From patchwork Sat Jan 13 10:38:02 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Palmer Dabbelt X-Patchwork-Id: 25373 Received: (qmail 97709 invoked by alias); 13 Jan 2018 10:38:49 -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 97575 invoked by uid 89); 13 Jan 2018 10:38:48 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-25.9 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=auxiliary X-HELO: mail-pf0-f177.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=B9bNmAjflt4X/b1mVDRXfBosH8eS+PTqpzi2wkCDGYo=; b=nKWEVfoexne9pkhboi6rWJERFEZo1qzSy3KlycshlyOkTXuIKoV7n0UoBsOE5RXjNb EnE18wvMosdbl150dm/coAWsArgLc6VEz+tcO8q6LSN1T/GGUviebX5XZSK+ZgJaC7Hm onI68AVrqHt7+Z07glo+OnVjWsBjGu73UKvcyK4iX4j6z6eo8Qxs83svymySeD8HP0HP KkPcJ00UUzBVBt45O7+1XzHLeIl7zloTKd6A8YxywKxNoQQDO+17+e4quXoiB0DGPTcB co0JiR4TTn0RLXfpycXgXlLHZ/ONp7QyoQoJuJv/fH5KitaMvbd1Ld1z1dRUzzacRZxl m5uA== X-Gm-Message-State: AKGB3mIqMRw9N9qH70YEX6Qk9U4pyz2RhwY3EVYcQwHFwnyFLcgLGpWg Gzlu0g9Hsf3ZVA5bVmxTKh8bjQ== X-Google-Smtp-Source: ACJfBovxd1iiV07RfiJP8OUZDsufKaos8qp/FqoZWECDMdT6+k4fd5+nizVVu1Ww6XFI260M+SPg6Q== X-Received: by 10.98.63.93 with SMTP id m90mr16220333pfa.231.1515839925364; Sat, 13 Jan 2018 02:38:45 -0800 (PST) Subject: [PATCH v4 03/17] Add support for the RISC-V-specific ELF flags Date: Sat, 13 Jan 2018 02:38:02 -0800 Message-Id: <20180113103816.4861-4-palmer@dabbelt.com> In-Reply-To: <20180113103816.4861-1-palmer@dabbelt.com> References: <20180113103816.4861-1-palmer@dabbelt.com> Cc: patches@groups.riscv.org, Palmer Dabbelt From: Palmer Dabbelt To: libc-alpha@sourceware.org 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 | 4 ++++ elf/elf.h | 8 ++++++++ sysdeps/generic/ldconfig.h | 2 ++ 3 files changed, 14 insertions(+) diff --git a/elf/cache.c b/elf/cache.c index 1ec6ab36e7f7..1202c215016a 100644 --- a/elf/cache.c +++ b/elf/cache.c @@ -114,6 +114,10 @@ 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); + case FLAG_RISCV_FLOAT_ABI_DOUBLE: + fputs (",soft-float", stdout); case 0: break; default: diff --git a/elf/elf.h b/elf/elf.h index 031850377bb6..4cb18ff9c0a8 100644 --- a/elf/elf.h +++ b/elf/elf.h @@ -3762,6 +3762,14 @@ 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"