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[79.139.171.253]) by smtp.gmail.com with ESMTPSA id g20-20020ac25394000000b00513973dee6fsm361290lfh.150.2024.03.23.10.35.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 23 Mar 2024 10:35:18 -0700 (PDT) From: Sergey Bugaev To: libc-alpha@sourceware.org, bug-hurd@gnu.org Cc: Maxim Kuvyrkov , Luca Subject: [PATCH v2 08/20] aarch64: Add dl-procinfo Date: Sat, 23 Mar 2024 20:32:49 +0300 Message-ID: <20240323173301.151066-9-bugaevc@gmail.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240323173301.151066-1-bugaevc@gmail.com> References: <20240323173301.151066-1-bugaevc@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-9.5 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, KAM_SHORT, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libc-alpha-bounces+incoming=patchwork.ozlabs.org@sourceware.org This is based on the Linux version, but doesn't define GLRO(dl_aarch64_cap_flags) and implement _dl_hwcap_string (which seems unused anyway) based on Linux HWCAP bit values. Signed-off-by: Sergey Bugaev --- sysdeps/aarch64/dl-procinfo.c | 59 +++++++++++++++++++++++++++++++++++ sysdeps/aarch64/dl-procinfo.h | 38 ++++++++++++++++++++++ 2 files changed, 97 insertions(+) create mode 100644 sysdeps/aarch64/dl-procinfo.c create mode 100644 sysdeps/aarch64/dl-procinfo.h diff --git a/sysdeps/aarch64/dl-procinfo.c b/sysdeps/aarch64/dl-procinfo.c new file mode 100644 index 00000000..5a51edbc --- /dev/null +++ b/sysdeps/aarch64/dl-procinfo.c @@ -0,0 +1,59 @@ +/* Data for AArch64 version of processor capability information. + Copyright (C) 2017-2024 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +/* If anything should be added here check whether the size of each string + is still ok with the given array size. + + All the #ifdefs in the definitions are quite irritating but + necessary if we want to avoid duplicating the information. There + are three different modes: + + - PROCINFO_DECL is defined. This means we are only interested in + declarations. + + - PROCINFO_DECL is not defined: + + + if SHARED is defined the file is included in an array + initializer. The .element = { ... } syntax is needed. + + + if SHARED is not defined a normal array initialization is + needed. + */ + +#ifndef PROCINFO_CLASS +# define PROCINFO_CLASS +#endif + +#if !IS_IN (ldconfig) +# if !defined PROCINFO_DECL && defined SHARED + ._dl_aarch64_cpu_features +# else +PROCINFO_CLASS struct cpu_features _dl_aarch64_cpu_features +# endif +# ifndef PROCINFO_DECL += { } +# endif +# if !defined SHARED || defined PROCINFO_DECL +; +# else +, +# endif +#endif + +#undef PROCINFO_DECL +#undef PROCINFO_CLASS diff --git a/sysdeps/aarch64/dl-procinfo.h b/sysdeps/aarch64/dl-procinfo.h new file mode 100644 index 00000000..176de5cd --- /dev/null +++ b/sysdeps/aarch64/dl-procinfo.h @@ -0,0 +1,38 @@ +/* Processor capability information handling macros - aarch64 version. + Copyright (C) 2017-2024 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _DL_PROCINFO_H +#define _DL_PROCINFO_H 1 + +#include +#include +#include +#include + +/* We cannot provide a general printing function. */ +#define _dl_procinfo(type, word) -1 + +/* No additional library search paths. */ +#define HWCAP_IMPORTANT HWCAP_ATOMICS + +/* There're no platforms to filter out. */ +#define _DL_HWCAP_PLATFORM 0 + +#define _dl_string_platform(str) (-1) + +#endif /* dl-procinfo.h */