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llvm-project/clang/test/InterfaceStubs/object.c

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[clang][IFS][test][NFC] Tightening up clang-ifs tests to use -cc1 more often. Unless the test is explicitly testing a driver feature if clang interface stubs I have changed the tests to use %clang_cc1. This should make some changes I plan to make to the driver job pipeline cause fewer test changes and breakages.
2019-11-14 12:58:09 +08:00
// RUN: %clang_cc1 -fvisibility default -o - -emit-interface-stubs %s | FileCheck -check-prefix=CHECK-TAPI %s
[ifs] Use a tmp file instead of "-" Currently, Clang on AIX uses the system assembler to generate object files from assembly. The use of `-o -` results in a file named `-` instead of output to stdout. This patch uses a temporary object file instead. Reviewed By: DiggerLin, hubert.reinterpretcast Differential Revision: https://reviews.llvm.org/D117587
2022-01-22 00:18:48 +08:00
// RUN: %clang -fvisibility=default -c -o %t.o %s
// RUN: llvm-nm %t.o 2>&1 | FileCheck -check-prefix=CHECK-SYMBOLS %s
[clang][ifs] Clang Interface Stubs ToolChain plumbing. 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
2019-10-08 23:23:14 +08:00
[llvm][clang][IFS] Enhancing the llvm-ifs yaml format for symbol lists. Prior to this change the clang interface stubs format resembled something ending with a symbol list like this: Symbols: a: { Type: Func } This was problematic because we didn't actually want a map format and also because we didn't like that an empty symbol list required "Symbols: {}". That is to say without the empty {} llvm-ifs would crash on an empty list. With this new format it is much more clear which field is the symbol name, and instead the [] that is used to express an empty symbol vector is optional, ie: Symbols: - { Name: a, Type: Func } or Symbols: [] or Symbols: This further diverges the format from existing llvm-elftapi. This is a good thing because although the format originally came from the same place, they are not the same in any way. Differential Revision: https://reviews.llvm.org/D76979
2020-03-28 16:08:27 +08:00
// CHECK-TAPI: data", Type: Object, Size: 4 }
[clang][ifs] Clang Interface Stubs ToolChain plumbing. 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
2019-10-08 23:23:14 +08:00
// CHECK-SYMBOLS: data
int data = 42;