From: Dave Kleikamp <[email protected]> Date: Wed, 11 Jan 2017 13:25:00 -0600
> If the last section of a core file ends with an unmapped or zero page, > the size of the file does not correspond with the last dump_skip() call. > gdb complains that the file is truncated and can be confusing to users. > > After all of the vma sections are written, make sure that the file size > is no smaller than the current file position. > > This problem can be demonstrated with gdb's bigcore testcase on the > sparc architecture. > > Signed-off-by: Dave Kleikamp <[email protected]> The lseek() done by dump_skip() should extend the file properly. Otherwise, everyone would be seeing this problem. That test case passed all the time when I was last running the GDB testsuite all the time on sparc64, say 5 years ago.
