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llvm-mirror/test/tools/llvm-ifs/weak.ifs
Puyan Lotfi a3e3cecf73 [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
2020-04-01 10:49:06 -04:00

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# RUN: llvm-ifs -action write-ifs -o - %s | FileCheck %s --check-prefixes=CHECK-IFS
# CHECK-IFS: --- !experimental-ifs-v2
# CHECK-IFS-NEXT: IfsVersion: 2.0
# CHECK-IFS-NEXT: Triple: x86_64-unknown-linux-gnu
# CHECK-IFS-NEXT: ObjectFileFormat: ELF
# CHECK-IFS-NEXT: Symbols:
# CHECK-IFS-DAG: - { Name: _Z8weakFuncv, Type: Func, Weak: true }
# CHECK-IFS-DAG: - { Name: _Z10strongFuncv, Type: Func }
# CHECK-IFS: ...
--- !experimental-ifs-v2
IfsVersion: 2.0
Triple: x86_64-unknown-linux-gnu
ObjectFileFormat: ELF
Symbols:
- { Name: _Z8weakFuncv, Type: Func, Weak: true }
- { Name: _Z10strongFuncv, Type: Func }
...