dynamic linker error

[Edmund Brown]

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

[Dennis Handly · Accepted solution]

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

[A. Clay Stephenson]

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.

[Dennis Handly]

>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.

[Edmund Brown]

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.

[Steven Schweda]

"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.

[Dennis Handly]

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