[lld] [llvm] [LLD][COFF] Add more variety of CET and hotpatch flags (PR #150761)

[Martin Storsjö via llvm-commits]

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@@ -0,0 +1,33 @@
+RUN: yaml2obj %p/Inputs/ret42.yaml -o %t.obj
+RUN: lld-link /out:%t.exe /entry:main /hotpatchcompatible /functionpadmin:6 %t.obj
+RUN: llvm-readobj --coff-debug-directory %t.exe | FileCheck -check-prefix=CHECK1 %s
+
+CHECK1:  DebugEntry {
+CHECK1:    Characteristics: 0x0
+CHECK1:    Type: ExtendedDLLCharacteristics (0x14)
+CHECK1:    ExtendedCharacteristics [ (0x80)
+CHECK1:      IMAGE_DLL_CHARACTERISTICS_EX_HOTPATCH_COMPATIBLE (0x80)
+CHECK1:    ]
+CHECK1:    RawData (
+CHECK1:      0000: 80000000                             |....|
+CHECK1:    )
+CHECK1:  }
+
+// ---- more than 6 bytes is accepted
+RUN: lld-link /out:%t.exe /entry:main /hotpatchcompatible /functionpadmin:10 %t.obj
+RUN: llvm-readobj --coff-debug-directory %t.exe | FileCheck -check-prefix=CHECK2 %s
+
+CHECK2:  DebugEntry {
+CHECK2:    Characteristics: 0x0
+CHECK2:    Type: ExtendedDLLCharacteristics (0x14)
+CHECK2:    ExtendedCharacteristics [ (0x80)
+CHECK2:      IMAGE_DLL_CHARACTERISTICS_EX_HOTPATCH_COMPATIBLE (0x80)
+CHECK2:    ]
+CHECK2:    RawData (
+CHECK2:      0000: 80000000                             |....|
+CHECK2:    )
+CHECK2:  }
+
+// ---- hotpach compatible image requires at least 6 bytes function padding
+RUN: not lld-link /out:%t.exe /entry:main /hotpatchcompatible /functionpadmin:5 %t.obj
----------------
mstorsjo wrote:

This `RUN` line seems to lack a `FileCheck` invocation, actually checking the error message below.

For reasons relating to how lld is invoked in the tests, you may need to wrap it in `env LLD_IN_TEST=1 not lld-link ... 2>&1 | FileCheck` to get the error message output available for checking.

https://github.com/llvm/llvm-project/pull/150761