wireguard-openbsd/lib/libc/sys/stack_protector.c, branch jd/queueboostsWireGuard implementation for the OpenBSD kernelhttps://git.zx2c4.com/wireguard-openbsd/atom/lib/libc/sys/stack_protector.c?h=jd%2Fqueueboosts2017-11-29T05:13:57Zclang doesn't propagate attributes like "asm labels" and "visibility(hidden)"2017-11-29T05:13:57Zguentherguenther@openbsd.org2017-11-29T05:13:57Zurn:sha1:ea6088e7d368d53c49ebfdf4520275cec2f78f5b
to builtins like mem{set,cpy,move} and __stack_smash_handler. So, when
building with clang, instead mark those as protected visibility to get rid
of the PLT relocations. We can't take the address of them then, but that's
ok: it's a build-time error not a run-time error.
ok kettenis@
Rename the system call sendsyslog2 to sendsyslog. Keep the old one2016-03-21T22:41:28Zbluhmbluhm@openbsd.org2016-03-21T22:41:28Zurn:sha1:46afc4a47fab5533b885a0604dcf35228f31933f
as osendsyslog for a while. The three argument variant is the only
one that will stay.
input kettenis@; OK deraadt@
environ and __progname are not declared in a public header; declare them2016-03-13T18:34:20Zguentherguenther@openbsd.org2016-03-13T18:34:20Zurn:sha1:e422429247bd689ad82a15ebdacdfc785b980b1d
in libc's hidden/stdlib.h instead of in each .c file that needs one
ok deraadt@ gsoares@ mpi@
use strlcat instead of strlcpy with modified arguments. ok deraadt@2015-12-01T17:05:25Zcanacarcanacar@openbsd.org2015-12-01T17:05:25Zurn:sha1:2282c45e4851e04974b8eb804bb5490e29a61b45Rather than using syslog(3) (which pulls in snprintf), creating the report2015-11-25T00:16:40Zderaadtderaadt@openbsd.org2015-11-25T00:16:40Zurn:sha1:0e278963f8f4a4e987b326a4bf9030162061a41e
string using simpler strings functions and use sendsyslog2() directly.
Also, use the LOG_CONS flag so that single-user reports are more clear.
Use a buffer size of 1024 (from bluhm)
discussed with guenther and matthew
ok millert
Split the intra-thread functionality from kill(2) into its own syscall2015-11-10T04:30:59Zguentherguenther@openbsd.org2015-11-10T04:30:59Zurn:sha1:60d4950662688e997ad441a67807aa227b539842
thrkill(2), rolling the kill(2) syscall number with the ABI change to
avoid breaking binaries during during the transition. thrkill(2) includes
a 'tcb' argument that eliminates the need for locking in pthread_kill()
and simplifies pthread_cancel(). Switch __stack_smash_handler() to use
thrkill(2) and explicitly unblock SIGABRT.
Minor bump to both libc and libpthread: make sure you install a new kernel!
ok semarie@
libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()2015-11-10T04:14:03Zguentherguenther@openbsd.org2015-11-10T04:14:03Zurn:sha1:6897476f8d3f1ad745809cc8163365f785e57a2d
stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused. libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)
"good time" deraadt@
Pull in namespace.h when building all .c files using gcc's -include option,2015-09-10T18:13:46Zguentherguenther@openbsd.org2015-09-10T18:13:46Zurn:sha1:e6f98e3a163d69d2a20131b8c80e6fad49fe7683
so that we can provide asm labels for the memcpy/memset/__stack_smash_handler
calls that it generates ab initio. Eliminate direct #includes of it. Make
sure it's a dependency of all objects (unnecessary for asm, but close enough).
ok deraadt@
Move to the <limits.h> universe.2015-01-16T16:48:51Zderaadtderaadt@openbsd.org2015-01-16T16:48:51Zurn:sha1:aea60bee5e9bad0aab62f480f19c2fb34c068de4
review by millert, binary checking process with doug, concept with guenther
Do not need __guard[] anymore since we are now relying on __guard_local2013-12-28T18:42:42Zderaadtderaadt@openbsd.org2013-12-28T18:42:42Zurn:sha1:b42c354f9d2b5ded302c9a6495f932144a89e87e
for a while already
ok miod kettenis