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From Reset to Control: Disabling Interrupts on ARM Bare Metal
Bare‑metal execution on ARMv7 begins at the reset vector, long before any C environment exists. When a Cortex‑A9 leaves reset under QEMU’s vexpress‑a9 model, th...
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Linker Scripts Explained: Controlling Memory Layout on Bare Metal
The Anatomy of a Minimal Linker Script A linker script has two primary blocks: MEMORY and SECTIONS. ld ENTRY_start MEMORY { RAM rwx : ORIGIN = 0x60000000, LENG...