Bug #11680: LD_PRELOAD setting causes child process crash on mingw

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.3.0dev (2015-11-11 trunk 47767) [x64-mingw32]
• Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN

[h.shirosaki (Hiroshi Shirosaki)]

I see make test-all failures on mingw with msys2.

TestMiniTestUnitTestCase#test_assert_equal_different_long =       0 [main] diff 8736 C:\Users\h.shirosaki\work\rubyinsta
ller\sandbox\devkit\usr\bin\diff.exe: *** fatal error - error while loading shared libraries: C: cannot open shared obje
ct file: No such file or directory
    434 [main] diff 8736 cygwin_exception::open_stackdumpfile: Dumping stack trace to diff.exe.stackdump
      0 [main] diff 8048 C:\Users\h.shirosaki\work\rubyinstaller\sandbox\devkit\usr\bin\diff.exe: *** fatal error - erro
r while loading shared libraries: C: cannot open shared object file: No such file or directory
    388 [main] diff 8048 cygwin_exception::open_stackdumpfile: Dumping stack trace to diff.exe.stackdump
0.06 s = F

diff.exe of msys2 crashed.
LD_PRELOAD is set in tool/runruby.rb on test-all. If I set ENV['LD_PRELOAD'] = nil, diff.exe doesn't crash.
LD_PRELOAD may not usable on msys2(cygwin).

diff --git a/configure.in b/configure.in
index 0d253a9..e97871d 100644
--- a/configure.in
+++ b/configure.in
@@ -3126,6 +3126,7 @@ if test "$with_dln_a_out" != yes; then
 			XLDFLAGS="$XLDFLAGS -Wl,--stack,0x00200000,--enable-auto-import"
 			DLDFLAGS="${DLDFLAGS} -Wl,--enable-auto-image-base,--enable-auto-import"
 			: ${LIBPATHENV=""}
+			: ${PRELOADENV=""}
 			rb_cv_dlopen=yes],
 	[hiuxmpp], [	: ${LDSHARED='$(LD) -r'}],
 	[atheos*], [	: ${LDSHARED='$(CC) -shared'}

• Status changed from Open to Closed

Applied in changeset r52558.

---

Unset LD_PRELOAD on mingw

• configure.in: unset LD_PRELOAD on mingw. msys2 child processes
  crash at make test-all with LD_PRELOAD.
  [ruby-core:71461] [Bug #11680]