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From: "tromey at sourceware dot org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug breakpoints/13415] Invalid breakpoints when linking with
 --gc-sections
Date: Fri, 07 Jan 2022 21:54:42 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D13415

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
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                 CC|                            |tromey at sourceware dot o=
rg

--- Comment #8 from Tom Tromey <tromey at sourceware dot org> ---
I ran across this today.  Using --gc-sections can end up with a
line table entry with a pc=3D0x0.  gdb will try to set a breakpoint
here (or at some offset, I was seeing 0x8) -- but of course that doesn't
work.

One idea would be to silently drop such entries.  That's what gdb
normally does with pc=3D0 in the DWARF reader (except when there is
a section including that address).

Another idea would be to warn and then drop these when setting a breakpoint.
That might be friendlier since it would alert the user that something
weird is going on.

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