How to fix “pointer ‘old’ may be used after ‘realloc’ [-Wuse-after-free]” warning in C?
I’m encountering a warning in my C code while trying to reallocate memory using realloc. The specific warning is:
can I overwrite the malloc called by library functions?
my code (main.c):
Build gcc raise err: Makefile:1087: recipe for target ‘all’ failed make: *** [all] Error 2
I use following code
Build gcc raise err: Makefile:1087: recipe for target ‘all’ failed make: *** [all] Error 2
I use following code
build cpp code with std::backtrace raise err “undefined reference to `__glibcxx_backtrace_create_state”
I still wanna use gcc std::stacktrace, so I build my own gcc with ./configure --enable-libstdcxx-backtrace=yes
Get the virtual address of a specific instruction in Linux Kernel
I recently worked on a job that required me to get the address of a particular instruction in a code segment of Linux Kernel, , I tried to do this with the Labels as Values provided by gcc. like this: