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Add operator< and operator== to linetable_entry

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This adds a couple of comparison operators to linetable_entry, and
simplifies both the calls to sort and one other spot that checks for
equality.

Approved-By: Simon Marchi <simon.marchi@efficios.com>
This commit is contained in:
Tom Tromey
2023-03-07 18:24:14 -07:00
parent 1afdbb1e98
commit 6e6ac32dde
4 changed files with 16 additions and 17 deletions
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14
gdb/buildsym.c
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@@ -891,25 +891,13 @@ buildsym_compunit::end_compunit_symtab_with_blockvector
{
if (!subfile->line_vector_entries.empty ())
{
const auto lte_is_less_than
= [] (const linetable_entry &ln1,
const linetable_entry &ln2) -> bool
{
if (ln1.pc == ln2.pc
&& ((ln1.line == 0) != (ln2.line == 0)))
return ln1.line == 0;
return (ln1.pc < ln2.pc);
};
/* Like the pending blocks, the line table may be scrambled
in reordered executables. Sort it. It is important to
preserve the order of lines at the same address, as this
maintains the inline function caller/callee
relationships, this is why std::stable_sort is used. */
std::stable_sort (subfile->line_vector_entries.begin (),
subfile->line_vector_entries.end (),
lte_is_less_than);
subfile->line_vector_entries.end ());
}
/* Allocate a symbol table if necessary. */