FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F12.2 2020-08-24T12:49:51Z 2020-08-24T12:49:51Z Edward Tomasz Napierala trasz@FreeBSD.org 2020-08-24T12:49:51Z urn:sha1:ca8193e7b33bb9b9a58e535da09bfcdd1a02de03 Make linux(4) set the openfiles soft resource limit to 1024 for Linux applications, which often depend on this being the case. There's a new sysctl, compat.linux.default_openfiles, to control this behaviour. Sponsored by: The FreeBSD Foundation 2020-06-25T05:24:35Z Konstantin Belousov kib@FreeBSD.org 2020-06-25T05:24:35Z urn:sha1:4f349de4c6670f3cce53e83196d85d0f6dd261f7 Fix execution of linux binary from multithreaded non-Linux process. 2019-05-13T10:43:18Z Dmitry Chagin dchagin@FreeBSD.org 2019-05-13T10:43:18Z urn:sha1:c42520a02667bf58166a67d85e40b9116e8b3fb3 Follow the FreeBSD and implement PDEATH_SIG prctl ops in the Linuxulator. It was first introduced in r163734 and missied by me in r283383. 2018-04-09T17:24:01Z Ed Maste emaste@FreeBSD.org 2018-04-09T17:24:01Z urn:sha1:b267239d4b3d386418bb8d869dc59846d0dc0a58 Previously linuxulator had three identical copies of linux_exec_imgact_try. Deduplicate before adding another arch to linuxulator. Sponsored by: Turing Robotic Industries Inc Differential Revision: https://reviews.freebsd.org/D14856 2018-03-01T13:52:18Z Ed Maste emaste@FreeBSD.org 2018-03-01T13:52:18Z urn:sha1:023b850b62481007dd3bf305026e12845a4c189c Many licenses on Linuxolator files contained small variations from the standard FreeBSD license text. To avoid license proliferation switch to the standard 2-clause FreeBSD license for those files where I have permission from each of the listed copyright holders. Additional files still waiting on permission from others are listed in review D14210. Approved by: dchagin, rdivacky, sos MFC after: 1 week MFC with: r329370 Sponsored by: The FreeBSD Foundation 2018-02-22T02:24:17Z Ed Maste emaste@FreeBSD.org 2018-02-22T02:24:17Z urn:sha1:eae594f7d567f6e4abe04e96412683534e5c7109 - Capitalize Linux - Spell FreeBSD out in full - Address some style(9) on changed lines Sponsored by: Turing Robotic Industries Inc. 2018-02-05T17:29:12Z Ed Maste emaste@FreeBSD.org 2018-02-05T17:29:12Z urn:sha1:132f90c660e08037d238bb9557475b83cc9e2861 A version of each of the MD files by necessity exists for each CPU architecture supported by the Linuxolator. Clean these up so that new architectures do not inherit whitespace issues. Clean up shared Linuxolator files while here. Sponsored by: Turing Robotic Industries Inc. 2017-11-27T15:13:23Z Pedro F. Giffuni pfg@FreeBSD.org 2017-11-27T15:13:23Z urn:sha1:7f2d13d60721803155950276e0282fcd1e6bacc3 Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. 2017-11-24T07:35:08Z Ed Schouten ed@FreeBSD.org 2017-11-24T07:35:08Z urn:sha1:814629dd64a35b829cc8f537b55b9c5d873f7bbf Upon successful completion, the execve() system call invokes exec_setregs() to initialize the registers of the initial thread of the newly executed process. What is weird is that when execve() returns, it still goes through the normal system call return path, clobbering the registers with the system call's return value (td->td_retval). Though this doesn't seem to be problematic for x86 most of the times (as the value of eax/rax doesn't matter upon startup), this can be pretty frustrating for architectures where function argument and return registers overlap (e.g., ARM). On these systems, exec_setregs() also needs to initialize td_retval. Even worse are architectures where cpu_set_syscall_retval() sets registers to values not derived from td_retval. On these architectures, there is no way cpu_set_syscall_retval() can set registers to the way it wants them to be upon the start of execution. To get rid of this madness, let sys_execve() return EJUSTRETURN. This will cause cpu_set_syscall_retval() to leave registers intact. This makes process execution easier to understand. It also eliminates the difference between execution of the initial process and successive ones. The initial call to sys_execve() is not performed through a system call context. Reviewed by: kib, jhibbits Differential Revision: https://reviews.freebsd.org/D13180 2016-07-10T08:15:50Z Dmitry Chagin dchagin@FreeBSD.org 2016-07-10T08:15:50Z urn:sha1:23e8912c6087b3b6690566258c3a06f55a51eb2c In Linux if this flag is set, PROT_READ implies PROT_EXEC for mmap(). Linux/i386 set this flag automatically if the binary requires executable stack. READ_IMPLIES_EXEC flag will be used in the next Linux mmap() commit.