102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include "ucli.h"
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#include "symbol.h"
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/**
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* @brief 调用ioctl
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*/
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long diag_call_ioctl(unsigned long request, unsigned long arg) {
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long ret = 0;
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int fd;
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fd = open(DEVICE, O_RDWR, 0);
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if (fd < 0) {
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printf("open %s error!\n", DEVICE);
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return -EEXIST;
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}
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ret = ioctl(fd, request, arg);
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if (ret < 0) {
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printf("call cmd %lx fail, ret is %ld\n", request, ret);
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goto err;
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}
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err:
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close(fd);
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return ret;
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}
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void extract_variant_buffer(char *buf, unsigned int len,
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int (*func)(void *, unsigned int, void *),
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void *arg) {
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unsigned int pos = 0;
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struct diag_variant_buffer_head *head;
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void *rec;
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int rec_len;
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char *ret;
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char dir[1024] = {0};
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ret = getcwd(dir, sizeof(dir));
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while (pos < len) {
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head = (struct diag_variant_buffer_head *)(buf + pos);
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if (pos + sizeof(struct diag_variant_buffer_head) >= len) break;
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if (head->magic != DIAG_VARIANT_BUFFER_HEAD_MAGIC_SEALED) break;
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if (head->len < sizeof(struct diag_variant_buffer_head)) break;
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rec = (void *)(buf + pos + sizeof(struct diag_variant_buffer_head));
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rec_len = head->len - sizeof(struct diag_variant_buffer_head);
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func(rec, rec_len, arg);
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pos += head->len;
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}
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if (ret) {
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(void)chdir(dir);
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}
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}
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void printk_task_brief(struct diag_task_detail *detail) {
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printk(" 进程信息： [%s / %s]， PID： %d / %d\n", detail->cgroup_buf,
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detail->comm, detail->tgid, detail->pid);
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}
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void diag_printf_kern_stack(kern_stack_detail *kern_stack, int reverse) {
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int i;
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symbol sym;
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printf(" 内核态堆栈：\n");
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if (reverse) {
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for (i = BACKTRACE_DEPTH - 1; i >= 0; i--) {
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if (kern_stack->stack[i] == (size_t)-1 || kern_stack->stack[i] == 0) {
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continue;
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}
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sym.reset(kern_stack->stack[i]);
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if (g_symbol_parser.find_kernel_symbol(sym)) {
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printf("#@ 0x%lx %s ([kernel.kallsyms])\n", kern_stack->stack[i],
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sym.name.c_str());
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} else {
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printf("#@ 0x%lx %s\n", kern_stack->stack[i], "UNKNOWN");
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}
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}
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} else {
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for (i = 0; i < BACKTRACE_DEPTH; i++) {
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if (kern_stack->stack[i] == (size_t)-1 || kern_stack->stack[i] == 0) {
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break;
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}
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sym.reset(kern_stack->stack[i]);
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if (g_symbol_parser.find_kernel_symbol(sym)) {
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printf("#@ 0x%lx %s ([kernel.kallsyms])\n", kern_stack->stack[i],
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sym.name.c_str());
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} else {
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printf("#@ 0x%lx %s\n", kern_stack->stack[i], "UNKNOWN");
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}
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}
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}
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}
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