public inbox for gcc-prs@sourceware.org help / color / mirror / Atom feed
From: pfeifer@dbai.tuwien.ac.at To: gcc-gnats@gcc.gnu.org Cc: ljrittle@acm.org Subject: c++/6611: Non-weak emission of `std::__default_alloc_template[...]' on platform(s) where it should be weak Date: Thu, 09 May 2002 02:16:00 -0000 [thread overview] Message-ID: <20020509090652.16459.qmail@sources.redhat.com> (raw) >Number: 6611 >Category: c++ >Synopsis: Non-weak emission of `std::__default_alloc_template[...]' on platform(s) where it should be weak >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Thu May 09 02:16:00 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Gerald Pfeifer, abstracted from confidential source by Loren Rittle >Release: mainline >Organization: >Environment: i386-*-freebsd4.5 (by Loren) i386-*-freebsd* (by Gerald) i386-*-*linux* (by Gerald) (some confusion, but I have never seen this issue with 3.1) >Description: The original test case is a large C++ program. The failure seen is a non-mergeable, duplicate template instantiation of an implementation class in the libstdc++-v3. Depending on the exact order of method definitions (i.e. somewhat fragile test case) and exactly what is being instantiated, under some conditions, std::__default_alloc_template<(bool)1, (int)0>::allocate(unsigned) is emitted as a text reference instead of a weak reference. >How-To-Repeat: Run these commands: g++ -c -Wall -O1 planY.C -o planY.o nm -C planY.o | grep allocate See: 000006c4 T std::__default_alloc_template<(bool)1, (int)0>::allocate(unsigned) This should be a weak (W) not a text (T) reference. >Fix: >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: application/octet-stream; name="planY.C" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="planY.C" Ly8gUnVuIHRoZXNlIGNvbW1hbmRzOgovLyBnKysgLWMgLVdhbGwgIC1PMSAgcGxhblkuQyAtbyBw bGFuWS5vOyBubSAtQyBwbGFuWS5vIHwgZ3JlcCBhbGxvY2F0ZQovLyBTZWU6Ci8vIDAwMDAwNmM0 IFQgc3RkOjpfX2RlZmF1bHRfYWxsb2NfdGVtcGxhdGU8KGJvb2wpMSwgKGludCkwPjo6YWxsb2Nh dGUodW5zaWduZWQpCi8vIFRoaXMgc2hvdWxkIGJlIGEgd2VhayAoVykgbm90IGEgdGV4dCAoVCkg cmVmZXJlbmNlLgovLwovLyBUaGlzIHRlc3QgY2FzZSB3YXMgYWJzdHJhY3RlZCBieSBMSlIgZnJv bSBhIGxhcmdlIHByb2dyYW0gc3VibWl0dGVkCi8vIGJ5IEdlcmFsZCBQZmVpZmVyIDxwZmVpZmVy QGRiYWkudHV3aWVuLmFjLmF0Pi4gIEF0IHRoaXMgdGltZSwgaXQgaXMgdW5rbm93bgovLyB3aGV0 aGVyIHRoZSBsaWJyYXJ5IGltcGxlbWVudGF0aW9uLCBnKysgb3IgdmFyaW91cyBwb3J0cyBjYXVz ZSB0aGlzLgoKI2luY2x1ZGUgPHZlY3Rvcj4KCmNsYXNzIFBOCnsKICBzdGQ6OnZlY3RvcjxpbnQ+ IHR5cGVzOwoKcHVibGljOgogIGJvb2wgdGVzdFAoc3RkOjpzaXplX3QgaW5kZXgpIGNvbnN0IHsg cmV0dXJuICh0eXBlc1tpbmRleF0pOyB9Cn07CgpjbGFzcyBJRAp7CiAgaW50IHR5cGU7CiAgaW50 IGRhdGE7CgpwdWJsaWM6CiAgSUQoY29uc3QgSUQmIGlkZW50KSA6IHR5cGUoaWRlbnQudHlwZSks IGRhdGEoaWRlbnQuZGF0YSkge30KICBJRChjb25zdCBpbnQgbnVtYmVyKSA6IHR5cGUgKDApLCBk YXRhIChudW1iZXIpIHt9CiAgfklEKCkge30KfTsKCnR5cGVkZWYgc3RkOjp2ZWN0b3I8aW50PiBJ RFM7CnR5cGVkZWYgc3RkOjpwYWlyPElELCBib29sPiBHUjsKCnN0YXRpYyBzdGQ6OnZlY3Rvcjxz dGQ6OnZlY3RvcjxJRCo+Ojpjb25zdF9pdGVyYXRvcj4gaTJoQWdncmVnYXRlRnVuY3Rpb25UYWJs ZTsKCmNsYXNzIEFBCnsKICBJRCAqYWdncmVnYXRlRnVuY3Rpb247CiAgdW5zaWduZWQgYWdncmVn YXRlRnVuY3Rpb25JbmRleDsKICBHUiBsb3dlckd1YXJkOwogIEdSIHVwcGVyR3VhcmQ7CgogIGNv bnN0IElEICZnZXRBZ2dyZWdhdGVGdW5jdGlvbkZyb21IVGFibGUoKSBjb25zdDsKICBJRCogZ2V0 QWdncmVnYXRlRnVuY3Rpb25Gcm9tSFRhYmxlUHRyKCkgY29uc3QKICB7CiAgICByZXR1cm4gKCAq aTJoQWdncmVnYXRlRnVuY3Rpb25UYWJsZVthZ2dyZWdhdGVGdW5jdGlvbkluZGV4XSApOwogIH0K ICAgIApwdWJsaWM6CiAgQUEoKTsKICBBQShjb25zdCBBQSYgYTIpCiAgICA6IGFnZ3JlZ2F0ZUZ1 bmN0aW9uKDApLCBhZ2dyZWdhdGVGdW5jdGlvbkluZGV4KGEyLmFnZ3JlZ2F0ZUZ1bmN0aW9uSW5k ZXgpLAogICAgICBsb3dlckd1YXJkKGEyLmxvd2VyR3VhcmQpLCB1cHBlckd1YXJkKGEyLnVwcGVy R3VhcmQpCiAgewogICAgaWYgKCBhMi5hZ2dyZWdhdGVGdW5jdGlvbiApCiAgICAgIGFnZ3JlZ2F0 ZUZ1bmN0aW9uID0gYTIuYWdncmVnYXRlRnVuY3Rpb247CiAgICBlbHNlCiAgICAgIGFnZ3JlZ2F0 ZUZ1bmN0aW9uID0gbmV3IElEKCphMi5nZXRBZ2dyZWdhdGVGdW5jdGlvbkZyb21IVGFibGVQdHIo KSk7CiAgfQogIH5BQSgpIHt9Cn07CgpjbGFzcyBBVAp7CiAgc3RkOjpzaXplX3QgcF9pbmRleDsK ICBJRFMqIHBhcmFtczsKICBBQSogYWdncmVnYXRlOwogIHN0YXRpYyBQTiBQcmVkaWNhdGVzOwoK ICB2b2lkIHNldFBhcmFtcyhjb25zdCBJRFMgKnBhcmFtczIpCiAgewogICAgaWYoIHBhcmFtczIg KQogICAgICBwYXJhbXM9bmV3IElEUygqcGFyYW1zMik7CiAgICBlbHNlCiAgICAgIHBhcmFtcz0w OwogIH0KICB2b2lkIHNldEFnZ3JlZ2F0ZShjb25zdCBBQSAqYWdncmVnYXRlMikKICB7CiAgICBp ZiggYWdncmVnYXRlMiApCiAgICAgIGFnZ3JlZ2F0ZT1uZXcgQUEoKmFnZ3JlZ2F0ZTIpOwogICAg ZWxzZQogICAgICBhZ2dyZWdhdGU9MDsKICB9CgpwdWJsaWM6CiAgQVQoY29uc3QgQVQgJmF0b20y KSA6IHBfaW5kZXgoYXRvbTIucF9pbmRleCksIHBhcmFtcygwKSwgYWdncmVnYXRlKDApCiAgewog ICAgaWYoIGF0b20yLnRlc3RQKCkgKQogICAgICBzZXRBZ2dyZWdhdGUoYXRvbTIuYWdncmVnYXRl KTsKICAgIGVsc2UKICAgICAgc2V0UGFyYW1zKGF0b20yLnBhcmFtcyk7CiAgfQogIEFUKGNvbnN0 IEFBICZhZ2dyZWdhdGUyKSA6IHBfaW5kZXgoMCksIHBhcmFtcygwKQogIHsKICAgIHNldEFnZ3Jl Z2F0ZSggJmFnZ3JlZ2F0ZTIgKTsKICB9CiAgfkFUKCkge30KCiAgYm9vbCB0ZXN0UCgpIGNvbnN0 IHsgcmV0dXJuIFByZWRpY2F0ZXMudGVzdFAocF9pbmRleCk7IH0KfTsKClBOIEFUOjpQcmVkaWNh dGVzOwoKY2xhc3MgS0FUCnsKICBJRFMgKnBhcmFtczsKICBBVCAqYXRvbTsKCnB1YmxpYzoKICBL QVQoY29uc3QgSURTKiBwYXJhbXMyKSA6IHBhcmFtcyhwYXJhbXMyID8gbmV3IElEUygqcGFyYW1z MikgOiAwKSwgYXRvbSgwKSB7fQogIEtBVChjb25zdCBLQVQmIGMpIDogcGFyYW1zKDApLCBhdG9t IChjLmF0b20gPyBuZXcgQVQoKihjLmF0b20pKSA6IDApIHt9CiAgfktBVCgpIHt9Cn07CgpjbGFz cyBSVUwKewogIEtBVCAqY2F1c2VkOwoKcHVibGljOgogIFJVTCgpOwogIFJVTChjb25zdCBSVUwm IHJ1bCkgOiBjYXVzZWQgKHJ1bC5jYXVzZWQgPyBuZXcgS0FUKCoocnVsLmNhdXNlZCkpIDogMCkg e30KICB+UlVMKCkge30KfTsKClJVTDo6UlVMICgpIDogY2F1c2VkKDApIHt9CgpzdGQ6OnZlY3Rv cjxSVUw+IHJ1bHM7IAoKdm9pZApiYXIoKQp7CiAgcnVscy5wdXNoX2JhY2soUlVMKCkpOwp9Cgpp bnQgbWFpbigpCnsKICBLQVQqIGsgPSBuZXcgS0FUKDApOwogIGJhcigpOwogIHJldHVybiAwOwp9 Cg==
next reply other threads:[~2002-05-09 9:16 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-05-09 2:16 pfeifer [this message] 2002-05-15 5:14 bkoz 2002-09-13 7:27 nathan 2002-09-13 8:01 gerald
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20020509090652.16459.qmail@sources.redhat.com \ --to=pfeifer@dbai.tuwien.ac.at \ --cc=gcc-gnats@gcc.gnu.org \ --cc=ljrittle@acm.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).