GNU Binutils
GNU binutils remain essential for systems work, cross-compilation, ELF inspection, GAS syntax, linker scripts, and architecture bring-up.
GASGNU ldobjdumpreadelfnmarstriplinker scripts
GNU ecosystem
GNU desk for assemblers, linkers, compilers, runtimes, and debuggers
GNU tools are still the daily laboratory for ELF, GAS, ld, GCC, glibc, GDB, cross-compilation, and reproducible low-level experiments.
GNU map
GCC Toolchain
GCC gives another mature model for target descriptions, optimization, runtime libraries, cross compilers, and decades of ABI compatibility work.
DriverGIMPLERTLMachine descriptionslibgcccrt startupCross targets
glibc and Runtime Boundaries
glibc, startup code, dynamic loading, TLS, and syscall wrappers explain what happens between compiled code and Linux runtime behavior.
crt1ld.soPLT/GOTTLSsyscall wrapperspthreadmalloc internals
GNU Debugging Workflow
GDB and GNU tools form a daily lab for stack frames, signals, core dumps, disassembly, register views, and cross-architecture debugging.
GDBcore dumpsremote gdbserverTUIpretty printerssignalswatchpoints
ForgeVM linker lessons
Study GNU ld scripts, symbol resolution, archive scanning, map files, and relocation behavior before inventing ForgeVM linker diagnostics.
Assembly lessons
Use GAS across x86-64, ARM64, and RISC-V for syntax comparisons, object output, directives, and cross-platform examples.
Runtime lessons
Document glibc startup, dynamic loading, TLS, syscall wrappers, and where user code becomes operating-system behavior.