add regression test for issue #68794
This is a minimal regression test for the issue #68794: "TEXTREL in
i686", which was fixed with e86019c4a0
.
The test links a minimal rust static library into a shared library, and
checks that the linker didn't have to add the TEXTREL flag.
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# Regression test for issue #68794
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#
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# Verify that no text relocations are accidentally introduced by linking a
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# minimal rust staticlib.
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#
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# The test links a rust static library into a shared library, and checks that
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# the linker doesn't have to flag the resulting file as containing TEXTRELs.
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-include ../tools.mk
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# only-linux
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all:
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$(RUSTC) foo.rs
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$(CC) bar.c $(call STATICLIB,foo) -fPIC -shared -o $(call DYLIB,bar) \
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$(EXTRACFLAGS) $(EXTRACXXFLAGS)
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readelf -d $(call DYLIB,bar) | grep TEXTREL; test $$? -eq 1
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void foo();
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int main() {
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foo();
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return 0;
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}
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#![crate_type = "staticlib"]
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#[no_mangle]
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pub extern "C" fn foo(x: u32) {
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// using the println! makes it so that enough code from the standard
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// library is included (see issue #68794)
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println!("foo: {}", x);
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}
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