[Nasm-bugs] [Bug 3392650] New: Microsoft linker reports corrupt debug information

[noreply-nasm at dev.nasm.us]

https://bugzilla.nasm.us/show_bug.cgi?id=3392650

            Bug ID: 3392650
           Summary: Microsoft linker reports corrupt debug information
           Product: NASM
           Version: unspecified
          Hardware: PC
                OS: Windows
            Status: OPEN
          Severity: normal
          Priority: Medium
         Component: Assembler
          Assignee: nobody at nasm.us
          Reporter: michael at mehlich.com
                CC: chang.seok.bae at intel.com, gorcunov at gmail.com,
                    hpa at zytor.com, nasm-bugs at nasm.us
     Obtained from: Binary from nasm.us

Steps to reproduce:
  create test file with script below
  compile with nasm creating cv8 format debug
  link with microsoft linker creating .pdb file

#this file: <mytest.pl>
#Versions used:
#  nasm.exe: NASM version 2.14.02 compiled on Dec 26 2018
#  link.exe: Microsoft (R) Incremental Linker Version 14.16.27035.0
#Commands:
#  perl mytest.pl
#  nasm -fwin64 mytest.asm -g -F cv8
#  link.exe /nologo /incremental:no /subsystem:console mytest.obj /entry:main
/stack:65536,65536 /debug /pdb:mytest.pdb
#Error message from link step:
#  mytest.obj : warning LNK4209: debugging information corrupt; recompile
module; linking object as if no debug info
#  mytest.obj : warning LNK4209: debugging information corrupt; recompile
module; linking object as if no debug info

#program <mytest.asm> generated by following perl script:
open(OUTPUT,">mytest.asm");
print OUTPUT "\tglobal main\n";
print OUTPUT "segment .code\n";
print OUTPUT "main:\n";
for ($i=0; $i<10000; $i++) {
        print OUTPUT "\tmov [rel .LC".$i."], rax\n";
}
print OUTPUT "\tret\n";
print OUTPUT "segment .rdata\n";
for ($i=0; $i<10000; $i++) {
        print OUTPUT "\talignb 16, db 0\n";
        print OUTPUT "\tglobal .LC".$i."\n";
        print OUTPUT ".LC".$i.": dq 1\n";
}
close(OUTPUT);

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