http://d.puremagic.com/issues/show_bug.cgi?id=10210
Martin Nowak <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|wrong-code | Summary|calling through PLT trashes |GDB might trash EAX when |EAX |stepping into a PLT call Severity|critical |minor --- Comment #3 from Martin Nowak <[email protected]> 2013-06-06 15:14:37 PDT --- cat > bug.d << CODE import lib; void main() { int val; printf("%p\n", &val); deref(&val) == 0 || assert(0); } CODE cat > lib.d << CODE extern(C) int printf(const char*, ...); int deref(int* p) { printf("%p\n", p); return *p; } CODE dmd -g -m32 -fPIC -shared lib.d -ofliblib.so dmd -g -m32 -fPIC bug.d -L-L. -L-llib -L-rpath=. ./bug ---- Oh, the above code actually works. It's not the PLT stub but the attached debugger (gdb-7.5.1) that trashes EAX. It only happens when stepping into a function called via PLT and I can only reproduce with emacs-GUD, probably because of some automatic variable update. It also means there is another reason why phobos unittests crash on X86 :(. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
