我正尝试使用LLVM后端编译文件,该文件先前是使用Java后端编译的,并收到以下警告:
ld: warning: could not create compact unwind for _step: stack subq instruction is too different from dwarf stack size
然后在运行时出现以下错误:
java.lang.UnsupportedOperationException
at org.kframework.backend.llvm.LLVMRewriter$1.search(LLVMRewriter.java:149)
at org.kframework.krun.modes.KRunExecutionMode.execute(KRunExecutionMode.java:54)
at org.kframework.krun.KRun.run(KRun.java:85)
at org.kframework.krun.KRunFrontEnd.run(KRunFrontEnd.java:95)
at org.kframework.main.FrontEnd.main(FrontEnd.java:62)
at org.kframework.main.Main.runApplication(Main.java:118)
at org.kframework.main.Main.runApplication(Main.java:108)
at org.kframework.main.Main.main(Main.java:56)
[Error] Internal: Uncaught exception thrown of type
UnsupportedOperationException (UnsupportedOperationException: null)
这些是什么意思?
答案 0 :(得分:0)
llvm后端尚不支持krun --search
。目前唯一支持搜索的后端是Java和Haskell后端。
就链接器警告而言,我不确定它的含义,但它与调试数据有关,因此您可以忽略它,并且不会影响可执行文件的行为。