From patchwork Thu Jan 25 04:36:07 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Palmer Dabbelt X-Patchwork-Id: 25512 Received: (qmail 19005 invoked by alias); 25 Jan 2018 04:36:41 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 18896 invoked by uid 89); 25 Jan 2018 04:36:40 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-26.1 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: mail-pf0-f181.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:date:message-id:in-reply-to:references :cc:from:to; bh=Z8hjTQLuE5OuMKxmAID8r+02hyjU51duXgzEPdmxI1Y=; b=BMpuy0Fe/+d2bUHsk7IsSctM+khIN5r3/Szztdn+hVHoTT9GaKPE8FCDg35i3hsJZB pNorVlwjlRV5fNp7KbQblQXjdvqhBPb0pSu0gWkv79fm15RwkjULT9Hl9wzVnzZHaTe0 CHSU7DBoeYF0UvwjaoSVdXM9ieDBO2x51p0XEmelrTeMntjhJcqGXW0w/VG+1VNriDvV E9gy5Ovnr24d5LyH2pwYDHRP7+eZho/gPquPnBUcy6r+2GoOrfCOqCMEF6+6THae1s8h ci63MSPPmUAJ+WwluaVNdkqCql4lRMkB2SGaZMJWqN6qQxxBIDbwhzxzC4f4zDbGqqSw dznA== X-Gm-Message-State: AKwxytd1YRfjfxhVzQYFBYQ2NKgb8zjKgAzjhKD69gFemq1RjJvPSHok UnhqFhrgMfpDF8T1dEeyuudgYA== X-Google-Smtp-Source: AH8x227r5PDDdDAk3rj+q3BCm8Wph5QRJZ6ojfs7idTbFgrZTLSgsT6ZpV+kwYpGUKU8RxJEiAlY9Q== X-Received: by 2002:a17:902:768b:: with SMTP id m11-v6mr9834744pll.50.1516854997303; Wed, 24 Jan 2018 20:36:37 -0800 (PST) Subject: [PATCH 03/17] Add support for the RISC-V-specific ELF flags Date: Wed, 24 Jan 2018 20:36:07 -0800 Message-Id: <20180125043621.19972-4-palmer@dabbelt.com> In-Reply-To: <20180125043621.19972-1-palmer@dabbelt.com> References: <20180125043621.19972-1-palmer@dabbelt.com> Cc: Andrew Waterman , Darius Rad , dj@redhat.com, patches@groups.riscv.org, Palmer Dabbelt From: Palmer Dabbelt To: libc-alpha@sourceware.org, joseph@codesourcery.com The RISC-V port defines ELF flags that enforce compatibility between various objects. This adds the shared support necessary for these flags. 2018-01-13 Palmer Dabbelt * elf/cache.c (print_entry): Add FLAG_RISCV_FLOAT_ABI_SOFT and FLAG_RISCV_FLOAT_ABI_DOUBLE. * elf/elf.h (EF_RISCV_RVC): New define. (EF_RISCV_FLOAT_ABI): Likewise. (EF_RISCV_FLOAT_ABI_SOFT): Likewise. (EF_RISCV_FLOAT_ABI_SINGLE): Likewise. (EF_RISCV_FLOAT_ABI_DOUBLE): Likewise. (EF_RISCV_FLOAT_ABI_QUAD): Likewise. * sysdeps/generic/ldconfig.h (FLAG_RISCV_FLOAT_ABI_SOFT): New define. (FLAG_RISCV_FLOAT_ABI_DOUBLE): Likewise. --- elf/cache.c | 6 ++++++ elf/elf.h | 8 ++++++++ sysdeps/generic/ldconfig.h | 2 ++ 3 files changed, 16 insertions(+) diff --git a/elf/cache.c b/elf/cache.c index 1ec6ab36e7f7..c2c010f97bb2 100644 --- a/elf/cache.c +++ b/elf/cache.c @@ -114,6 +114,12 @@ print_entry (const char *lib, int flag, unsigned int osversion, case FLAG_MIPS64_LIBN64_NAN2008: fputs (",64bit,nan2008", stdout); break; + case FLAG_RISCV_FLOAT_ABI_SOFT: + fputs (",soft-float", stdout); + break; + case FLAG_RISCV_FLOAT_ABI_DOUBLE: + fputs (",double-float", stdout); + break; case 0: break; default: diff --git a/elf/elf.h b/elf/elf.h index 66af3dc0ea61..954f3266f711 100644 --- a/elf/elf.h +++ b/elf/elf.h @@ -3766,6 +3766,14 @@ enum #define R_TILEGX_NUM 130 +/* RISC-V ELF Flags */ +#define EF_RISCV_RVC 0x0001 +#define EF_RISCV_FLOAT_ABI 0x0006 +#define EF_RISCV_FLOAT_ABI_SOFT 0x0000 +#define EF_RISCV_FLOAT_ABI_SINGLE 0x0002 +#define EF_RISCV_FLOAT_ABI_DOUBLE 0x0004 +#define EF_RISCV_FLOAT_ABI_QUAD 0x0006 + /* RISC-V relocations. */ #define R_RISCV_NONE 0 #define R_RISCV_32 1 diff --git a/sysdeps/generic/ldconfig.h b/sysdeps/generic/ldconfig.h index 74eb92e528d5..59e20dc3ef79 100644 --- a/sysdeps/generic/ldconfig.h +++ b/sysdeps/generic/ldconfig.h @@ -42,6 +42,8 @@ #define FLAG_MIPS_LIB32_NAN2008 0x0c00 #define FLAG_MIPS64_LIBN32_NAN2008 0x0d00 #define FLAG_MIPS64_LIBN64_NAN2008 0x0e00 +#define FLAG_RISCV_FLOAT_ABI_SOFT 0x0f00 +#define FLAG_RISCV_FLOAT_ABI_DOUBLE 0x1000 /* Name of auxiliary cache. */ #define _PATH_LDCONFIG_AUX_CACHE "/var/cache/ldconfig/aux-cache"