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Including select builtin headers in system modules is a workaround for module cycles, primarily in Apple's Darwin module that includes all of its C standard library headers. The workaround is problematic because it doesn't include all of the builtin headers (inttypes.h is notably absent), and it also doesn't include C++ headers. The straightforward for for this is to make top level modules for all of the C standard library headers and unwind.h in C++, clang, and the OS. However, doing so in clang before the OS modules are ready re-introduces the module cycles. Add a -fbuiltin-headers-in-system-modules option to control if the special builtin headers belong to system modules or builtin modules. Pass the option by default for Apple. Reviewed By: ChuanqiXu, Bigcheese, benlangmuir Differential Revision: https://reviews.llvm.org/D159483
65 lines
3.2 KiB
C
65 lines
3.2 KiB
C
// This test verifies that only strict hashing includes search paths and
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// diagnostics in the module context hash.
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// RUN: rm -rf %t
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// RUN: %clang_cc1 -fsyntax-only -internal-isystem \
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// RUN: %S/Inputs/System/usr/include -fmodules -fimplicit-module-maps \
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// RUN: -fbuiltin-headers-in-system-modules -fmodules-cache-path=%t %s \
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// RUN: -Rmodule-build 2> %t1
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// RUN: rm -rf %t
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// RUN: %clang_cc1 -fsyntax-only -internal-isystem \
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// RUN: %S/Inputs/System/usr/include -internal-isystem %S -fmodules \
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// RUN: -fbuiltin-headers-in-system-modules -fimplicit-module-maps \
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// RUN: -fmodules-cache-path=%t %s -Rmodule-build 2> %t2
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// RUN: rm -rf %t
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// RUN: %clang_cc1 -fsyntax-only -internal-isystem \
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// RUN: %S/Inputs/System/usr/include -internal-isystem %S -fmodules \
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// RUN: -fbuiltin-headers-in-system-modules -fimplicit-module-maps \
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// RUN: -fmodules-cache-path=%t %s -fmodules-strict-context-hash \
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// RUN: -Rmodule-build 2> %t3
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// RUN: rm -rf %t
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// RUN: %clang_cc1 -fsyntax-only -Weverything -internal-isystem \
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// RUN: %S/Inputs/System/usr/include -fmodules -fmodules-strict-context-hash \
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// RUN: -fbuiltin-headers-in-system-modules -fimplicit-module-maps \
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// RUN: -fmodules-cache-path=%t %s -Rmodule-build 2> %t4
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// RUN: echo %t > %t.path
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// RUN: cat %t.path %t1 %t2 %t3 %t4 | FileCheck %s
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// This tests things verified by ASTReader::checkLanguageOptions that are not
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// part of LangOpts.def.
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// RUN: rm -rf %t
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// RUN: %clang_cc1 -fsyntax-only -internal-isystem \
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// RUN: %S/Inputs/System/usr/include -fmodules -fimplicit-module-maps \
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// RUN: -fbuiltin-headers-in-system-modules -fmodules-cache-path=%t \
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// RUN: -x objective-c %s -Rmodule-build 2> %t1
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// RUN: rm -rf %t
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// RUN: %clang_cc1 -fsyntax-only -internal-isystem \
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// RUN: %S/Inputs/System/usr/include -fmodules -fimplicit-module-maps \
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// RUN: -fbuiltin-headers-in-system-modules -fobjc-runtime=macosx-1.0.0.0 \
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// RUN: -fmodules-cache-path=%t -x objective-c %s -Rmodule-build 2> %t2
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// RUN: rm -rf %t
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// RUN: %clang_cc1 -fsyntax-only -internal-isystem \
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// RUN: %S/Inputs/System/usr/include -fmodules -fimplicit-module-maps \
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// RUN: -fbuiltin-headers-in-system-modules -fcomment-block-commands=lp,bj \
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// RUN: -fmodules-cache-path=%t -x objective-c %s -Rmodule-build 2> %t3
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// RUN: echo %t > %t.path
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// RUN: cat %t.path %t1 %t2 %t3 | FileCheck --check-prefix=LANGOPTS %s
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#include <stdio.h>
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// CHECK: [[PREFIX:(.*[/\\])+[a-zA-Z0-9.-]+]]
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// CHECK: building module 'cstd' as '[[PREFIX]]{{[/\\]}}[[CONTEXT_HASH:[A-Z0-9]+]]{{[/\\]}}cstd-[[AST_HASH:[A-Z0-9]+]].pcm'
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// CHECK: building module 'cstd' as '{{.*[/\\]}}[[CONTEXT_HASH]]{{[/\\]}}cstd-[[AST_HASH]].pcm'
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// CHECK-NOT: building module 'cstd' as '{{.*[/\\]}}[[CONTEXT_HASH]]{{[/\\]}}
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// CHECK: cstd-[[AST_HASH]].pcm'
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// CHECK-NOT: building module 'cstd' as '{{.*[/\\]}}[[CONTEXT_HASH]]{{[/\\]}}
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// CHECK: cstd-[[AST_HASH]].pcm'
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// LANGOPTS: [[PREFIX:(.*[/\\])+[a-zA-Z0-9.-]+]]
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// LANGOPTS: building module 'cstd' as '[[PREFIX]]{{[/\\]}}[[CONTEXT_HASH:[A-Z0-9]+]]{{[/\\]}}cstd-[[AST_HASH:[A-Z0-9]+]].pcm'
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// LANGOPTS-NOT: building module 'cstd' as '{{.*[/\\]}}[[CONTEXT_HASH]]{{[/\\]}}
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// LANGOPTS: cstd-[[AST_HASH]].pcm'
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// LANGOPTS-NOT: building module 'cstd' as '{{.*[/\\]}}[[CONTEXT_HASH]]{{[/\\]}}
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// LANGOPTS: cstd-[[AST_HASH]].pcm'
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