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Hi: In the using the speex software, we found that the "speex_alloc" of the code did not check whether the memory was allocated and used it directly. Is there a security risk? Is there a solution for this? For example(Attached code screenshot): speex-1.2rc1: sb_celp.c Line From 242 to 251. (in function sb_encoder_init) -----邮件原件----- 发件人: Jean-Marc Valin [mailto:jmvalin at

Hi, I found some issues about libvorbis, as they may be potential vulnerabilities, who I can contact before disclosing? Thanks. guoxiang niu 华为技术有限公司 Huawei Technologies Co., Ltd. [Company_logo] ________________________________ 本邮件及其附件含有华为公司的保密信息，仅限于发送给上面地址中列出的个人或群组。禁 止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、或散发）本邮件中 的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本邮件！ This e-mail and its attachments contain

Yes, it's an integral part of the Instruction. You can change it by providing a name when you create the instruction. Reid On Thu, Jun 10, 2010 at 8:34 AM, Xiaolong Tang <xiaolong.snake at gmail.com> wrote: > Hi all, > > In the language specifications, many instructions have this form: > >  <result> = ... > > So, where is "<result>" defined?

Good evening, Tang. > What is the type of the first operand of the instruction (i.e., > getOperand(0))? It might be ConstantExpr. You may use dyn_cast<GEPOperator>(getPointerOperand()). Also GetElementPtrInst* can be casted to GEPOperator. ...Takumi 2010/6/18 Xiaolong Tang <xiaolong.snake at gmail.com>: > > Hey, > > Considering the following instruction: >

Hello Reid, Thanks. > Yes, it's an integral part of the Instruction. You can change it by > providing a name when you create the instruction. Following your hint, can I understand in this following way? The name (denoted by "<result>") is actually a referrer to the instruction . Consider this instruction: %this_addr = alloca %struct.String* ;

On 27 August 2010 18:56, Xiaolong Tang <xiaolong.snake at gmail.com> wrote: > Just wondering if LLVM has any command options or tool to allow for > demangling C++ names from the LLVM bitcode? c++filt? --renato

On Thu, Jun 10, 2010 at 9:00 AM, Xiaolong Tang <xiaolong.snake at gmail.com> wrote: > > Hello Reid, > > Thanks. > >> Yes, it's an integral part of the Instruction.  You can change it by >> providing a name when you create the instruction. > > Following your hint, can I understand in this following way? > > The name (denoted by

Guess I have found some clues. Some necessary libraries have to be loaded while trying to generate native code or do interpretation. Then another question emerges: Is there a way to determine the necessary libraries in need? And where to locate these necessary libraries? Xiaolong > Hi All, > > I have a program that uses C++ STL a lot. To have the source code for > STL functions, I

On Aug 27, 2010, at 11:43 AM, Xiaolong Tang wrote: > Hi Renato, > >>> Just wondering if LLVM has any command options or tool to allow for >>> demangling C++ names from the LLVM bitcode? >> >> c++filt? > > Do you refer to any particular version of c++filt? I tried, but seemed > not to work. For example, when I run a command as below: > >

Hi Xiaolong, > As Duncan described, "lli -load=libstdc++.dylib ..." works. I, > however, encounted an "Illegal instruction" message, while I was > trying to interpret a large program. are you using the interpreter or the JIT? So, does lli have a debug switch > for dumping out the details for errors? > > Using llc is not that simple, and I have not gotten

Hi all, In the language specifications, many instructions have this form: <result> = ... So, where is "<result>" defined? Is it an integral part of an instruction? Consider the "getelementptr" instruction: <result> = getelementptr <pty>* <ptrval>{, <ty> <idx>}* How is the "<result>" represented? Best,

Hey, Considering the following instruction: %20 = load %struct.Node** getelementptr inbounds (%struct.Node* @head, i32 0, i32 0), align 16 ; <%struct.Node*> [#uses=1] What is the type of the first operand of the instruction (i.e., getOperand(0))? I thought the operand is a "GetElementPtr" instruction, however, the predicate "isa<Instruction>()" over

Hey all, Just wondering if LLVM has any command options or tool to allow for demangling C++ names from the LLVM bitcode? Thanks! Best, Xiaolong

Hey, LLVM allows to export source level debug information via meta data, I am wondering if there is any mappings between the information in the normal LLVM code and that in the meta data associated with the normal LLVM code. Consider one usage. Given an function parameter (argument) "x", via "getType()" we retrieve the type of "x". The type might be, to some

Hi all, Considering the limit time I have for an implementation, I better ask for your inputs on a few questions. Any answer is to be much appreciated. First, how does LLVM handle the "new statement" of C++? Could any one give me any hint? Second, what properties does the callgraph generated by LLVM has? One property I am interesting in is whether the callgraph is a safe

Thanks Duncan and Ashok, As Duncan described, "lli -load=libstdc++.dylib ..." works. I, however, encounted an "Illegal instruction" message, while I was trying to interpret a large program. So, does lli have a debug switch for dumping out the details for errors? Using llc is not that simple, and I have not gotten through the compilation process. For instance, "llc -o

Hi Renato, > > Just wondering if LLVM has any command options or tool to allow for > > demangling C++ names from the LLVM bitcode? > > c++filt? Do you refer to any particular version of c++filt? I tried, but seemed not to work. For example, when I run a command as below: c++filt _ZNSt4listIiSaIiEEaSERKS1_ The output remains the same as the input symbol. By the way,

Hi Xiaolong, I changed the code so it now prints "external node" instead. The external node represents all functions external to the module. So, for example, if a function F calls a function G, but G is only declared in the module, rather than being defined there, then the callgraph gets an edge from F to the external node (the fact that the call was to G is discarded, only the fact

Hi everyone, I am wondering what is the right way to register an alias analysis pass. My alias analysis pass is implemented in a dynamic load module. As I can see, a general way to register a pass looks like: llvm::RegisterPass<Analyzer> X("rci", "RCI Pass"); However, registering a type-based analysis uses: INITIALIZE_AG_PASS(...) I think, registering an

Hello Duncan, > >> what version of LLVM are you using? I don't think LLVM 2.7 uses a > >> "indirect call node". However it does use a "external node", which > >> is used when a function external to the current module is called. > >> > > > > The "external node" makes sense. However, I am using LLVM 2.8. (See >