wireguard-openbsd/lib/csu/hppa, branch master WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/lib/csu/hppa?h=master 2020-10-15T16:30:21Z crt0 MD _dl_exit() performs syscall to SYS_exit directly, but then 2020-10-15T16:30:21Z deraadt deraadt@openbsd.org 2020-10-15T16:30:21Z urn:sha1:2bc3a8c076b486ad5cb1adf52ac1373fba054b0a some of these functions were returning. That makes the +1word address a fairly strong and easily located gadget. Put a hard-trap instruction after the syscall. This remains a gadget for 'terminal system' calls (such as execve), but hey that's why we have pledge w/o "exec" throughout the tree. Quite surprisingly, hppa's delay-slot load of SYS_exit makes it the safest of the bunch, not that this helps anyone. ok kettenis use symbolic SYS_exit instead of the value 1 2020-10-14T22:11:18Z deraadt deraadt@openbsd.org 2020-10-14T22:11:18Z urn:sha1:9c558c1181d4532fa3a04595bff127adc23ef057 ok kettenis _dl_printf is no longer referenced by RELOC_{JMPREL,DYN,GOT}; delete the stub 2017-08-11T20:13:30Z guenther guenther@openbsd.org 2017-08-11T20:13:30Z urn:sha1:344baaa7369214af57d570c2005bb07927710f77 ok kettenis@ Our certbegin/certend is always PIC, so remove the non-PIC MD_SECT_CALL_FUNC() 2017-02-26T22:26:42Z kettenis kettenis@openbsd.org 2017-02-26T22:26:42Z urn:sha1:920eed1a4a939da04e8d182d011fb3796a8790e6 implementations. ok guenther@ Fix misspelling in comment 2017-01-21T01:43:16Z guenther guenther@openbsd.org 2017-01-21T01:43:16Z urn:sha1:87e2f33be64be7aa86d5a259b3cbaf7571076be0 Declare the symbols that label the .ctors, .dtors, .eh_frame, and .jcr 2017-01-21T00:45:13Z guenther guenther@openbsd.org 2017-01-21T00:45:13Z urn:sha1:b3fe29f4687edf2be8c3fc3433d38bd40593a33b sections as extern hidden arrays of indefinite size, so that the compiler (well, clang) doesn't believe it knows the exact contents and thus optimize things into infinite loops. Actually set the symbols to be in the sections and insert the leading and trailing values via __asm(). Problem pointed out by patrick@ testing and ok kettenis@ Rearrange C runtime bits: now that ld.so exports environ and __progname, 2016-03-20T02:32:39Z guenther guenther@openbsd.org 2016-03-20T02:32:39Z urn:sha1:5af055cd66b5450a4935ae30e5716331ca3b13d5 move their definitions and initialization in static links to libc.a Make crt0 always invoke a new func _csu_finish() in libc to process the auxv and to either register the ld.so cleanup function (in dynamic links) or initialize environ and __progname and do MC_DISABLE_KBIND (in static links). In libc, get pagesize from auxv; cache that between getpagesize() and sysconf(_SC_PAGESIZE) ok mpi@ "good time" deraadt@ crt0.c is already setting environ, so don't set it in MD_START_SETUP 2016-03-13T18:35:02Z guenther guenther@openbsd.org 2016-03-13T18:35:02Z urn:sha1:d5d4315e3de48ca679294ba47062c7faaac64e04 ok kettenis@ mpi@ In static binaries, invoke kbind() once to disable it. 2015-09-01T05:40:06Z guenther guenther@openbsd.org 2015-09-01T05:40:06Z urn:sha1:0a8a9c346022d9ea9d2d120f75edf8549c4915cf With much assistance from miod@ ok deraadt@@ Set up the linkage table register (%r19) before calling _dl_boot_bind. 2014-12-23T12:25:43Z kettenis kettenis@openbsd.org 2014-12-23T12:25:43Z urn:sha1:ed3c11e09db899537f0ef6708a7134947b327f25