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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4361ec75410sm22742245e9.1.2024.12.11.15.04.08 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 11 Dec 2024 15:04:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1733958249; x=1734563049; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=KujEMlgf4sTtMREgvgm8kU4qI7hcBzQ7iBZYjiigW3U=; b=ehh76pDGgXM8krjWCraj4aZE3l+G3tJjdHms0Krkpg4Z2AmG2w1Euu3jAIHJfyio7Y H6x6XcItkMMWOkE4njc6fWdMXR6APW7YmCDLO1lAPQacUKy0/xqnvm8nEmU1t9xh8X0O nPsy6XCqimhDT68/bIpNDKw3kAIXIGITs8SFLdCEp28/Cen/OFQkJfKlhZzjT7iTogkS VkAodSjoK87YCo5TVoMgB8X4poR8jlX4Y7ipDTWt1QEZfqjk4fqWy1KaR6gLrcycnvC/ 52BRulV/gpxdDv2TL+9Hfv2uYDf42E7YXVfTe/xHCVe8AkA3uydKMpl5E2FP/QyvXUJv 9HIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733958249; x=1734563049; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=KujEMlgf4sTtMREgvgm8kU4qI7hcBzQ7iBZYjiigW3U=; b=j/sbo7Zgn5R8IZl0NOsPpMgIWpdfUpNpv7vIpjMeS75amlCfzLkMe7JfQqHoHXJsFd UBAOwzVLEIIQmZSTwGcnVPYHNbIgu7I1BXWElkGOaW5E9y4RzM0pjXYUEz2/NCO9Uqr5 V0+dTL6GXQGd0Fz9bWcTNz7XWQ+1eS0jyrXDkDFyq7Aa7OByZdZxGfBECliMnxrBB6NZ e6fOYhP+Fajyrhc1fvRsJR13OXpvnghzsGuYTeWvzcclRxtWFQuJ11F4AONbylV8CKTC iFHFsGA8DPCgzdeWCrdZ2t6A9alBQy75O9gBGzjnf8NZKKMg/GKiR1pnw49XHHfLfeA1 NuIg== X-Gm-Message-State: AOJu0Yw8ad8M5YOIoT4szE7uqDAcyPO5bk47JcUkmYEwdRIS43a3iilA G9MqtCzjlF1/Q0CXmL7/L3WxqFlFb8cI3ItkFA2278T4sOjJl5dDzds2fpY2eH3ZJyBTsdJU4wj J X-Gm-Gg: ASbGncuFy2VyG+MX1cvEtAMhQ7BLtnmtmezV22B26wgvlQaNp+P/IXbi0v55Hs8rSJ8 M8r9W/X0TS1y6IyKH3Ivvu1rdPJWS9JtzZdpieEStZ5pIRqQhiro/TrFGZ6FWUShRnkedC80JmY DEU7GxyQzLesgEWF59nK3EXSupQUXc0i/q7pT7h226THb5A3oaQrqGjYwOdFtZHjxo9ymaSvgXX VizBED/4Wi2EJHUDAO46jwuN9bCS565y8NVHM1gY4FnAvztbP0mzr4PSrM4bhhEZONlXL6eOgq1 4jzl0LTzW7wygNrzrQRjRXyICbsuw/KXnw== X-Google-Smtp-Source: AGHT+IGpwgPFHStTPt9kR8GQ8LspXiu9RplHxeBHemwtjTDX9Po+JLjAVa+bSKV6l4RW6UhjLeW7Jg== X-Received: by 2002:a05:600c:5104:b0:42c:c28c:e477 with SMTP id 5b1f17b1804b1-4362286383amr10729675e9.23.1733958249569; Wed, 11 Dec 2024 15:04:09 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Richard Henderson , qemu-ppc@nongnu.org, qemu-arm@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v2 2/9] target/mips: Remove tswap() calls in semihosting uhi_fstat_cb() Date: Thu, 12 Dec 2024 00:03:50 +0100 Message-ID: <20241211230357.97036-3-philmd@linaro.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241211230357.97036-1-philmd@linaro.org> References: <20241211230357.97036-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=2a00:1450:4864:20::32d; envelope-from=philmd@linaro.org; helo=mail-wm1-x32d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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 @linaro.org) X-ZM-MESSAGEID: 1733958393857116600 In preparation of heterogeneous emulation where cores with different endianness can run concurrently, we need to remove the tswap() calls -- which use a fixed per-binary endianness. Get the endianness of the UHI CPU accessed using mips_env_is_bigendian() and replace the tswap() calls by bswap() ones when necessary. Reviewed-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- target/mips/tcg/sysemu/mips-semi.c | 43 +++++++++++++++++++++--------- 1 file changed, 30 insertions(+), 13 deletions(-) diff --git a/target/mips/tcg/sysemu/mips-semi.c b/target/mips/tcg/sysemu/mi= ps-semi.c index 5ba06e95734..df0c3256d9e 100644 --- a/target/mips/tcg/sysemu/mips-semi.c +++ b/target/mips/tcg/sysemu/mips-semi.c @@ -168,6 +168,7 @@ static void uhi_fstat_cb(CPUState *cs, uint64_t ret, in= t err) =20 if (!err) { CPUMIPSState *env =3D cpu_env(cs); + bool swap_needed =3D HOST_BIG_ENDIAN !=3D mips_env_is_bigendian(en= v); target_ulong addr =3D env->active_tc.gpr[5]; UHIStat *dst =3D lock_user(VERIFY_WRITE, addr, sizeof(UHIStat), 1); struct gdb_stat s; @@ -179,19 +180,35 @@ static void uhi_fstat_cb(CPUState *cs, uint64_t ret, = int err) memcpy(&s, dst, sizeof(struct gdb_stat)); memset(dst, 0, sizeof(UHIStat)); =20 - dst->uhi_st_dev =3D tswap16(be32_to_cpu(s.gdb_st_dev)); - dst->uhi_st_ino =3D tswap16(be32_to_cpu(s.gdb_st_ino)); - dst->uhi_st_mode =3D tswap32(be32_to_cpu(s.gdb_st_mode)); - dst->uhi_st_nlink =3D tswap16(be32_to_cpu(s.gdb_st_nlink)); - dst->uhi_st_uid =3D tswap16(be32_to_cpu(s.gdb_st_uid)); - dst->uhi_st_gid =3D tswap16(be32_to_cpu(s.gdb_st_gid)); - dst->uhi_st_rdev =3D tswap16(be32_to_cpu(s.gdb_st_rdev)); - dst->uhi_st_size =3D tswap64(be64_to_cpu(s.gdb_st_size)); - dst->uhi_st_atime =3D tswap64(be32_to_cpu(s.gdb_st_atime)); - dst->uhi_st_mtime =3D tswap64(be32_to_cpu(s.gdb_st_mtime)); - dst->uhi_st_ctime =3D tswap64(be32_to_cpu(s.gdb_st_ctime)); - dst->uhi_st_blksize =3D tswap64(be64_to_cpu(s.gdb_st_blksize)); - dst->uhi_st_blocks =3D tswap64(be64_to_cpu(s.gdb_st_blocks)); + dst->uhi_st_dev =3D be32_to_cpu(s.gdb_st_dev); + dst->uhi_st_ino =3D be32_to_cpu(s.gdb_st_ino); + dst->uhi_st_mode =3D be32_to_cpu(s.gdb_st_mode); + dst->uhi_st_nlink =3D be32_to_cpu(s.gdb_st_nlink); + dst->uhi_st_uid =3D be32_to_cpu(s.gdb_st_uid); + dst->uhi_st_gid =3D be32_to_cpu(s.gdb_st_gid); + dst->uhi_st_rdev =3D be32_to_cpu(s.gdb_st_rdev); + dst->uhi_st_size =3D be64_to_cpu(s.gdb_st_size); + dst->uhi_st_atime =3D be32_to_cpu(s.gdb_st_atime); + dst->uhi_st_mtime =3D be32_to_cpu(s.gdb_st_mtime); + dst->uhi_st_ctime =3D be32_to_cpu(s.gdb_st_ctime); + dst->uhi_st_blksize =3D be64_to_cpu(s.gdb_st_blksize); + dst->uhi_st_blocks =3D be64_to_cpu(s.gdb_st_blocks); + + if (swap_needed) { + dst->uhi_st_dev =3D bswap16(dst->uhi_st_dev); + dst->uhi_st_ino =3D bswap16(dst->uhi_st_ino); + dst->uhi_st_mode =3D bswap32(dst->uhi_st_mode); + dst->uhi_st_nlink =3D bswap16(dst->uhi_st_nlink); + dst->uhi_st_uid =3D bswap16(dst->uhi_st_uid); + dst->uhi_st_gid =3D bswap16(dst->uhi_st_gid); + dst->uhi_st_rdev =3D bswap16(dst->uhi_st_rdev); + dst->uhi_st_size =3D bswap64(dst->uhi_st_size); + dst->uhi_st_atime =3D bswap64(dst->uhi_st_atime); + dst->uhi_st_mtime =3D bswap64(dst->uhi_st_mtime); + dst->uhi_st_ctime =3D bswap64(dst->uhi_st_ctime); + dst->uhi_st_blksize =3D bswap64(dst->uhi_st_blksize); + dst->uhi_st_blocks =3D bswap64(dst->uhi_st_blocks); + } =20 unlock_user(dst, addr, sizeof(UHIStat)); } --=20 2.45.2