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* Pass --package-metadata on distros with supporting linkers (starting

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with Debian trixie and Ubuntu noble).
    The package metadata is constructed from the environment variables
    DEB_BUILD_OS_RELEASE_ID, DEB_SOURCE, DEB_VERSION and DEB_HOST_ARCH.
    Setting NO_PKG_METADATA=1 disables the generation of the package metadata.
This commit is contained in:
Matthias Klose 2024-07-07 16:44:42 +02:00
parent 033208480e
commit 831c781696
3 changed files with 48 additions and 0 deletions
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11
debian/changelog vendored
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@ -1,3 +1,14 @@
llvm-toolchain-18 (1:18.1.8-2~exp3) UNRELEASED; urgency=medium
[ Matthias Klose ]
* Pass --package-metadata on distros with supporting linkers (starting
with Debian trixie and Ubuntu noble).
The package metadata is constructed from the environment variables
DEB_BUILD_OS_RELEASE_ID, DEB_SOURCE, DEB_VERSION and DEB_HOST_ARCH.
Setting NO_PKG_METADATA=1 disables the generation of the package metadata.
-- Matthias Klose <doko@debian.org> Sun, 07 Jul 2024 16:40:35 +0200
llvm-toolchain-18 (1:18.1.8-2~exp2) experimental; urgency=medium
* Change the LLVM_HOST_TRIPLE option from i386-linux-gnu to

36
debian/patches/link-with-package-metadata.diff vendored Normal file
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@ -0,0 +1,36 @@
--- a/clang/lib/Driver/ToolChains/Linux.cpp
+++ b/clang/lib/Driver/ToolChains/Linux.cpp
@@ -287,6 +287,33 @@ Linux::Linux(const Driver &D, const llvm
ExtraOpts.push_back("--build-id");
#endif
+ if (Distro.IsDebian() && Distro >= Distro::DebianTrixie
+ || Distro.IsUbuntu() && Distro >= Distro::UbuntuNoble)
+ {
+ const char *deb_build_os_release_id = getenv ("DEB_BUILD_OS_RELEASE_ID");
+ const char *deb_source = getenv ("DEB_SOURCE");
+ const char *deb_version = getenv ("DEB_VERSION");
+ const char *deb_host_arch = getenv ("DEB_HOST_ARCH");
+ const char *no_pkg_metadata = getenv ("NO_PKG_METADATA");
+
+ if (no_pkg_metadata) {
+ // don't issue --package-metadata option
+ } else if (!deb_build_os_release_id && !deb_source && !deb_version && !deb_host_arch) {
+ // no environment set for package metadata
+ } else if (!(deb_build_os_release_id && deb_source && deb_version && deb_host_arch)) {
+ // incomple environment
+ // FIXME: emit error
+ } else {
+ ExtraOpts.push_back(std::string("--package-metadata={")
+ + "\"type\":\"deb\","
+ + "\"os\":\"" + deb_build_os_release_id + "\","
+ + "\"name\":\"" + deb_source + "\","
+ + "\"version\":\"" + deb_version + "\","
+ + "\"architecture\":\"" + deb_host_arch + "\""
+ + "}");
+ }
+ }
+
// The selection of paths to try here is designed to match the patterns which
// the GCC driver itself uses, as this is part of the GCC-compatible driver.
// This was determined by running GCC in a fake filesystem, creating all

1
debian/patches/series vendored
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@ -153,3 +153,4 @@ libsanitizer-timebits.diff
ubuntu-releases.patch
clang-record-gcc-switches-by-default.patch
rename-libllvm.diff
link-with-package-metadata.diff