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打印BackTrace

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2018/10/13 Share

Kernel code print backtrace

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//must set following options in kernel config
//Kernel hacking -> Kernel debugging
//Kernel hacking -> Verbose kernel error messages
dump_stack();

Android C code print backtrace

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//First add `LOCAL_SHARED_LIBRARIES += libcorkscrew` in Android.mk
#include <corkscrew/backtrace.h>
void print_backtrace()
{
    int i;
    char line[1024];
    backtrace_frame_t frames[256];
    ssize_t count = unwind_backtrace(frames, 2, sizeof(frames));
    backtrace_symbol_t symbols[count];
    get_backtrace_symbols(frames, count, symbols);
    for(i = 0; i < count; i++){
        memset(line, 0, 1024);
        format_backtrace_line(i, frames + i, symbols +i, line, 1024);
        ALOGE(" #%d %s\n", i,  line); /* use your logging here */
    }
    free_backtrace_symbols(symbols, count);
}

GNU C code print BackTrace

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#include <execinfo.h>
#include <stdio.h>
#include <stdlib.h>

void PrintTrace(int u8TraceSize)
{
        void *btArray[u8TraceSize];
        size_t btSize;
        char **strings;
        size_t i;
        btSize = backtrace(btArray, u8TraceSize);
        strings = backtrace_symbols(btArray, btSize);
        printf("\033[34;43m===BeckTrace Dump Start===\nObtained %zd stack frames.\n", btSize);
        for(i = 0; i < btSize; i++)
        {
                printf("#%d:%s\n", i, strings[i]);
        }
        printf("===BeckTrace Dump End===\033[0m\n");
        free(strings);
} 
//超过堆栈高度,会自动跳过
PrintTrace(20);

Android Java print backtrace

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Exception e = new Exception("This is a backtrace");
e.printStackTrace();
CATALOG
  1. 1. Kernel code print backtrace
  2. 2. Android C code print backtrace
  3. 3. GNU C code print BackTrace
  4. 4. Android Java print backtrace
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