August 23, 2020 by Steven Colson


The -g flag tells the compiler to generate debug information. This does not affect whether the kernel file is created. On most Unix-like systems, this can be configured using the ulimit command. The gcc -g flag tells gcc to generate and inject debug information.



Host C ++ Toolbox, Both Compiler And Standard Library

LLVM places high demands on the host C ++ compiler and therefore tends to be open source Compiler error. We also try to keep up with improvements and developments in the C ++ language and library is pretty much accurate. Thus, we need a modern model. Host a C ++ toolbox, both the compiler and the standard library, to build LLVM.

LLVM is written using a subset of C ++, documented in Standards . We do most of the tests to apply this language version Popular host toolchains for some minimal versions of our build systems:

Anything older than these toolkits may work, but will require a forced Build a system with a special option that is not actually a supported host platform. Also note that older versions of these compilers often crash or Incorrectly compiled LLVM.

For less common toolkitsHostnames such as ICC or xlC, please note that A newer version may be required to support all C ++ features used in LLVM.

We monitor certain software versions that do not work when used as Part of the host tool chain. Sometimes this even includes linkers.

gcc release with debug info

GNU ld 2.16.X. Some versions 2.16.X of the ld linker are time consuming. Warning messages complaining about the character " .gnu.linkonce.t. * " defined in the rejected section. You can safely ignore these messages. defective and the link is correct. These messages disappear with ld 2.17.

GNU binutils 2.17: Binutils 2.17 contains a bug that causes a large connection Time (minutes instead of seconds) when LLVM was created. We recommend that you update to a later version ( or higher).

What is debugging compiler?

Compilation is the process of converting human readable code into code that a machine can understand and execute. Debugging is used to find out where in the code the application is faulty (debugging = troubleshooting). The tool that does this is called a compiler.

GNU Binutils 2.19.1 Gold: This version of Gold contained a bug that led to it Periodic errors while creating LLVM with position code. in Symptom - an error with circular dependencies. We recommend that you switch to newer version of gold.

How do debug symbols work?

Debug symbols usually contain not only the name of a function or global variable, but also the name of the source code file in which the symbol appears and the line number in which it is defined. As a result, binaries with debug symbols can become quite large, often several times the size of the remote file.







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