| Summary: | Cross-compiler called through toolchain-wrapper generates bogus error messages | ||
|---|---|---|---|
| Product: | buildroot | Reporter: | jimgeorge |
| Component: | Other | Assignee: | unassigned |
| Status: | RESOLVED MOVED | ||
| Severity: | trivial | CC: | buildroot, yann.morin.1998 |
| Priority: | P5 | ||
| Version: | 2023.02 | ||
| Target Milestone: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Host: | Target: | ||
| Build: | |||
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Cause: Invoking the cross-compiler from the package generated by 'make sdk' with no arguments Expected behavior: Should print arm-linux-cc: fatal error: No input files Observed behavior: Output is: /path/to/buildroot/output/host/lib/gcc/arm-buildroot-linux-gnueabihf/11.3.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: /path/to/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/lib/Scrt1.o: in function `_start': (.text+0x40): undefined reference to `main' collect2: error: ld returned 1 exit status With BR2_DEBUG_WRAPPER set to 2, I get the following extra information: Toolchain wrapper was called with: 'buildroot-ts/buildroot/output/host/bin/arm-linux-cc' Toolchain wrapper executing: '/path/to/buildroot/output/host/bin/arm-linux-cc.br_real' '--sysroot' '/path/to/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot' '-fstack-protector-strong' '-fPIE' '-pie' '-Wl,-z,now' '-Wl,-z,relro' When invoking arm-linux-cc with an example program to compile, behavior is normal. It seems like the 'Wl' options are what trigger the errors from the underlying gcc. Adding this as a 'trivial' bug so that it could either be documented or calling toolchain-wrapper with no arguments is special-cased so other buildroot newbies aren't tripped up by this.