From nobody Tue Feb 10 01:20:11 2026 Received: from out0-209.mail.aliyun.com (out0-209.mail.aliyun.com [140.205.0.209]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2A8007E792 for ; Tue, 23 Apr 2024 11:25:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=140.205.0.209 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713871524; cv=none; b=N5YPlr37KZmnMH3IHxNiwt/q00Lsfkd8taCVRSdmJvDULmisAvhxfpo9olb9C+mePQd8jnDPAml0bXykfCB/v5DRtMpO6zcfqAOSWmBgxW3OP6hVAtMBNCw97RUbZCBBIULV0zOiIP/NS831wwesIRBgGlYQIMnnie1MeY0X/S8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713871524; c=relaxed/simple; bh=ByGcHN025QjVD6T/SJkG5sopwNFERynJs9leJtwY110=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=AuIRLKboLOGm0T67G+M5KVf+Kcza/3MWDywTMwpGKOKSXDJNNyZEu9ljsezFPCqNRWhNKaPAeLolY+QcgontYD9ZEjMgbjx8e4venWbkVwCKDm+irgb6uWHfdhnLs5OlNLsDEKesM207sLy/485VaPiVsyuUfMg5goS1c+OwVVU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=antgroup.com; spf=pass smtp.mailfrom=antgroup.com; dkim=pass (1024-bit key) header.d=antgroup.com header.i=@antgroup.com header.b=WLc+f0Xw; arc=none smtp.client-ip=140.205.0.209 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=antgroup.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=antgroup.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=antgroup.com header.i=@antgroup.com header.b="WLc+f0Xw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=antgroup.com; s=default; t=1713871514; h=From:To:Subject:Date:Message-Id:MIME-Version:Content-Type; bh=f+7Dfcyc7ewnae17/TPs5HjFgj4pirZ9MfZiM8UFc54=; b=WLc+f0Xw7960Z1pHEPCoPQI+pbvtscvzUPc6zX+H9tGwQxHrrP16B8G6YBoRsMgILMB/DjhVwPDdDjNyeZ+S3nId+LpVlz43/OnuNqLhKoGDurb48Nw6YWJ2xmflF3apZs9njzw9CizTW7+JXj1FimkOrYkEnGpwsw1fINj93P4= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R571e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018047211;MF=tiwei.btw@antgroup.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---.XJTUYi3_1713871513; Received: from ubuntu..(mailfrom:tiwei.btw@antgroup.com fp:SMTPD_---.XJTUYi3_1713871513) by smtp.aliyun-inc.com; Tue, 23 Apr 2024 19:25:13 +0800 From: "Tiwei Bie" To: richard@nod.at, anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net Cc: , , "Tiwei Bie" Subject: [PATCH 5/7] um: Add an internal header shared among the user code Date: Tue, 23 Apr 2024 19:24:55 +0800 Message-Id: <20240423112457.2409319-6-tiwei.btw@antgroup.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240423112457.2409319-1-tiwei.btw@antgroup.com> References: <20240423112457.2409319-1-tiwei.btw@antgroup.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Move relevant declarations to this header. This will address below -Wmissing-prototypes warnings: arch/um/os-Linux/elf_aux.c:26:13: warning: no previous prototype for =E2=80= =98scan_elf_aux=E2=80=99 [-Wmissing-prototypes] arch/um/os-Linux/mem.c:213:13: warning: no previous prototype for =E2=80=98= check_tmpexec=E2=80=99 [-Wmissing-prototypes] arch/um/os-Linux/skas/process.c:107:6: warning: no previous prototype for = =E2=80=98wait_stub_done=E2=80=99 [-Wmissing-prototypes] Signed-off-by: Tiwei Bie --- arch/um/os-Linux/internal.h | 20 ++++++++++++++++++++ arch/um/os-Linux/main.c | 2 -- arch/um/os-Linux/skas/mem.c | 2 -- arch/um/os-Linux/start_up.c | 2 -- arch/um/scripts/Makefile.rules | 3 ++- 5 files changed, 22 insertions(+), 7 deletions(-) create mode 100644 arch/um/os-Linux/internal.h diff --git a/arch/um/os-Linux/internal.h b/arch/um/os-Linux/internal.h new file mode 100644 index 000000000000..2a0ea7853658 --- /dev/null +++ b/arch/um/os-Linux/internal.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __UM_OS_LINUX_INTERNAL_H +#define __UM_OS_LINUX_INTERNAL_H + +/* + * elf_aux.c + */ +extern void scan_elf_aux(char **envp); + +/* + * mem.c + */ +extern void check_tmpexec(void); + +/* + * skas/process.c + */ +extern void wait_stub_done(int pid); + +#endif /* __UM_OS_LINUX_INTERNAL_H */ diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c index e82164f90288..9880cfcb9b8a 100644 --- a/arch/um/os-Linux/main.c +++ b/arch/um/os-Linux/main.c @@ -102,8 +102,6 @@ static void setup_env_path(void) } } =20 -extern void scan_elf_aux( char **envp); - int __init main(int argc, char **argv, char **envp) { char **new_argv; diff --git a/arch/um/os-Linux/skas/mem.c b/arch/um/os-Linux/skas/mem.c index 953fb10f3f93..1b0502fb5c75 100644 --- a/arch/um/os-Linux/skas/mem.c +++ b/arch/um/os-Linux/skas/mem.c @@ -20,8 +20,6 @@ =20 extern char batch_syscall_stub[], __syscall_stub_start[]; =20 -extern void wait_stub_done(int pid); - static inline unsigned long *check_init_stack(struct mm_id * mm_idp, unsigned long *stack) { diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index 6b21061c431c..f920c837428e 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -222,8 +222,6 @@ static void __init check_ptrace(void) check_sysemu(); } =20 -extern void check_tmpexec(void); - static void __init check_coredump_limit(void) { struct rlimit lim; diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules index a8b7d9dab0a6..b8ea5f3bb1fb 100644 --- a/arch/um/scripts/Makefile.rules +++ b/arch/um/scripts/Makefile.rules @@ -9,7 +9,8 @@ USER_OBJS +=3D $(filter %_user.o,$(obj-y) $(USER_SINGLE_OBJ= S)) USER_OBJS :=3D $(foreach file,$(USER_OBJS),$(obj)/$(file)) =20 $(USER_OBJS:.o=3D.%): \ - c_flags =3D -Wp,-MD,$(depfile) $(USER_CFLAGS) -include $(srctree)/include= /linux/kern_levels.h -include user.h $(CFLAGS_$(basetarget).o) + c_flags =3D -Wp,-MD,$(depfile) $(USER_CFLAGS) -include $(srctree)/include= /linux/kern_levels.h \ + -include user.h -include $(srctree)/arch/um/os-Linux/internal.h $(CFLAGS= _$(basetarget).o) =20 # These are like USER_OBJS but filter USER_CFLAGS through unprofile instea= d of # using it directly. --=20 2.34.1