Now, the following code does what it's supposed to do, load calc.exe to memory and execute it, it does that fine. I've stitched together this code to show Creat
Here is a question about the details happening during system call. However, one thing surprises me that the TSS maintains different stacks for different privili
The code below is wrong for at least 2 reasons. I'll be rewriting this in assembly so I'll need the solution to be only linux system calls. What I'd like to do
I am trying to build a pintool that should be able to instrument an open() syscall that targets a specific file/directory and replace the file path argument wit
If I compile the following program: $ cat main.cpp && g++ main.cpp #include <time.h> int main() { struct timespec ts; return clock_gettime
I was trying to change the access time of a file, but i didn't get the result i wanted. this is what i tried: struct tm time; time.tm_sec=56; time.tm_mi
I am trying to use the write syscall in order to reproduce the putchar function behavior which prints a single character. My code is as follows, asm_putchar:
I want to add new syscall to freeBSD kernel and I want to change syscalls.master file in /usr/src/sys/kern/syscalls.master. But this file is not existing in th
I want to make two classes: an object and an object_manager, but I'm confused about how they should see/include each other. I've heard that it's forbidden for t
This error stops my kernel make process ld: arch/x86/entry/syscall_64.o:(.rodata+0x1120): undefined reference to `__x64_sys_fd' BTF .btf.vmlinux.bin.o pahol
Learning NASM Assembly, I am trying to make a program that reads two one-digit number inputs. I have two variables declared in the .bss: num1 resb 1 num2 resb
Learning NASM Assembly, I am trying to make a program that reads two one-digit number inputs. I have two variables declared in the .bss: num1 resb 1 num2 resb