From nobody Wed Apr 2 13:33:35 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1742474662; cv=none; d=zohomail.com; s=zohoarc; b=Hys1FihYKBvJwI80tCYM3IDbW95FMRRhzAxyyJRinV5asvQ99KmquUu266xJkNEkEVJgTO5oNGVcd2mGOTj2zxUwh/3uF+v/nQ02DUSlCaOKdDVvABGknHaQNKBFZ/jFvF+SztJR4Of5bwEq/3d6bj4Gz+eZJ75sRtDXm2cSyt8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1742474662; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=RbdytaKQ23dTTwsiebcK7kqOQwF4p0uR0mRc1nL4Ub0=; b=hquV8FkPXQ7t8gcYnBjhEvEOFmvEXmcjNEjcAkAv4PfHXvXMw+tYTAwEshid7PuWxor3q508fk+RMyRbPUdPqIcEjUzmH4pw8qfq9a7NObk/LpLLa6jd7l8F3ClpM4J1y9ZEHkVEQ+qYiPPCyfsZj6r2FHiAQB0kB87YjYHekJA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1742474662486695.2943451183448; Thu, 20 Mar 2025 05:44:22 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tvFFD-0002FQ-AG; Thu, 20 Mar 2025 08:43:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tvFF3-0002Ek-Rx for qemu-devel@nongnu.org; Thu, 20 Mar 2025 08:43:21 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tvFF1-0005hL-Rh for qemu-devel@nongnu.org; Thu, 20 Mar 2025 08:43:21 -0400 Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-379-A-oY4BZyMMOo_XMLZOPwmg-1; Thu, 20 Mar 2025 08:43:16 -0400 Received: by mail-wr1-f70.google.com with SMTP id ffacd0b85a97d-391345e3aa3so423451f8f.0 for ; Thu, 20 Mar 2025 05:43:16 -0700 (PDT) Received: from [192.168.10.48] ([151.49.194.153]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-43d3ba44e63sm51875675e9.1.2025.03.20.05.43.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Mar 2025 05:43:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1742474598; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=RbdytaKQ23dTTwsiebcK7kqOQwF4p0uR0mRc1nL4Ub0=; b=CPvw3N5zXyUQNHFvQuNPFliT6duyD3gSyg5wSYL/WH7TcDTnZSUO2mj76ZdPsVrTVOrBWg gZM/pmmRHDQ0ZmcT8JSWvj0Vg9fWBBhOO0iNmiPU9K/WnNXm6SMkGrerizqnKzZvf9w0vg oOd68zyIRQpsv+Q2uPNMZSU4tge/zAs= X-MC-Unique: A-oY4BZyMMOo_XMLZOPwmg-1 X-Mimecast-MFC-AGG-ID: A-oY4BZyMMOo_XMLZOPwmg_1742474595 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742474595; x=1743079395; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=RbdytaKQ23dTTwsiebcK7kqOQwF4p0uR0mRc1nL4Ub0=; b=enJWzRznmMM1yhILeb12N5aHsuG3w9fcVAnnV1x2NumXOAI0Dze4SSY/4sZR9aq69G tagHzj7QQRybIGYvws+XsHwIHQA+I7mB5c9fOsV9M6Ap2g7Nd37GW1rcUE9SWg9Pp/OP YUZbEnmhQMRgOwFFn0AXsjy5Vp8UUG1Xxa8CzX061zKPeoUgInAZGHbHpZY77d3ZnA7U 7IxaMiEXBwDnML3XvPzUrullZexNnK6Y5BCwTlO+9UZt1ii5wb51U0u5TzItKCvTMCCH 7XKOD7R9SA+mXFwOKP5gR70AB7RCkt8A7BCRy50NJ/Hzlo7ZfFmO7uoasAlcWdYnw2yQ vSPA== X-Gm-Message-State: AOJu0YxtO0X3uOtlWtegx6JIdqVgkR3NgbUgH4YCKT5DhE5otfoXD4c2 JL+I1EqyKWk4vHf+Qavg3aVpAYeLJSLls4qrshltNHEV+LyxMA4IT7agn/M2tXYJUniQ+kpD1e2 V4gOWVOpOa5H6/YOZBIdb9uXTVPNxNDVVIaJcmKT4bvm9AVSs9meun0VM2aSSZgit+bWANMd6YC py8Od/RbEH8JiDun+cL3oupFJVb6mMzKShFDSh X-Gm-Gg: ASbGnctAglwSJq/XJ2EFImsb7/rIIyG3zB6qASoqR1ZqCmhPRFfhJ7l8tLO8QCEGegS QrA+xNS0ZxMnbS2m9xZ3N/Um7eGR6J3NMlBNGHTv1cSB/3aIzXrgFF2KgpKanYZN9nVWC+zayZj 737qDleNWY/jhH0oEMihERSMPNUOstbAzediN34ZSdwOm8UajB2NCw/sL4HATKmBbHg/XRxC3bi ymLK8+qfOhZ3RU4ch7HSPgyhR7d/4NMi/wU0r4gljOkbowmNbrVn1Oj/PoVgD6xPqR0LvTIjQRi ymUXbezB5XTJWQgmDKAB X-Received: by 2002:a05:6000:2b10:b0:391:39bd:a381 with SMTP id ffacd0b85a97d-399739de2eemr3816450f8f.30.1742474594810; Thu, 20 Mar 2025 05:43:14 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFOkSvTH/wlpJH8pNDOTfONqRzuN4KTPDl3W+b5fHHpOmtADTN4ERLUyrMjjd47wPDD080ZXA== X-Received: by 2002:a05:6000:2b10:b0:391:39bd:a381 with SMTP id ffacd0b85a97d-399739de2eemr3816436f8f.30.1742474594278; Thu, 20 Mar 2025 05:43:14 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: mark.cave-ayland@ilande.co.uk Subject: [PATCH] load_aout: replace bswap_needed with big_endian Date: Thu, 20 Mar 2025 13:43:13 +0100 Message-ID: <20250320124313.819222-1-pbonzini@redhat.com> X-Mailer: git-send-email 2.48.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.332, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1742474664058019000 Content-Type: text/plain; charset="utf-8" Targets know whether they are big-endian more than they know if the endianness is different from the host: the former is mostly a constant, at least in machine creation code, while the latter has to be computed with TARGET_BIG_ENDIAN !=3D HOST_BIG_ENDIAN or something like that. load_aout, however, takes a "bswap_needed" argument. Replace it with a "big_endian" argument; even though all users are big-endian, it is cheap enough to keep the optional swapping functionality even for little-endian boards. Signed-off-by: Paolo Bonzini Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Pierrick Bouvier --- include/hw/loader.h | 2 +- hw/core/loader.c | 4 ++-- hw/ppc/mac_newworld.c | 7 +------ hw/ppc/mac_oldworld.c | 7 +------ hw/sparc/sun4m.c | 9 +-------- hw/sparc64/sun4u.c | 9 +-------- 6 files changed, 7 insertions(+), 31 deletions(-) diff --git a/include/hw/loader.h b/include/hw/loader.h index 784a93d6c17..d280dc33e96 100644 --- a/include/hw/loader.h +++ b/include/hw/loader.h @@ -190,7 +190,7 @@ ssize_t load_elf(const char *filename, void load_elf_hdr(const char *filename, void *hdr, bool *is64, Error **err= p); =20 ssize_t load_aout(const char *filename, hwaddr addr, int max_sz, - int bswap_needed, hwaddr target_page_size); + bool big_endian, hwaddr target_page_size); =20 #define LOAD_UIMAGE_LOADADDR_INVALID (-1) =20 diff --git a/hw/core/loader.c b/hw/core/loader.c index ce6ff1b52e3..2e35f0aa905 100644 --- a/hw/core/loader.c +++ b/hw/core/loader.c @@ -226,7 +226,7 @@ static void bswap_ahdr(struct exec *e) =20 =20 ssize_t load_aout(const char *filename, hwaddr addr, int max_sz, - int bswap_needed, hwaddr target_page_size) + bool big_endian, hwaddr target_page_size) { int fd; ssize_t size, ret; @@ -241,7 +241,7 @@ ssize_t load_aout(const char *filename, hwaddr addr, in= t max_sz, if (size < 0) goto fail; =20 - if (bswap_needed) { + if (big_endian !=3D HOST_BIG_ENDIAN) { bswap_ahdr(&e); } =20 diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c index cb3dc3ab482..2d5309d6f55 100644 --- a/hw/ppc/mac_newworld.c +++ b/hw/ppc/mac_newworld.c @@ -197,11 +197,6 @@ static void ppc_core99_init(MachineState *machine) } =20 if (machine->kernel_filename) { - int bswap_needed =3D 0; - -#ifdef BSWAP_NEEDED - bswap_needed =3D 1; -#endif kernel_base =3D KERNEL_LOAD_ADDR; kernel_size =3D load_elf(machine->kernel_filename, NULL, translate_kernel_address, NULL, NULL, NULL, @@ -209,7 +204,7 @@ static void ppc_core99_init(MachineState *machine) if (kernel_size < 0) { kernel_size =3D load_aout(machine->kernel_filename, kernel_bas= e, machine->ram_size - kernel_base, - bswap_needed, TARGET_PAGE_SIZE); + true, TARGET_PAGE_SIZE); } if (kernel_size < 0) { kernel_size =3D load_image_targphys(machine->kernel_filename, diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c index 0dbcea035c3..b5814690f5a 100644 --- a/hw/ppc/mac_oldworld.c +++ b/hw/ppc/mac_oldworld.c @@ -153,11 +153,6 @@ static void ppc_heathrow_init(MachineState *machine) } =20 if (machine->kernel_filename) { - int bswap_needed =3D 0; - -#ifdef BSWAP_NEEDED - bswap_needed =3D 1; -#endif kernel_base =3D KERNEL_LOAD_ADDR; kernel_size =3D load_elf(machine->kernel_filename, NULL, translate_kernel_address, NULL, NULL, NULL, @@ -165,7 +160,7 @@ static void ppc_heathrow_init(MachineState *machine) if (kernel_size < 0) { kernel_size =3D load_aout(machine->kernel_filename, kernel_bas= e, machine->ram_size - kernel_base, - bswap_needed, TARGET_PAGE_SIZE); + true, TARGET_PAGE_SIZE); } if (kernel_size < 0) { kernel_size =3D load_image_targphys(machine->kernel_filename, diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c index a48d3622c5a..5aaafb40dac 100644 --- a/hw/sparc/sun4m.c +++ b/hw/sparc/sun4m.c @@ -233,20 +233,13 @@ static unsigned long sun4m_load_kernel(const char *ke= rnel_filename, =20 kernel_size =3D 0; if (linux_boot) { - int bswap_needed; - -#ifdef BSWAP_NEEDED - bswap_needed =3D 1; -#else - bswap_needed =3D 0; -#endif kernel_size =3D load_elf(kernel_filename, NULL, translate_kernel_address, NULL, NULL, NULL, NULL, NULL, ELFDATA2MSB, EM_SPARC, 0, 0); if (kernel_size < 0) kernel_size =3D load_aout(kernel_filename, KERNEL_LOAD_ADDR, - RAM_size - KERNEL_LOAD_ADDR, bswap_nee= ded, + RAM_size - KERNEL_LOAD_ADDR, true, TARGET_PAGE_SIZE); if (kernel_size < 0) kernel_size =3D load_image_targphys(kernel_filename, diff --git a/hw/sparc64/sun4u.c b/hw/sparc64/sun4u.c index 8ab5cf0461f..d3cb7270ff5 100644 --- a/hw/sparc64/sun4u.c +++ b/hw/sparc64/sun4u.c @@ -168,13 +168,6 @@ static uint64_t sun4u_load_kernel(const char *kernel_f= ilename, =20 kernel_size =3D 0; if (linux_boot) { - int bswap_needed; - -#ifdef BSWAP_NEEDED - bswap_needed =3D 1; -#else - bswap_needed =3D 0; -#endif kernel_size =3D load_elf(kernel_filename, NULL, NULL, NULL, kernel= _entry, kernel_addr, &kernel_top, NULL, ELFDATA2MSB, EM_SPARCV9, 0, 0); @@ -182,7 +175,7 @@ static uint64_t sun4u_load_kernel(const char *kernel_fi= lename, *kernel_addr =3D KERNEL_LOAD_ADDR; *kernel_entry =3D KERNEL_LOAD_ADDR; kernel_size =3D load_aout(kernel_filename, KERNEL_LOAD_ADDR, - RAM_size - KERNEL_LOAD_ADDR, bswap_nee= ded, + RAM_size - KERNEL_LOAD_ADDR, true, TARGET_PAGE_SIZE); } if (kernel_size < 0) { --=20 2.48.1