From nobody Fri Oct 4 20:35:05 2024 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XL0fL31Q2z5YK9G; Fri, 04 Oct 2024 20:35:06 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XL0fL0w8pz4TL0; Fri, 4 Oct 2024 20:35:06 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1728074106; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ukoLyTCsZDnEK52R7OapfxvcVTt63L+axrUZL4tkViE=; b=X/wq24O4Ro7tGxkgQXfU/3he+41YLtTs3cgs/6a+GprJl8HFFiAxT4lum94UzapOMW6gjP bka9/4xQ1Cj3cbSmgNzYb30+NupjyBX4bJHCMu+ioEV+X7KZ/ameH2EBKBIFD810iNO5ZU MbFzG6G2aDCjqM2m+XxNhDVLyBAlpGAtb9/k6+T0pRklFfCfP48kurQFCS1rKu1fUID+GP gZ5MahovWo/WjbMVRUsTo5bIQ0IG5QuErydxUcH6aG26nnMffNgZ6aNDhTkrt4nCIvbJhU VgpZvfZ1+wLmJlcbmavzbTk7d9e65W2mny7SxEijTfY1MpaVZpY05o3PkH2IzQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1728074106; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ukoLyTCsZDnEK52R7OapfxvcVTt63L+axrUZL4tkViE=; b=ovQXymUi0XJtYiEN1G7ROQ8/0qGVvAhFmLuVs1WvsHvaUvUkjDDa1tZUmHpdfDAehHKXtN aJ+ngFbwe0uHYwqIonuWPdQfKLf30n526zQX0V8eaiW0iFmACKBFkgLUAykMv5MHWOIC65 RN8+PU/rCZKVZWpvHGuoRH3uWRg/PRAbN0KfmahwfFMM7XUJpURZ9YzjNFAHc/Wi/Yx/Np 7+eW6YA21g1ngO61IT+jyle2qcMLeo5i/iP/KVu57fD8AbZyaoyjbwI+1JfR645stlkoTx VdQvWQtlCZPkU3BIEtPaGaOiCkXR4mWssikIEZ3m9IQhK1XSpA/8YW+y5R0X9Q== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1728074106; a=rsa-sha256; cv=none; b=URW605NuPlKOIu0Ztn7Ms2WVUWK/Q9JDDnZ+LM2MBpYc2/8Z6PmJITFKMNkCgXcbkKjMw/ 7fInt1rV9hRUq9qFmS1B8QmOiTS6Y2jxbjMYzHB7yJyQ9lF0YkBxTjWusSRF8ZUskZ03wy w3VtjkJGqO3wIQrZVXHWDeoSVkYrfWj81saNGTLFEkCliu09CvQd5sh45PVFymG+FvTnvc ooLNn8uY3oHSRV78TlmLaOnNCkZyoJzPm2/tPiWRhZQewe8bx8ueH6FsXVHxsCLGmgH9yu Nz5KUzNT6kqDmAq7qgNKqpcJ8WY/D5pDZ3qgqZdR86Loj2pCTTqmBCh1f2HWWQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4XL0fL0WyKzpsL; Fri, 4 Oct 2024 20:35:06 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 494KZ5Pf023228; Fri, 4 Oct 2024 20:35:05 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 494KZ5TL023225; Fri, 4 Oct 2024 20:35:05 GMT (envelope-from git) Date: Fri, 4 Oct 2024 20:35:05 GMT Message-Id: <202410042035.494KZ5TL023225@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Brooks Davis Subject: git: d0af970e3ce4 - main - sysv shm: Fix SHM_REMAP flag value List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: brooks X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: d0af970e3ce4a7e2108a4bc2442c6c98f6aa4ffa Auto-Submitted: auto-generated The branch main has been updated by brooks: URL: https://cgit.FreeBSD.org/src/commit/?id=d0af970e3ce4a7e2108a4bc2442c6c98f6aa4ffa commit d0af970e3ce4a7e2108a4bc2442c6c98f6aa4ffa Author: Brooks Davis AuthorDate: 2024-10-04 20:34:03 +0000 Commit: Brooks Davis CommitDate: 2024-10-04 20:34:03 +0000 sysv shm: Fix SHM_REMAP flag value SHM_REMAP was incorrectly defined to 030000 which collides with SHM_RDONLY and SHM_RND. Renumber to 040000 (incidentally matching Linux). This is an ABI break, but the previous ABI was unusable (SHM_REMAP would imply SHM_RDONLY and vice versa). Fortunately SHM_REMAP has very few consumers in the wild (I spotted openjdk for Linux, libfabric, MIPCH, and one other MPI thing in Debian code search) Reviewed by: kib Fixes: ea7e7006db10 Implement shmat(2) flag SHM_REMAP. Differential Revision: https://reviews.freebsd.org/D46825 --- sys/sys/shm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/sys/shm.h b/sys/sys/shm.h index d80de811ef7d..df32230dcdc7 100644 --- a/sys/sys/shm.h +++ b/sys/sys/shm.h @@ -51,7 +51,7 @@ #define SHM_RDONLY 010000 /* Attach read-only (else read-write) */ #define SHM_RND 020000 /* Round attach address to SHMLBA */ -#define SHM_REMAP 030000 /* Unmap before mapping */ +#define SHM_REMAP 040000 /* Unmap before mapping */ #define SHMLBA PAGE_SIZE /* Segment low boundary address multiple */ /* "official" access mode definitions; somewhat braindead since you have