743ec85b28
- Update to 1.11 + Add support for cdylib crate types - Remove merged patches: * 0001-Fix-misleading-intentation-errors-on-gcc-6.0.patch * 0002-Fix-GCC-6-misleading-indentation-error-in-hoedown.patch OBS-URL: https://build.opensuse.org/request/show/437035 OBS-URL: https://build.opensuse.org/package/show/devel:languages:rust/rust?expand=0&rev=5
36 lines
1.6 KiB
Diff
36 lines
1.6 KiB
Diff
Description: Set DT_SONAME when building dylibs
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In Rust, library filenames include a version-specific hash to help
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the run-time linker find the correct version. Unlike in C/C++, the
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compiler looks for all libraries matching a glob that ignores the
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hash and reads embedded metadata to work out versions, etc.
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.
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The upshot is that there is no need for the usual "libfoo.so ->
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libfoo-1.2.3.so" symlink common with C/C++ when building with Rust,
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and no need to communicate an alternate filename to use at run-time
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vs compile time. If linking to a Rust dylib from C/C++ however, a
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"libfoo.so -> libfoo-$hash.so" symlink may well be useful and in
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this case DT_SONAME=libfoo-$hash.so would be required. More
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mundanely, various tools (eg: dpkg-shlibdeps) complain if they don't
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find DT_SONAME on shared libraries in public directories.
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.
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This patch passes -Wl,-soname=$outfile when building dylibs (and
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using a GNU linker).
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Author: Angus Lees <gus@debian.org>
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Forwarded: no
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--- a/src/librustc_trans/back/link.rs
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+++ b/src/librustc_trans/back/link.rs
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@@ -840,6 +840,12 @@
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cmd.args(&rpath::get_rpath_flags(&mut rpath_config));
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}
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+ if (crate_type == config::CrateTypeDylib || crate_type == config::CrateTypeCdylib) && t.options.linker_is_gnu {
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+ let filename = String::from(out_filename.file_name().unwrap().to_str().unwrap());
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+ let soname = [String::from("-Wl,-soname=") + &filename];
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+ cmd.args(&soname);
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+ }
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+
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// Finally add all the linker arguments provided on the command line along
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// with any #[link_args] attributes found inside the crate
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if let Some(ref args) = sess.opts.cg.link_args {
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