This is the kdump counterpart of the truss support added in r358116, and
also a part of D23733. shm_open2 is the successor to shm_open.
Reviewed by: kaktus
shm_open2 is similar to shm_open, except it also takes shmflags and optional
name to label the anonymous region for, e.g., debugging purposes.
The appropriate support for decoding shmflags was added to libsysdecode in
r358115.
This is a part of D23733.
Reviewed by: kaktus
Any SHM_* flag here is (and likely will continue to be) a shmflag that may
be passed to shm_open2(), with exception to SHM_ANON. This is a prereq to
adding appropriate support to truss/kdump.
Reviewed by: kaktus (slightly earlier version)
Differential Revision: https://reviews.freebsd.org/D23733
The first argument to shm_open(2) as well as shm_open2(2) may be a path or
SHM_ANON. Decode SHM_ANON, at least- paths will show up as namei results in
kdump output, which may be sufficient; in those cases, we'll have printed an
address.
Future commits will add support for shm_open2() to libsysdecode/truss/kdump.
Reported by: kaktus
MFC after: 3 days
environ(7) was in AT&T Version 7
ac(8): Add a HISTORY section
sa(8): Add a HISTORY section
sqrt(3): Add the actual sqrt function to the HISTORY section
Obtained from: OpenBSD
Submitted by: gbergling@gmail.com
Approved by: bcr@(mentor)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D23693
be able to guarantee that they can be racquired without blocking.
Reviewed by: kib
Discussed with: markj
Differential Revision: https://reviews.freebsd.org/D23506
virtual address or physical page allocation need to be marked with this
flag.
Reviewed by: markj
Tested by: pho
Differential Revision: https://reviews.freebsd.org/D23712
This API is intended to provide some measure of safety with SMR
protected pointers. A struct wrapper provides type checking and
a guarantee that all access is mediated by the API unless abused. All
modifying functions take an assert as an argument to guarantee that
the required synchronization is present.
Reviewed by: kib, markj, mjg
Differential Revision: https://reviews.freebsd.org/D23711
ACPI Control Method Batteries have a _BIF and/or _BIX object which
provide static properties of the battery. FreeBSD acpi_cmbat module
supported _BIF object only, which was deprecated as of ACPI 4.0.
_BIX is an extended version of _BIF defined in ACPI 4.0 or later.
As of writing, _BIX has two revisions. One is in ACPI 4.0 (rev.0) and
another is in ACPI 6.0 (rev.1). It seems that hardware vendors still
stick to _BIF only or _BIX rev.0 + _BIF for the maximum compatibility.
Microsoft requires _BIX rev.0 for Windows machines, so there are some
laptop machines with _BIX rev.0 only. In this case, FreeBSD does not
recognize the battery information.
After this change, the acpi_cmbat module gets battery information from
_BIX or _BIF object and internally uses _BIX rev.1 data structure as
the primary information store in the kernel. ACPIIO_BATT_GET_BI[FX]
returns an acpi_bi[fx] structure built by using information obtained
from a _BIF or a _BIX object found on the system. The revision number
field can be used to check which field is available. The acpiconf(8)
utility will show additional information if _BIX is available.
Although ABIs of ACPIIO_BATT_* were changed, the existing APIs for
userland utilities are not changed and the backward-compatible ABIs
are provided. This means that older versions of acpiconf(8) can also
work with the new kernel. The (union acpi_battery_ioctl_arg) was
padded to 256 byte long to avoid another ABI change in the future.
A _BIX object with its revision number >1 will be treated as
compatible with the rev.1 _BIX format.
Reviewed by: takawata
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D23728
PR: 244118
Reported by: Francis Little <oggy at farscape.co.uk>
Tested by: Francis Little, Mark Millard <marklmi at yahoo.com>
Reviewed by: markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D23729
"Oops" - ln(1) is fine and dandy, but when you're using DESTDIR...it's not-
the path will almost certainly be invalid once the root you've just
installed to is relocated, perhaps to /.
Switch to install(1) using `-l rs` to calculate the relative symlink between
the two, which should work just fine in all cases.
MFC after: 1 week
buffer group.
This fixes a bug where congestion drops on port 1 of a T6 card would
incorrectly be counted as drops on port 0.
MFC after: 1 week
Sponsored by: Chelsio Communications
sys/arm/allwinner/clkng/aw_clk_mipi.c:144:6: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
m++;
^
sys/arm/allwinner/clkng/aw_clk_mipi.c:142:5: note: previous statement is here
if (best == *fout)
^
Move the increment operations into the for loop headers instead.
Discussed with: manu
MFC after: 3 days
Each entry in ObsoleteFiles.inc adds to the time `make delete-old` and
friends take to run. Perl was removed from the FreeBSD base system a
very long time ago (FreeBSD 5); source updates have not been supported
from that version for years.
Perl was a single component responsible for thousands of entries so
provides significant benefit with little effort/investigation required.
We could still use a more comprehensive cleanup to remove old entries.
Also add an UPDATING note (with wordsmithing by imp) indicating that
`make delete-old` is required along each step of a source upgrade from
an old, unsupported release.
Discussed with: imp
Sponsored by: The FreeBSD Foundation
up to par with the Linux pam_access(8).
Like the Linux pam_access(8) our pam_login_access(8) is a service module
for pam(3) that allows a administrator to limit access from specified
remote hosts or terminals. Unlike the Linux pam_access, pam_login_access
is missing some features which are added by this commit:
Access file can now be specified. The default remains /etc/access.conf.
The syntax is consistent with Linux pam_access.
By default usernames are matched. If the username fails to match a match
against a group name is attempted. The new nodefgroup module option will
only match a username and no attempt to match a group name is made.
Group names must be specified in brackets, "()" when nodefgroup is
specified. Otherwise the old backward compatible behavior is used.
This is consistent with Linux pam_access.
A new field separator module option allows the replacement of the default
colon (:) with any other character. This facilitates potential future
specification of X displays. This is also consistent with Linux pam_access.
A new list separator module option to replace the default space/comma/tab
with another character. This too is consistent with Linux pam_access.
Linux pam_access options not implemented in this commit are the debug
and audit options. These will be implemented at a later date.
Reviewed by: bjk, bcr (for manpages)
Approved by: des (blanket, implicit)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D23198
match the primary group a user belongs to. This commit extends the
match to secondary groups a user belongs to as well, just as the Linux
pam_access(5) does.
Approved by: des (implicit, blanket)
as in the login.access(5) man page. However strcasecmp() is used to compare
for these special strings. Because of this User accounts and groups with
the corresponding lowercase names are misintrepreted to have special
whereas they should not.
This commit fixes this, conforming to the man page and to how the Linux
pam_access(8) handles these special words.
Approved by: des (implicit, blanket)
files. This allows for loading, during the same invocation of ippool, of
multiple sources of input using multiple tools to concurrently maintain the
files such as fail2ban, macro preprocessors, and manually.
MFC after: 1 week
Among the changes from before:
- Add support for extended colors on widechar version
- Enable ncurses extended functions
- Enable version 2 of the extended mouse support
- Enable SCREEN extensions
Modification that differs from upstream:
- _nc_delink_entries used to be exposed and was turn static,
turn it back as dynamic to not break abi
- Adapt our old termcap.c to modern ncurses
MFC after: 3 weeks
Japanese keyboards traditionally use 0x5c for
both Japanese yen sign key and backslash key.
While a Japanese yen sign is depicted on the keytop,
most of Japanese expect that the scan code 0x7d gives
a backslash (0x5c), not a Japanese yen sign (0xa5).
This is because JIS X 0201 encoding (aka ISO/IEC 646-JA,
an extended version of ASCII which is very popular
in Japan) has Japanese yen sign at 0x5c and
no backslash. On the other hand, ISO/IEC 8859-1
has Japanese yen sign at 0xa5. This difference has
caused a confusion after Unicode became popular since
ISO/IEC 10646 adopted 8859-1 for the plane 0.
MFC after: 1 week
in reclaim_pv_chunk_domain(), when we switch to a new target pmap from which
we are trying to reclaim a pv chunk, always update the current PTE bitmasks
to match.
Reviewed by: kib, markj
Approved by: imp (mentor)
Sponsored by: Netflix
Add casts and L suffixes to libc quad support, to work around various
-Werror warnings from clang 10.0.0, such as:
lib/libc/quad/fixdfdi.c:57:12: error: implicit conversion from 'long long' to 'double' changes value from 9223372036854775807 to 9223372036854775808 [-Werror,-Wimplicit-int-float-conversion]
if (x >= QUAD_MAX)
~~ ^~~~~~~~
/usr/obj/usr/src/powerpc.powerpc/tmp/usr/include/sys/limits.h:89:19: note: expanded from macro 'QUAD_MAX'
#define QUAD_MAX (__QUAD_MAX) /* max value for a quad_t */
^~~~~~~~~~
/usr/obj/usr/src/powerpc.powerpc/tmp/usr/include/machine/_limits.h:91:20: note: expanded from macro '__QUAD_MAX'
#define __QUAD_MAX __LLONG_MAX /* max value for a quad_t */
^~~~~~~~~~~
/usr/obj/usr/src/powerpc.powerpc/tmp/usr/include/machine/_limits.h:75:21: note: expanded from macro '__LLONG_MAX'
#define __LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */
^~~~~~~~~~~~~~~~~~~~
and many instances of:
lib/libc/quad/fixunsdfdi.c:73:17: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
toppart = (x - ONE_HALF) / ONE;
^~~~~~~~
lib/libc/quad/fixunsdfdi.c:45:19: note: expanded from macro 'ONE_HALF'
#define ONE_HALF (ONE_FOURTH * 2.0)
^~~~~~~~~~
lib/libc/quad/fixunsdfdi.c:44:23: note: expanded from macro 'ONE_FOURTH'
#define ONE_FOURTH (1 << (LONG_BITS - 2))
^ ~~~~~~~~~~~~~~~
lib/libc/quad/fixunsdfdi.c:73:29: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
toppart = (x - ONE_HALF) / ONE;
^~~
lib/libc/quad/fixunsdfdi.c:46:15: note: expanded from macro 'ONE'
#define ONE (ONE_FOURTH * 4.0)
^~~~~~~~~~
lib/libc/quad/fixunsdfdi.c:44:23: note: expanded from macro 'ONE_FOURTH'
#define ONE_FOURTH (1 << (LONG_BITS - 2))
^ ~~~~~~~~~~~~~~~
MFC after: 3 days
Disable new clang 10.0.0 warnings about misleading indentation in
sys/contrib/ncsw/Peripherals/FM/fman_ncsw.c.
This is horribly formatted contributed code, and fixing it is not worth
the effort.
MFC after: 3 days
Work around new clang 10.0.0 -Werror warning:
sys/arm/allwinner/aw_cir.c:208:41: error: converting the result of '<<' to a boolean; did you mean '((1 & 255) << 23) != 0'? [-Werror,-Wint-in-bool-context]
active_delay = (AW_IR_ACTIVE_T + 1) * (AW_IR_ACTIVE_T_C ? 128 : 1);
^
sys/arm/allwinner/aw_cir.c:130:39: note: expanded from macro 'AW_IR_ACTIVE_T_C'
#define AW_IR_ACTIVE_T_C ((1 & 0xff) << 23)
^
Add the != 0 part to indicate that we indeed want to compare against
zero.
MFC after: 3 days
-Werror warnings from clang 10.0.0, such as:
lib/libc/quad/fixdfdi.c:57:12: error: implicit conversion from 'long long' to 'double' changes value from 9223372036854775807 to 9223372036854775808 [-Werror,-Wimplicit-int-float-conversion]
if (x >= QUAD_MAX)
~~ ^~~~~~~~
/usr/obj/usr/src/powerpc.powerpc/tmp/usr/include/sys/limits.h:89:19: note: expanded from macro 'QUAD_MAX'
#define QUAD_MAX (__QUAD_MAX) /* max value for a quad_t */
^~~~~~~~~~
/usr/obj/usr/src/powerpc.powerpc/tmp/usr/include/machine/_limits.h:91:20: note: expanded from macro '__QUAD_MAX'
#define __QUAD_MAX __LLONG_MAX /* max value for a quad_t */
^~~~~~~~~~~
/usr/obj/usr/src/powerpc.powerpc/tmp/usr/include/machine/_limits.h:75:21: note: expanded from macro '__LLONG_MAX'
#define __LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */
^~~~~~~~~~~~~~~~~~~~
and many instances of:
lib/libc/quad/fixunsdfdi.c:73:17: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
toppart = (x - ONE_HALF) / ONE;
^~~~~~~~
lib/libc/quad/fixunsdfdi.c:45:19: note: expanded from macro 'ONE_HALF'
#define ONE_HALF (ONE_FOURTH * 2.0)
^~~~~~~~~~
lib/libc/quad/fixunsdfdi.c:44:23: note: expanded from macro 'ONE_FOURTH'
#define ONE_FOURTH (1 << (LONG_BITS - 2))
^ ~~~~~~~~~~~~~~~
lib/libc/quad/fixunsdfdi.c:73:29: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
toppart = (x - ONE_HALF) / ONE;
^~~
lib/libc/quad/fixunsdfdi.c:46:15: note: expanded from macro 'ONE'
#define ONE (ONE_FOURTH * 4.0)
^~~~~~~~~~
lib/libc/quad/fixunsdfdi.c:44:23: note: expanded from macro 'ONE_FOURTH'
#define ONE_FOURTH (1 << (LONG_BITS - 2))
^ ~~~~~~~~~~~~~~~
clang binary, with:
ld: error: undefined symbol: llvm::EnableABIBreakingChecks
>>> referenced by PlistDiagnostics.cpp
>>> PlistDiagnostics.o:(.sdata+0x0) in archive /usr/obj/usr/src/riscv.riscv64/lib/clang/libclang/libclang.a
[... many more like this ...]
sys/arm/allwinner/aw_cir.c:208:41: error: converting the result of '<<' to a boolean; did you mean '((1 & 255) << 23) != 0'? [-Werror,-Wint-in-bool-context]
active_delay = (AW_IR_ACTIVE_T + 1) * (AW_IR_ACTIVE_T_C ? 128 : 1);
^
sys/arm/allwinner/aw_cir.c:130:39: note: expanded from macro 'AW_IR_ACTIVE_T_C'
#define AW_IR_ACTIVE_T_C ((1 & 0xff) << 23)
^
Add the != 0 part to indicate that we indeed want to compare against
zero.
