Mercurial > hg > CbC > CbC_llvm
view lld/test/COFF/wrap-dllimport.s @ 213:25ca0248ac32
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Sun, 11 Jul 2021 17:05:31 +0900 |
parents | 2e18cbf3894f |
children |
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// REQUIRES: x86 // Check that we can wrap a dllimported symbol, so that references to // __imp_<symbol> gets redirected to a defined local import instead. // RUN: split-file %s %t.dir // RUN: llvm-mc -filetype=obj -triple=i686-win32-gnu %t.dir/main.s -o %t.main.obj // RUN: llvm-mc -filetype=obj -triple=i686-win32-gnu %t.dir/other.s -o %t.other.obj // RUN: lld-link -dll -out:%t.dll %t.other.obj -noentry -safeseh:no -export:foo -implib:%t.lib // RUN: lld-link -out:%t.exe %t.main.obj %t.lib -entry:entry -subsystem:console -debug:symtab -safeseh:no -wrap:foo -lldmap:%t.map // RUN: llvm-objdump -s -d --print-imm-hex %t.exe | FileCheck %s // CHECK: Contents of section .rdata: // CHECK-NEXT: 402000 06104000 // CHECK: Disassembly of section .text: // CHECK-EMPTY: // CHECK: 00401000 <_entry>: // CHECK-NEXT: 401000: ff 25 00 20 40 00 jmpl *0x402000 // CHECK-EMPTY: // CHECK-NEXT: 00401006 <___wrap_foo>: // CHECK-NEXT: 401006: c3 retl // The jmpl instruction in _entry points at an address in 0x402000, // which is the first 4 bytes of the .rdata section (above), which is a // pointer that points at ___wrap_foo. #--- main.s .global _entry _entry: jmpl *__imp__foo .global ___wrap_foo ___wrap_foo: ret #--- other.s .global _foo _foo: ret