From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f202.google.com (mail-pf1-f202.google.com [209.85.210.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 24A481A2C24 for ; Mon, 23 Sep 2024 18:19:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727115564; cv=none; b=aqqiPt1dEqSDzn5bmlD8CGrTuMuTrNEpc6s5lk37I8GcZoMCe+nWp4LD5oSHg6sWb/cIyHgu7ZmY/3yvjv/pP2oxI+L6xc3mcBW+QbPFYhBkjNONBnUUM3f6iiDD74FdwiR3yNdKmbQyw9x0vxjO6BNWQgMpHE0svE12ler+B5A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727115564; c=relaxed/simple; bh=Ot9dZ9VGfijBFpNN4l2sas7HxFqkXH4N4SfK0aRWMN8=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=b4t8Ytv3nYxcU3erkTvoIsISDHrVG1x5bw4NnYmhJ9XD/hdz6j/5JyGroexKEfOzDnBH11EPZw3u0f8MNDPBY++eIM0BKlX+sKqvSu2HgT3qcLRaiGrP3sghYalJz6TPwsw9HAG0R2QBsFXxzPrTgX0aDn+TbltGt8eSvY3N5fg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--samitolvanen.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=X3JnZZSe; arc=none smtp.client-ip=209.85.210.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--samitolvanen.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="X3JnZZSe" Received: by mail-pf1-f202.google.com with SMTP id d2e1a72fcca58-71985781cbdso4329920b3a.3 for ; Mon, 23 Sep 2024 11:19:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1727115562; x=1727720362; darn=lists.linux.dev; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=oaCRsbnNWrRaFere+ELhrZId4GCv9+17KXmOqdHXVow=; b=X3JnZZSeMRrL1NshHXC3isvMSDgSrU4BXIjkiIf96mDozvgBjxnjhKKJ4hLCRATJc+ SZWcaoSGOb09nBHtMOt9L/tzx1x7N8OsNl048Q5d/mfjAQk36+euw2qjmvO9XLsE+IMs Ktia4wlR96aUVVMSDVgQtcFCG4blAcwzgLIUVlZDj+0Ts/wZVfmIDKondihnCrzr3/Mb Ui/yk/WIZSNEAkB/vrHe/F/ekDwKqC5He9xv2KmGO3mhbKQXomdFBtKLnMJoAligAeRY vuYZosYPdktflOC2MWC1QYhSNobKLn1pZV1vE53p1wdaV8ZquxobpMM9SHfgBZxWa+6l VqdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727115562; x=1727720362; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=oaCRsbnNWrRaFere+ELhrZId4GCv9+17KXmOqdHXVow=; b=Z8CsYLo2Aedi4KBdKuqL36hC5ZG1hhiZUiKo6U59eLHAv/zLzs+ha8xO83Z5LxkleO IDWgl5rB11SnpQGU+rVWLnqi5chY+F8GeAsLpEyCNwmdrcmesrjO3bMBOFxwgdaJH6JH /7a4rN/iUgpaq6Qpp6K28aVCyqJtLZPH9uFbdNx1NEeHxbl/3ZBozTtqDepRF2XhtaR5 JV+UqKUYTMFtiqC4EKygYNdCIU9O5CokVB+vvPJydXY0a9jOXu3A/Rw8oHH9O2jXedpn fG5+j0njbs4BKFuvz6PmRIdmZXT8AzbWxx2KO4nzVszEWzz5YwYI5wIfSdyDGiBjKP6J fY9Q== X-Forwarded-Encrypted: i=1; AJvYcCWeRR8vZM4rNZ5pqfVMKf0m+k9GeWZij07JHj7O5GSd8OloR++rY/nzSjW+azpjjJRwLitfVw==@lists.linux.dev X-Gm-Message-State: AOJu0YwjiXaTW+BOqEl0dayc3NkDEkuq6MOiSwpib9NLtnNb6PcTL9FU 9t1rO8OSMPqh446LenS5jyULR3jNuxAxjFQd7Eis3a1EAagFNpqiNnd6BYR2Y6w4R2yRE7pmh4p mtxkKYQ7glWs3yrSW4UYBI2Ue3g== X-Google-Smtp-Source: AGHT+IGgYP6fjgneZDlNtYZaBPXV084hh6eLWrDiE/RaKFs2xYRWbrbifhbSENhjTwFTncb+Fjv3BWnlVd6hjI5gp8c= X-Received: from samitolvanen.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:4f92]) (user=samitolvanen job=sendgmr) by 2002:a05:6a00:6f5b:b0:70d:1285:bbcf with SMTP id d2e1a72fcca58-7199c6ed0f8mr16986b3a.0.1727115562282; Mon, 23 Sep 2024 11:19:22 -0700 (PDT) Date: Mon, 23 Sep 2024 18:18:55 +0000 In-Reply-To: <20240923181846.549877-22-samitolvanen@google.com> Precedence: bulk X-Mailing-List: asahi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240923181846.549877-22-samitolvanen@google.com> X-Developer-Key: i=samitolvanen@google.com; a=openpgp; fpr=35CCFB63B283D6D3AEB783944CB5F6848BBC56EE X-Developer-Signature: v=1; a=openpgp-sha256; l=2253; i=samitolvanen@google.com; h=from:subject; bh=Ot9dZ9VGfijBFpNN4l2sas7HxFqkXH4N4SfK0aRWMN8=; b=owGbwMvMwCEWxa662nLh8irG02pJDGkfN3KZH3u4/t3F3Van9p6MPLvruFdScYyw8bOVUY+Nc 8zP+ya7d5SyMIhxMMiKKbK0fF29dfd3p9RXn4skYOawMoEMYeDiFICJpLMwMqwqD84o0jhZrtu9 RKqm3jYi/vwblu7Ds/hX3DQUOn/PfgUjQ0Orx6O0KUtk326tsF38Y4XT0YrEN4tPrzZgqtm2ybX iERMA X-Mailer: git-send-email 2.46.0.792.g87dc391469-goog Message-ID: <20240923181846.549877-31-samitolvanen@google.com> Subject: [PATCH v3 09/20] gendwarfksyms: Expand array_type From: Sami Tolvanen To: Masahiro Yamada , Luis Chamberlain , Miguel Ojeda , Greg Kroah-Hartman Cc: Matthew Maurer , Alex Gaynor , Wedson Almeida Filho , Gary Guo , Petr Pavlu , Neal Gompa , Hector Martin , Janne Grunau , Miroslav Benes , Asahi Linux , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-modules@vger.kernel.org, rust-for-linux@vger.kernel.org, Sami Tolvanen Content-Type: text/plain; charset="UTF-8" Add support for expanding DW_TAG_array_type, and the subrange type indicating array size. Example source code: const char *s[34]; Output with --dump-dies: variable array_type[34] { pointer_type { const_type { base_type char byte_size(1) encoding(6) } } byte_size(8) } Signed-off-by: Sami Tolvanen --- scripts/gendwarfksyms/dwarf.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/scripts/gendwarfksyms/dwarf.c b/scripts/gendwarfksyms/dwarf.c index 5bdab5b80ca2..caf25da0a9b9 100644 --- a/scripts/gendwarfksyms/dwarf.c +++ b/scripts/gendwarfksyms/dwarf.c @@ -217,6 +217,7 @@ DEFINE_PROCESS_UDATA_ATTRIBUTE(encoding) } DEFINE_MATCH(formal_parameter) +DEFINE_MATCH(subrange) bool match_all(Dwarf_Die *die) { @@ -339,6 +340,33 @@ DEFINE_PROCESS_TYPE(shared) DEFINE_PROCESS_TYPE(volatile) DEFINE_PROCESS_TYPE(typedef) +static void process_subrange_type(struct state *state, struct die *cache, + Dwarf_Die *die) +{ + Dwarf_Word count = 0; + + if (get_udata_attr(die, DW_AT_count, &count)) + process_fmt(cache, "[%" PRIu64 "]", count); + else if (get_udata_attr(die, DW_AT_upper_bound, &count)) + process_fmt(cache, "[%" PRIu64 "]", count + 1); + else + process(cache, "[]"); +} + +static void process_array_type(struct state *state, struct die *cache, + Dwarf_Die *die) +{ + process(cache, "array_type"); + /* Array size */ + check(process_die_container(state, cache, die, process_type, + match_subrange_type)); + process(cache, " {"); + process_linebreak(cache, 1); + process_type_attr(state, cache, die); + process_linebreak(cache, -1); + process(cache, "}"); +} + static void __process_subroutine_type(struct state *state, struct die *cache, Dwarf_Die *die, const char *type) { @@ -434,7 +462,9 @@ static int process_type(struct state *state, struct die *parent, Dwarf_Die *die) PROCESS_TYPE(volatile) /* Subtypes */ PROCESS_TYPE(formal_parameter) + PROCESS_TYPE(subrange) /* Other types */ + PROCESS_TYPE(array) PROCESS_TYPE(base) PROCESS_TYPE(subroutine) PROCESS_TYPE(typedef) -- 2.46.0.792.g87dc391469-goog