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llvm-mirror/test/tools/llvm-ifs/func.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 %S/object.ifs | \
# RUN: FileCheck %s --check-prefixes=CHECK-IFS
# RUN: llvm-ifs -action write-bin -o - %s %S/object.ifs | \
# RUN: llvm-readelf --all | FileCheck %s --check-prefixes=CHECK-ELF
# RUN: llvm-ifs -action write-bin -force-format TBD -o - %s %S/object.ifs | \
# RUN: FileCheck %s --check-prefixes=CHECK-DARWIN-TBD3
# RUN: llvm-ifs -action write-ifs -o - %s %s | \
# RUN: FileCheck %s --check-prefixes=CHECK-MERGE-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: a, Type: Func }
# CHECK-IFS-DAG: - { Name: b, Type: Object, Size: 4 }
# CHECK-IFS: ...
# CHECK-ELF: ELF Header:
# CHECK-ELF: Class: ELF64
# CHECK-ELF: Type: DYN (Shared object file)
# CHECK-ELF: FUNC GLOBAL DEFAULT 1 a
# CHECK-ELF: OBJECT GLOBAL DEFAULT 1 b
# CHECK-DARWIN-TBD3: --- !tapi-tbd-v3
# CHECK-DARWIN-TBD3-NEXT: archs: [ x86_64 ]
# CHECK-DARWIN-TBD3-NEXT: platform: macosx
# CHECK-DARWIN-TBD3-NEXT: flags: [ flat_namespace, not_app_extension_safe ]
# CHECK-DARWIN-TBD3-NEXT: install-name: ''
# CHECK-DARWIN-TBD3-NEXT: current-version: 0
# CHECK-DARWIN-TBD3-NEXT: compatibility-version: 0
# CHECK-DARWIN-TBD3-NEXT: objc-constraint: none
# CHECK-DARWIN-TBD3-NEXT: exports:
# CHECK-DARWIN-TBD3-NEXT: - archs: [ x86_64 ]
# CHECK-DARWIN-TBD3-NEXT: symbols: [ a, b ]
# CHECK-DARWIN-TBD3-NEXT: ...
# Here we are testing to see if two identical symbols will merge.
# CHECK-MERGE-IFS: --- !experimental-ifs-v2
# CHECK-MERGE-IFS-NEXT: IfsVersion: 2.0
# CHECK-MERGE-IFS-NEXT: Triple: x86_64-unknown-linux-gnu
# CHECK-MERGE-IFS-NEXT: ObjectFileFormat: ELF
# CHECK-MERGE-IFS-NEXT: Symbols:
# CHECK-MERGE-IFS-NEXT: - { Name: a, Type: Func }
# CHECK-MERGE-IFS-NEXT: ...
--- !experimental-ifs-v2
IfsVersion: 2.0
Triple: x86_64-unknown-linux-gnu
ObjectFileFormat: ELF
Symbols:
- { Name: a, Type: Func }
...