DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 51BKl1tu484063 Authentication-Results: delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com Authentication-Results: delorie.com; spf=pass smtp.mailfrom=cygwin.com DKIM-Filter: OpenDKIM Filter v2.11.0 delorie.com 51BKl1tu484063 Authentication-Results: delorie.com; dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=MzINDvQx X-Recipient: archive-cygwin AT delorie DOT com DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8AEE13858CDB DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1739306820; bh=3UTPIaMTjPy9OaCwo8fhpgceSwduTodTg04gYMmUIqM=; h=Date:Subject:To:References:In-Reply-To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=MzINDvQxK3YEfSa5SB89bjVBIXV+8HPFrKY0R60VwqLZEXv5+DKECKSR8Ibnw5MRa gpawvJibEjPs903Q/j9TgRlchgS/VmlR3YKEsqXUKbPq0cLuDKLPtir7T2KQC5hGCE GAlY4/ma1i8b61QVK3HtXRsmkcWjpap/Zf6VX3sE= X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 0F7C53858CD9 ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 0F7C53858CD9 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1739306762; cv=none; b=FuDwFyLQ/tKiJPzjjo4wgnZIS4mvzWJyOfLTiWdmlF0ofAtnxtJLOpwg6NZu6w/grEMa24hXIZMp+Ay7hMjp4Yx+H1bSLUrEpfne2hxbrzrDWOBTs1k69WaQgdwOBZkgVa5rFqW1j0/zUrLZzgarGyxcAedgoV/rt3fnZMTuQ28= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1739306762; c=relaxed/simple; bh=W1oTxto+RnS1JsmuZ5O3MdZeMhau0lHE0FPK0ZCj+dc=; h=Message-ID:Date:MIME-Version:From:Subject:To:DKIM-Signature; b=LarLG/MT+N0HqF2Q4e8lM8Sx+lY31G8+wkK3/9NxgBYWD3GtY9XfTSszXLU0AvqbgzEFZ5Y9WMS2jB7aDVKmOr7dwFXSwtV22q0FY3m+Uxg0Lba/dw2M8KmijV1tm2niM75pi5B2K6sBqQegFYCZn1Ap7lrQa4EX1mOJ06Q3fwM= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0F7C53858CD9 Message-ID: <6faedefc-eb17-4b02-89b9-44b73e82d43f@SystematicSW.ab.ca> Date: Tue, 11 Feb 2025 13:45:59 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: __builtin_thread_pointer Content-Language: en-CA To: cygwin AT cygwin DOT com References: <9c6a1ccc-d2fb-4aaf-b8c2-29574fa640b4 AT cornell DOT edu> Autocrypt: addr=Brian DOT Inglis AT SystematicSW DOT ab DOT ca; keydata= xjMEXopx8xYJKwYBBAHaRw8BAQdAnCK0qv/xwUCCZQoA9BHRYpstERrspfT0NkUWQVuoePbN LkJyaWFuIEluZ2xpcyA8QnJpYW4uSW5nbGlzQFN5c3RlbWF0aWNTdy5hYi5jYT7ClgQTFggA PhYhBMM5/lbU970GBS2bZB62lxu92I8YBQJeinHzAhsDBQkJZgGABQsJCAcCBhUKCQgLAgQW AgMBAh4BAheAAAoJEB62lxu92I8Y0ioBAI8xrggNxziAVmr+Xm6nnyjoujMqWcq3oEhlYGAO WacZAQDFtdDx2koSVSoOmfaOyRTbIWSf9/Cjai29060fsmdsDM44BF6KcfMSCisGAQQBl1UB BQEBB0Awv8kHI2PaEgViDqzbnoe8B9KMHoBZLS92HdC7ZPh8HQMBCAfCfgQYFggAJhYhBMM5 /lbU970GBS2bZB62lxu92I8YBQJeinHzAhsMBQkJZgGAAAoJEB62lxu92I8YZwUBAJw/74rF IyaSsGI7ewCdCy88Lce/kdwX7zGwid+f8NZ3AQC/ezTFFi5obXnyMxZJN464nPXiggtT9gN5 RSyTY8X+AQ== Organization: Systematic Software In-Reply-To: X-Rspamd-Queue-Id: 2CC0D2002B X-Rspamd-Server: rspamout04 X-Stat-Signature: k5pmhg9w7jbwsf5r3od3uw3yby6rgkqf X-Session-Marker: 427269616E2E496E676C69734053797374656D6174696353572E61622E6361 X-Session-ID: U2FsdGVkX19IMa7xyZAbpx0MK9yy7G5/87QDi7QV62g= X-HE-Tag: 1739306760-20003 X-HE-Meta: U2FsdGVkX1+Q/HEQdfdFnCj8VRw6f/XMNptzq7n4y+XPrcSeU1IYNTe9LTH+7a+o8OLE3vdHNboiczcrG3838IoqOxEPijlfc2EvereqK09ujQ5m3Au3+Vn0S+Lijy0FXJb2yDJbGNl8CwIXO+K4NL1Xve1UhUHA/gA7S68tw8y5seF6++Or/rXHVWlFPFLZm07vjnNn+qNeGl7AeCtdtj8q7Gca4H+x2tRapEAutTDLSs7MxZDTvTdfwG1maAmNOO+NuVm0+Ir7RmnXbaoDaUaQeY90/W3H3BG4n79MJJqJBAqPg9XArB5YEh0rbtxBv08S/aVsL1cS21kakGpBNadg3sTtUEYB X-BeenThere: cygwin AT cygwin DOT com X-Mailman-Version: 2.1.30 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Brian Inglis via Cygwin Reply-To: cygwin AT cygwin DOT com Cc: Brian Inglis Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com Sender: "Cygwin" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 51BKl1tu484063 On 2025-02-11 12:41, Dimitry Andric via Cygwin wrote: >> On 11 Feb 2025, at 20:26, Ken Brown via Cygwin wrote: >> Does Cygwin support __builtin_thread_pointer? I'm guessing not, because >> I'm getting a link error (undefined reference to >> `__builtin_thread_pointer') when I try to build some software that uses >> it. Or is there something that would have to be added to the link command >> line? The full command line and error message are quoted below, in case >> anyone spots something obvious. > It's a gcc builtin function, not something implemented in an external > library. Therefore, there is no linker option that can fix this. > Also, as far as I can see from gcc's documentation, > __builtin_thread_pointer() is only supported for the RISCV and SH > architectures. Then again, gcc's implementation seems to hinge this on > whether the platform supports TLS or not. > In any case, it is probably better to not use this function if your gcc does > not support it. Does `info gcc tls` help and do we know if that is supported by our gcc(s)? -- Take care. Thanks, Brian Inglis Calgary, Alberta, Canada La perfection est atteinte Perfection is achieved non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add mais lorsqu'il n'y a plus rien à retrancher but when there is no more to cut -- Antoine de Saint-Exupéry -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple