6c9bb96bca
The latest version allows overriding the default CFLAGS. By default,
they're `-O2 -DNDEBUG`, thus not including DWARF debug information. This
commit changes this to include the `-g` flag.
Apart from an improved debug experience, this lets -size=full attribute
code to wasi-libc.
Before:
$ tinygo build -o test.wasm -size=full ./testdata/alias.go
code rodata data bss | flash ram | package
------------------------------- | --------------- | -------
1780 0 188 130733 | 1968 130921 | (unknown)
84 0 0 0 | 84 0 | internal/task
281 0 0 0 | 281 0 | main
2374 0 4 147 | 2378 151 | runtime
------------------------------- | --------------- | -------
4519 0 192 130880 | 4711 131072 | total
After:
$ tinygo build -o test.wasm -size=full ./testdata/alias.go
code rodata data bss | flash ram | package
------------------------------- | --------------- | -------
40 0 188 130733 | 228 130921 | (unknown)
1740 0 0 0 | 1740 0 | C wasi-libc
84 0 0 0 | 84 0 | internal/task
281 0 0 0 | 281 0 | main
2374 0 4 147 | 2378 151 | runtime
------------------------------- | --------------- | -------
4519 0 192 130880 | 4711 131072 | total
The main difference here is the `(unknown)` code, which turns out to be
mostly wasi-libc in this trivial example.
|
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|---|---|---|
| .. | ||
| avr@6624554c02 | ||
| CMSIS@9fe411cef1 | ||
| cmsis-svd@df75ff974c | ||
| compiler-rt@5bc79797e1 | ||
| musl@040c1d16b4 | ||
| nrfx@d779b49fc5 | ||
| picolibc@f68b8204f7 | ||
| stm32-svd@3a0b0829b7 | ||
| wasi-libc@ad5133410f | ||
| picolibc-stdio.c | ||