2016-03-17 10:20:43 +08:00
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// REQUIRES: crash-recovery, shell
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// FIXME: This XFAIL is cargo-culted from crash-report.c. Do we need it?
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// XFAIL: mingw32
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// Test that clang is capable of collecting the right header files in the
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// crash reproducer if there's a symbolic link component in the path.
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// RUN: rm -rf %t
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// RUN: mkdir -p %t/i %t/m %t %t/sysroot
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2016-03-18 00:19:51 +08:00
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// RUN: cp -a %S/Inputs/crash-recovery/usr %t/i/
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2016-03-17 10:20:43 +08:00
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// RUN: ln -s include/tcl-private %t/i/usr/x
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// RUN: not env FORCE_CLANG_DIAGNOSTICS_CRASH= TMPDIR=%t TEMP=%t TMP=%t \
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// RUN: %clang -fsyntax-only %s -I %/t/i -isysroot %/t/sysroot/ \
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// RUN: -fmodules -fmodules-cache-path=%t/m/ 2>&1 | FileCheck %s
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// RUN: FileCheck --check-prefix=CHECKSRC %s -input-file %t/crash-vfs-*.m
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// RUN: FileCheck --check-prefix=CHECKSH %s -input-file %t/crash-vfs-*.sh
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// RUN: FileCheck --check-prefix=CHECKYAML %s -input-file \
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// RUN: %t/crash-vfs-*.cache/vfs/vfs.yaml
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// RUN: find %t/crash-vfs-*.cache/vfs | \
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// RUN: grep "usr/include/stdio.h" | count 1
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#include "usr/x/../stdio.h"
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// CHECK: Preprocessed source(s) and associated run script(s) are located at:
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// CHECK-NEXT: note: diagnostic msg: {{.*}}.m
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// CHECK-NEXT: note: diagnostic msg: {{.*}}.cache
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// CHECKSRC: @import cstd.stdio;
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// CHECKSH: # Crash reproducer
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// CHECKSH-NEXT: # Driver args: "-fsyntax-only"
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// CHECKSH-NEXT: # Original command: {{.*$}}
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// CHECKSH-NEXT: "-cc1"
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// CHECKSH: "-isysroot" "{{[^"]*}}/sysroot/"
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// CHECKSH-NOT: "-fmodules-cache-path="
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// CHECKSH: "crash-vfs-{{[^ ]*}}.m"
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// CHECKSH: "-ivfsoverlay" "crash-vfs-{{[^ ]*}}.cache/vfs/vfs.yaml"
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2016-12-09 11:11:48 +08:00
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// CHECKSH: "-fmodules-cache-path=crash-vfs-{{[^ ]*}}.cache/repro-modules"
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2016-03-17 10:20:43 +08:00
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2016-04-14 03:28:21 +08:00
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// CHECKYAML: 'case-sensitive':
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// CHECKYAML-NEXT: 'use-external-names': 'false',
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// CHECKYAML-NEXT: 'overlay-relative': 'true',
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2016-03-17 10:20:43 +08:00
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// CHECKYAML: 'type': 'directory'
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2016-05-07 07:58:58 +08:00
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// CHECKYAML: 'name': "/[[PATH:.*]]/i/usr",
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2016-03-17 10:20:43 +08:00
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// CHECKYAML-NEXT: 'contents': [
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// CHECKYAML-NEXT: {
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// CHECKYAML-NEXT: 'type': 'file',
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// CHECKYAML-NEXT: 'name': "module.map",
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Reapply [2] [VFS] Add 'overlay-relative' field to YAML files
This reapplies r261552 and r263748. Fixed testcase to reapply.
The VFS overlay mapping between virtual paths and real paths is done through
the 'external-contents' entries in YAML files, which contains hardcoded paths
to the real files.
When a module compilation crashes, headers are dumped into <name>.cache/vfs
directory and are mapped via the <name>.cache/vfs/vfs.yaml. The script
generated for reproduction uses -ivfsoverlay pointing to file to gather the
mapping between virtual paths and files inside <name>.cache/vfs. Currently, we
are only capable of reproducing such crashes in the same machine as they
happen, because of the hardcoded paths in 'external-contents'.
To be able to reproduce a crash in another machine, this patch introduces a new
option in the VFS yaml file called 'overlay-relative'. When it's equal to
'true' it means that the provided path to the YAML file through the
-ivfsoverlay option should also be used to prefix the final path for every
'external-contents'.
Example, given the invocation snippet "... -ivfsoverlay
<name>.cache/vfs/vfs.yaml" and the following entry in the yaml file:
"overlay-relative": "true",
"roots": [
...
"type": "directory",
"name": "/usr/include",
"contents": [
{
"type": "file",
"name": "stdio.h",
"external-contents": "/usr/include/stdio.h"
},
...
Here, a file manager request for virtual "/usr/include/stdio.h", that will map
into real path "/<absolute_path_to>/<name>.cache/vfs/usr/include/stdio.h.
This is a useful feature for debugging module crashes in machines other than
the one where the error happened.
Differential Revision: http://reviews.llvm.org/D17457
rdar://problem/24499339
llvm-svn: 263893
2016-03-20 10:08:48 +08:00
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// CHECKYAML-NEXT: 'external-contents': "/[[PATH]]/i/usr/include/module.map"
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2016-03-17 10:20:43 +08:00
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// CHECKYAML-NEXT: },
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// Test that by using the previous generated YAML file clang is able to find the
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// right files inside the overlay and map the virtual request for a path that
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// previously contained a symlink to work. To make sure of this, wipe out the
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// %/t/i directory containing the symlink component.
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// RUN: rm -rf %/t/i
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// RUN: unset FORCE_CLANG_DIAGNOSTICS_CRASH
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// RUN: %clang -E %s -I %/t/i -isysroot %/t/sysroot/ \
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// RUN: -ivfsoverlay %t/crash-vfs-*.cache/vfs/vfs.yaml -fmodules \
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// RUN: -fmodules-cache-path=%t/m/ 2>&1 \
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// RUN: | FileCheck %s --check-prefix=CHECKOVERLAY
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2016-04-14 03:28:21 +08:00
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// CHECKOVERLAY: @import cstd.stdio; /* clang -E: implicit import for "/{{[^ ].*}}/i/usr/x/../stdio.h" */
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