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[98.147.55.211]) by smtp.gmail.com with ESMTPSA id lc11-20020a170902fa8b00b001dc668e145asm3988580plb.200.2024.03.01.15.06.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 Mar 2024 15:06:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1709334408; x=1709939208; 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=fLzyN00Ww9I7UVC17/1x1fEMCCUgdxWcszCn7cBZ/1g=; b=GQFkxJp7FdjlEqaKG6Y6wINtyrrAyPg3+oQfUicYG5PXGgZ+fHqCRDKwQv1bKti7V6 hzRjQd89+jYqKgqmpAXbnKP3JV1thn4U2CAfOhg78MFMcExaAYybTuIFmQ3cRxkrXvOd 5+bBtr6rwwNTvWSJk5Ivw4NmRGcOX09UHe0PvJh2s0XcrfAVthveB5/ykjXbTNMEC6eN IR07x3PIPIn2IsQXgRxYGMVoDpmB3VXS6H4Zmi920bQh3UgiX9//5J88umdUS50eyXmC LxeAZcSWy7fGWDThgEaK/3WFRgGm0XByeE7pMyuZh8XcqRv19TInTeIPNori5YAa3VZk juAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709334408; x=1709939208; 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=fLzyN00Ww9I7UVC17/1x1fEMCCUgdxWcszCn7cBZ/1g=; b=w1Ma/jbKBc4RC2mE9YqN224ovCtf+wUa0i1oh/vcLy0Ia8UXQ6FBwBGPZpOcNU20vo 22aNkre6v9deBBmGsjttNkZqgyiFkffwTOO9QY3CrJsl+pvQ8WmtNzIo5vUslI6T5mBp f/m7pHoH5bpMSDqRkMSCrWwuJO0IeMN1oIkKKxNw9g8Nx+JN/KozOAQlOPukWMRWiKvU A4TDLRbQJjmqc6YL5CYZDo/fxMpLYqYOaZFFZVuoGiBhJxHF/iIWiLWepf8/4QWK7ReR WfF6QbHsNp1ZzKoMwAUUrtFhCVv/hxNBiJLF+6wrsPOqJ/1vGQgbW9irW8ET2YEp5SZd 5o7A== X-Gm-Message-State: AOJu0YxYJ7sUJQKehqiwyoUPQNGsX80M6xLDQTi2y0DRQC0is+1sgqSv XVDtYViuZgC9iFjj0geE81STnZKhyZ0Y7pM5RWzaS1hkxS3xJwHKc6Iiu7yfZEC4ExVXXzzKl8x L X-Google-Smtp-Source: AGHT+IHxweZfhk4PaCLoafF4gl6XSO4Lh9KhArLeXTdfKV5RFwIBrcjVw+CAcsqmHn7kzD0QrBnirw== X-Received: by 2002:a17:902:dacc:b0:1dc:b2ee:c7 with SMTP id q12-20020a170902dacc00b001dcb2ee00c7mr4090566plx.14.1709334407974; Fri, 01 Mar 2024 15:06:47 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: Ilya Leoshkevich , Pierrick Bouvier , Helge Deller Subject: [PATCH 19/60] linux-user: Adjust SVr4 NULL page mapping Date: Fri, 1 Mar 2024 13:05:38 -1000 Message-Id: <20240301230619.661008-20-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240301230619.661008-1-richard.henderson@linaro.org> References: <20240301230619.661008-1-richard.henderson@linaro.org> 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=2607:f8b0:4864:20::62d; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62d.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, T_SCC_BODY_TEXT_LINE=-0.01 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 @linaro.org) X-ZM-MESSAGEID: 1709334605942100001 Content-Type: text/plain; charset="utf-8" Use TARGET_PAGE_SIZE and MAP_FIXED_NOREPLACE. We really should be attending to this earlier during probe_guest_base, as well as better detection and emulation of various Linux personalities. Signed-off-by: Richard Henderson Reviewed-by: Ilya Leoshkevich Reviewed-by: Pierrick Bouvier Acked-by: Helge Deller Message-Id: <20240102015808.132373-3-richard.henderson@linaro.org> --- linux-user/elfload.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 38bfc9ac67..a51518f817 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -3912,8 +3912,9 @@ int load_elf_binary(struct linux_binprm *bprm, struct= image_info *info) and some applications "depend" upon this behavior. Since we do not have the power to recompile these, we emulate the SVr4 behavior. Sigh. */ - target_mmap(0, qemu_host_page_size, PROT_READ | PROT_EXEC, - MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + target_mmap(0, TARGET_PAGE_SIZE, PROT_READ | PROT_EXEC, + MAP_FIXED_NOREPLACE | MAP_PRIVATE | MAP_ANONYMOUS, + -1, 0); } #ifdef TARGET_MIPS info->interp_fp_abi =3D interp_info.fp_abi; --=20 2.34.1