Tag Archives: gdb

Hacking Valgrind

Posted on July 7, 2018 by daveti

This post talks about 3 commits I have recently added into my own valgrind tree [1], including the support for fsgsbase instructions, rdrand/rdseed instructions, and adding a new trapdoor (client request) to support gdb-like add-symbol-file command. Note that all these … Continue reading →

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Intel x86 32-bit assembly – function call & stack frame

Posted on January 27, 2012 by daveti

This post is originally written for a basic view on function call and stack frame in Intel x86 32-bit assembly code. EBP and ESP are the focus. A stack layout pic with dynamic register changes is also down there. May … Continue reading →

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x86 assembly programming with GNU – tool tips

Posted on March 3, 2011 by daveti

1. coding pattern # Pattern used by as and ld .section .data < initialized data here> .section .bss < uninitialized data here> .section .text .globl _start _start: < instruction code here> ———————————- # Pattern used by gcc .section .data < … Continue reading →

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