uintptr_t)start_ro;
ksec_entry.phys_addr = virt_to_phys(start_ro);
@ -567,7 +567,7 @@ 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);
u64 *irq_stack_ptr = (void *)debug_symbol_lookup_name("irq_stack_ptr");
for_each_possible_cpu(cpu) {
irq_stack_base = *(u64 *)(per_cpu_ptr((void *)irq_stack_ptr, cpu));

7
drivers/soc/qcom/msm_minidump.c
View File

@ -17,10 +17,10 @@
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/android_debug_symbols.h>
#include <linux/gunyah/gh_rm_drv.h>
#include <linux/soc/qcom/smem.h>
#include <soc/qcom/minidump.h>
#include "debug_symbol.h"
#include "minidump_private.h"
#include "elf.h"
@ -833,7 +833,7 @@ static int msm_minidump_add_header(void)
char *banner, *linux_banner;
int slot_num;
linux_banner = android_debug_symbol(ADS_LINUX_BANNER);
linux_banner = (void *)debug_symbol_lookup_name("linux_banner");
/* Header buffer contains:
* elf header, MAX_NUM_ENTRIES+4 of section and program elf headers,
* string table section and linux banner.
@ -963,6 +963,9 @@ static int msm_minidump_driver_probe(struct platform_device *pdev)
unsigned long flags;
int ret;
if (debug_symbol_available())
return -EPROBE_DEFER;
is_rm_minidump =
of_device_is_compatible(pdev->dev.of_node, "qcom,minidump-rm");