From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5235 invoked by alias); 13 Aug 2013 17:11:01 -0000 Mailing-List: contact libc-ports-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: libc-ports-owner@sourceware.org Received: (qmail 5217 invoked by uid 89); 13 Aug 2013 17:11:01 -0000 X-Spam-SWARE-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE,SPF_PASS autolearn=ham version=3.3.2 Received: from mail-we0-f170.google.com (HELO mail-we0-f170.google.com) (74.125.82.170) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Tue, 13 Aug 2013 17:11:00 +0000 Received: by mail-we0-f170.google.com with SMTP id w60so6969086wes.29 for ; Tue, 13 Aug 2013 10:10:57 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-gm-message-state:mime-version:date:message-id:subject:from:to:cc :content-type; bh=h5+NGrNFK32rUxu9CMrMD23IZ/+rBl/QcV4o+WBU5gE=; b=BzXnCOvbICDK9DiUgwu1Jqcpi7jVAcp4LEcTk6qldRVNc29uwNSISdfC830zIEdiRo z4SILcxuxtPuOy0lRlA8gAi0a5Fq3M6U5c9iuD0e4xQwAdL17jaqct+iZQOTeVgXDRQE StKgWMJ/QvBiCbw7663co82hbvuguFndg8dYNBE+0RbXCGqnmY2CpxSjE7yBbmBF1H0h YG5wiyilZAGGmHbIZ54IicA99zIg4rEo8pb800VBYnTTB3ThWRhIKtw/d3S3eAIwkobG oYaOBrWKTGabU7MXoU7jh7GTp7oWaIf8xPIRUhZa99AU365zTr7UmrSY7fkCwLlXxRPB Yg9A== X-Gm-Message-State: ALoCoQmzNcg6CY69K9xf4Mag0YoYKeikh7Pc5hni04FaUeeUKDoef6vMUGbvPUeirWZ1oMPfmEiM MIME-Version: 1.0 X-Received: by 10.180.109.167 with SMTP id ht7mr3314957wib.45.1376413857500; Tue, 13 Aug 2013 10:10:57 -0700 (PDT) Received: by 10.194.238.72 with HTTP; Tue, 13 Aug 2013 10:10:57 -0700 (PDT) Date: Tue, 13 Aug 2013 17:11:00 -0000 Message-ID: Subject: [Patch] ARM define atomic_exchange_acq/atomic_exchange_rel to __atomic_exchange_n From: Dinar Temirbulatov To: libc-ports@sourceware.org Cc: joseph@codesourcery.com, adeb@nvidia.com Content-Type: multipart/mixed; boundary=e89a8f3ba7e10a613704e3d753cf X-Virus-Found: No X-SW-Source: 2013-08/txt/msg00003.txt.bz2 --e89a8f3ba7e10a613704e3d753cf Content-Type: text/plain; charset=ISO-8859-1 Content-length: 457 Hello, Following patch redefines atomic_exchange_acq/atomic_exchange_rel to __atomic_exchange_n for ARM, that allows for example to reduce number of instruction sequence for lll_unlock from: ldex, cmp, bne, stex, cmp, bne to ldex, stex, cmp, bne , more on the issue here: http://sourceware.org/bugzilla/show_bug.cgi?id=15640 This patch was tested on ARM a9 with glibc testsuite with no new regressions. OK to commit? Thanks, Dinar. --e89a8f3ba7e10a613704e3d753cf Content-Type: application/octet-stream; name="arm_atomic.patch" Content-Disposition: attachment; filename="arm_atomic.patch" Content-Transfer-Encoding: base64 X-Attachment-Id: f_hkbd9hv80 Content-length: 1534 ZGlmZiAtLWdpdCBhL3BvcnRzL3N5c2RlcHMvYXJtL2JpdHMvYXRvbWljLmgg Yi9wb3J0cy9zeXNkZXBzL2FybS9iaXRzL2F0b21pYy5oCmluZGV4IDZlMjBk ZjcuLjc4ZDRhNmUgMTAwNjQ0Ci0tLSBhL3BvcnRzL3N5c2RlcHMvYXJtL2Jp dHMvYXRvbWljLmgKKysrIGIvcG9ydHMvc3lzZGVwcy9hcm0vYml0cy9hdG9t aWMuaApAQCAtNzksMyArNzksMjYgQEAgdm9pZCBfX2FybV9saW5rX2Vycm9y ICh2b2lkKTsKICMgZGVmaW5lIF9fYXJtX2Fzc2lzdGVkX2NvbXBhcmVfYW5k X2V4Y2hhbmdlX3ZhbF8zMl9hY3EobWVtLCBuZXd2YWwsIG9sZHZhbCkgXAog ICAoeyBfX2FybV9saW5rX2Vycm9yICgpOyBvbGR2YWw7IH0pCiAjZW5kaWYK KworI2lmIF9fR05VQ19QUkVSRVEgKDQsIDcpCisjIGRlZmluZSBhdG9taWNf ZXhjaGFuZ2VfYWNxKG1lbSwgdmFsdWUpICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICBcCisgIF9fYXRvbWljX3ZhbF9ieXNpemUgKF9fYXJjaF9l eGNoYW5nZSwgaW50LCBtZW0sIHZhbHVlLCBfX0FUT01JQ19BQ1FVSVJFKQor CisjIGRlZmluZSBhdG9taWNfZXhjaGFuZ2VfcmVsKG1lbSwgdmFsdWUpICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICBcCisgIF9fYXRvbWljX3Zh bF9ieXNpemUgKF9fYXJjaF9leGNoYW5nZSwgaW50LCBtZW0sIHZhbHVlLCBf X0FUT01JQ19SRUxFQVNFKQorCisvKiBBdG9taWMgZXhjaGFuZ2UgKHdpdGhv dXQgY29tcGFyZSkuICAqLworCisjIGRlZmluZSBfX2FyY2hfZXhjaGFuZ2Vf OF9pbnQobWVtLCBuZXd2YWwsIG1vZGVsKSAgICAgIFwKKyAgKGFib3J0ICgp LCAodHlwZW9mKCptZW0pKSAwKQorCisjIGRlZmluZSBfX2FyY2hfZXhjaGFu Z2VfMTZfaW50KG1lbSwgbmV3dmFsLCBtb2RlbCkgICAgIFwKKyAgKGFib3J0 ICgpLCAodHlwZW9mKCptZW0pKSAwKQorCisjIGRlZmluZSBfX2FyY2hfZXhj aGFuZ2VfMzJfaW50KG1lbSwgbmV3dmFsLCBtb2RlbCkgICAgIFwKKyAgX19h dG9taWNfZXhjaGFuZ2VfbiAobWVtLCBuZXd2YWwsIG1vZGVsKQorCisjIGRl ZmluZSBfX2FyY2hfZXhjaGFuZ2VfNjRfaW50KG1lbSwgbmV3dmFsLCBtb2Rl bCkgICAgIFwKKyAgKGFib3J0ICgpLCAodHlwZW9mKCptZW0pKSAwKQorCisj ZW5kaWYK --e89a8f3ba7e10a613704e3d753cf--