how to find glibc sorce code

Message

Jackie Lin · Post by **Jackie Lin** » Sun Oct 27, 2019 10:57 am

Hi,
I want to read the source code of a function in C standard library.
How could I find the glibc source code in system?
and what about the C++ STL source code?

Thanks!

nick_gentoo · Post by **nick_gentoo** » Sun Oct 27, 2019 11:09 am

The downloaded sources of the installed packages are kept in the DISTDIR directory, defined in make.conf. There is a good chance that it is /usr/portage/distfiles.
The C library code is in the glibc archive.
The C++ standard library code is directly in gcc, I think...

Post by **NeddySeagoon** » Sun Oct 27, 2019 11:37 am

Jackie Lin,

Code: Select all

ebuild /full/path/to/ebuild unpack

will unpack the sources for your package of choice.
See also the prepare phase.

Sources will be downloaded if they are needed.

fturco · Post by **fturco** » Sun Oct 27, 2019 2:46 pm

@Jackie Lin: See https://sourceware.org/git/?p=glibc.git

GDH-gentoo · Post by **GDH-gentoo** » Sun Oct 27, 2019 3:13 pm

nick_gentoo wrote:The C++ standard library code is directly in gcc, I think...

Yes, it is in library libstdc++, which is provided by GCC. Code can also be viewed here: https://gcc.gnu.org/git/?p=gcc.git

Jackie Lin · Post by **Jackie Lin** » Wed Oct 30, 2019 9:11 am

Thanks!