[Bug gdb/9645] GDB needs a --sysroot command line option

[Bug gdb/9645] GDB needs a --sysroot command line option

[jg at jguk dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=9645

Jonny Grant <jg at jguk dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jg at jguk dot org

--- Comment #4 from Jonny Grant <jg at jguk dot org> ---
I came up with similar on Ubuntu LTS looking at a core file. Looks like snaps
include allt heir own libs (I'm not really a fan of this approach DLL hell, but
anyway)

Would be great to have this feature.

$ gdb -c chrome_S6_1594713950.core
/snap/chromium/1213/usr/lib/chromium-browser/chrome
GNU gdb (Ubuntu 9.1-0ubuntu1) 9.1
<snip>

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /snap/chromium/1213/usr/lib/chromium-browser/chrome...
(No debugging symbols found in
/snap/chromium/1213/usr/lib/chromium-browser/chrome)
[New LWP 927798]

warning: .dynamic section for "/lib/x86_64-linux-gnu/libpthread.so.0" is not at
the expected address (wrong library or version mismatch?)

warning: .dynamic section for "/lib/x86_64-linux-gnu/librt.so.1" is not at the
expected address (wrong library or version mismatch?)

warning: .dynamic section for "/lib/x86_64-linux-gnu/libsystemd.so.0" is not at
the expected address (wrong library or version mismatch?)

warning: .dynamic section for "/lib/x86_64-linux-gnu/libmount.so.1" is not at
the expected address (wrong library or version mismatch?)

warning: .dynamic section for "/lib/x86_64-linux-gnu/liblzma.so.5" is not at
the expected address (wrong library or version mismatch?)

warning: .dynamic section for "/usr/lib/x86_64-linux-gnu/liblz4.so.1" is not at
the expected address (wrong library or version mismatch?)

warning: .dynamic section for "/lib/x86_64-linux-gnu/libblkid.so.1" is not at
the expected address (wrong library or version mismatch?)

warning: .dynamic section for "/lib/x86_64-linux-gnu/libgpg-error.so.0" is not
at the expected address (wrong library or version mismatch?)

warning: .dynamic section for "/lib/x86_64-linux-gnu/libuuid.so.1" is not at
the expected address (wrong library or version mismatch?)

warning: Could not load shared library symbols for
/lib/x86_64-linux-gnu/libgcrypt.so.20.
Do you need "set solib-search-path" or "set sysroot"?

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[Bug gdb/9645] GDB needs a --sysroot command line option

[palves at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=9645

--- Comment #5 from Pedro Alves <palves at redhat dot com> ---
Doesn't

 gdb -iex "set sysroot /whatever" -c chrome_S6_1594713950.core
/snap/chromium/1213/usr/lib/chromium-browser/chrome

work?

Is that really significally worse than:

 gdb --sysroot /whatever -c chrome_S6_1594713950.core
/snap/chromium/1213/usr/lib/chromium-browser/chrome

?

You'd just be saving a few keystrokes.

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[Bug gdb/9645] GDB needs a --sysroot command line option

[jg at jguk dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=9645

--- Comment #6 from Jonny Grant <jg at jguk dot org> ---
(In reply to Pedro Alves from comment #5)
> Doesn't
> 
>  gdb -iex "set sysroot /whatever" -c chrome_S6_1594713950.core
> /snap/chromium/1213/usr/lib/chromium-browser/chrome
> 
> work?
> 
> Is that really significally worse than:
> 
>  gdb --sysroot /whatever -c chrome_S6_1594713950.core
> /snap/chromium/1213/usr/lib/chromium-browser/chrome
> 
> ?
> 
> You'd just be saving a few keystrokes.

Maybe this could be documented in the GDB manual?

https://sourceware.org/gdb/current/onlinedocs/gdb/Invocation.html#Invocation

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