topic Re: dynamic linker error in Operating System - HP-UX

dynamic linker error

Edmund Brown — Mon, 19 Nov 2007 10:57:30 GMT

Hi All

Could anyone help in giving a little background to the following runtime error.

/usr/lib/pa20_64/dld.sl: Mmap failed due to errno: 13.

Seen when executing a 64-bit ELF executable.

Thanks
Ed

Re: dynamic linker error

Dennis Handly — Mon, 19 Nov 2007 11:07:10 GMT

It seems errno 13 is Permission denied?
This could happen if your shlibs aren't executable.

Re: dynamic linker error

A. Clay Stephenson — Mon, 19 Nov 2007 11:12:06 GMT

Errno 13 is EPERM meaning that the effective UID of the process lacks permission to access a file (probably a shared library). Execute "ldd your_executable" and check the permissions on each shared library listed.

Re: dynamic linker error

Dennis Handly — Mon, 19 Nov 2007 11:24:46 GMT

>Clay: Execute "ldd your_executable" and check the permissions on each shared library listed.

Since ldd uses dld, it probably won't tell you more than one bad shlib at a time. Using chatr(1) would list all shlibs but only at the first level.

Re: dynamic linker error

Edmund Brown — Tue, 20 Nov 2007 06:59:35 GMT

Thanks for that, I am afraid to say I incorrectly set the permissions on a recently downloaded set of libs. Could you point me the right direction for future error code look-ups.

Re: dynamic linker error

Steven Schweda — Tue, 20 Nov 2007 09:48:53 GMT

"man errno"

If you have only the number (like 13), not
the name (like EACCES), you can look in
/usr/include/sys/errno.h to see what's what.

> Errno 13 is EPERM [...]

Close.

Re: dynamic linker error

Dennis Handly — Wed, 21 Nov 2007 06:27:36 GMT

Minor point, dld is Dynamic LoaDer. See dld.sl(5) or dld.so(5).