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* Make rtld use libc_nossp_pic.a. Remove SSP shims.Konstantin Belousov2018-05-092-43/+2
| | | | | | | | | Submitted by: Luis Pires Reviewed by: brooks Differential revision: https://reviews.freebsd.org/D15341 Notes: svn path=/head/; revision=333398
* tftpd: misc Coverity cleanup in the testsAlan Somers2018-03-221-7/+12
| | | | | | | | | | | | | A bunch of unchecked return values from open(2) and read(2) Reported by: Coverity CID: 1386900, 1386911, 1386926, 1386928, 1386932, 1386942 CID: 1386961, 1386979 MFC after: 8 days X-MFC-With: 330696 Notes: svn path=/head/; revision=331358
* tftpd: fix the build of tests on i386 after 330696Alan Somers2018-03-101-2/+2
| | | | | | | | | | | It's those darn printf format specifiers again Reported by: cy, kibab MFC after: 20 days X-MFC-With: 330696 Notes: svn path=/head/; revision=330742
* tftpd: reject unknown opcodesAlan Somers2018-03-102-4/+3
| | | | | | | | | | | | If tftpd receives a command with an unknown opcode, it simply exits 1. It doesn't send an ERROR packet, and the client will hang waiting for one. Fix it. PR: 226005 MFC after: 3 weeks Notes: svn path=/head/; revision=330720
* tftpd: Abort on an WRQ access violationAlan Somers2018-03-102-6/+4
| | | | | | | | | | | | | | | | | | On a WRQ (write request) tftpd checks whether the client has access permission for the file in question. If not, then the write is prevented. However, tftpd doesn't reply with an ERROR packet, nor does it abort. Instead, it tries to receive the packet anyway. The symptom is slightly different depending on the nature of the error. If the target file is nonexistent and tftpd lacks permission to create it, then tftpd will willingly receive the file, but not write it anywhere. If the file exists but is not writable, then tftpd will fail to ACK to WRQ. PR: 225996 MFC after: 3 weeks Notes: svn path=/head/; revision=330719
* tftpd: Verify world-writability for WRQ when using relative pathsAlan Somers2018-03-102-6/+17
| | | | | | | | | | | | | | | | | | tftpd(8) says that files may only be written if they already exist and are publicly writable. tftpd.c verifies that a file is publicly writable if it uses an absolute pathname. However, if the pathname is relative, that check is skipped. Fix it. Note that this is not a security vulnerability, because the transfer ultimately doesn't work unless the file already exists and is owned by user nobody. Also, this bug does not affect the default configuration, because the default uses the "-s" option which makes all pathnames absolute. PR: 226004 MFC after: 3 weeks Notes: svn path=/head/; revision=330718
* tftpd: Flush files as soon as they are fully receivedAlan Somers2018-03-093-9/+3
| | | | | | | | | | | | | | | | | | On an RRQ, tftpd doesn't exit as soon as it's finished receiving a file. Instead, it waits five seconds just in case the client didn't receive the server's last ACK and decides to resend the final DATA packet. Unfortunately, this created a 5 second delay from when the client thinks it's done sending the file, and when the file is available for other processes. Fix this bug by closing the file as soon as receipt is finished. PR: 157700 Reported by: Barry Mishler <barry_mishler@yahoo.com> MFC after: 3 weeks Notes: svn path=/head/; revision=330710
* Add some functional tests for tftpd(8)Alan Somers2018-03-093-0/+1023
| | | | | | | | | | | | | | | | | | | tftpd(8) is difficult to test in isolation due to its relationship with inetd. Create a test program that mimics the behavior of tftp(1) and inetd(8) and verifies tftpd's response in several different scenarios. These test cases cover all of the basic TFTP protocol, but not the optional parts. PR: 157700 PR: 225996 PR: 226004 PR: 226005 MFC after: 3 weeks Differential Revision: https://reviews.freebsd.org/D14310 Notes: svn path=/head/; revision=330696
* rpc.sprayd: raise WARNS to 6Alan Somers2018-03-052-5/+3
| | | | | | | MFC after: 3 weeks Notes: svn path=/head/; revision=330514
* .Xr pstat(8), so that people have a chance to learn how to get a listEdward Tomasz Napierala2018-03-022-4/+6
| | | | | | | | | | of terminal devices using "pstat -t". MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=330277
* Make rtld_bind_start() debugger friendly.Michal Meloun2018-02-271-5/+15
| | | | | | | | | | Save link register and annotate call frame structure so debugger can unwind call frame created by rtld_bind_start(). MFC after: 2 weeks Notes: svn path=/head/; revision=330073
* Fix gettytab(5) to document f0, f1, and f2 as unsupported; they've been goneEdward Tomasz Napierala2018-02-261-15/+4
| | | | | | | | | | | | since r131091. PR: 184691 (partial) Submitted by: naddy@ MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=330022
* Prevent getty(8) from looping indefinitely if the device node doesn'tEdward Tomasz Napierala2018-02-251-2/+4
| | | | | | | | | | | | | | exist. This behaviour makes no sense for eg USB serial adapters, or USB device-side serial templates. This mostly reverts to pre-r135941 behaviour. Reviewed by: imp@ Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D14198 Notes: svn path=/head/; revision=329992
* Build getty(8) with WARNS=6.Edward Tomasz Napierala2018-02-214-26/+24
| | | | | | | | | | Reviewed by: imp@ MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D14197 Notes: svn path=/head/; revision=329724
* Sprinkle static; avoid nested externs.Edward Tomasz Napierala2018-02-043-16/+16
| | | | | | | | MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=328858
* Add missing initializer.Edward Tomasz Napierala2018-02-041-1/+1
| | | | | | | | MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=328857
* Rename getty's getline() to get_line(), to avoid clash with getline(3).Edward Tomasz Napierala2018-02-041-3/+3
| | | | | | | | | Obtained from: DragonFlyBSD MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=328856
* Don't cast away the const, it's not been needed since r92925.Edward Tomasz Napierala2018-02-041-4/+4
| | | | | | | | MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=328855
* Initialize all the fields. This is one of the steps required to bump WARNS.Edward Tomasz Napierala2018-02-041-90/+91
| | | | | | | | MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=328846
* Reduce code duplication; no functional changes.Edward Tomasz Napierala2018-02-041-14/+16
| | | | | | | | | Obtained from: NetBSD MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=328843
* Remove unused variable.Edward Tomasz Napierala2018-02-041-1/+0
| | | | | | | | MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=328841
* o Let rtld(1) set up psABI user trap handlers prior to executing theMarius Strobl2018-02-0311-4/+75
| | | | | | | | | | | | | | | | | objects' init functions instead of doing the setup via a constructor in libc as the init functions may already depend on these handlers to be in place. This gets us rid of: - the undefined order in which libc constructors as __guard_setup() and jemalloc_constructor() are executed WRT __sparc_utrap_setup(), - the requirement to link libc last so __sparc_utrap_setup() gets called prior to constructors in other libraries (see r122883). For static binaries, crt1.o still sets up the user trap handlers. o Move misplaced prototypes for MD functions in to the MD prototype section of rtld.h. o Sprinkle nitems(). Notes: svn path=/head/; revision=328834
* rpc.sprayd: Remove 3rd and 4th clauses in christos' license.Pedro F. Giffuni2017-12-282-13/+3
| | | | | | | Obtained from: NetBSD Notes: svn path=/head/; revision=327290
* rpc.sprayd: Bring some changes from NetBSD.Pedro F. Giffuni2017-12-282-13/+17
| | | | | | | | | | | | | | | Most notable, other than some style issues: CVS 1.11: do not use LOG_CONS. CVS 1.13: consistently use exit instead of return in main(). use LOG_WARNING instead of LOG_ERR for non critical errors. Obtained from: NetBSD MFC after: 2 weeks Notes: svn path=/head/; revision=327289
* Replace send-mail with the more standarized sendmail, we do not createXin LI2017-12-271-1/+0
| | | | | | | | | links for send-mail in mailwrapper so it did not work anyway. MFC after: 2 weeks Notes: svn path=/head/; revision=327236
* Use strlcpy().Xin LI2017-12-051-1/+1
| | | | | | | MFC after: 2 weeks Notes: svn path=/head/; revision=326562
* libexec: adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-2747-21/+116
| | | | | | | | | | | | | | | | | 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. No functional change intended. Notes: svn path=/head/; revision=326274
* General further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-2040-31/+111
| | | | | | | | | | | | | | | | | Mainly focus on files that use BSD 3-Clause license. 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. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Notes: svn path=/head/; revision=326025
* spdx: initial adoption of licensing ID tags.Pedro F. Giffuni2017-11-1812-12/+36
| | | | | | | | | | | | | | | | | | | | 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. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Initially, only tag files that use BSD 4-Clause "Original" license. RelNotes: yes Differential Revision: https://reviews.freebsd.org/D13133 Notes: svn path=/head/; revision=325966
* Increase rtld initial memory pool size from 32kB to 128kB.Edward Tomasz Napierala2017-11-181-1/+1
| | | | | | | | | | | | | | | | | | | The old value was probably fine back in 1998, when that code was imported (although the comments still mention VAX, which was quite obsolete by then); now, however, it's too small to handle our libc, which results in some additional calls to munmap/mmap later on. Asking for more virtual address space is virtually free, and syscalls are not, thus the change. It was suggested by kib@ that this might be a symptom of a deeper problem. It doesn't only affect libc, though - the change also improves rtld memory management for eg KDE libraries. I guess it's just a natural bloat. MFC after: 2 weeks Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D12834 Notes: svn path=/head/; revision=325965
* Appease old GCC by disabling .cfi_sections for GCC 4.x.John Baldwin2017-11-141-0/+2
| | | | Notes: svn path=/head/; revision=325816
* Some fixups to the CFI directives for PLT stub entry points.John Baldwin2017-11-101-2/+6
| | | | | | | | | | | | | | | | | | The directives I added in r323466 and r323501 did not define a valid CFA until several instructions into the associated functions. This triggers an assertion in GDB when generating a stack trace while stopped at the first instruction of PLT stub entry point since there is no valid CFA rule for the first instruction. This is probably just wrong on my part as the non-simple .cfi_startproc would have defined a valid CFA. Instead, define a valid CFA as sp + 0 at the start of the functions and then use .cfa_def_offset to change the offset when sp is adjusted later in the function. Sponsored by: DARPA / AFRL Notes: svn path=/head/; revision=325624
* Use NESTED() instead of LEAF() for rtld_start.John Baldwin2017-11-101-2/+1
| | | | | | | | | | This is only cosmetic, but the entry point for rtld is not a leaf function, and this avoids two .frame directives for rtld_start. Sponsored by: DARPA / AFRL Notes: svn path=/head/; revision=325623
* DIRDEPS_BUILD: Update dependencies.Bryan Drewery2017-10-3134-34/+0
| | | | | | | Sponsored by: Dell EMC Isilon Notes: svn path=/head/; revision=325188
* These values already set by src.libnames.mk.Bryan Drewery2017-10-311-2/+0
| | | | | | | | MFC after: 2 weeks Sponsored by: Dell EMC Isilon Notes: svn path=/head/; revision=325178
* Use MAP_PRIVATE instead of obsolete MAP_COPY. No functional changes.Edward Tomasz Napierala2017-10-301-1/+1
| | | | | | | MFC after: 2 weeks Notes: svn path=/head/; revision=325134
* Plug memory leak on error case.Edward Tomasz Napierala2017-10-291-0/+1
| | | | | | | | | Reported by: Coverity CID: 1382112 MFC after: 2 weeks Notes: svn path=/head/; revision=325102
* Remove unneeded calls to access(2) from rtld(1); just call open(2) instead.Edward Tomasz Napierala2017-10-241-13/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The result looks like this: --- przed 2017-10-21 23:19:21.445034000 +0100 +++ po 2017-10-21 23:18:50.031865000 +0100 @@ -11,7 +11,6 @@ mmap(0x0,102,PROT_READ,MAP_PRIVATE,3,0x0) = 343665418 close(3) = 0 (0x0) open("/usr/local/etc/libmap.d",O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC,0165) ERR#2 'No such file or directory' munmap(0x80067d000,102) = 0 (0x0) -access("/usr/local/lib/libintl.so.8",F_OK) = 0 (0x0) openat(AT_FDCWD,"/usr/local/lib/libintl.so.8",O_RDONLY|O_CLOEXEC|O_VERIFY,00) = 3 (0x3) fstat(3,{ mode=-rw-r--r-- ,inode=642560,size=55188,blksize=32768 }) = 0 (0x0) mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) = 34366541824 (0x80067d000) @@ -20,14 +19,13 @@ mmap(0x800877000,40960,PROT_READ|PROT_EXEC,MAP_PRIVATE mmap(0x800a81000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREFAULT_READ,3,0xa000) = 34370752512 (0x800a81000) munmap(0x80067d000,4096) = 0 (0x0) close(3) = 0 (0x0) -access("/usr/local/lib/libc.so.7",F_OK) ERR#2 'No such file or directory' +openat(AT_FDCWD,"/usr/local/lib/libc.so.7",O_RDONLY|O_CLOEXEC|O_VERIFY,00) ERR#2 'No such file or directory' openat(AT_FDCWD,"/var/run/ld-elf.so.hints",O_RDONLY|O_CLOEXEC,00) = 3 (0x3) read(3,"Ehnt\^A\0\0\0\M^@\0\0\0\M-2\0\0"...,128) = 128 (0x80) fstat(3,{ mode=-r--r--r-- ,inode=970684,size=306,blksize=32768 }) = 0 (0x0) lseek(3,0x80,SEEK_SET) = 128 (0x80) read(3,"/lib:/usr/lib:/usr/lib/compat:/u"...,178) = 178 (0xb2) close(3) = 0 (0x0) -access("/lib/libc.so.7",F_OK) = 0 (0x0) openat(AT_FDCWD,"/lib/libc.so.7",O_RDONLY|O_CLOEXEC|O_VERIFY,00) = 3 (0x3) fstat(3,{ mode=-r--r--r-- ,inode=1605239,size=1910320,blksize=32768 }) = 0 (0x0) mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) = 34366541824 (0x80067d000) Reviewed by: kib MFC after: 2 weeks Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D12766 Notes: svn path=/head/; revision=324953
* Replace lseek(2)/read(2) pair with pread(2), removing yet another syscallEdward Tomasz Napierala2017-10-241-4/+3
| | | | | | | | | | from the binary startup code. MFC after: 2 weeks Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=324952
* Make find_library() conform to style(9). No functional changes.Edward Tomasz Napierala2017-10-241-78/+79
| | | | | | | | | Suggested by: kib MFC after: 2 weeks Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=324951
* Reword the conditional; it was ugly, and adding another parameter,Edward Tomasz Napierala2017-10-241-17/+44
| | | | | | | | | | | which I'm going to do in a subsequent commit, would make it even uglier. No functional changes. MFC after: 2 weeks Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=324950
* Use xmalloc and read(2) instead of mmap(2) to read in libmap.conf(5).Edward Tomasz Napierala2017-10-241-4/+6
| | | | | | | | | | | This removes the need to call munmap(2) afterwards. MFC after: 2 weeks Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D12767 Notes: svn path=/head/; revision=324949
* Don't call realpath(3) from libmap rtld code. This gets rid of a few callsEdward Tomasz Napierala2017-10-221-28/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | to fstatat(2) at binary startup; the difference looks like this: --- przed 2017-10-14 13:55:49.983528000 +0100 +++ po 2017-10-14 14:10:39.134343000 +0100 @@ -1,15 +1,10 @@ mmap(0x0,32768,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34366173184 (0x800623000) issetugid() = 0 (0x0) -fstatat(AT_FDCWD,"/etc",{ mode=drwxr-xr-x ,inode=1364352,size=2560,blksize=32768 },AT_SYMLINK_NOFOLLOW) = 0 (0x0) -fstatat(AT_FDCWD,"/etc/libmap.conf",{ mode=-rw-r--r-- ,inode=1373288,size=102,blksize=32768 },AT_SYMLINK_NOFOLLOW) = 0 (0x0) openat(AT_FDCWD,"/etc/libmap.conf",O_RDONLY|O_CLOEXEC,00) = 3 (0x3) fstat(3,{ mode=-rw-r--r-- ,inode=1373288,size=102,blksize=32768 }) = 0 (0x0) mmap(0x0,102,PROT_READ,MAP_PRIVATE,3,0x0) = 34366205952 (0x80062b000) close(3) = 0 (0x0) -fstatat(AT_FDCWD,"/usr",{ mode=drwxr-xr-x ,inode=561792,size=512,blksize=32768 },AT_SYMLINK_NOFOLLOW) = 0 (0x0) -fstatat(AT_FDCWD,"/usr/local",{ mode=drwxr-xr-x ,inode=561800,size=512,blksize=32768 },AT_SYMLINK_NOFOLLOW) = 0 (0x0) -fstatat(AT_FDCWD,"/usr/local/etc",{ mode=drwxr-xr-x ,inode=653279,size=1536,blksize=32768 },AT_SYMLINK_NOFOLLOW) = 0 (0x0) -fstatat(AT_FDCWD,"/usr/local/etc/libmap.d",0x7fffffffcf50,AT_SYMLINK_NOFOLLOW) ERR#2 'No such file or directory' +open("/usr/local/etc/libmap.d",O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC,0165) ERR#2 'No such file or directory' munmap(0x80062b000,102) = 0 (0x0) openat(AT_FDCWD,"/var/run/ld-elf.so.hints",O_RDONLY|O_CLOEXEC,00) = 3 (0x3) read(3,"Ehnt\^A\0\0\0\M^@\0\0\0\M-2\0\0"...,128) = 128 (0x80) Reviewed by: kib MFC after: 2 weeks Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D12741 Notes: svn path=/head/; revision=324856
* ftpd(8): fix user context handling.Eugene Grosbein2017-10-061-4/+17
| | | | | | | | | | | | | | | | | | Apply authenticated user context after update of wtmp(5) at start of session, so that ftpd process is not killed by kernel with SIGXFSZ when user has "filesize" limit lower than size of system wtmp file. Same applies to session finalization: revert to super-user context before update of wtmp. If ftpd hits limit while writing a file at user request, do not get killed with SIGXFSZ instantly but apparently ignore the signal, process error and report it to the user, and continue with the session. PR: 143570 Approved by: avg (mentor), mav (mentor) MFC after: 1 week Notes: svn path=/head/; revision=324364
* Remove rcmds.Jeremie Le Hen2017-10-069-1776/+0
| | | | | | | | | | | | | | | | | | | | | If they are still needed, you can find them in the net/bsdrcmds port. This was proposed June, 20th and approved by various committers [1]. They have been marked as deprecated on CURRENT in r320644 [2] on July, 4th. Both stable/11 and release/11.1 contain the deprecation notice (thanks to allanjude@). Note that ruptime(1)/rwho(1)/rwhod(8) were initially thought to be part of rcmds but this was a mistake and those are therefore NOT removed. [1] https://lists.freebsd.org/pipermail/freebsd-arch/2017-June/018239.html [2] https://svnweb.freebsd.org/base?view=revision&revision=320644 Reviewed by: bapt, brooks Differential Revision: https://reviews.freebsd.org/D12573 Notes: svn path=/head/; revision=324351
* Deorbit catman. The tradeoff of disk for performance has long since tippedGordon Tetlow2017-09-133-21/+3
| | | | | | | | | | | | | in favor of just rendering the manpage instead of relying on pre-formatted catpages. Note, this does not impede the ability to use existing catpages, it just removes the utility to generate them. Reviewed by: imp, allanjude Approved by: emaste (mentor) Differential Revision: https://reviews.freebsd.org/D12317 Notes: svn path=/head/; revision=323550
* Handle relocations for newer non-PIC MIPS ABI.John Baldwin2017-09-124-39/+240
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newer binutils supports extensions to the MIPS ABI for non-PIC code that is used when compiling O32 binaries with clang 5 (but not used for N64 oddly enough). These extensions require support for R_MIPS_COPY relocations as well as a second PLT GOT using R_MIPS_JUMP_SLOT relocations. For R_MIPS_COPY, use the same approach as on other architectures where fixups are deferred to the MD do_copy_relocations. The additional PLT GOT for jump slots is located in a .got.plt section which is identified by a DT_MIPS_PLTGOT dynamic entry. This GOT also requires fixups for the first two GOT entries just as the normal GOT. However, the entry point for this second GOT uses a different calling convention. Rather than passing an offset into the GOT, it passes an offset into the .rel.plt section. This requires a second entry point (_rtld_pltbind_start) which calls the normal _rtld_bind() rather than _mips_rtld_bind(). This also means providing a real version of reloc_jmpslot() which is used by _rtld_bind(). In addition, add real implementions of reloc_plt() and reloc_jmpslots() which walk .rel.plt handling R_MIPS_JUMP_SLOT relocations. Reviewed by: kib Sponsored by: DARPA / AFRL Differential Revision: https://reviews.freebsd.org/D12326 Notes: svn path=/head/; revision=323501
* End softfp->hardfp transition period for armWarner Losh2017-09-122-12/+14
| | | | | | | | | | | | On hard-float 32-bit arm platforms, always search for the soft float binaries in the alternative locations. Sponsored by: Netflix Differential Review: https://reviews.freebsd.org/D12274 MFC After: 1 week Notes: svn path=/head/; revision=323500
* Add CFI directives for _rtld_bind_start.John Baldwin2017-09-111-0/+24
| | | | | | | | | | This allows debuggers to unwind back into the caller when stopped in the runtime linker. Sponsored by: DARPA / AFRL Notes: svn path=/head/; revision=323466
* Add a new getty/gettytab capability to generate an initial message dynamically.David Bright2017-09-074-2/+8
| | | | | | | | | | | | | | | | | | | This modification adds a new gettytab(5) option (iM) to specify a program to run that will generate the initial (banner) message that is displayed before the login prompt. Such a capability is useful when dynamic information is needed in the banner message that cannot be supplied by the set of % substitution sequences available in the "im" option. Reviewed by: vangyzen, wblock, manpages Approved by: vangyzen (mentor) MFC after: 1 week Relnotes: yes Sponsored by: Dell EMC Differential Revision: https://reviews.freebsd.org/D12108 Notes: svn path=/head/; revision=323252
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