Date: Mon, 20 Nov 2017 01:09:57 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-toolchain@FreeBSD.org Subject: [Bug 223752] clang __attribute__((constructor)) gets wrong input parameters Message-ID: <bug-223752-29464-SpmQ9oefrE@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-223752-29464@https.bugs.freebsd.org/bugzilla/> References: <bug-223752-29464@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D223752 --- Comment #13 from Mark Millard <markmi@dsl-only.net> --- (In reply to dstaesse from comment #10) The materials that you have referenced indicate that __attribute__ ((constructor)) gets no arguments. Details follow. >From the materials you referenced: QUOTE The .preinit_array and .init_array sections must contain function pointers = (NOT code!) The prototype of these functions must be void func(int argc,char** argv,char** envp) __libc_csu_init execute them in the following order: Function pointers in .preinit_array section Functions marked as __attribute__ ((constructor)), via _init Function pointers in .init_array section END QUOTE Note that __attribute__ ((constructor)) is not for the *init_array usage, just for usage inside _init . And from the elf-init.c that you listed: #ifndef NO_INITFINI _init (); #endif has no arguments. So, __attribute__ ((constructor)) routines are called form a context not explicitly having the erguments available. --=20 You are receiving this mail because: You are the assignee for the bug.=
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