2397f67166
Starting from Windows SDK for Windows 11 (10.0.22000.x), all the system libraries (.lib files) contain a section with the '/<XFGHASHMAP>/' name. This looks like the libraries are built with control flow guard enabled: https://docs.microsoft.com/en-us/cpp/build/reference/guard-enable-control-flow-guard?view=msvc-170 To let the LLVM tools (llvm-ar, llvm-lib) work with these libraries, this patch just skips the section offset check for sections with the '/<XFGHASHMAP>/' name. Closes: llvm/llvm-project#53814 Signed-off-by: Pavel Samolysov <pavel.samolysov@intel.com> Reviewed By: jhenderson, thieta Differential Revision: https://reviews.llvm.org/D120645
34 lines
1020 B
Plaintext
34 lines
1020 B
Plaintext
# RUN: rm -rf %t && mkdir -p %t && cd %t
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# RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o a.obj %S/Inputs/a.s
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# RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o b.obj %S/Inputs/b.s
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# RUN: llvm-lib /out:xfghashmap.lib a.obj b.obj
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## Replace a section in the library file with /<XFGHASHMAP>/ emulating
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## a library from the Windows SDK for Windows 11.
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# RUN: %python %s xfghashmap.lib b.obj/
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## This should print the /<XFGHASHMAP>/ section as well as an .obj one.
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# RUN: llvm-lib /list %t/xfghashmap.lib | FileCheck %s
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# CHECK: a.obj
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# CHECK: /<XFGHASHMAP>/
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# CHECK-NOT: b.obj
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import sys
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if len(sys.argv) < 3:
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print("Use: python3 xfghashmap-list.test <LIBRARY_FILE> <TEMPLATE>")
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exit(1)
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template = bytes(sys.argv[2], 'utf-8')
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xfghashmap = b'/<XFGHASHMAP>/'
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data = None
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with open(sys.argv[1], "rb") as inp:
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data = inp.read()
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with open(sys.argv[1], "wb") as outp:
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pos = data.find(template)
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outp.write(data[:pos])
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outp.write(xfghashmap)
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outp.write(data[pos + len(xfghashmap):])
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