FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F10.2 2015-04-28T12:48:30Z 2015-04-28T12:48:30Z Ed Maste emaste@FreeBSD.org 2015-04-28T12:48:30Z urn:sha1:391bd93d91f956b9017d58a1745432b35df88a78 This is only an interim fix; MIPS should be using the MI code instead, which does not have this issue. 2014-09-12T16:22:01Z Konstantin Belousov kib@FreeBSD.org 2014-09-12T16:22:01Z urn:sha1:36b9190bd1d13ee0436ee2f6b0d51493027c80a8 Process STT_GNU_IFUNC when doing non-plt relocations. MFC r270802: Only do the second pass over non-plt relocations when the first pass found IFUNCs. Approved by: re (gjb) 2012-03-23T17:54:06Z Oleksandr Tymoshenko gonzo@FreeBSD.org 2012-03-23T17:54:06Z urn:sha1:bbc54af80edcfdcd8f2e61422d0fd9a2fe0addf5 to let backtracing routine know to go no further. 2012-03-20T13:20:49Z Konstantin Belousov kib@FreeBSD.org 2012-03-20T13:20:49Z urn:sha1:082f959ac8281d323f9289c45b769275e172c917 Do not relocate twice an object which happens to be needed by loaded binary (or dso) and some filtee opened due to symbol resolution when relocating need objects. Record the state of the relocation processing in Obj_Entry and short-circuit relocate_objects() if current object already processed. Do not call constructors for filtees loaded during the early relocation processing before image is initialized enough to run user-provided code. Filtees are loaded using dlopen_object(), which normally performs relocation and initialization. If filtee is lazy-loaded during the relocation of dso needed by the main object, dlopen_object() runs too earlier, when most runtime services are not yet ready. Postpone the constructors call to the time when main binary and depended libraries constructors are run, passing the new flag RTLD_LO_EARLY to dlopen_object(). Symbol lookups callers inform symlook_* functions about early stage of initialization with SYMLOOK_EARLY. Pass flags through all functions participating in object relocation. Use the opportunity and fix flags argument to find_symdef() in arch-specific reloc.c to use proper name SYMLOOK_IN_PLT instead of true, which happen to have the same numeric value. Reported and tested by: theraven Reviewed by: kan MFC after: 2 weeks 2012-03-12T20:59:18Z Oleksandr Tymoshenko gonzo@FreeBSD.org 2012-03-12T20:59:18Z urn:sha1:0bf18978327f69c19a6ffa457c160d598034b930 2012-03-12T20:58:09Z Oleksandr Tymoshenko gonzo@FreeBSD.org 2012-03-12T20:58:09Z urn:sha1:7730e5971e2b5b925ada0052e40de0ede16e4650 Spotted by: juli 2012-03-12T20:24:59Z Oleksandr Tymoshenko gonzo@FreeBSD.org 2012-03-12T20:24:59Z urn:sha1:33ddd0f61a13ac323249f9a4afad7158596c9f7e space to be reserved for them in stack. _rtld() prologue saves a1 and a2 in this space. - Whitespace cleanup while I'm at it 2012-03-11T20:03:09Z Konstantin Belousov kib@FreeBSD.org 2012-03-11T20:03:09Z urn:sha1:83aa9cc00c2d83d05a0efe7a1496d8aab4a153bb particular on ARM, do require working init arrays. Traditional FreeBSD crt1 calls _init and _fini of the binary, instead of allowing runtime linker to arrange the calls. This was probably done to have the same crt code serve both statically and dynamically linked binaries. Since ABI mandates that first is called preinit array functions, then init, and then init array functions, the init have to be called from rtld now. To provide binary compatibility to old FreeBSD crt1, which calls _init itself, rtld only calls intializers and finalizers for main binary if binary has a note indicating that new crt was used for linking. Add parsing of ELF notes to rtld, and cache p_osrel value since we parsed it anyway. The patch is inspired by init_array support for DragonflyBSD, written by John Marino. Reviewed by: kan Tested by: andrew (arm, previous version), flo (sparc64, previous version) MFC after: 3 weeks 2012-03-06T03:27:08Z Oleksandr Tymoshenko gonzo@FreeBSD.org 2012-03-06T03:27:08Z urn:sha1:0a0f480835897ef7d079a391e15598fdf338aae7 2012-02-11T00:54:57Z Oleksandr Tymoshenko gonzo@FreeBSD.org 2012-02-11T00:54:57Z urn:sha1:b098345b9e05a59f3289a4f67c0a61b638f5d39f