Check linking when testing if compiler flags are supported #1322
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thomcc
approved these changes
Dec 17, 2024
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Can we get this published as a patch release, or are there plans around when to cut the next release? Asking since this currently blocks rust-lang/rust#134419, which in turn blocks rust-lang/rust#133794 |
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cc will create one release PR every Saturday, and then I can merge and release it. I could release this early if it is urgent |
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Cool. I did not know you had that weekly cadence. I think it would be nice if we can make the bump in |
Merged
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Given that it's a bug affecting rustc and might affect rustc's next release, I will cut a release now to ensure you'd have that in. |
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cc @clubby789 @faern new patch release containing the fix has released |
brainhoard-github
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Jan 22, 2025
Although rust differs between compiling (--> 'rust-cc' wrapper) and linking (--> 'rust-ccld' wrapper), some core crates are using only the 'rust-cc' wrapper to check for available compiler options [1] and libraries [2]. Not having LDFLAGS can break the build in subtle ways. E.g. 'cargo-native' can fail to build with | = note: .../hosttools/ld: .../liblibz_sys-....rlib(deflate.o): | relocation R_X86_64_32S against hidden symbol `_length_code' can not be used when making a PIE object because it does not find '-lz' (added by "DEPENDS = zlib") and builds a static libz.a with missing PIC flags. Add LDFLAGS to the 'build-rust-cc' wrapper as it is done already for the target one. [1] rust-lang/cc-rs#1322 [2] https://github.com/rust-lang/libz-sys/blob/12a32798c6bd18986cb5cd603359b03c96f0eb4c/build.rs#L228-L234 (From OE-Core rev: caf9dc27e3af8b60763eec5538de99332018422c) Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
brainhoard-github
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Jan 23, 2025
Although rust differs between compiling (--> 'rust-cc' wrapper) and linking (--> 'rust-ccld' wrapper), some core crates are using only the 'rust-cc' wrapper to check for available compiler options [1] and libraries [2]. Not having LDFLAGS can break the build in subtle ways. E.g. 'cargo-native' can fail to build with | = note: .../hosttools/ld: .../liblibz_sys-....rlib(deflate.o): | relocation R_X86_64_32S against hidden symbol `_length_code' can not be used when making a PIE object because it does not find '-lz' (added by "DEPENDS = zlib") and builds a static libz.a with missing PIC flags. Add LDFLAGS to the 'build-rust-cc' wrapper as it is done already for the target one. [1] rust-lang/cc-rs#1322 [2] https://github.com/rust-lang/libz-sys/blob/12a32798c6bd18986cb5cd603359b03c96f0eb4c/build.rs#L228-L234 (From OE-Core rev: caf9dc27e3af8b60763eec5538de99332018422c) Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
halstead
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Jan 23, 2025
Although rust differs between compiling (--> 'rust-cc' wrapper) and linking (--> 'rust-ccld' wrapper), some core crates are using only the 'rust-cc' wrapper to check for available compiler options [1] and libraries [2]. Not having LDFLAGS can break the build in subtle ways. E.g. 'cargo-native' can fail to build with | = note: .../hosttools/ld: .../liblibz_sys-....rlib(deflate.o): | relocation R_X86_64_32S against hidden symbol `_length_code' can not be used when making a PIE object because it does not find '-lz' (added by "DEPENDS = zlib") and builds a static libz.a with missing PIC flags. Add LDFLAGS to the 'build-rust-cc' wrapper as it is done already for the target one. [1] rust-lang/cc-rs#1322 [2] https://github.com/rust-lang/libz-sys/blob/12a32798c6bd18986cb5cd603359b03c96f0eb4c/build.rs#L228-L234 (From OE-Core rev: 49b37575b548f0ab082c700f91fdd856740dc829) Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Signed-off-by: Ross Burton <ross.burton@arm.com>
halstead
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Jan 23, 2025
Although rust differs between compiling (--> 'rust-cc' wrapper) and linking (--> 'rust-ccld' wrapper), some core crates are using only the 'rust-cc' wrapper to check for available compiler options [1] and libraries [2]. Not having LDFLAGS can break the build in subtle ways. E.g. 'cargo-native' can fail to build with | = note: .../hosttools/ld: .../liblibz_sys-....rlib(deflate.o): | relocation R_X86_64_32S against hidden symbol `_length_code' can not be used when making a PIE object because it does not find '-lz' (added by "DEPENDS = zlib") and builds a static libz.a with missing PIC flags. Add LDFLAGS to the 'build-rust-cc' wrapper as it is done already for the target one. [1] rust-lang/cc-rs#1322 [2] https://github.com/rust-lang/libz-sys/blob/12a32798c6bd18986cb5cd603359b03c96f0eb4c/build.rs#L228-L234 Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Signed-off-by: Ross Burton <ross.burton@arm.com>
daregit
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Jan 23, 2025
Although rust differs between compiling (--> 'rust-cc' wrapper) and linking (--> 'rust-ccld' wrapper), some core crates are using only the 'rust-cc' wrapper to check for available compiler options [1] and libraries [2]. Not having LDFLAGS can break the build in subtle ways. E.g. 'cargo-native' can fail to build with | = note: .../hosttools/ld: .../liblibz_sys-....rlib(deflate.o): | relocation R_X86_64_32S against hidden symbol `_length_code' can not be used when making a PIE object because it does not find '-lz' (added by "DEPENDS = zlib") and builds a static libz.a with missing PIC flags. Add LDFLAGS to the 'build-rust-cc' wrapper as it is done already for the target one. [1] rust-lang/cc-rs#1322 [2] https://github.com/rust-lang/libz-sys/blob/12a32798c6bd18986cb5cd603359b03c96f0eb4c/build.rs#L228-L234 (From OE-Core rev: 49b37575b548f0ab082c700f91fdd856740dc829) Signed-off-by: Enrico Scholz <enrico.scholzsigma-chemnitz.de> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briandbootlin.com> Signed-off-by: Ross Burton <ross.burtonarm.com>
daregit
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Jan 25, 2025
Although rust differs between compiling (--> 'rust-cc' wrapper) and linking (--> 'rust-ccld' wrapper), some core crates are using only the 'rust-cc' wrapper to check for available compiler options [1] and libraries [2]. Not having LDFLAGS can break the build in subtle ways. E.g. 'cargo-native' can fail to build with | = note: .../hosttools/ld: .../liblibz_sys-....rlib(deflate.o): | relocation R_X86_64_32S against hidden symbol `_length_code' can not be used when making a PIE object because it does not find '-lz' (added by "DEPENDS = zlib") and builds a static libz.a with missing PIC flags. Add LDFLAGS to the 'build-rust-cc' wrapper as it is done already for the target one. [1] rust-lang/cc-rs#1322 [2] https://github.com/rust-lang/libz-sys/blob/12a32798c6bd18986cb5cd603359b03c96f0eb4c/build.rs#L228-L234 (From OE-Core rev: 49b37575b548f0ab082c700f91fdd856740dc829) Signed-off-by: Enrico Scholz <enrico.scholzsigma-chemnitz.de> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briandbootlin.com> Signed-off-by: Ross Burton <ross.burtonarm.com>
doanac
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Jan 31, 2025
Although rust differs between compiling (--> 'rust-cc' wrapper) and linking (--> 'rust-ccld' wrapper), some core crates are using only the 'rust-cc' wrapper to check for available compiler options [1] and libraries [2]. Not having LDFLAGS can break the build in subtle ways. E.g. 'cargo-native' can fail to build with | = note: .../hosttools/ld: .../liblibz_sys-....rlib(deflate.o): | relocation R_X86_64_32S against hidden symbol `_length_code' can not be used when making a PIE object because it does not find '-lz' (added by "DEPENDS = zlib") and builds a static libz.a with missing PIC flags. Add LDFLAGS to the 'build-rust-cc' wrapper as it is done already for the target one. [1] rust-lang/cc-rs#1322 [2] https://github.com/rust-lang/libz-sys/blob/12a32798c6bd18986cb5cd603359b03c96f0eb4c/build.rs#L228-L234 Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Signed-off-by: Ross Burton <ross.burton@arm.com> (adapted from oe-core commit 49b37575b548f0ab082c700f91fdd856740dc829) Signed-off-by: Scott Murray <scott.murray@konsulko.com>
daregit
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Feb 5, 2025
Although rust differs between compiling (--> 'rust-cc' wrapper) and linking (--> 'rust-ccld' wrapper), some core crates are using only the 'rust-cc' wrapper to check for available compiler options [1] and libraries [2]. Not having LDFLAGS can break the build in subtle ways. E.g. 'cargo-native' can fail to build with | = note: .../hosttools/ld: .../liblibz_sys-....rlib(deflate.o): | relocation R_X86_64_32S against hidden symbol `_length_code' can not be used when making a PIE object because it does not find '-lz' (added by "DEPENDS = zlib") and builds a static libz.a with missing PIC flags. Add LDFLAGS to the 'build-rust-cc' wrapper as it is done already for the target one. [1] rust-lang/cc-rs#1322 [2] https://github.com/rust-lang/libz-sys/blob/12a32798c6bd18986cb5cd603359b03c96f0eb4c/build.rs#L228-L234 (From OE-Core rev: 49b37575b548f0ab082c700f91fdd856740dc829) Signed-off-by: Enrico Scholz <enrico.scholzsigma-chemnitz.de> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briandbootlin.com> Signed-off-by: Ross Burton <ross.burtonarm.com>
doanac
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that referenced
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Feb 13, 2025
Although rust differs between compiling (--> 'rust-cc' wrapper) and linking (--> 'rust-ccld' wrapper), some core crates are using only the 'rust-cc' wrapper to check for available compiler options [1] and libraries [2]. Not having LDFLAGS can break the build in subtle ways. E.g. 'cargo-native' can fail to build with | = note: .../hosttools/ld: .../liblibz_sys-....rlib(deflate.o): | relocation R_X86_64_32S against hidden symbol `_length_code' can not be used when making a PIE object because it does not find '-lz' (added by "DEPENDS = zlib") and builds a static libz.a with missing PIC flags. Add LDFLAGS to the 'build-rust-cc' wrapper as it is done already for the target one. [1] rust-lang/cc-rs#1322 [2] https://github.com/rust-lang/libz-sys/blob/12a32798c6bd18986cb5cd603359b03c96f0eb4c/build.rs#L228-L234 Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Signed-off-by: Ross Burton <ross.burton@arm.com>
bors
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Feb 15, 2025
…<try> Bump bootstrap cc to 1.2.14 and cmake to 0.1.54 ## Summary Bump bootstrap's `cc` and `cmake` deps: 1. To make it easier to add new/unofficial targets. In particular, `cc` v1.2.4+ allows using env vars to pass target parameters to the `cc` crate. This was previously attempted in rust-lang#134344 but ran into macos-cross-to-iOS problems with `cmake` (and also rust-lang#136440, rust-lang#136720). See also discussions in rust-lang/cc-rs#1317. 2. Fix some flag inheritance warnings. Fixes rust-lang#136338. ## `cc` changelogs between `1.2.0` and `1.2.14` > ## [1.2.14](rust-lang/cc-rs@cc-v1.2.13...cc-v1.2.14) - 2025-02-14 > > ### Other > > - Regenerate target info ([rust-lang#1398](rust-lang/cc-rs#1398)) > - Add support for setting `-gdwarf-{version}` based on RUSTFLAGS ([rust-lang#1395](rust-lang/cc-rs#1395)) > - Add support for alternative network stack io-sock on QNX 7.1 aarch64 and x86_64 ([rust-lang#1312](rust-lang/cc-rs#1312)) > > ## [1.2.13](rust-lang/cc-rs@cc-v1.2.12...cc-v1.2.13) - 2025-02-08 > > ### Other > > - Fix cross-compiling for Apple platforms ([rust-lang#1389](rust-lang/cc-rs#1389)) > > ## [1.2.12](rust-lang/cc-rs@cc-v1.2.11...cc-v1.2.12) - 2025-02-04 > > ### Other > > - Split impl Build ([rust-lang#1382](rust-lang/cc-rs#1382)) > - Don't specify both `-target` and `-mtargetos=` on Apple targets ([rust-lang#1384](rust-lang/cc-rs#1384)) > > ## [1.2.11](rust-lang/cc-rs@cc-v1.2.10...cc-v1.2.11) - 2025-01-31 > > ### Other > > - Fix more flag inheritance ([rust-lang#1380](rust-lang/cc-rs#1380)) > - Include wrapper args. in `stdout` family heuristics to restore classifying `clang --driver-mode=cl` as `Msvc { clang_cl: true }` ([rust-lang#1378](rust-lang/cc-rs#1378)) > - Constrain `-Clto` and `-Cembed-bitcode` flag inheritance to be `clang`-only ([rust-lang#1379](rust-lang/cc-rs#1379)) > - Pass deployment target with `-m*-version-min=` ([rust-lang#1339](rust-lang/cc-rs#1339)) > - Regenerate target info ([rust-lang#1376](rust-lang/cc-rs#1376)) > > ## [1.2.10](rust-lang/cc-rs@cc-v1.2.9...cc-v1.2.10) - 2025-01-17 > > ### Other > > - Fix CC_FORCE_DISABLE=0 evaluating to true ([rust-lang#1371](rust-lang/cc-rs#1371)) > - Regenerate target info ([rust-lang#1369](rust-lang/cc-rs#1369)) > - Make hidden lifetimes explicit. ([rust-lang#1366](rust-lang/cc-rs#1366)) > > ## [1.2.9](rust-lang/cc-rs@cc-v1.2.8...cc-v1.2.9) - 2025-01-12 > > ### Other > > - Don't pass inherited PGO flags to GNU compilers (rust-lang#1363) > - Adjusted zig cc judgment and avoided zigbuild errors([rust-lang#1360](rust-lang/cc-rs#1360)) ([rust-lang#1361](rust-lang/cc-rs#1361)) > - Fix compilation on macOS using clang and fix compilation using zig-cc ([rust-lang#1364](rust-lang/cc-rs#1364)) > > ## [1.2.8](rust-lang/cc-rs@cc-v1.2.7...cc-v1.2.8) - 2025-01-11 > > ### Other > > - Add `is_like_clang_cl()` getter (rust-lang#1357) > - Fix clippy error in lib.rs ([rust-lang#1356](rust-lang/cc-rs#1356)) > - Regenerate target info ([rust-lang#1352](rust-lang/cc-rs#1352)) > - Fix compiler family detection issue with clang-cl on macOS ([rust-lang#1328](rust-lang/cc-rs#1328)) > - Update `windows-bindgen` dependency ([rust-lang#1347](rust-lang/cc-rs#1347)) > - Fix clippy warnings ([rust-lang#1346](rust-lang/cc-rs#1346)) > > ## [1.2.7](rust-lang/cc-rs@cc-v1.2.6...cc-v1.2.7) - 2025-01-03 > > ### Other > > - Regenerate target info ([rust-lang#1342](rust-lang/cc-rs#1342)) > - Document new supported architecture names in windows::find > - Make is_flag_supported_inner take an &Tool ([rust-lang#1337](rust-lang/cc-rs#1337)) > - Fix is_flag_supported on msvc ([rust-lang#1336](rust-lang/cc-rs#1336)) > - Allow using Visual Studio target names in `find_tool` ([rust-lang#1335](rust-lang/cc-rs#1335)) > > ## [1.2.6](rust-lang/cc-rs@cc-v1.2.5...cc-v1.2.6) - 2024-12-27 > > ### Other > > - Don't inherit the `/Oy` flag for 64-bit targets ([rust-lang#1330](rust-lang/cc-rs#1330)) > > ## [1.2.5](rust-lang/cc-rs@cc-v1.2.4...cc-v1.2.5) - 2024-12-19 > > ### Other > > - Check linking when testing if compiler flags are supported ([rust-lang#1322](rust-lang/cc-rs#1322)) > > ## [1.2.4](rust-lang/cc-rs@cc-v1.2.3...cc-v1.2.4) - 2024-12-13 > > ### Other > > - Add support for C/C++ compiler for Neutrino QNX: `qcc` ([rust-lang#1319](rust-lang/cc-rs#1319)) > - use -maix64 instead of -m64 ([rust-lang#1307](rust-lang/cc-rs#1307)) > > ## [1.2.3](rust-lang/cc-rs@cc-v1.2.2...cc-v1.2.3) - 2024-12-06 > > ### Other > > - Improve detection of environment when compiling from msbuild or msvc ([rust-lang#1310](rust-lang/cc-rs#1310)) > - Better error message when failing on unknown targets ([rust-lang#1313](rust-lang/cc-rs#1313)) > - Optimize RustcCodegenFlags ([rust-lang#1305](rust-lang/cc-rs#1305)) > > ## [1.2.2](rust-lang/cc-rs@cc-v1.2.1...cc-v1.2.2) - 2024-11-29 > > ### Other > > - Inherit flags from rustc ([rust-lang#1279](rust-lang/cc-rs#1279)) > - Add support for using sccache wrapper with cuda/nvcc ([rust-lang#1304](rust-lang/cc-rs#1304)) > - Fix msvc stdout not shown on error ([rust-lang#1303](rust-lang/cc-rs#1303)) > - Regenerate target info ([rust-lang#1301](rust-lang/cc-rs#1301)) > - Fix compilation of C++ code for armv7-unknown-linux-gnueabihf ([rust-lang#1298](rust-lang/cc-rs#1298)) > - Fetch target info from Cargo even if `Build::target` is manually set ([rust-lang#1299](rust-lang/cc-rs#1299)) > - Fix two files with different extensions having the same object name ([rust-lang#1295](rust-lang/cc-rs#1295)) > - Allow disabling cc's ability to compile via env var CC_FORCE_DISABLE ([rust-lang#1292](rust-lang/cc-rs#1292)) > - Regenerate target info ([rust-lang#1293](rust-lang/cc-rs#1293)) > > ## [1.2.1](rust-lang/cc-rs@cc-v1.2.0...cc-v1.2.1) - 2024-11-14 > > ### Other > > - When invoking `cl -?`, set stdin to null ([rust-lang#1288](rust-lang/cc-rs#1288)) ## `cmake` changelogs `0.1.51` to `0.1.54` > ## [0.1.54](rust-lang/cmake-rs@v0.1.53...v0.1.54) - 2025-02-10 > > ### Other > > - Remove workaround for broken `cc-rs` versions ([rust-lang#235](rust-lang/cmake-rs#235)) > - Be more precise in the description of `register_dep` ([rust-lang#238](rust-lang/cmake-rs#238)) > > ## [0.1.53](rust-lang/cmake-rs@v0.1.52...v0.1.53) - 2025-01-27 > > ### Other > > - Disable broken Make jobserver support on OSX to fix parallel builds ([rust-lang#229](rust-lang/cmake-rs#229)) > > ## [0.1.52](rust-lang/cmake-rs@v0.1.51...v0.1.52) - 2024-11-25 > > ### Other > > - Expose cc-rs no_default_flags for hassle-free cross-compilation ([rust-lang#225](rust-lang/cmake-rs#225)) > - Add a `success` job to CI > - Change `--build` to use an absolute path > - Merge pull request [rust-lang#195](rust-lang/cmake-rs#195) from meowtec/feat/improve-fail-hint > - Improve hint for cmake not installed in Linux (code 127) > > ## [0.1.51](rust-lang/cmake-rs@v0.1.50...v0.1.51) - 2024-08-15 > > ### Added > > - Add JOM generator support ([rust-lang#183](rust-lang/cmake-rs#183)) > - Improve visionOS support ([rust-lang#209](rust-lang/cmake-rs#209)) > - Use `Generic` for bare-metal systems ([rust-lang#187](rust-lang/cmake-rs#187)) > > ### Fixed > > - Fix cross compilation on android armv7 and x86 ([rust-lang#186](rust-lang/cmake-rs#186)) try-job: dist-apple-various
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Fixes #1321
Several of the inherited flags affect the linker, so we do need to go all the way to linking to verify them