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c382d03ca8
Second Landing Attempt: This patch enables end to end support for generating ELF interface stubs directly from clang. Now the following: clang -emit-interface-stubs -o libfoo.so a.cpp b.cpp c.cpp will product an ELF binary with visible symbols populated. Visibility attributes and -fvisibility can be used to control what gets populated. * Adding ToolChain support for clang Driver IFS Merge Phase * Implementing a default InterfaceStubs Merge clang Tool, used by ToolChain * Adds support for the clang Driver to involve llvm-ifs on ifs files. * Adds -emit-merged-ifs flag, to tell llvm-ifs to emit a merged ifs text file instead of the final object format (normally ELF) Differential Revision: https://reviews.llvm.org/D63978 llvm-svn: 374061
33 lines
1008 B
C++
33 lines
1008 B
C++
// REQUIRES: x86-registered-target
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// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs -emit-merged-ifs \
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// RUN: -interface-stub-version=experimental-ifs-v1 %s | \
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// RUN: FileCheck %s
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// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c %s | llvm-nm - 2>&1 | \
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// RUN: FileCheck -check-prefix=CHECK-SYMBOLS %s
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// CHECK: Symbols:
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// CHECK-DAG: _ZN3qux3barEii: { Type: Func }
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// CHECK-DAG: _ZN3baz3addIiEET_S1_S1_: { Type: Func }
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// CHECK-DAG: _Z4fbarff: { Type: Func }
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// CHECK-DAG: _ZN3baz3addIfEET_S1_S1_: { Type: Func }
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// Same symbols just different order.
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// CHECK-SYMBOLS-DAG: _Z4fbarff
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// CHECK-SYMBOLS-DAG: _ZN3baz3addIfEET_S1_S1_
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// CHECK-SYMBOLS-DAG: _ZN3baz3addIiEET_S1_S1_
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// CHECK-SYMBOLS-DAG: _ZN3qux3barEii
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namespace baz {
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template <typename T>
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T add(T a, T b) {
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return a + b;
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}
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} // namespace baz
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namespace qux {
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int bar(int a, int b) { return baz::add<int>(a, b); }
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} // namespace qux
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float fbar(float a, float b) { return baz::add<float>(a, b); }
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