February 2014 - Darwin-dev - lists.apple.com

Re: Can a dylib have an entry point?
by Ariel Burton 18 Feb '14

18 Feb '14

Hi Jens, That assumes the loader will the load process to progress that far. Ariel == On Tue 18 Feb 10:00, Jens Alfke wrote: > I'm pretty sure it can, since there are language facilities for making functions run when the code is loaded — Clang and GCC's C compilers have __attribute((constructor)), and C++ of course has static initializers. > > —Jens _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Re: Can a dylib have an entry point?
by Shantonu Sen 18 Feb '14

18 Feb '14

that’s an initializer function(s), which are run when dyld loads the library. However the kernel will never execve(2) a Mach-O file of dylib type, so the usage describe is not possible. Shantonu On Feb 18, 2014, at 9:00 AM, Jens Alfke <jens(a)mooseyard.com> wrote: > I'm pretty sure it can, since there are language facilities for making functions run when the code is loaded — Clang and GCC's C compilers have __attribute((constructor)), and C++ of course has static initializers. > > —Jens > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/darwin-dev/ssen%40apple.com > > This email sent to ssen(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Re: Can a dylib have an entry point?
by Jens Alfke 18 Feb '14

18 Feb '14

I'm pretty sure it can, since there are language facilities for making functions run when the code is loaded — Clang and GCC's C compilers have __attribute((constructor)), and C++ of course has static initializers. —Jens _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Can a dylib have an entry point?
by ariel.burton＠roguewave.com 18 Feb '14

18 Feb '14

Hi, ELF-like systems, particularly linux, allow a shared library to have an entry point. This allows a library to be constructed so that it emits, say, version information if it's executed. This is an example from linux: % /lib/libc.so.6 GNU C Library development release version 2.4 (20060428), by Roland McGrath et al. Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Configured for i686-suse-linux. Compiled by GNU CC version 4.1.0 (SUSE Linux). Compiled on a Linux 2.6.16 system on 2006-04-28. Available extensions: crypt add-on version 2.1 by Michael Glad and others GNU Libidn by Simon Josefsson GNU libio by Per Bothner NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk NoVersion patch for broken glibc 2.0 binaries Native POSIX Threads Library by Ulrich Drepper et al BIND-8.2.3-T5B Thread-local storage support included. For bug reporting instructions, please see: <http://www.gnu.org/software/libc/bugs.html>. Is there a way to do something similar with a .dylib on darwin/macos? Thanks, Ariel Burton _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Async UDP socket and ICMP error detection
by Frédéric Germain 10 Feb '14

10 Feb '14

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Re: Customized package
by Rakesh Singhal 05 Feb '14

05 Feb '14

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Customized package
by Rakesh Singhal 04 Feb '14

04 Feb '14

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