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feat(build): add freestanding, lto, strip, panic-abort, and codegen-units support in dcr.toml

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Dexoron
2026-06-16 16:42:56 +08:00
parent 3d596d7280
commit 21932ac94a
18 changed files with 242 additions and 73 deletions
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docs/reference/cross-compilation.mdx
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@@ -37,9 +37,19 @@ target = "aarch64-unknown-linux-gnu"
# Auto: cflags += ["--target=aarch64-unknown-linux-gnu"]
```
## Bare-Metal
## Bare-Metal / Freestanding
For targets containing `none`, `-elf`, `eabi`, or `baremetal`, DCR default flags are disabled (no system include paths, no `-l` libc).
For targets containing `none`, `-elf`, `eabi`, or `baremetal`, DCR automatically:
1. **Disables default flags** — no system include paths, no `-l` libc
2. **Injects `-ffreestanding`** at compile time and `-nostdlib -static` at link time
You can also enable freestanding mode explicitly:
```toml
[build]
freestanding = true
```
```bash
dcr build --target aarch64-none-elf