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DWARF 1 is very different than DWARF 2+ (see the commentary in https://gcc.gnu.org/onlinedocs/gcc/Debugging-Options.html#index-gdwarf) and LLVM does not really seem to support DWARF 1 as Clang does not offer a `-gdwarf-1` flag and `llc` will just generate DWARF 2 with the version set to 1: https://godbolt.org/z/s85d87n3a. Since this isn't actually supported (and it's not clear it would be useful anyway), report that DWARF 1 is not supported if it is requested. Also add a help message to the error saying which versions are supported.
39 lines
1009 B
Rust
39 lines
1009 B
Rust
// This test verifies the expected behavior of various options passed to
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// `-Zdwarf-version`: 2 - 5 (valid) with all other options being invalid.
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//@ revisions: zero one two three four five six
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//@[zero] compile-flags: -Zdwarf-version=0
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//@[zero] error-pattern: requested DWARF version 0 is not supported
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//@[one] compile-flags: -Zdwarf-version=1
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//@[one] error-pattern: requested DWARF version 1 is not supported
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//@[two] compile-flags: -Zdwarf-version=2
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//@[two] check-pass
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//@[three] compile-flags: -Zdwarf-version=3
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//@[three] check-pass
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//@[four] compile-flags: -Zdwarf-version=4
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//@[four] check-pass
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//@[five] compile-flags: -Zdwarf-version=5
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//@[five] check-pass
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//@[six] compile-flags: -Zdwarf-version=6
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//@[six] error-pattern: requested DWARF version 6 is not supported
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//@ compile-flags: -g --target x86_64-unknown-linux-gnu --crate-type cdylib
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//@ needs-llvm-components: x86
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#![feature(no_core, lang_items)]
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#![no_core]
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#![no_std]
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#[lang = "sized"]
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pub trait Sized {}
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pub fn foo() {}
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