From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ua1-x936.google.com (mail-ua1-x936.google.com [IPv6:2607:f8b0:4864:20::936]) by sourceware.org (Postfix) with ESMTPS id 361A23858D32 for ; Sat, 1 Apr 2023 21:36:12 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 361A23858D32 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-ua1-x936.google.com with SMTP id i22so18403670uat.8 for ; Sat, 01 Apr 2023 14:36:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1680384971; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=HPFfqmN5zQ7I7QhsnuVv0iwOGuL63Nqk/bjnobZsNjk=; b=O/52SwCeDMzOx9oAOWasW7q/hT6WIZaWzF70Znf87reaqT90mDh3kScI3qwFmB66fb yhk5kR7ZuCWY7khUkVVfJ5oWSBRjMdMLQ+vWbl8KHk2IrJDnulhekkalHzzezE1V+jcr m2vnHdXvGkErkpb7UADTOyvIm1f2dVHTbVWtkn/+UJAJjFIbcR34479djoBF1GaaPfpI saYwj70erz+kMzGiOtw9KPm3GxMhN7wR792Aa/XY8gbSSY+3wQ8Jo24kgsZZynPt0JeS sGyJj4fgkn6A255L4AZfVkyXx11NzPzCMR24SEvFkprQSRtOSDzoFMf5z2W3mDMda+OY vo8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680384971; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=HPFfqmN5zQ7I7QhsnuVv0iwOGuL63Nqk/bjnobZsNjk=; b=zMX/YKW8IUonPPPquf4KNjEPBHjPNBqgnSaVLn8XulYmWRc6O4YIpkWbWSOmbjR8kG /U56YM0iVFtswMIFiFBZksONWatiKqjQ4TdH5/RTZ0jTsKD/K+ww/eM4OaepMiwHoSb5 Pigebiu7ViM4hf58zO7vniENG2f/VZz3/uqQWZHzzowVdkAxoOeW0WVzevi0B/Ka+P/w bH5HcidWoqnl1ahKR+TamiRBR62Ig2nba2TkC86rrfqwamIKcRaNfI8GLPO8S2jSsgI1 ySJF8ZdZMHEcAARMpT5HqOzyGpQYH1G1y+oq9s4sruWXxFEVGn6idh5uBygKaC1ODFph os5Q== X-Gm-Message-State: AAQBX9d7+2CLVMtW05ns2V05jR6yuWtKWAxejiBqAOp2ZNakz7B9WuLJ fUlsLli/xLgAMoAEZSc+LrCIM6V48UsV0jblOFCd+dNrFzamRg== X-Google-Smtp-Source: AKy350ZXNpVrU0p5GPmIOTfZPwFPlbKArCIiUIOJtLP32aTVVMAnHi+ISw/V9VzhYRWH8KlTH3oZtKHsdrIWWfMN2N4= X-Received: by 2002:a1f:16c7:0:b0:40e:fee9:667a with SMTP id 190-20020a1f16c7000000b0040efee9667amr17536699vkw.3.1680384970932; Sat, 01 Apr 2023 14:36:10 -0700 (PDT) MIME-Version: 1.0 From: Rishi Raj Date: Sun, 2 Apr 2023 03:05:58 +0530 Message-ID: Subject: [GSOC] few question about Bypass assembler when generating LTO object files To: gcc@gcc.gnu.org, mjambor@suse.cz, hubicka@ucw.cz Content-Type: multipart/alternative; boundary="00000000000047451105f84d1d9a" X-Spam-Status: No, score=0.2 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,HTML_MESSAGE,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 List-Id: --00000000000047451105f84d1d9a Content-Type: text/plain; charset="UTF-8" Hii Everyone, I had already expressed my interest in the " Bypass assembler when generating LTO object files" project and making a proposal for the same. I know I should have done it earlier but I was admitted to the hospital for past few days :(. I have a few doubts. 1) "One problem is that the object files produced by libiberty/simple-object.c (which is the low-level API used by the LTO code) are missing some information (such as the architecture info and symbol table) and API of the simple object will need to be extended to handle that" I found this in the previous mailing list discussion. So who output this information currently in the object file, is it assembler? Also in the current patch for this project by Jan Hubica, from where are we getting these information from? Is it from crtbegin.o? 2) "Support in driver to properly execute *1 binary." I found this on Jan original patch's email. what does it mean exactly? Regards Rishi Raj --00000000000047451105f84d1d9a--