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877ea4f8d8
The x86 CPP definition used `gcc -E -x c` without `-P`, unlike every
other arch's Toolchain.defs (arm, risc-v, avr, mips, misoc, or1k, z16,
z80 all pass `-E -P -x c`). Without `-P`, cpp emits GNU linemarker
lines (e.g. `# 0 "file"`) into its preprocessed output.
boards/Board.mk's PREPROCESS macro runs RCSRCS init.rc files through
$(CPP) before feeding them to apps/system/nxinit's parser. The parser
(apps/system/nxinit/parser.c) matches each line against known section
keywords ("on", "service", ...) with strncmp(); a leading linemarker
line does not match any keyword and the parser returns -EINVAL, so
any board that preprocesses an nxinit init.rc under x86 fails to
parse it at boot.
Reproduced independently on the host toolchain: `gcc -E -x c` on a
minimal init.rc emits `# 0 "file"` lines; `gcc -E -P -x c` on the
same input produces clean `service`/`on` lines only.
Assisted-by: Claude:claude-sonnet-5
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
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|---|---|---|
| .. | ||
| arm | ||
| arm64 | ||
| avr | ||
| ceva | ||
| dummy | ||
| hc | ||
| mips | ||
| misoc | ||
| or1k | ||
| renesas | ||
| risc-v | ||
| sim | ||
| sparc | ||
| tricore | ||
| x86 | ||
| x86_64 | ||
| xtensa | ||
| z16 | ||
| z80 | ||
| CMakeLists.txt | ||
| Kconfig | ||