From nobody Thu Apr 9 23:23:25 2026 Received: from mail-wm1-f73.google.com (mail-wm1-f73.google.com [209.85.128.73]) (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 061F03E1224 for ; Thu, 5 Mar 2026 16:54:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772729681; cv=none; b=iwamu4QG1oIOrQzOgiaueBMLZtu17qHBwSVLoizjWzlxK881m0pRpJ/q2+i/BBsdoaADRB1nn7bd09SzczXzpQTIishyjGe4YMeZcM2ig7BXrel/9wn3XSMD1w7jDTxFYinxL89SFRj9jxRScevWCaeLHWmuvOYt+49JrWx8SfQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772729681; c=relaxed/simple; bh=8wThas+yx6VNeitZlqkk+kXKQX1pW5KK15IT5W2pzHQ=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=DFl/lm09Utw/sPztQUNWHgk5HvagTGpB++1YsczRnkTXg7U/UL5qcxXxTyyEvmqKFPdQqIauXIZv1Nnxxqzzw7gULux+X9CVseqHd1TKYQ6H2IWA58fHAmpWLonZfduiQcN1xnClkHuF8veTWecM3YFm/7vo0vIMff2OUEG20IM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--sidnayyar.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=zvmx1IpI; arc=none smtp.client-ip=209.85.128.73 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--sidnayyar.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="zvmx1IpI" Received: by mail-wm1-f73.google.com with SMTP id 5b1f17b1804b1-4836b7c302fso83507915e9.1 for ; Thu, 05 Mar 2026 08:54:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1772729674; x=1773334474; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=SFGOKKmdozaG9322AXfBKix4rJQP+3sKTD6zVfi8C3I=; b=zvmx1IpI7nado72UsjjXdZvSHZfw4yt+2GZdT6YaJK3IPas3AXd3nWACJQmvMIN60R rj1fv2aMSshDBQ3/72gu0bHwjQfoYMTS6hFblTdKTAW3w5ZhiRR2rNHatBoXip9njWY+ /2hVbHFDGaQ0lRc2IeLom1c1DqtafCzl2VVvKky4oZCbdtij775/NUOU2RwVr22Q1Z4n 0qN5JAkcikrJxK7u0gs2LtCnMrRGa1hhnatCXYXs85ZsjentBTV3T+jIr/mcMoGwJHFw WDhPIRu0p2eq5Jandckz7yWdxEr3o8prGwx/kacYUg+kBh1It9fGRAwNYRb2XbylKwQn H4HQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772729674; x=1773334474; 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=SFGOKKmdozaG9322AXfBKix4rJQP+3sKTD6zVfi8C3I=; b=lxbPB4jxxYw9aYBD9VVZGFuVTf3VrkaSLex12ReIe1KlkNW/p+38ACsUTry40L5rIw WCh5lYplvQIcMmLukChA2avz0hrSkW5fb+kDReaVGiH3iF0Yu0XfxqajVwMZKN0MThli 8lynqBwiOQgUhyOwSC4D4dpc9OmGW61kCAoHCQxuOasdcw1k758CmiV8gVQE/FXctN89 T8EpvDLD0qTFnUb4VOKBCEHoLhzqvLggZ2/BncJ6Ix1J3jjgEkyHZS4m2wuuhZRqo+LZ zmvYQqXGk91kombovRQKgA30xWJHSUJOHs5P4mW2lnU28Ck290lQbzDg0dfKuiuhtH8b z6eA== X-Forwarded-Encrypted: i=1; AJvYcCXX7/o+XXR9zGZGyP0KYiIOI/MNjzhcPbOoOyTFxNWAV8krtCtUXAB5UI8YtCpnNpj0zQ92dnbUCR8Ax20=@vger.kernel.org X-Gm-Message-State: AOJu0YzBYN9h/Li5CaoO0W15NXRbMoNPeFOyBEmZ0IKpkulrrAkSzG7f Ukf3xGET1J4ob2Sv6pgcv6E9Nksn/jy7fazZnAtRTz1D9iDQ5yYKuRK3cKHvmnl4mkvcTg/Sy1K WaTBYxJ6Dbp+Fh8OVBQ== X-Received: from wmat14.prod.google.com ([2002:a05:600c:6d0e:b0:480:2e46:31e1]) (user=sidnayyar job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:8b67:b0:480:2521:4d92 with SMTP id 5b1f17b1804b1-4851989ca05mr112546655e9.24.1772729674165; Thu, 05 Mar 2026 08:54:34 -0800 (PST) Date: Thu, 05 Mar 2026 16:54:25 +0000 In-Reply-To: <20260305-kflagstab-v4-0-4fe6eea27e30@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260305-kflagstab-v4-0-4fe6eea27e30@google.com> X-Mailer: b4 0.14.3 Message-ID: <20260305-kflagstab-v4-5-4fe6eea27e30@google.com> Subject: [PATCH v4 5/8] modpost: remove fragmentation of ksymtab and kcrctab sections From: Siddharth Nayyar To: Luis Chamberlain , Petr Pavlu , Daniel Gomez , Sami Tolvanen , Aaron Tomlin , Arnd Bergmann , Nathan Chancellor , Nicolas Schier , Jonathan Corbet , Shuah Khan Cc: linux-modules@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-doc@vger.kernel.org, Siddharth Nayyar , maennich@google.com, gprocida@google.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Since the modules loader determines whether an exported symbol is GPL only from data in the kflagstab section, modpost can put all symbols in the regular ksymtab and stop using the *_gpl versions of the ksymtab and kcrctab. Signed-off-by: Siddharth Nayyar --- include/linux/export-internal.h | 21 +++++++++++---------- scripts/mod/modpost.c | 8 ++++---- 2 files changed, 15 insertions(+), 14 deletions(-) diff --git a/include/linux/export-internal.h b/include/linux/export-interna= l.h index 4123c7592404..726054614752 100644 --- a/include/linux/export-internal.h +++ b/include/linux/export-internal.h @@ -37,14 +37,14 @@ * section flag requires it. Use '%progbits' instead of '@progbits' since = the * former apparently works on all arches according to the binutils source. */ -#define __KSYMTAB(name, sym, sec, ns) \ +#define __KSYMTAB(name, sym, ns) \ asm(" .section \"__ksymtab_strings\",\"aMS\",%progbits,1" "\n" \ "__kstrtab_" #name ":" "\n" \ " .asciz \"" #name "\"" "\n" \ "__kstrtabns_" #name ":" "\n" \ " .asciz \"" ns "\"" "\n" \ " .previous" "\n" \ - " .section \"___ksymtab" sec "+" #name "\", \"a\"" "\n" \ + " .section \"___ksymtab+" #name "\", \"a\"" "\n" \ __KSYM_ALIGN "\n" \ "__ksymtab_" #name ":" "\n" \ __KSYM_REF(sym) "\n" \ @@ -59,15 +59,16 @@ #define KSYM_FUNC(name) name #endif =20 -#define KSYMTAB_FUNC(name, sec, ns) __KSYMTAB(name, KSYM_FUNC(name), sec, = ns) -#define KSYMTAB_DATA(name, sec, ns) __KSYMTAB(name, name, sec, ns) +#define KSYMTAB_FUNC(name, ns) __KSYMTAB(name, KSYM_FUNC(name), ns) +#define KSYMTAB_DATA(name, ns) __KSYMTAB(name, name, ns) =20 -#define SYMBOL_CRC(sym, crc, sec) \ - asm(".section \"___kcrctab" sec "+" #sym "\",\"a\"" "\n" \ - ".balign 4" "\n" \ - "__crc_" #sym ":" "\n" \ - ".long " #crc "\n" \ - ".previous" "\n") +#define SYMBOL_CRC(sym, crc) \ + asm(" .section \"___kcrctab+" #sym "\",\"a\"" "\n" \ + " .balign 4" "\n" \ + "__crc_" #sym ":" "\n" \ + " .long " #crc "\n" \ + " .previous" "\n" \ + ) =20 #define SYMBOL_FLAGS(sym, flags) \ asm(" .section \"___kflagstab+" #sym "\",\"a\"" "\n" \ diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 1d721fe67caf..9d96acce60a8 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1876,9 +1876,9 @@ static void add_exported_symbols(struct buffer *buf, = struct module *mod) if (trim_unused_exports && !sym->used) continue; =20 - buf_printf(buf, "KSYMTAB_%s(%s, \"%s\", \"%s\");\n", + buf_printf(buf, "KSYMTAB_%s(%s, \"%s\");\n", sym->is_func ? "FUNC" : "DATA", sym->name, - sym->is_gpl_only ? "_gpl" : "", sym->namespace); + sym->namespace); =20 buf_printf(buf, "SYMBOL_FLAGS(%s, 0x%02x);\n", sym->name, get_symbol_flags(sym)); @@ -1899,8 +1899,8 @@ static void add_exported_symbols(struct buffer *buf, = struct module *mod) sym->name, mod->name, mod->is_vmlinux ? "" : ".ko", sym->name); =20 - buf_printf(buf, "SYMBOL_CRC(%s, 0x%08x, \"%s\");\n", - sym->name, sym->crc, sym->is_gpl_only ? "_gpl" : ""); + buf_printf(buf, "SYMBOL_CRC(%s, 0x%08x);\n", + sym->name, sym->crc); } } =20 --=20 2.53.0.473.g4a7958ca14-goog