From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755244AbaF3I5R (ORCPT ); Mon, 30 Jun 2014 04:57:17 -0400 Received: from mail-qc0-f171.google.com ([209.85.216.171]:51192 "EHLO mail-qc0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755163AbaF3I5O (ORCPT ); Mon, 30 Jun 2014 04:57:14 -0400 MIME-Version: 1.0 Date: Mon, 30 Jun 2014 01:57:13 -0700 X-Google-Sender-Auth: 7Iwam5svylYIBmtVrnJcH95nbv4 Message-ID: Subject: [PATCH] sparse: Add CLOG option for saving warning From: Christopher Li To: linux-kernel Cc: Linux-Sparse , Sam Ravnborg , Andrew Morton , Josh Triplett Content-Type: multipart/mixed; boundary=001a113a76ca62b5ba04fd09d8a3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --001a113a76ca62b5ba04fd09d8a3 Content-Type: text/plain; charset=ISO-8859-1 Currently sparse warning only output to stderr. In the parallel build process, different source file output is fixed together. It is hard to keep track of the warning. Add the CLOG= option in command line to save the sparse warning into individual log file. Typical usage: make -j8 C=2 CLOG= The log file is saved in the target directory as .xxx.o..sparse By diffing between different log file, it is much easier to analyze how the sparse change impact the whole kernel build. Signed-off-by: Christopher Li Chris --001a113a76ca62b5ba04fd09d8a3 Content-Type: text/x-patch; charset=US-ASCII; name="0001-sparse-Add-CLOG-option-for-saving-warning.patch" Content-Disposition: attachment; filename="0001-sparse-Add-CLOG-option-for-saving-warning.patch" Content-Transfer-Encoding: base64 X-Attachment-Id: f_hx1jvqmh0 RnJvbSAzYjJmZjIwNGNiZGE2ODRhZGY5ZGJhMmFkZjU2ODA2MjUzM2FlMzRkIE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBDaHJpc3RvcGhlciBMaSA8c3BhcnNlQGNocmlzbGkub3JnPgpE YXRlOiBNb24sIDMwIEp1biAyMDE0IDAxOjMzOjIyIC0wNzAwClN1YmplY3Q6IFtQQVRDSF0gc3Bh cnNlOiBBZGQgQ0xPRyBvcHRpb24gZm9yIHNhdmluZyB3YXJuaW5nCgpDdXJyZW50bHkgc3BhcnNl IHdhcm5pbmcgb25seSBvdXRwdXQgdG8gc3RkZXJyLgpJbiB0aGUgcGFyYWxsZWwgYnVpbGQgcHJv Y2VzcywgZGlmZmVyZW50IHNvdXJjZQpmaWxlIG91dHB1dCBpcyBmaXhlZCB0b2dldGhlci4gSXQg aXMgaGFyZCB0byBrZWVwCnRyYWNrIG9mIHRoZSB3YXJuaW5nLgoKQWRkIHRoZSBDTE9HPTxsb2du YW1lPiBvcHRpb24gaW4gY29tbWFuZCBsaW5lIHRvCnNhdmUgdGhlIHNwYXJzZSB3YXJuaW5nIGlu dG8gaW5kaXZpZHVhbCBsb2cgZmlsZS4KClR5cGljYWwgdXNhZ2U6CgptYWtlIC1qOCBDPTIgQ0xP Rz08bG9nbmFtZT4KClRoZSBsb2cgZmlsZSBpcyBzYXZlZCBpbiB0aGUgdGFyZ2V0IGRpcmVjdG9y eSBhcwoueHh4Lm8uPGxvZ25hbWU+LnNwYXJzZQoKQnkgZGlmZmluZyBiZXR3ZWVuIGRpZmZlcmVu dCBsb2cgZmlsZSwgaXQgaXMgbXVjaAplYXNpZXIgdG8gYW5hbHl6ZSBob3cgdGhlIHNwYXJzZSBj aGFuZ2UgaW1wYWN0CnRoZSB3aG9sZSBrZXJuZWwgYnVpbGQuCgpTaWduZWQtb2ZmLWJ5OiBDaHJp c3RvcGhlciBMaSA8c3BhcnNlQGNocmlzbGkub3JnPgotLS0KIE1ha2VmaWxlICAgICAgICAgICAg ICAgfCAxMyArKysrKysrKysrKystCiBzY3JpcHRzL01ha2VmaWxlLmJ1aWxkIHwgMTEgKysrKysr KysrLS0KIDIgZmlsZXMgY2hhbmdlZCwgMjEgaW5zZXJ0aW9ucygrKSwgMyBkZWxldGlvbnMoLSkK CmRpZmYgLS1naXQgYS9NYWtlZmlsZSBiL01ha2VmaWxlCmluZGV4IGIxMWUyZDUuLjU2YzM1MDIg MTAwNjQ0Ci0tLSBhL01ha2VmaWxlCisrKyBiL01ha2VmaWxlCkBAIC02OCw2ICs2OCwxNiBAQCBp Zm5kZWYgS0JVSUxEX0NIRUNLU1JDCiAgIEtCVUlMRF9DSEVDS1NSQyA9IDAKIGVuZGlmCiAKK2lm ZXEgKCIkKG9yaWdpbiBDTE9HKSIsICJjb21tYW5kIGxpbmUiKQorICBLQlVJTERfQ0hFQ0tMT0cg PSAkKENMT0cpCitlbmRpZgoraWZuZGVmIEtCVUlMRF9DSEVDS0xPRworICBLQlVJTERfQ0hFQ0tM T0cgPQorZW5kaWYKKworCisKKwogIyBVc2UgbWFrZSBNPWRpciB0byBzcGVjaWZ5IGRpcmVjdG9y eSBvZiBleHRlcm5hbCBtb2R1bGUgdG8gYnVpbGQKICMgT2xkIHN5bnRheCBtYWtlIC4uLiBTVUJE SVJTPSRQV0QgaXMgc3RpbGwgc3VwcG9ydGVkCiAjIFNldHRpbmcgdGhlIGVudmlyb25tZW50IHZh cmlhYmxlIEtCVUlMRF9FWFRNT0QgdGFrZSBwcmVjZWRlbmNlCkBAIC0yODcsNyArMjk3LDcgQEAg aWZlcSAoJChNQUtFQ01ER09BTFMpLCkKIGVuZGlmCiAKIGV4cG9ydCBLQlVJTERfTU9EVUxFUyBL QlVJTERfQlVJTFRJTgotZXhwb3J0IEtCVUlMRF9DSEVDS1NSQyBLQlVJTERfU1JDIEtCVUlMRF9F WFRNT0QKK2V4cG9ydCBLQlVJTERfQ0hFQ0tTUkMgS0JVSUxEX0NIRUNLTE9HIEtCVUlMRF9TUkMg S0JVSUxEX0VYVE1PRAogCiAjIEJlYXV0aWZ5IG91dHB1dAogIyAtLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0K QEAgLTEzNzAsNiArMTM4MCw3IEBAIGNsZWFuOiAkKGNsZWFuLWRpcnMpCiAJJChjYWxsIGNtZCxy bWZpbGVzKQogCUBmaW5kICQoaWYgJChLQlVJTERfRVhUTU9EKSwgJChLQlVJTERfRVhUTU9EKSwg LikgJChSQ1NfRklORF9JR05PUkUpIFwKIAkJXCggLW5hbWUgJyouW29hc10nIC1vIC1uYW1lICcq LmtvJyAtbyAtbmFtZSAnLiouY21kJyBcCisJCS1vIC1uYW1lICcuKi5zcGFyc2UnIFwKIAkJLW8g LW5hbWUgJyoua28uKicgXAogCQktbyAtbmFtZSAnLiouZCcgLW8gLW5hbWUgJy4qLnRtcCcgLW8g LW5hbWUgJyoubW9kLmMnIFwKIAkJLW8gLW5hbWUgJyouc3ltdHlwZXMnIC1vIC1uYW1lICdtb2R1 bGVzLm9yZGVyJyBcCmRpZmYgLS1naXQgYS9zY3JpcHRzL01ha2VmaWxlLmJ1aWxkIGIvc2NyaXB0 cy9NYWtlZmlsZS5idWlsZAppbmRleCBiZjNlNjc3Li40NWM2MDA0IDEwMDY0NAotLS0gYS9zY3Jp cHRzL01ha2VmaWxlLmJ1aWxkCisrKyBiL3NjcmlwdHMvTWFrZWZpbGUuYnVpbGQKQEAgLTk2LDE0 ICs5NiwyMSBAQCBfX2J1aWxkOiAkKGlmICQoS0JVSUxEX0JVSUxUSU4pLCQoYnVpbHRpbi10YXJn ZXQpICQobGliLXRhcmdldCkgJChleHRyYS15KSkgXAogCSAkKHN1YmRpci15bSkgJChhbHdheXMp CiAJQDoKIAorY2hlY2tfbG9nX2ZpbGUgPSAkKGRvdC10YXJnZXQpLiQoS0JVSUxEX0NIRUNLTE9H KS5zcGFyc2UKKworaWZuZXEgKCQoS0JVSUxEX0NIRUNLTE9HKSwpCisgIGNoZWNrX2xvZ2dpbmcg PSAyPiAkKGNoZWNrX2xvZ19maWxlKQorZW5kaWYKKworY21kX2NoZWNrID0gJChDSEVDSykgJChD SEVDS0ZMQUdTKSAkKGNfZmxhZ3MpICQ8ICQoY2hlY2tfbG9nZ2luZykgOwogIyBMaW51cycga2Vy bmVsIHNhbml0eSBjaGVja2luZyB0b29sCiBpZm5lcSAoJChLQlVJTERfQ0hFQ0tTUkMpLDApCiAg IGlmZXEgKCQoS0JVSUxEX0NIRUNLU1JDKSwyKQogICAgIHF1aWV0X2NtZF9mb3JjZV9jaGVja3Ny YyA9IENIRUNLICAgJDwKLSAgICAgICAgICBjbWRfZm9yY2VfY2hlY2tzcmMgPSAkKENIRUNLKSAk KENIRUNLRkxBR1MpICQoY19mbGFncykgJDwgOworICAgICAgICAgIGNtZF9mb3JjZV9jaGVja3Ny YyA9ICQoY21kX2NoZWNrKQogICBlbHNlCiAgICAgICBxdWlldF9jbWRfY2hlY2tzcmMgICAgID0g Q0hFQ0sgICAkPAotICAgICAgICAgICAgY21kX2NoZWNrc3JjICAgICA9ICQoQ0hFQ0spICQoQ0hF Q0tGTEFHUykgJChjX2ZsYWdzKSAkPCA7CisgICAgICAgICAgICBjbWRfY2hlY2tzcmMgICAgID0g JChjbWRfY2hlY2spCiAgIGVuZGlmCiBlbmRpZgogCi0tIAoxLjkuMwoK --001a113a76ca62b5ba04fd09d8a3--