objdump

I am running these two commands, and I'm getting different output: $ ldd `which ls` linux-gate.so.1 => (0x00db3000) libselinux.so.1 => /lib/i386-linux-gnu/libselinux.so.1 (0x00ba2000) librt.so.1 => /lib/i386-linux-gnu/librt.so.1 (0x007bf000) libacl.so.1 => /lib/i386-linux-gnu/libacl.so.1 (0x004ce000) libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0x00110000) libdl.so.2 => /lib/i386-linux-gnu/libdl.so.2 (0x00398000) /lib/ld-linux.so.2 (0x00dea000) libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0 (0x00a83000) libattr.so.1 => /lib/i386-linux-gnu/libattr.so.1 (0x00d3d000) and then objdump -x

How can I tell objdump to emit assembly in Intel Syntax rather than the default AT&T syntax? Daniel Kamil Kozar What you're looking for is -M intel . Use it as follows. objdump -M intel -d program_name If you want Intel mnemonic codes as well (instead of AT&T mnemonic codes), you can use: objdump -M intel intel-mnemonic -D <program's-object-file> 来源： https://stackoverflow.com/questions/10362630/how-can-objdump-emit-intel-syntax

Is there a script available for post processing some objdump --disassemble output to annotate with cycle counts? Especially for the ARM family. Most of the time this would only be a pattern match with a table lookup for the count. I guess annotations like +5M for five memory cycles might be needed. Perl, python, bash, C , etc are fine. I think this can be done generically, but I am interested in the ARM , which has an orthogonal instruction set. Here is a thread on the 68HC11 doing the same thing. The script would need an CPU model option to select the appropriate cycle counts; I think these

I'm currently doing my own objdump implementation in C. For my -s option, I have to show the full contents of the section of an ELF file. I'm doing it well, but i'm showing more sections than the "real" objdump. In fact, it does not output the .bss, .shstrtab, .symtab and .strtab sections. I'm looking around the sh_flags value on the Shdr struct but I can't find any logic... Why objdump -s does not shows these sections ? Why objdump -s does not shows these sections ? Objdump is based on libbfd , which abstracts away many complexities of ELF, and was written when objects tended to only have

I'm trying to execute a very simple buffer overflow attack. I'm pretty much a newbie to this. So, if this question is stupid, please excuse me :-) The code: #include<stdio.h> #include<stdlib.h> int i, n; void confused(int i) { printf("**Who called me? Why am I here?? *** %x\n ", i); } void shell_call(char *c) { printf(" ***Now calling \"%s\" shell command *** \n", c); system(c); } void victim_func() { int a[4]; printf("Enter n: "); scanf("%d",&n); printf("~~~~~~~~~~~~~ values and address of n locations ~~~~~~~~~~"); for (i = 0;i <n ;i++) printf ("\n a[%d] = %x, address = %x", i, a[i], &a[i]);

In the following assembly code that I dumped out using objdump : lea 0x0(%esi,%eiz,1),%esi What is register %eiz ? What does the preceding code mean? See Why Does GCC LEA EIZ? : Apparently %eiz is a pseudo-register that just evaluates to zero at all times (like r0 on MIPS). ... I eventually found a mailing list post by binutils guru Ian Lance Taylor that reveals the answer. Sometimes GCC inserts NOP instructions into the code stream to ensure proper alignment and stuff like that. The NOP instruction takes one byte, so you would think that you could just add as many as needed. But according to