I am using Ubuntu 22.04 and I have an STM32F4 Discovery board which has an stf32f407vg MCU on it. I am trying to learn about linker scripts and starting files. I have written a small linker(ld file) and start up…
When trying to disassemble every instruction of a program as this SO answer suggests, I found out that gdb will never finish processing after stepping instruction into gettimeofday. Here is a minimal reproducible example: In main.c: #include <stdio.h> #include <stdlib.h>…
I am currently learning about the stack layout of frames on x86 using GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1). I ran into some behaviour that I cannot explain myself when playing around with IEEE754 double precision values. Currently I have the following…
I have a function that I query my database: void update_layout_database() char query[255]; MYSQL_ROW row; float wd,ht; sprintf(query,"SELECT name,wd,ht FROM pagelayouts WHERE drawing=%s AND handle=%ld;",drawing_number,layoutID); mysql_query(sqlconnect,query); MYSQL_RES *result = mysql_store_result(sqlconnect); row=mysql_fetch_row(result); if(row!=NULL){ if(atof(row[1])==0 || atof(row[2])==0 || !strcmp(row[0],"Model")){ wd=Extents[2]-Extents[0]; ht=Extents[3]-Extents[1]; sprintf(query,"UPDATE…
Could not load source './csu/../csu/libc-start.c': 'SourceRequest' not supported.. Here's my basic c code. I'm trying to set a breakpoint on _start. And see step by step where it goes on inside the _start func. But it shows that error message.…
My environment: Linux My-PC 5.15.90.1-microsoft-standard-WSL2 x86_64 x86_64 x86_64 GNU/Linux Distributor ID: Ubuntu Description: Ubuntu 22.04.1 LTS GDB-multiarch version $ gdb-multiarch -v GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1 Selected part of Makefile (Many things are ignored): AS =arm-linux-gnueabihf-as LD =arm-linux-gnueabihf-ld NM =arm-linux-gnueabihf-nm…
The following error occurred while attempting to use gdb to debug errors in Apache Age. The postgres server was started using pg_ctl and a connection to a database was established using psql. The running process ID (pid) of psql was…
I have a C file, I compiled with -g option and saved the debug symbol to a different file and stripped the executable. When I try to debug this executable with set debug-file-directory /root/test, I am not able to set…
Environment: Using Visual Studio Code with the Standard Microsoft C++ Debugging Extension. Using gdb as the underlying debugger. For example: on the code below a step in on the commented line will jump to the standard string header. Is there…
I'm assembling an x86-64 program on Ubuntu with NASM: nasm -f elf64 -g -F dwarf -o foo.o foo.asm ld -o foo foo.o Source: section .text global _start _start: mov rax, 60 ;SYS_exit mov rdi, 0 ;EXIT_SUCCESS syscall Debugging the program…