Commit Graph

8 Commits

Author SHA1 Message Date
Hans Wennborg ec841cf36c [cmake] Strip quotes in try_compile_only
After r372209, the compile command can end up including an argument with
quotes in it, e.g.

  -fprofile-instr-use="/foo/bar.profdata"

when invoking the compiler with execute_process, the compiler ends up
getting that argument with quotes and all, and fails to open the file.

This all seems horribly broken, but one way of working around it is to
simply strip the quotes from the string here. If they were there to
protect a path that's got spaces in it, that wasn't going to work
anyway because the string is later split by spaces.

llvm-svn: 372312
2019-09-19 11:28:32 +00:00
Dan Liew 0bb9b5b481 [CMake] Fix broken uses of `try_compile_only()` and improve the function.
Summary:
There were existing calls to `try_compile_only()` with arguments not
prefixed by `SOURCE` or `FLAGS`. These were silently being ignored.
It looks like the `SOURCE` and `FLAGS` arguments were first introduced
in r278454.

One implication of this is that for a builtins only build for Darwin
(see `darwin_test_archs()`) it would mean we weren't actually passing
`-arch <arch>` to the compiler). This would result in compiler-rt
claiming all supplied architectures could be targetted provided
the compiler could build for Clang's default architecture.

This patch fixes this in several ways.

* Fixes all incorrect calls to `try_compile_only()`.
* Adds code to `try_compile_only()` to check for unhandled arguments
  and raises a fatal error if this occurs. This should stop any
  incorrect calls in the future.
* Improve the documentation on `try_compile_only()` which seemed
  completely wrong.

rdar://problem/48928526

Reviewers: beanz, fjricci, dsanders, kubamracek, yln, dcoughlin

Subscribers: mgorny, jdoerfert, #sanitizers, llvm-commits

Tags: #llvm, #sanitizers

Differential Revision: https://reviews.llvm.org/D59429

llvm-svn: 356295
2019-03-15 20:14:46 +00:00
Reid Kleckner dd16896324 Really fix warnings about passing -std=gnu99 to MSVC
llvm-svn: 280958
2016-09-08 16:25:34 +00:00
Francis Ricci 341b1fea7c [builtins] Make sure builtin compile tests respect CMAKE_C_COMPILER_TARGET
Summary:
Since we generate the compiler invocation on our own, we need to
manually add -target if CMAKE_C_COMPILER_TARGET has been specified.

Reviewers: compnerd, beanz

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23823

llvm-svn: 279747
2016-08-25 16:15:45 +00:00
Chris Bieneman 98ee3de514 [CMake] If the compiler supports _Atomic include atomic.c in builtins libraries
This fixes a long-standing TODO by implementing a compiler check for supporting the _Atomic keyword. If the _Atomic keyword is supported by the compiler we should include it in the builtin library sources.

llvm-svn: 278454
2016-08-12 01:29:26 +00:00
Chris Bieneman 178cdfbf66 [CMake] Don't trust compiler error code, also check for errors
Summary: rnk reported that MSVC ignores unknown flags and still returns 0. This should cause unknown flags to be an error during the compiler check.

Reviewers: rnk

Subscribers: brad.king, llvm-commits

Differential Revision: https://reviews.llvm.org/D23030

llvm-svn: 277377
2016-08-01 20:18:18 +00:00
Chris Bieneman 1455de2171 [CMake] Cache check results and avoid duplicate checks
This caches the result of builtin_check_c_compiler_flag, and removes a duplicate check for C99 flag support.

llvm-svn: 269230
2016-05-11 20:37:43 +00:00
Chris Bieneman aa3d2c13bf [CMake] NFC. Add support for testing the compiler without testing the linker
Summary:
One of the big limitations we have in the compiler-rt build system today is that we cannot bootstrap building the builtins because you need a fully functional toolchain to pass CMake's tests.

This change adds support for compile only tests.

It is NFC because nothing is using the compile-only tests yet.

I believe this is the last separable part of D16653.

Reviewers: samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D19692

llvm-svn: 268427
2016-05-03 19:48:11 +00:00