linux中strace记录所有的系统调用

    #include <stdio.h>
    #include <fcntl.h>
    #include <unistd.h>
    #include <malloc.h>

    int main(void)
    {
        int        handle,bytes;
        void    *ptr;

        handle    = open("hello.txt",O_RDONLY);
       
        ptr        = (void*)malloc(150);
       
        bytes    = read(handle,ptr,150);
        printf("%sn",(char*)ptr);

        free(ptr);
        close(handle);
        return 0;
    }

#!/bin/bash
echo "hello" > hello.txt
gcc test.c    -o t
strace -o log.txt ./t
exit

execve("./t", ["./t"], [/* 44 vars */]) = 0
    brk(0) = 0x925a000
    access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
    mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb783f000
    access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
    open("/etc/ld.so.cache", O_RDONLY) = 3
    fstat64(3, {st_mode=S_IFREG|0644, st_size=64033, ...}) = 0
    mmap2(NULL, 64033, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb782f000
    close(3) = 0
    access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
    open("/lib/i386-linux-gnu/libc.so.6", O_RDONLY) = 3
    read(3, "177ELF111331p2221004"..., 512) = 512
    fstat64(3, {st_mode=S_IFREG|0755, st_size=1544392, ...}) = 0
    mmap2(NULL, 1554968, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x8fd000
    mmap2(0xa73000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x176) = 0xa73000
    mmap2(0xa76000, 10776, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xa76000
    close(3) = 0
    mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb782e000
    set_thread_area({entry_number:-1 -> 6, base_addr:0xb782e8d0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
    mprotect(0xa73000, 8192, PROT_READ) = 0
    mprotect(0x8049000, 4096, PROT_READ) = 0
    mprotect(0x22e000, 4096, PROT_READ) = 0
    munmap(0xb782f000, 64033) = 0
    open("hello.txt", O_RDONLY) = 3
    brk(0) = 0x925a000
    brk(0x927b000) = 0x927b000
    read(3, "hellon", 150) = 6
    fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
    mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb783e000
    write(1, "hellon", 6) = 6
    write(1, "n", 1) = 1
    close(3) = 0
    exit_group(0) = ?