[Mingw-notify] [ mingw-Bugs-873717 ] --enable-runtime-pseudo-reloc broken

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Bugs item #873717, was opened at 2004-01-10 01:57
Message generated for change (Comment added) made by dannysmith
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=102435&aid=873717&group_id=2435

Category: ld
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Timo Hartmann (thartmann)
Assigned to: Danny Smith (dannysmith)
Summary: --enable-runtime-pseudo-reloc broken

Initial Comment:
--enable-runtime-pseudo-reloc does not work correctly
if one links directly against a dll in certain cases,
but if one links against a input-library, it works.

the problematic case is:
  -one build a dll with c++-classes
  -one uses virtual methods
  -one uses a static object of one of these classes

  see test-dll.tgz and readme.txt therin for more details

source of problem:
  the vtable of these classes are not linked properly
if one links  
  direct against a dll.

my version:
  gcc 3.3.1 (mingw special 20030804-1)
  ld   2.13.90 20030111
  mingw-runtime-3.2.tar.gz



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>Comment By: Danny Smith (dannysmith)
Date: 2004-01-10 09:42

Message:
Logged In: YES 
user_id=11494

Thanks for the useful testcase.

The bug is fixed in gcc and binutils sources by changes in the 
handling of readonly data.  With GCC-3.3.3  (patched with 
backports of the trunk changes)

g++-3.3.3 -I./ -Wall -g -c test.cpp -o test.o
g++-3.3.3 -I./ -Wall -g -c test-dll.cpp -o test-dll.o
g++-3.3.3 -shared -o test-dll.dll test-dll.o -Wl,--out-
implib,libtest-a.a
g++-3.3.3 -o a-dll.exe test.o -ltest-dll -L./ -Wl,--enable-
runtime-pseudo-reloc
Info: resolving __ZN4test2b2E by linking to 
__imp___ZN4test2b2E (auto-import)
Info: resolving __ZTV2B2 by linking to __imp___ZTV2B2 (auto-
import)
g++-3.3.3 -o a-a.exe test.o -ltest-a -L./ -Wl,--enable-
runtime-pseudo-reloc
Info: resolving __ZN4test2b2E by linking to 
__imp___ZN4test2b2E (auto-import)
Info: resolving __ZTV2B2 by linking to __imp___ZTV2B2 (auto-
import)

and both  exes seem to run fine

Danny

----------------------------------------------------------------------

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