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ld.bfd doesn't do any inference of subsystem; unless the windows subsystem is specified, the console subsystem is used. For the console subsystem, the entry point is called mainCRTStartup, regardless of whether the the user code entry point is main or wmain. The same goes for the windows subsystem, where the entry point always is WinMainCRTStartup, for both WinMain and wWinMain in user code. One detail that we don't emulate, is that if the inferred entry point is undefined, ld.bfd silently just sets the entry point to the start of the image. And if an explicit entry point is set, but it is undefined, the link still succeeds but the linker warns about the entry point not being found. Differential Revision: https://reviews.llvm.org/D52931 llvm-svn: 343879
18 lines
401 B
ArmAsm
18 lines
401 B
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -triple=x86_64-windows-gnu %s -filetype=obj -o %t.o
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# RUN: lld-link -lldmingw %t.o -out:%t.exe
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# RUN: llvm-readobj -file-headers %t.exe | FileCheck %s
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# CHECK: AddressOfEntryPoint: 0x1001
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# CHECK: Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI (0x3)
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.text
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.globl foo
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.globl mainCRTStartup
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foo:
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ret
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mainCRTStartup:
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call foo
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ret
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