[LLVMbugs] [Bug 16015] New: Undefined reference to __builtin_init_heap_trampoline
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Wed May 15 09:22:42 PDT 2013
http://llvm.org/bugs/show_bug.cgi?id=16015
Bug ID: 16015
Summary: Undefined reference to __builtin_init_heap_trampoline
Product: dragonegg
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: New Bugs
Assignee: baldrick at free.fr
Reporter: scott+llvm+bugzilla at pakin.org
CC: llvmbugs at cs.uiuc.edu
Classification: Unclassified
Created attachment 10515
--> http://llvm.org/bugs/attachment.cgi?id=10515&action=edit
Sample Go code that doesn't link with DragonEgg
Compiling and linking virtually any Go program with DragonEgg results in a
failure to find __builtin_init_heap_trampoline:
$ gccgo --version
gccgo (Ubuntu/Linaro 4.7.2-2ubuntu1) 4.7.2
Copyright (C) 2012 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ gccgo trampoline.go -o trampoline
$ gccgo -fplugin=/usr/local/lib/dragonegg.so trampoline.go -o trampoline
/tmp/ccpimsLI.o:trampoline.go:function main.main: error: undefined reference to
'__builtin_init_heap_trampoline'
collect2: error: ld returned 1 exit status
It seems that this symbol is being used when compiling closures with nontrivial
bodies (i.e., that can't be optimized out). Only very simple Go programs work
with DragonEgg.
-- Scott
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