[PATCH] libdw: dwarf_getsrclines mark highest address as end_sequence.

Mark Wielaard mjw at redhat.com
Wed Mar 27 08:06:11 UTC 2013


On Tue, Mar 26, 2013 at 03:14:31PM -0700, Roland McGrath wrote:
> prologue_end is a quality issue, and in general it's a hard problem.
> end_sequence is a format correctness issue.  They're in different categories.

Yes, agreed in theory, if there were just missing or misplaced prologue_end
markers. But in practice GCC doesn't just omit prologue_end markers it
has uses a (fragile) way to indicate prologue ends by creating duplicate
rows for the same address. Which is a format correctness issue.

Cheers,

Mark


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