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Add "--xip" option for wamrc (#2336)

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Add shorthand "--xip" option for wamrc, which is equal to
"--enalbe-indirect-mode --disable-llvm-intrinsics"
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Huang Qi 2023-07-04 12:03:40 +08:00 committed by GitHub
parent 6ed4c9c908
commit df98d9fb4a
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4
doc/xip.md
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@ -7,8 +7,12 @@ Some IoT devices may require to run the AOT file from flash or ROM which is read
The XIP file is an AOT file without (or with few) relocations to patch the AOT code (or text section). Developer can use the option `--enable-indirect-mode --disable-llvm-intrinsics` for wamrc to generate the AOT file, e.g.:
```bash
wamrc --enable-indirect-mode --disable-llvm-intrinsics -o <aot_file> <wasm_file>
or
wamrc --xip -o <aot_file> <wasm_file>
```
Note: --xip is a short option for --enable-indirect-mode --disable-llvm-intrinsics
## Known issues
There may be some relocations to the ".rodata" like sections which require to patch the AOT code. More work will be done to resolve it in the future.

5
wamr-compiler/main.c
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@ -65,6 +65,7 @@ print_help()
printf(" --enable-dump-call-stack Enable stack trace feature\n");
printf(" --enable-perf-profiling Enable function performance profiling\n");
printf(" --enable-memory-profiling Enable memory usage profiling\n");
printf(" --xip A shorthand of --enalbe-indirect-mode --disable-llvm-intrinsics\n");
printf(" --enable-indirect-mode Enalbe call function through symbol table but not direct call\n");
printf(" --disable-llvm-intrinsics Disable the LLVM built-in intrinsics\n");
printf(" --disable-llvm-lto Disable the LLVM link time optimization\n");
@ -325,6 +326,10 @@ main(int argc, char *argv[])
else if (!strcmp(argv[0], "--enable-memory-profiling")) {
option.enable_stack_estimation = true;
}
else if (!strcmp(argv[0], "--xip")) {
option.is_indirect_mode = true;
option.disable_llvm_intrinsics = true;
}
else if (!strcmp(argv[0], "--enable-indirect-mode")) {
option.is_indirect_mode = true;
}