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([2607:fb90:b2e9:8e70:c45f:8832:c431:b7ce]) by smtp.gmail.com with ESMTPSA id a128sm82013350pfb.185.2019.08.01.15.54.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Aug 2019 15:54:43 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (1.0) Subject: Re: svn commit: r350505 - in head: contrib/binutils/binutils/doc gnu/usr.bin/binutils/objdump From: Enji Cooper X-Mailer: iPhone Mail (16F203) In-Reply-To: Date: Thu, 1 Aug 2019 15:54:42 -0700 Cc: Ian Lepore , src-committers , svn-src-all , svn-src-head Content-Transfer-Encoding: quoted-printable Message-Id: <9A3E35C8-7CB9-4E5C-92F4-367715A9909E@gmail.com> References: <201908011442.x71Egfa9047254@repo.freebsd.org> <23d23900d06581050562951f5cf6a625235a059f.camel@freebsd.org> To: Ed Maste X-Rspamd-Queue-Id: 4605GG2Dspz4M3Q X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=vZ1IHhS4; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of yaneurabeya@gmail.com designates 2607:f8b0:4864:20::429 as permitted sender) smtp.mailfrom=yaneurabeya@gmail.com X-Spamd-Result: default: False [-0.50 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; IP_SCORE_FREEMAIL(0.00)[]; RCPT_COUNT_FIVE(0.00)[5]; RCVD_COUNT_THREE(0.00)[3]; IP_SCORE(0.00)[ip: (-8.05), ipnet: 2607:f8b0::/32(-3.09), asn: 15169(-2.46), country: US(-0.05)]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RCVD_IN_DNSWL_NONE(0.00)[9.2.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; MV_CASE(0.50)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Aug 2019 22:54:47 -0000 > On Jul 31, 2019, at 19:58, Ed Maste wrote: >=20 >> On Thu, 1 Aug 2019 at 12:35, Ian Lepore wrote: >>=20 >> Why would we provide no objdump? I use it quite frequently; it seems >> like an essential part of the toolchain to me. >=20 > I don't want us to provide no objdump, but providing GNU objdump > 2.17.50 indefinitely is not a viable option; see PR 218387[1] for an > example of the kind of issue we have with providing obsolete software. >=20 > We have a choice of: > 1. provide llvm-objdump, and no /usr/bin/objdump in the base system > 2. install llvm-objdump as /usr/bin/objdump > 3. require that users who want an objdump install the binutils port >=20 > /usr/bin/objdump is not required by the base system build and not > required by most ports. exp-run details with no /usr/bin/objdump can > be found in PR 212319[2], and PR 229046[3] is a tracking PR for > removing dependencies on objdump. >=20 > Option 1 (removing /usr/bin/objdump) is proposed in review D7338[4] > while option 2 is (installing llvm-objdump as objdump) is proposed in > review D18307. llvm-objdump is roughly compatible with GNU objdump > (command line and output format) but there are a large number of small > issues that will likely trip up scripted or automated objdump use. > (Scripts should probably just use readelf instead, though.) D18307 has > a list of LLVM bug reports for known issues in llvm-objdump. >=20 > Note also that we currently provide only two or three obsolete > binutils, depending on the CPU architecture: > - as > - ld > - objdump >=20 > [1] https://bugs.freebsd.org/218387 > [2] https://bugs.freebsd.org/212319 > [3] https://bugs.freebsd.org/229046 > [4] https://reviews.freebsd.org/D7338 > [5] https://reviews.freebsd.org/D18307 Thought: could this be modified in an iterative manner, like =E2=80=9Cobjdum= p=E2=80=9D -> =E2=80=9Cgobjdump=E2=80=9D / =E2=80=9Cllvm-objdump=E2=80=9D ->= =E2=80=9Cobjdump=E2=80=9D, etc (assuming llvm and gnu objdump are largely c= ompatible)? Thanks :)! -Enji=