From: Tom Tromey <tromey@adacore.com>
To: Simon Marchi <simark@simark.ca>
Cc: Tom Tromey <tromey@adacore.com>, gdb-patches@sourceware.org
Subject: Re: [PATCH 5/6] Return void from buildsym_compunit::push_context
Date: Mon, 20 Apr 2026 08:11:45 -0600 [thread overview]
Message-ID: <875x5lsov2.fsf@tromey.com> (raw)
In-Reply-To: <bbf9b2c8-ad9a-4fc7-9c54-db40dae55f3d@simark.ca> (Simon Marchi's message of "Fri, 17 Apr 2026 16:22:22 -0400")
>>>>> "Simon" == Simon Marchi <simark@simark.ca> writes:
Simon> On 4/17/26 2:24 PM, Tom Tromey wrote:
>> diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
>> index 4447923ae3e..2a330655c48 100644
>> --- a/gdb/dwarf2/read.c
>> +++ b/gdb/dwarf2/read.c
>> @@ -7799,10 +7799,11 @@ read_func_scope (struct die_info *die, struct dwarf2_cu *cu)
>> }
>> }
>>
>> - gdb_assert (cu->get_builder () != nullptr);
>> - context_stack &ctx = cu->get_builder ()->push_context (lowpc);
>> + buildsym_compunit *builder = cu->get_builder ();
>> + gdb_assert (builder != nullptr);
>> + builder->push_context (lowpc);
>> symbol *func_sym = new_symbol (die, read_type_die (die, cu), cu, templ_func);
>> - ctx.name = func_sym;
>> + builder->set_current_context_function (func_sym);
Simon> It might be tricky depending on how new_symbol uses the current context
Simon> when reading a DW_TAG_subprogram, but I wonder if we could call
Simon> new_symbol first, then pass the resulting symbol to push_context. Then
Simon> we wouldn't need to have a setter. If that's possible, I think it would
Simon> be slightly better, because it would show that the symbol is initialized
Simon> when the context is pushed and can't change. Other callers of
Simon> push_context would pass a nullptr symbol.
I had looked at this when writing the patch but I concluded that this
wasn't possible because new_symbol calls add_symbol_to_list.
Ideally new_symbol would be removed and everything cleaned up. But
that's difficult.
Tom
next prev parent reply other threads:[~2026-04-20 14:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-17 18:24 [PATCH 0/6] Some buildsym cleanups Tom Tromey
2026-04-17 18:24 ` [PATCH 1/6] Use scoped_restore for dwarf2_cu::list_in_scope Tom Tromey
2026-04-17 18:24 ` [PATCH 2/6] Remove some dead code from buildsym.c Tom Tromey
2026-04-17 20:10 ` Simon Marchi
2026-04-20 14:19 ` Tom Tromey
2026-04-17 18:24 ` [PATCH 3/6] Remove context_stack::depth Tom Tromey
2026-04-17 18:24 ` [PATCH 4/6] Change pop_context to return a block Tom Tromey
2026-04-17 20:11 ` Simon Marchi
2026-04-20 14:09 ` Tom Tromey
2026-04-20 14:20 ` Tom Tromey
2026-04-17 18:24 ` [PATCH 5/6] Return void from buildsym_compunit::push_context Tom Tromey
2026-04-17 20:22 ` Simon Marchi
2026-04-20 14:11 ` Tom Tromey [this message]
2026-04-17 18:24 ` [PATCH 6/6] Rename context_stack and make it private Tom Tromey
2026-04-17 20:24 ` [PATCH 0/6] Some buildsym cleanups Simon Marchi
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