llvm dev - Oct 2008 - [LLVMdev] 回复：Re: [LLVMdev] [Need your help]

Hi Eli,
Thanks for your rapid response!
Now I have another question.
How to get LLVM bc files successfully by compiling test.c and
static libraries ?
Thanks a lot!

----- 原始邮件 -----
发件人：Eli&nbsp;Friedman&nbsp;<eli.friedman at gmail.com>
收件人：LLVM&nbsp;Developers&nbsp;Mailing&nbsp;List&nbsp;<llvmdev
at cs.uiuc.edu>
主题：Re:&nbsp;[LLVMdev]&nbsp;[Need&nbsp;your&nbsp;help]
日期：2008-10-18 01:05:03

On&nbsp;Fri,&nbsp;Oct&nbsp;17,&nbsp;2008&nbsp;at&nbsp;9:46&nbsp;AM,&nbsp;&nbsp;<kangjing820516
at sina.com>&nbsp;wrote:
>&nbsp;I&nbsp;tried&nbsp;to&nbsp;compile&nbsp;a&nbsp;C&nbsp;programme&nbsp;test.c&nbsp;with&nbsp;llvm-gcc&nbsp;by&nbsp;task:
>&nbsp;[root at
localhost&nbsp;mylib]#&nbsp;llvm-gcc&nbsp;-emit-llvm&nbsp;test.c&nbsp;-Llibmylib.a&nbsp;-c&nbsp;-o
>&nbsp;test.bc
The&nbsp;-L&nbsp;flag&nbsp;doesn't&nbsp;do&nbsp;anything&nbsp;here.
>&nbsp;[root at localhost&nbsp;mylib]#&nbsp;lli&nbsp;test.bc
>
>&nbsp;after&nbsp;running&nbsp;the&nbsp;command&nbsp;"lli&nbsp;test.bc",print&nbsp;the&nbsp;error&nbsp;info&nbsp;as&nbsp;follows:
>&nbsp;ERROR:&nbsp;Program&nbsp;used&nbsp;external&nbsp;function&nbsp;'gt'&nbsp;which&nbsp;could&nbsp;not&nbsp;be&nbsp;resolved!
>&nbsp;lli[0x85c245f]
>&nbsp;/lib/libc.so.6(abort+0x101)[0x6988b1]
>&nbsp;lli(_ZN4llvm3JIT25getPointerToNamedFunctionERKSs+0xd2)[0x8267952]
>&nbsp;Aborted
Of&nbsp;course;&nbsp;where&nbsp;do&nbsp;you&nbsp;expect&nbsp;it&nbsp;to&nbsp;find&nbsp;the&nbsp;function?

lli&nbsp;only&nbsp;supports&nbsp;loading&nbsp;LLVM&nbsp;bc&nbsp;files&nbsp;and&nbsp;dynamic&nbsp;libraries.

-Eli
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2008/10/18  <kangjing820516 at sina.com>:
> Hi Eli,
>
> Thanks for your rapid response!
>
> Now I have another question.
>
> How to get LLVM bc files successfully by compiling test.c and static
> libraries ?
>
> Thanks a lot!
You can use llvm-ld to combine multiple bc files into a single bc
file.  It's not possible to put native code into a bc file.

-Eli