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Clarify purpose of assert in _dl_lookup_symbol_x

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Only one of the currently defined flags is incompatible with versioned
symbol lookups, so it makes sense to check for that flag and not its
complement.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com>
Change-Id: I3384349cef90cfd91862ebc34a4053f0c0a99404
This commit is contained in:
Florian Weimer 2019-10-31 13:28:26 +01:00
parent b9f145df85
commit ca136bb0a3
1 changed files with 3 additions and 5 deletions
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8
elf/dl-lookup.c
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@ -792,11 +792,9 @@ _dl_lookup_symbol_x (const char *undef_name, struct link_map *undef_map,
bump_num_relocations ();
/* No other flag than DL_LOOKUP_ADD_DEPENDENCY or DL_LOOKUP_GSCOPE_LOCK
is allowed if we look up a versioned symbol. */
assert (version == NULL
|| (flags & ~(DL_LOOKUP_ADD_DEPENDENCY | DL_LOOKUP_GSCOPE_LOCK))
== 0);
/* DL_LOOKUP_RETURN_NEWEST does not make sense for versioned
lookups. */
assert (version == NULL || !(flags & DL_LOOKUP_RETURN_NEWEST));
size_t i = 0;
if (__glibc_unlikely (skip_map != NULL))