yonghong-song added a comment.
We already have `-main-file-name` in cc1.
`clang -cc1 -triple x86_64-unknown-linux-gnu ... -main-file-name main.c ... -o
main.bc -x c /virtual/main.c -faddrsig`
Is this expected?
BTW, we just pass the normal C flags to the driver like
vector<const char *> flags_cstr({"-O0", "-O2", "-emit-llvm", "-I",
dstack.cwd(),
"-D", "__BPF_TRACING__",
"-Wno-deprecated-declarations",
"-Wno-gnu-variable-sized-type-not-at-end",
"-Wno-pragma-once-outside-header",
"-Wno-address-of-packed-member",
"-Wno-unknown-warning-option",
"-fno-color-diagnostics",
"-fno-unwind-tables",
"-fno-asynchronous-unwind-tables",
"-x", "c", "-c", abs_file.c_str()});
flags_cstr.push_back("-g");
flags_cstr.push_back("-gdwarf-5");
flags_cstr.push_back("-gembed-source");
// A few other flags
We call drv.BuildCompilation to get the cc1 flags.
Repository:
rC Clang
https://reviews.llvm.org/D53329
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