llvm-capstone/lld/test/COFF/wrap-real-missing.s
Martin Storsjö 3785a413fe Reapply [LLD] [COFF] Implement a GNU/ELF like -wrap option
Add a simple forwarding option in the MinGW frontend, and implement
the private -wrap option in the COFF linker.

The feature in lld-link isn't gated by the -lldmingw option, but
the option is left as a private, undocumented option primarily
used by the MinGW driver.

The implementation is significantly based on the support for --wrap
in the ELF linker, but many small nuance details are different
between the ELF and COFF linkers, ending up with more than a few
implementation differences.

This fixes https://bugs.llvm.org/show_bug.cgi?id=47384.

Differential Revision: https://reviews.llvm.org/D89004

Reapplied with the bitfield member canInline fixed so it doesn't break
builds targeting windows.
2020-10-15 22:14:02 +03:00

22 lines
595 B
ArmAsm

// REQUIRES: x86
// RUN: llvm-mc -filetype=obj -triple=x86_64-win32-gnu %s -o %t.obj
// RUN: not lld-link -lldmingw -out:%t.exe %t.obj -entry:entry -subsystem:console -wrap:foo 2>&1 | FileCheck %s
// Check that we error out properly with an undefined symbol, if
// __real_foo is referenced and missing, even if the -lldmingw flag is set
// (which otherwise tolerates certain cases of references to missing
// sections, to tolerate certain GCC pecularities).
// CHECK: error: undefined symbol: foo
.global entry
entry:
call foo
ret
.global __wrap_foo
__wrap_foo:
call __real_foo
ret