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Driver test `cross-linux.c` fails when CLANG_DEFAULT_RTLIB is "compiler-rt"
as the it expects a GCC-style `"crtbegin.o"` after `"crti.o"` but instead
receives something akin to this in the frontend invocation:
```
"crt1.o" "crti.o"
"/o/b/llvm/bin/../lib/clang/10.0.0/lib/linux/clang_rt.crtbegin-x86_64.o"
```
This patch adds an override to `cross-linux.c` tests so the expected result
is produced regardless of the compile-time default rtlib, as having tests
fail due to that is fairly confusing. After applying the patch, the test
passes regardless of the CLANG_DEFAULT_RTLIB setting.
Differential Revision: https://reviews.llvm.org/D72236
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I originally requested this to be tested in D25263 but in the end
forgot to make sure that it was done.
Differential Revision: https://reviews.llvm.org/D28289
llvm-svn: 291389
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llvm-svn: 214931
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TargetInfo,DescriptionString, flags, paths lookup, etc. Cover changes with new tests. The author of the patch is Pavel Chupin (@pavel.v.chupin).
The changes enable "hello world" on x32 target (x86_64-*-linux-gnux32). s/isX32/IsX32/ also fixed.
Differential Revision: http://reviews.llvm.org/D4180
llvm-svn: 212725
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This reverts commit r193528 (and fixes).
It broke Chandler's setup.
llvm-svn: 193554
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With this patch we correctly determine that ubuntu's ARM tree is not biarch
and use "lib" istead of "lib32".
Without this patch the search inside the arm tree for the crt files was failing
and we would end up trying to use the i686 ones in lib32.
llvm-svn: 193528
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is that the command is quoted differently from the arguments. The
command has '\' and the argument has '\\'. This is made unclear because
FileCheck escapes the single matched '\' when it prints the contents of
the variable, thus fooling me into thinking it had matched '\\' as
intended. The solution is to bind the gcc_install variable in the
argument list rather than out of the command. To do so we also have to
be a bit more careful so that we don't get stray other things into the
'.*' regex.
Also, because of the argument difference, '\\\\' is the correct
formulation before crtbegin, go back to that.
llvm-svn: 187489
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replacing one variable with the regex. This won't fix anything, but will
hopefully shed light on the nature of the failure.
llvm-svn: 187488
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testcase.
llvm-svn: 187487
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the path separator used when locating crtbegin.o.
I'll watch the bots to see if there are other issues lurking here.
llvm-svn: 187486
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llvm-svn: 187483
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Clang when linking and using a GCC installation from a GCC
cross-compiler.
This was desired already by two special case platforms (Android and
Mips), and turns out to be generally (if frustratingly) true. I've added
a substantial comment to the code clarifying the underlying assumptions
of doing actual cross compiles with Clang (or GCC for that matter!) and
help avoid further confusion here.
The end result is to realize that fully general form of PR12478 cannot
be resolved while we support existing cross-compiling GCC toolchains,
and linking with them (namely, linking against their libgcc and
libstdc++ installs). GCC installs these target libraries under
a target-specific prefix but one that may not be available within the
actual sysroot in use. When linking in this world, GCC works and Clang
should as well, but caveat emptor: DSOs from this tree must be
replicated and rpath-fixed to be found at runtime within the sysroot.
I've extended the cross compile test cases to cover these issues by
pointing them at a sysroot and actually checking the library search
paths.
llvm-svn: 187466
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