[PATCH] gold: fix crash for empty file

[Martin Liška]

PING^2

On 11/29/21 10:00, Martin Liška wrote:
> PING^1
> 
> On 11/19/21 15:01, Martin Liška wrote:
>> Hi.
>>
>> The patch fixes a crash I noticed and explained in the linked PR.
>>
>> Patch survives regression tests.
>>
>> Ready to be installed?
>> Thanks,
>> Martin
>>
>> gold/ChangeLog:
>>
>>      PR 28585
>>      * symtab.cc (Symbol_table::lookup): Return NULL for NULL
>>      argument.
>> ---
>>   gold/symtab.cc | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/gold/symtab.cc b/gold/symtab.cc
>> index 5a21ddc8cc2..ed6b5434592 100644
>> --- a/gold/symtab.cc
>> +++ b/gold/symtab.cc
>> @@ -701,6 +701,8 @@ Symbol_table::resolve_forwards(const Symbol* from) const
>>   Symbol*
>>   Symbol_table::lookup(const char* name, const char* version) const
>>   {
>> +  if (name == NULL)
>> +    return NULL;
>>     Stringpool::Key name_key;
>>     name = this->namepool_.find(name, &name_key);
>>     if (name == NULL)
>