From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL autolearn=ham autolearn_force=no version=3.4.2 Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by inbox.vuxu.org (OpenSMTPD) with SMTP id d2d89004 for ; Thu, 6 Feb 2020 01:12:51 +0000 (UTC) Received: (qmail 26031 invoked by uid 550); 6 Feb 2020 01:12:49 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Reply-To: musl@lists.openwall.com Received: (qmail 26008 invoked from network); 6 Feb 2020 01:12:48 -0000 To: musl@lists.openwall.com References: <294c4c13f86c6f9ea3593309458bcb75a1d5d9e8.camel@fahlgren.se> <20200205192756.GC1663@brightrain.aerifal.cx> <7c6d2ddc-99ba-4f82-c1dc-5114e7b8f69e@adelielinux.org> <20200206001717.GE1663@brightrain.aerifal.cx> From: "A. Wilcox" Autocrypt: addr=awilfox@adelielinux.org; prefer-encrypt=mutual; keydata= mQINBE+DjPIBEADTQ1H/e/avDUhgt8+T3TJpjGYoY9Y47EMfHqWMm9LjR9aiZSG6GWRbpjWS 4V0DqzIhNQw7HLkPws9CVqQkmpIeltQyGDV2qcR5AXxJ4lCRWHxwRzWE0cCzhLUR9BBWOO0U NINQY+2IqmzRAqXZ9zL+mGTles/qeheXmaWLKf/T0kqJFihoM+ItQvUWOkWUdVv0prhzXr9Q QUdt0NTIW8n4sPwtuSvQgqwSzCJQArh1myugVSGiIIN38pCU8g41Vh35mHHhbHjbn0o1mhrX B/gbsndGo7QQBKz4CPaSel+Fl92dCvVWTp1XYyjqeZx2xlx1zfDrXOTuzY1WmNHi7BgHYuem tG7Zyp7u9MR6FvLKgQhmvCQZXaa+9oNtwKckxoP/I5R8ede9YRb6pLyG5JC0pTTk7kpUZCX2 tm8pLKy899zomm8BBm71aEJHE44ABEl/PbM7tA7XhSPiWsdBmVCxH4bqpUgGMx0ztqhNsUul SDDhiAWgtYFHATynhmeKBDKthkO7lj4CzwI54dn1uiwDtvUFVyVsPMjJcCxFnONbOPcvm1R9 sDg5sn57dv0f+EtaU3ppZdotutjM9X7OEC93d1flO3k1LO20qn2ZcI24f3tEOLAjn5xZ1GdV 3BYBwrtuaaiO8tMdp0uAtILzkkrcr0vOi2/SngxtXFw+44X+WQARAQABtDNBLiBXaWxjb3gg KEFkw6lsaWUgTGludXgpIDxhd2lsZm94QGFkZWxpZWxpbnV4Lm9yZz6JAjoEEwEIACQCGwMF CwkIBwIGFQgJCgsCBBYCAwECHgECF4AFAlhEpGYCGQEACgkQyynLUZIrnRQu5RAAqxHJdNIQ ucYYUaYX4EHJte4OAZbxXeGgMi4fe4m2qkMrd8U6VDfRbjsqETK7fOJdrIjvp+xrMTMvj36C LZ5YuBVmvTd4+Qn54y+8doMUtZppjW9Njwols3zCeaZR/4Iid2GjS7+avgVEhMuxlo5apygb n84VhdLRPAs2BtyqUWUhlLs2nXg6kzI/yT8frGGCN36Xewe35jrhl7h4d54t7h+wYcYw52Yt GHs/R+yPlCGPrlzh8IGwjDWDaUrQAqWdU3B2UG4g/yn/JYZrkvfbm7AhpBP5trY2jbm7sfTM NoClDDwgf0K8Kfj0LeBUzOLqGgQNBdaJ2x7f1xq5tJjAPmVL6oMElqyDz9ycUXvelLMnxgXI sjndF+K1aKjg6Ok68BfTo+tnUqmEjqAhjLBCSphQJavww8pU9KSPmxOr0GfjoiYELeoCdTe2 U44bhFwCcf5tG1qdu8l4pes1YPRVAVyr4J/BlS2e3FyU3MsYlma9toYghJZ0k9dVOqx5YXj9 B2keDpX1D7uEJUHpoRSPylLYKJCcNuzrsaK0gvczkgUvhaiij8qnlLEmDsv7KMdsv+qxknNC vdCBgoiYn01ZJZJrlllOEXpVAXfQDKcqGnIJ4GX87TIu3hR94tw4LOCayfRpN2Y4zlACPLaZ KiSon4ySDo+ooYQ8WgwH1y1ESsa5Ag0ET4OM8gEQAOI/n9h9v2TBOiLUt/nL+HOdxqvkfrKp mDHXx6ctJSm0VBHhHCxKN6Tk2B0BsUXcgR+BD76Tw4kTQvuj3E87m13xHRtASdCmnkvGhU4c JJ9ZbJbJhPLNr9qPUxwCQxFyMrFri/9GnE0Kbv5FfxsLQy9Slubnyg3CfI/wIP5pOoVFA2qI UmsQS155DmhbV2m0FDf0san01ZRMFYVcUUktcmFo0Xmr6PAxZ0FTaxSF8+921lKrvShcsnMv Osrf5toJGEdQw/IMO5rKH1m+q3qWQAOw4uF4WQJrGvhEsVK8G4mC6EBDTbxFVDtyBTMAGUVS t+Yb5i0iIYiMAP2MEJ+twg58PV+5RglheTGP9iPW0xReI1sOD9jfIrQbwqWpOchDGBUpQx4q DFYzzcbjvAP1k2o0mwMby5DJlVwktUiXXtOWZXKZXfTnCA65x1bC6gbtMrXN1CWkyjKT9xj9 Z5WlpZaeqe2SZkLG3/N7r4bSbw/Z6NsYeJ8CpSe6SfoWSsjebD6kbXlF5dsQf8aMUjaZAHp0 UpinfgWNh+58128yddsRMsidjU/MmwhzcRFsvn3rkgtnK4IwpLEfssChNPa26qwfcsvQ+AQU CCRd/GIZ8AkOVySQ30J8Assa/T3nc6VNKRVgsAiSClkeqVevAZmUMUbvH8f3cTe1VFn6kR3q pvfTABEBAAGJAh8EGAECAAkFAk+DjPICGwwACgkQyynLUZIrnRQifQ//f++reIP4el9Un1w4 11boSy1iBALnv58YSQQHPIZ4dq5hr8P1Hp3GDz+o6JFKeIHq5RYw2ornumS9waDbz7dRD1nc N5sMoVfR2g2P7honq59r3velxX36PmifHMmxb8MTqbCSJJRisqjWTMg7CZxH0NQ28qMtpiAw kvoEb+l2Uc/gKnvcpPfVJ/X0b3go0xAe9GA7Os9thjtl1v+I7c2+xjPUtvv+pDGRb9To2+Sw zOGwogbTrVw7KgAFhktx6i8tenXZRf36O0GTACRY//qHNoNNy5H4LYmfyHj6VU2ehwNJTlkK H/8oYV7fkOdcs6DZAnxeiOXUKpHC6ck0D0sWQ42GTeEraospQevGTrp1FZdYnfXznUFXuC6W jHR9piQehutMJ1vCP+DIRLGOMzV1TFWflpo71lb4AFLU3UOS/N7Cd8F+w1nG3WPn7UjFCMrc Xf268AEe0xwakXgNtwo2MTbtQSAO5AKYyGm/hnoLZg4YQ2eBPU95jUV+GMoEM/8Q0BJgsyF0 66NfhBXtuo50AipcARmnoqi6NDOKpC6mqiEYGsVuyQ9cRtkk9Jl98tXmnjxQlSL2nb4ErwJJ SyJq3hwiKMUJcw88IRNtYBe+dXaW4kDBTRha1k+brWZbu4tUlRWLVcSGjtP1pVukXA/SQ6a1 N7qhRF0UHQZkMW1rGbU= Organization: =?UTF-8?Q?Ad=c3=a9lie_Linux?= Message-ID: <51a79a3e-f83c-8882-b883-4c6e72f6cfe4@adelielinux.org> Date: Wed, 5 Feb 2020 19:12:30 -0600 User-Agent: Mozilla/5.0 (X11; Linux ppc64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200206001717.GE1663@brightrain.aerifal.cx> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="0WAU02pNzEtYbvzr6Qo70B7HxQd9lFxGI" Subject: Re: [musl] [PATCH] add support for pthread_sigqueue This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --0WAU02pNzEtYbvzr6Qo70B7HxQd9lFxGI Content-Type: multipart/mixed; boundary="L33k0yE47WWlbSqW3tJSTRcGvFUar99WI" --L33k0yE47WWlbSqW3tJSTRcGvFUar99WI Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 05/02/2020 18:17, Rich Felker wrote: > On Wed, Feb 05, 2020 at 05:06:11PM -0600, A. Wilcox wrote: > This is not a difference in the signature; the constness in the > declaration is meaningless (explicitly ignored by the language). In > the definition, it causes the local variable corresponding to the > argument to be const, but that's not terribly useful. Sorry, I was confused and thought it was a pointer type. Disregard. >> It is implemented not only in glibc, but additionally in Solaris 11: >> >> https://docs.oracle.com/cd/E88353_01/html/E37843/pthread-sigqueue-3c.h= tml >=20 > Without _np -- interesting. I'm not opposed if this seems to be the > consensus. Notably, no one in the BSD family has implemented it. I have not found any discussion of this interface on the Austin Group defect tracker. It is a very recent addition to Solaris =E2=80=93 appearing to have been add= ed last year. WebKit's JSC mentions the desire to utilise this interface in a comment but stops short of actual use due to portability concerns. Firefox appears to use this interface for a test case for its sandbox, on glibc hosts only. Intriguingly, Xenomai does define the interface, but as pthread_sigqueue_np. The only seemingly-legitimate use of this interface comes from a perplexingly wrong usage in Intel's graphics driver toolset at: https://cgit.freedesktop.org/xorg/app/intel-gpu-tools/tree/lib/igt_core.c= ?id=3D497e13d2b4#n2465 =2E..where they call pthread_sigqueue only if the system is /not/ Linux. I would assume this would break the build on FreeBSD, but perhaps they don't support these tools on non-Linux platforms. If that's the case, then I'm not sure why this code block even exists. Best, --arw --=20 A. Wilcox (awilfox) Project Lead, Ad=C3=A9lie Linux https://www.adelielinux.org --L33k0yE47WWlbSqW3tJSTRcGvFUar99WI-- --0WAU02pNzEtYbvzr6Qo70B7HxQd9lFxGI Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEjNyWOYPU1SaTSMHHyynLUZIrnRQFAl47Z/4ACgkQyynLUZIr nRTQfxAAkx6rxewEvJqMiEbipZ8fw0Hk/O1bT3AlPhE/4rniiASEOsNil7giFiq2 oYrWsEneEQPuV73tMht4KgnXjBFY8T1BjFXsmTLYfrpX54GtHWGp+Ya1fW8nVdku yY0IuyGGo3XijDtHYkdOJhD4fojT9AmWhvNycNQ8Yghflk2kKnqliCTlxAxqNH6u glkbuRtzkE62e3McOlt8lE1ue/5Rg8M/qizPeOTZlOQoqnkM3ofvWCZC0BWjVMbs Jl+C/gMBpaCw7e4Xsb1w6BPFqnFXq95+itFpYXAAVmvdJnbcSSOuXxw977z9g47A gm6w1vwjT35gJa11avSQ6xSsTQWDVOg86TLh7bunxTc+RGx88Xx2wuRn9X7ne+q5 JkeyxtAA7bf8WBgjT3C6S7uD5HGf81u9LNq7tQrRB9x2BFG9Rf0+BPFct4srDyW/ ijaBMJcEoV62kEnEs6KyOtH99KPPHi9V69ghYlLM2xRbc8oGJXp0B7sBGlB+e8rb O08FglM1Rss9KZyfbNm/X9y2EYQyP7KpkiifWhkYs6uC6s8MnH0CeP/Niby3bTiM 44Sr4tGhT7DbQ1jgquutSlvUZMDvPjI05+zdOd/nMNUsBdmNXHqVGPKDKJhVfSRG E9y6j0y9/kWrjbYVE1NmHWFnvecXvChGh8SgJ46bcDZ5rM+cppw= =rVA+ -----END PGP SIGNATURE----- --0WAU02pNzEtYbvzr6Qo70B7HxQd9lFxGI--