Previously, a step by PT_STEP resulted in no signal being raised to
the debugger so that a step was silently completed with the program
continuing to execute after the step. Fix by raising a SIGTRAP
signal with TRAP_TRACE as the signal code.
To simplify the error handling cases (if ptrace_clear_single_step()
fails, etc.) move the handling of PTRACE_BREAKPOINT into the
gdb_trapper() function. If ptrace_clear_single_step() fails,
gdb_trapper() won't claim the fault, and the default case of
SIGILL / ILL_OPC will be used.
Differential Revision: https://reviews.freebsd.org/D16100
to the type of rate limiter being configured. For example, the class
WRR scheduler doesn't need any kbps limits (it just needs the weights
for each class), the channel scheduler doesn't need anything except the
aggregate kbps to limit the channel to, and so on.
MFC after: 3 days
Sponsored by: Chelsio Communications
* libcasper.so.0, which started in /usr/lib, then moved to /lib, but
was later replaced by libcasper.so.1
* 32-bit versions of static casper libraries
* 32-bit versions of static stand libraries
* 32-bit versions of static ifc(onfig) libraries
It works excellent, but KDB disassembler and DTrace FBT provider for
RISC-V do lack support for it. They currently handle 4-byte instructions
only, while C-compressed ISA extension introduces 2-byte instructions
freely mixing them together.
So disable it for now.
Reviewed by: markj@
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D16436
The original intention was 4 columns but with a usable a result. In
practice this was not the case. Increase the number of columns to 5
until humanize_number learns alternative ways of presenting the number.
Requested by: many
Ref D15801
Some old compatibility bits were removed in r227503 but this comment
was left behind.
Reported by: br, via review D11962
Sponsored by: The FreeBSD Foundation
All supported FreeBSD build host versions have backtrace.h, so we can
just eliminate that test. For futimes() we can test the compiler's
built-in __FreeBSD__ major version rather than relying on including
osreldate.h. This should reduce the frequency with which Clang gets
rebuilt when building world.
Reviewed by: dim
Sponsored by: The FreeBSD Foundation
code never sees FPU pcb flags not consistent with the hardware state.
This is uncovered by the eager FPU switch mode.
Analyzed, reviewed and tested by: gleb
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
This is an OFW initrd module that would load the initrd from device tree
parameters and give the to the md driver.
With this patch, it is possible to pass a rootfs image through kexec in PowerNV
mode (powerpc64). In order to user it, you should set the MD_ROOT_MEM option in
your kernel configuration.
Reviewed by: jhibbits
Approved by: jhibbits (mentor)
Differential Revision: https://reviews.freebsd.org/D15705
This paves the way for moving config files out of head/etc and into the
directories with the src.
Approved by: bapt (mentor)
Differential Revision: https://reviews.freebsd.org/D16406
declaired static. This will allow us to change the definition on arm64
as it has the same issues described in r336349.
Reviewed by: bz
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D16147
of NaNs before possible returning a NaN.
The remquo*() and remainder*() functions should now give bitwise identical
results across arches and implementations, and bitwise consistent results
(with lower precisions having truncated mantissas) across precisions. x86
already had consistency across amd64 and i386 and precisions by using the
i387 consistently and normally not using the C versions. Inconsistencies
for C reqmquol() were first detected on sparc64.
Remove double second clearing of the sign bit and extra blank lines.
[ELF] Update addends in non-allocatable sections for REL targets when
creating a relocatable output.
LLVM PR: 37735
LLVM Differential Revision: https://reviews.llvm.org/D48929
PR: 225128
Obtained from: LLVM r336799 by Igor Kudrin
remainder*(x, y) and remquo*(x, y, quo) were broken for y = 0 by changing
multiplication by y to addition of y. (When y is 0, the result should be
NaN but became 1 for finite x.)
Use a new macro nan_mix_op() to give more control over the mixing, and
expand comments.
Recent re-testing missed finding this bug since I only tested the macro
version on amd64 and i386 and these arches don't use the C versions (they
use either asm versions or builtins).
Reported by: enh via freebsd-numerics
jedec_dimm(4) is a superset of the functionality of jedec_ts(4). Mark
jedec_ts(4) as removed in FreeBSD 12, and include a pointer to the migration
instructions in the jedec_dimm(4) manpage, in both the jedec_ts(4) code and
the jedec_ts(4) manpage. Add a note to the jedec_dimm(4) manpage about the
fact that it is a superset of jedec_ts(4).
This change will be MFCed to stable/11 and stable/10; the followup change
to actually remove jedec_ts(4) from -HEAD will not.
Reviewed by: avg
MFC after: 1 week
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D16412
they use same passphrase and keyfiles.
Unique salt will be randomly generated for each provider to ensure the
Master Key for each is unique.
This change follows on from r335673 and r336602, which allowed multiple
providers to be attached in a single command.
Reviewed by: asomers
Approved by: sobomax
Differential Revision: https://reviews.freebsd.org/D16115
loading.
If we are booting in a conforming UEFI Boot Manager Environment, then
use the BootCurrent variable to find the BootXXXX we're using. Once we
find that, then if it contains more than one EFI_DEVICE_PATH in its
what to boot section, try to use the last one as the kernel to
load. This will also set the default root partition as well. If
there's only one path, or if there's an error along the way, assume
that nothing specific was specified and revert to the old
algorithm. If something was specified, but not found, then fail the
boot. Otherwise you that, specific thing. On FreeBSD, this can be set
using efibootmgr -l <loader> -k <kernel>. We try a few variations of
kernel to cope with the fact that UEFI comes from a DOS world where
paths might be upper case and/or contain back-slashes.
Note: In an ideal world, we'd work out where we are in chain loading
by looking at the passed-in image handle and doing name
matching. However, that's unreliable since at least boot1.efi booted
images don't have that, hence the assumption that loader.efi needs to
load the last thing on the list, if possible.
The reason we fail for something specific is so that we can fully
participate in the UEFI Boot Manager Protocol and fail over to the
next item in the list of BootOrder choices when something goes wrong
at this stage.
This implements was was talked about in freebsd-arch@ last year
https://docs.freebsd.org/cgi/getmsg.cgi?fetch=3576+0+archive/2017/freebsd-arch/20171022.freebsd-arch
and documented in full (after changed resulting from the discussion) in
https://docs.google.com/document/d/1aK9IqF-60JPEbUeSAUAkYjF2W_8EnmczFs6RqCT90Jg/edit#
although one or two minor details may have been modified in this
implementation to make it work, and the ZFS MEDIA PATH extension isn't
implemented. This does not yet move things to ESP:\efi\freebsd\loader.efi.
RelNotes: Yes
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16403
Lookup a block device by it's device path. We use a 'loose' lookup
whereby we scan forward to the first Media Path portion of the device
path, then look at all our handles for one whose first Media Path
matches. This will also work if the device path pointed to has a
following file path (or paths) as that's ignored. It assumes that
there's only one media path node that describes the entire device,
which is true as of the latest UEFI spec (2.7 Errata A) as far as I've
been able to determine.
Sponsored by: Netflix
Returns true if the first node pointed to by devpath1 is identical to
the first node pointed to by devpath2, with care taken to not read
past the end of the valid parts of either devpath1 or
devpath2. Otherwise, returns false.
Sponsored by: Netflix
Takes a generic device path as its input. Scans through it to find the
first media_path node in it and returns a pointer to it. If none is
found, NULL is returned.
Sponsored by: Netflix
