[llvm] [llvm-readobj][COFF] Implement --coff-pseudoreloc in llvm-readobj to dump runtime pseudo-relocation records (PR #151816)

[Martin Storsjö via llvm-commits]

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@@ -0,0 +1,97 @@
+RUN: llvm-readobj --coff-pseudoreloc %p/Inputs/pseudoreloc.exe | FileCheck %s
+RUN: llvm-readobj --coff-pseudoreloc %p/Inputs/nop.exe.coff-x86-64 | FileCheck %s --check-prefix=NOSYM
+RUN: llvm-readobj --coff-pseudoreloc %p/Inputs/trivial.obj.coff-i386 | FileCheck %s --check-prefix=NORELOC
+
+CHECK:      Format: COFF-i386
+CHECK-NEXT: Arch: i386
+CHECK-NEXT: AddressSize: 32bit
+CHECK-NEXT: PseudoReloc [
+CHECK-NEXT:  Entry {
+CHECK-NEXT:   Symbol: 0x{{[0-9A-Z]+}}
+CHECK-NEXT:   SymbolName: sym1
+CHECK-NEXT:   Target: 0x{{[0-9A-Z]+}}
+CHECK-NEXT:   BitWidth: {{[0-9]+}}
+CHECK-NEXT:  }
+CHECK-NEXT:  Entry {
+CHECK-NEXT:   Symbol: 0x{{[0-9A-Z]+}}
+CHECK-NEXT:   SymbolName: sym2
+CHECK-NEXT:   Target: 0x{{[0-9A-Z]+}}
+CHECK-NEXT:   BitWidth: {{[0-9]+}}
+CHECK-NEXT:  }
+CHECK-NEXT:  Entry {
+CHECK-NEXT:   Symbol: 0x{{[0-9A-Z]+}}
+CHECK-NEXT:   SymbolName: sym1
+CHECK-NEXT:   Target: 0x{{[0-9A-Z]+}}
+CHECK-NEXT:   BitWidth: {{[0-9]+}}
+CHECK-NEXT:  }
+CHECK-NEXT: ]
+
+NOSYM-NOT: PseudoReloc
+NOSYM: The symbol table has been stripped
+NOSYM-NOT: PseudoReloc
+
+NORELOC-NOT: PseudoReloc
+NORELOC: The symbols for runtime pseudo-relocation are not found
+NORELOC-NOT: PseudoReloc
+
+
+pseudoreloc.exe is generated by following script:
+
+#--- generate.sh
+llvm-mc -triple i386-mingw32 -filetype obj pseudoreloc.dll.s -o pseudoreloc.dll.o
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mstorsjo wrote:

Perhaps include a `split-file` command here as well, for easier execution if one wants to try it?

https://github.com/llvm/llvm-project/pull/151816