-==================== Changes in man-pages-4.03 ====================
+==================== Changes in man-pages-4.09 ====================
-Released: 2015-12-05, Munich
+Released: ????-??-??, Munich
Contributors
in the changelog below) reports, notes, and ideas that have been
incorporated in changes in this release:
-Alexander Shishkin <alexander.shishkin@linux.intel.com>
-Alexei Starovoitov <ast@plumgrid.com>
-Andy Lutomirski <luto@kernel.org>
-Arto Bendiken <arto@bendiken.net>
-Carlos O'Donell <carlos@redhat.com>
-Casper Ti. Vector <caspervector@gmail.com>
-Daniel Borkmann <daniel@iogearbox.net>
-David Drysdale <drysdale@google.com>
-Eric B Munson <emunson@akamai.com>
-Florian Weimer <fweimer@redhat.com>
-Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
-Heinrich Schuchardt <xypron.glpk@gmx.de>
-Ingo Molnar <mingo@kernel.org>
-Jakub Wilk <jwilk@jwilk.net>
-Johannes Stüttgen <Johannes.Stuettgen@gmail.com>
-Jonathan Wakely <jwakely@redhat.com>
-Jonny Grant <jg@jguk.org>
-Kees Cook <keescook@chromium.org>
-Maria Guseva <m.guseva@samsung.com>
-Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
-Meikun Wang <alikewmk@gmail.com>
-Michael Kerrisk <mtk.manpages@gmail.com>
-Michal Hocko <mhocko@suse.com>
-Mike Frysinger <vapier@gentoo.org>
-Namhyung Kim <namhyung@gmail.com>
-Nikola Forró <nforro@redhat.com>
-Olivier TARTROU <olivier.tartrou@gmail.com>
-Peter Hurley <peter@hurleysoftware.com>
-Peter Zijlstra (Intel) <peterz@infradead.org>
-Ross Zwisler <ross.zwisler@linux.intel.com>
-Serge Hallyn <serge.hallyn@canonical.com>
-Silvan Jegen <s.jegen@gmail.com>
-Stefan Tauner <tauner@technikum-wien.at>
-Steven Rostedt <rostedt@goodmis.org>
-Tobias Stoeckmann <tobias@stoeckmann.org>
-Tycho Andersen <tycho.andersen@canonical.com>
-Ville Skyttä <ville.skytta@iki.fi>
-Vince Weaver <vincent.weaver@maine.edu>
-Zeng Linggang <zenglg.jy@cn.fujitsu.com>
Apologies if I missed anyone!
-Newly documented interfaces in existing pages
----------------------------------------------
-
-perf_event_open.2
- Vince Weaver
- 4.1 adds AUX sample support
- Vince Weaver
- 4.1 data_offset and data_size fields
- Vince Weaver [Alexander Shishkin]
- Document aux_{head,tail,offset,size} support
- Vince Weaver
- 4.0 update rdpmc documentation
- Vince Weaver
- 4.1 adds PERF_RECORD_ITRACE_START
- Vince Weaver
- Document 4.1 clockid support
- Vince Weaver [Steven Rostedt, Masami Hiramatsu]
- 4.1 PERF_EVENT_IOC_SET_BPF support
- Vince Weaver
- 4.1 adds AUX_FLAG_OVERWRITE support
- Vince Weaver
- 4.1 PERF_SAMPLE_BRANCH_CALL_STACK
- Vince Weaver
- 4.1 adds aux_watermark
- Vince Weaver
- Add possibility of EBUSY error
+New and rewritten pages
+-----------------------
-prctl.2
- Andy Lutomirski [Kees Cook, Serge Hallyn]
- Document operations for ambient capabilities
- Michael Kerrisk
- Rework PR_CAP_AMBIENT text
- Note that arg4 and arg5 must be zero for CAP_AMBIENT
- RETURN VALUE: Add PR_CAP_AMBIENT + PR_CAP_AMBIENT_IS_SET case
- ERRORS: document PR_CAP_AMBIENT error cases
-__ppc_set_ppr_med.3
- Gabriel F. T. Gomes
- Document PPC functions providing access to PPR
- GNU C Library commit 1747fcda4902a3b46183d93fb16ed9b436b2608b
- extends the priorities that can be set to the Program Priority
- Register (PPR), with the functions: __ppc_set_ppr_very_low(3)
- and __ppc_set_ppr_med_high(3).
-
-capabilities.7
- Andy Lutomirski [Kees Cook, Serge Hallyn]
- Document ambient capabilities
- Michael Kerrisk
- Various additions and reworkings for ambient capability text
+Newly documented interfaces in existing pages
+---------------------------------------------
New and changed links
---------------------
-__ppc_set_ppr_med_high.3
- Gabriel F. T. Gomes
- New link to __ppc_set_ppr_med.3
-__ppc_set_ppr_very_low.3
- Gabriel F. T. Gomes
- New link to __ppc_set_ppr_med.3
+Global changes
+--------------
Changes to individual pages
---------------------------
-mremap.2
- Eric B Munson [Michal Hocko]
- Add note about mremap() with locked areas
- When mremap() is used to move or expand a mapping that is locked
- with mlock() or equivalent it will attempt to populate the new
- area. However, like mmap(MAP_LOCKED), mremap() will not fail if
- the area cannot be populated. Also like mmap(MAP_LOCKED) this
- might come as a surprise to users and should be noted.
-open.2
- Michael Kerrisk [David Drysdale]
- Remove accidental mention of O_TTY_INIT
- An earlier edit mentioned O_TTY_INIT as a file creation flag.
- That's true, according POSIX, but Linux does not implement
- this flag, so remove mention of it.
-
-pipe.2
- Michael Kerrisk
- SEE ALSO: add splice(2)
-
-prctl.2
- Michael Kerrisk
- Reorder options alphabetically
- Employ a pseudo-alphabetical order, ordering options after removal
- of any "PR_", "PR_SET_", or "PR_GET" prefix.
- Michael Kerrisk
- Fix alphabetical misplacements in ERRORS
-
-ptrace.2
- Tycho Andersen
- Document PTRACE_O_SUSPEND_SECCOMP flag
- Michael Kerrisk
- Document /proc/sys/kernel/yama/ptrace_scope
- Michael Kerrisk
- Note that PTRACE_ATTACH cannot be applied to nondumpable processes
- Michael Kerrisk
- SEE ALSO: add prctl(2)
-
-reboot.2
- Casper Ti. Vector
- 1-argument reboot() is also provided by alternative libc
-
-seccomp.2
- Michael Kerrisk
- Describe use of 'instruction_pointer' data field
- Michael Kerrisk [Kees Cook]
- Note why all filters in a set are executed even after SECCOMP_RET_KILL
-
-signalfd.2
- Michael Kerrisk
- Describe semantics with respect to SCM_RIGHTS
-
-syscalls.2
- Michael Kerrisk
- Add mlock(2)
- Michael Kerrisk
- Add userfaultfd()
-
-daemon.3
- Michael Kerrisk [Johannes Stüttgen]
- Note that daemon() is buggy with respect to controlling tty acquisition
-
-dirfd.3
- Jonathan Wakely
- Remove outdated NOTES
- As stated in the SYNOPSIS, since glibc 2.10 this function is also
- declared by the relevant X/Open and POSIX macros.
-
-dlopen.3
- Michael Kerrisk
- Make it more explicit that LD_BIND_NOW overrides RTLD_LAZY
- Michael Kerrisk [Florian Weimer]
- Correct the pathname used in EXAMPLE
- Quoting Florian:
-
- This does not work because libm.so can be a linker script:
-
- handle = dlopen("libm.so", RTLD_LAZY);
-
- The proper way to do this is to include <gnu/lib-names.h>
- and use LIBM_SO.
-
- See https://bugzilla.kernel.org/show_bug.cgi?id=108821
- Michael Kerrisk
- Include a shell session showing build/run in EXAMPLE
- Michael Kerrisk
- Change arguments to main() to "void" in EXAMPLE
-
-fgetgrent.3
- Zeng Linggang
- ATTRIBUTES: Note function that is not thread-safe
-
-fgetpwent.3
- Zeng Linggang
- ATTRIBUTES: Note function that is not thread-safe
-
-getauxval.3
- Michael Kerrisk
- Add some details for AT_SECURE
-
-getspnam.3
- Zeng Linggang
- ATTRIBUTES: Note functions that are/aren't thread-safe
-
-mallinfo.3
- Zeng Linggang
- ATTRIBUTES: Note function that is not thread-safe
-
-mallopt.3
- Carlos O'Donell
- Document M_ARENA_TEST and M_ARENA_MAX
-
-posix_fallocate.3
- Michael Kerrisk
- Clarify text relating to MT-safety
- Carlos O'Donell
- Mention glibc emulation caveats
-
-termios.3
- Olivier TARTROU
- Add missing details on behaviour of PARMRK
- For a serial terminal, with a specific configuration, input bytes
- with value 0377 are passed to the program as two bytes, 0377 0377.
-
-tty_ioctl.4
- Michael Kerrisk [Peter Hurley]
- Note that TIOCTTYGSTRUCT went away in Linux 2.5.67
-
-core.5
- Ross Zwisler
- Add info about DAX coredump filtering flags
- Kernel 4.4 added two new core dump filtering flags,
- MMF_DUMP_DAX_PRIVATE and MMF_DUMP_DAX_SHARED.
-
- These flags allow us to explicitly filter DAX mappings.
- This is desirable because DAX mappings, like hugetlb
- mappings, have the potential to be very large.
-
-nsswitch.conf.5
- Nikola Forró
- Add list of files being read when "files" service is used
- This is not mentioned anywhere. Users can assume that the file
- being read is something like /etc/$DATABASE, but that's not
- always the case. It's better to explicitly specify which
- file is read for each respective database. The list of
- files was acquired from glibc source code.
-
-proc.5
- Heinrich Schuchardt [Michael Kerrisk]
- Add details for threads-max
- Add detail information for threads-max.
- The checks for minimum and maximum values exist since kernel 4.1.
- https://lkml.org/lkml/2015/3/15/96
- Heinrich Schuchardt
- /proc/sys: Describe whitespace characters
- Michael Kerrisk
- Document 'CapAmb' in /proc/PID/status
- Michael Kerrisk
- Add reference to ptrace(2) for /proc/sys/kernel/yama/ptrace_scope
-
-aio.7
- Michael Kerrisk [Meikun Wang]
- Add missing include file, <fcntl.h>, to example program
-
-mq_overview.7
- Michael Kerrisk [Arto Bendiken]
- Document QSIZE bug that appeared in 3.5 and was fixed in 4.2
-
-path_resolution.7
- Michael Kerrisk
- Clarify recursive resolution of symlinks and note limits
-
-pipe.7
- Michael Kerrisk
- SEE ALSO: add splice(2)
-
-rtld-audit.7
- Namhyung Kim
- Fix (typo) error in la_pltenter() description
- s/la_pltenter()/la_pltexit()/
-
- la_pltenter() is called regardless of the value of
- framesizep but la_pltexit() is called only if la_pltenter()
- returns with non-zero framesizep set. I spent long time to
- figure out why la_pltexit() is not called at all.
-
-signal.7
- Michael Kerrisk [Michael Hocko]
- Note async-signal-safe functions added by POSIX.1-2008 TC1
-
-tcp.7
- Daniel Borkmann [Michael Kerrisk]
- Improve paragraphs on tcp_ecn and add tcp_ecn_fallback bullet
- Improve description of tcp_ecn, fix the RFC number and it's
- not a boolean anymore since long time, and add a description
- for tcp_ecn_fallback.
-
- See also kernel doc under Documentation/networking/ip-sysctl.txt
- on tcp_ecn and tcp_ecn_fallback.
-
-ld.so.8
- Michael Kerrisk
- LD_POINTER_GUARD has been removed in glibc 2.23
- Michael Kerrisk
- Describe secure-execution mode
- Michael Kerrisk [Maria Guseva]
- Replace mentions of set-UID/set-GID programs with secure-execution mode
- Inspired by a patch from Maria Guseva.
- Maria Guseva [Silvan Jegen]
- LD_DEBUG is effective in secure-execution mode if /etc/suid-debug exists
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