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Yao Qi
32ca315312
Don't fetch command line options without semi-hosting
Nowadays, the code fetching command line options via semi-hosting are unconditionally pulled in, so that the semi-hosting code is still there even I compile with option --specs=nosys.specs. gdb ./aarch64-none-elf/libgloss/aarch64/crt0.o (gdb) disassemble _start 0x0000000000000050 <+80>: ldr x1, 0x128 <_cpu_init_hook+48> 0x0000000000000054 <+84>: mov w0, #0x15 0x0000000000000058 <+88>: hlt #0xf000 This patch fixes this problem by wrapping the code by ARM_RDI_MONITOR. When semi-hosting is not used, set command line options to NULL.
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