Merge remote-tracking branch 'remotes/bsdimp/tags/bsd-user-arm-2022q1-pull-request' into staging

bsd-user: upstream signal implementation

Upstream the bsd-user fork signal implementation, for the m

Merge remote-tracking branch 'remotes/bsdimp/tags/bsd-user-arm-2022q1-pull-request' into staging

bsd-user: upstream signal implementation

Upstream the bsd-user fork signal implementation, for the most part. This
series of commits represents nearly all of the infrastructure that surround
signals, except the actual system call glue (that was also reworked in the
fork and needs its own series). In addition, this adds the sigsegv and sigbus
code to arm. Even in the fork, we don't have good x86 signal implementation,
so there's little to upstream for that at the moment.

bsd-user's signal implementation is similar to linux-user's. The full context
can be found in the bsd-user's fork's 'blitz branch' at
https://github.com/qemu-bsd-user/qemu-bsd-user/tree/blitz which shows how these
are used to implement various system calls. Since this was built from
linux-user's stack stuff, evolved for BSD with the passage of a few years, it
no-doubt missed some bug fixes from linux-user (though nothing obvious stood out
in the quick comparison I made). After the first round of reviews, many of these
improvements have been incorporated.

Patchew history: https://patchew.org/QEMU/20220125012947.14974-1-imp@bsdimp.com/

# gpg: Signature made Mon 31 Jan 2022 19:55:51 GMT
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100

* remotes/bsdimp/tags/bsd-user-arm-2022q1-pull-request: (40 commits)
bsd-user/freebsd/target_os_ucontext.h: Prefer env as arg name for CPUArchState args
bsd-user: Rename arg name for target_cpu_reset to env
MAINTAINERS: Add tests/vm/*bsd to the list to get reviews on
bsd-user/signal.c: do_sigaltstack
bsd-user/signal.c: implement do_sigaction
bsd-user/signal.c: implement do_sigreturn
bsd-user/signal.c: process_pending_signals
bsd-user/signal.c: tswap_siginfo
bsd-user/signal.c: handle_pending_signal
bsd-user/signal.c: setup_frame
bsd-user/signal.c: sigset manipulation routines.
bsd-user/signal.c: Fill in queue_signal
bsd-user/signal.c: Implement dump_core_and_abort
bsd-user/strace.c: print_taken_signal
bsd-user/signal.c: Implement host_signal_handler
bsd-user/signal.c: Implement rewind_if_in_safe_syscall
bsd-user/signal.c: host_to_target_siginfo_noswap
bsd-user: Add trace events for bsd-user
bsd-user: Add host signals to the build
bsd-user/host/x86_64/host-signal.h: Implement host_signal_*
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

bsd-user/signal.c: handle_pending_signal

Handle a queued signal.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.c

bsd-user/signal.c: handle_pending_signal

Handle a queued signal.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/signal.c: setup_frame

setup_frame sets up a signalled stack frame. Associated routines to
extract the pointer to the stack frame and to support alternate stacks.

Signed-off-by: Stacey Son

bsd-user/signal.c: setup_frame

setup_frame sets up a signalled stack frame. Associated routines to
extract the pointer to the stack frame and to support alternate stacks.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/signal.c: Fill in queue_signal

Fill in queue signal implementation, as well as routines allocate and
delete elements of the signal queue.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signe

bsd-user/signal.c: Fill in queue_signal

Fill in queue signal implementation, as well as routines allocate and
delete elements of the signal queue.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/strace.c: print_taken_signal

print_taken_signal() prints signals when we're tracing signals.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Sig

bsd-user/strace.c: print_taken_signal

print_taken_signal() prints signals when we're tracing signals.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/signal.c: Implement rewind_if_in_safe_syscall

Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org

bsd-user/signal.c: Implement rewind_if_in_safe_syscall

Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/signal.c: Implement signal_init()

Initialize the signal state for the emulator. Setup a set of sane
default signal handlers, mirroring the host's signals. For fatal signals
(those that exit

bsd-user/signal.c: Implement signal_init()

Initialize the signal state for the emulator. Setup a set of sane
default signal handlers, mirroring the host's signals. For fatal signals
(those that exit by default), establish our own set of signal
handlers. Stub out the actual signal handler we use for the moment.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> XXX SIGPROF PENDING

show more ...

bsd-user/signal-common.h: Move signal functions prototypes to here

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

bsd-user: Bring in docs from linux-user for signal_pending

This is currently unused, so no code adjustments are needed.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <r

bsd-user: Bring in docs from linux-user for signal_pending

This is currently unused, so no code adjustments are needed.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user: Remove vestiges of signal queueing code

bsd-user was copied from linux-user at a time when it queued
signals. Remove those vestiges of thse code. Retain the init function,
even though it's

bsd-user: Remove vestiges of signal queueing code

bsd-user was copied from linux-user at a time when it queued
signals. Remove those vestiges of thse code. Retain the init function,
even though it's now empty since other stuff will likely be added
there. Make it static since it's not called from outside of main.c

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

Merge remote-tracking branch 'remotes/bsdimp/tags/pull-bsd-user-20211018-pull-request' into staging

bsd-user pull request: merge dependencies for next architectures

Merge the dependencies for arm,

Merge remote-tracking branch 'remotes/bsdimp/tags/pull-bsd-user-20211018-pull-request' into staging

bsd-user pull request: merge dependencies for next architectures

Merge the dependencies for arm, aarch64, and riscv64 architectures. This joins
together two patch series:

[PATCH v2 00/15] bsd-user: misc cleanup for aarch64 import

Prepare for aarch64 support (the next architecture to be upstreamed). As the
aarch64 emulation is more complete, it relies on a number of different items.
In some cases, I've pulled in the full support from bsd-user fork. In other
cases I've created a simple stub (as is the case for signals, which have
independent changes pending, so I wanted to be as minimal as possible. Since
all pre-12.2 support was purged from the bsd-user fork, go ahead and remove it
here. FreeBSD 11.x goes ouft of support at the end of the month. Remove what
little multi-version support that's in upstream.

and

[PATCH v3 0/9] bsd-user mmap fixes
This series synchronizes mmap.c with the bsd-user fork. This is a mix of old bug
fixes pulled in from linux-user, as well as some newer fixes to adress bugs
found in check-tcg and recent FreeBSD developments. There are also a couple of
style commits. Updated to migrate debugging to qemu_log.

as well as a couple of minor rebase tweaks. In addition, the next two
architectures I plan on upstreaming (arm and riscv64) also have their prereqs
satisfied with this request.

v2: Remove accidental module regression in patch 7 and try again.

# gpg: Signature made Mon 18 Oct 2021 12:00:28 PM PDT
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100

* remotes/bsdimp/tags/pull-bsd-user-20211018-pull-request: (23 commits)
bsd-user/signal: Create a dummy signal queueing function
bsd-user: Rename sigqueue to qemu_sigqueue
bsd-user/sysarch: Move to using do_freebsd_arch_sysarch interface
bsd-user: Add stop_all_tasks
bsd-user: Remove used from TaskState
bsd-user/target_os_elf: If ELF_HWCAP2 is defined, publish it
bsd-user/target_os_elf.h: Remove fallback ELF_HWCAP and reorder
bsd-user: move TARGET_MC_GET_CLEAR_RET to target_os_signal.h
bsd-user/errno_defs.h: Add internal error numbers
bsd-user: export get_errno and is_error from syscall.c
bsd-user: TARGET_RESET define is unused, remove it
bsd-user/strace.list: Remove support for FreeBSD versions older than 12.0
bsd-user/target_os-user.h: Remove support for FreeBSD older than 12.0
meson: *-user: only descend into *-user when configured
bsd-user/mmap.c: assert that target_mprotect cannot fail
bsd-user/mmap.c: Implement MAP_EXCL, required by jemalloc in head
bsd-user/mmap.c: Don't mmap fd == -1 independently from MAP_ANON flag
bsd-user/mmap.c: Convert to qemu_log logging for mmap debugging
bsd-user/mmap.c: mmap prefer MAP_ANON for BSD
bsd-user/mmap.c: mmap return ENOMEM on overflow
...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/signal: Create a dummy signal queueing function

Create dummy signal queueing function so we can start to integrate other
architectures (at the cost of signals remaining broken) to tame the

bsd-user/signal: Create a dummy signal queueing function

Create dummy signal queueing function so we can start to integrate other
architectures (at the cost of signals remaining broken) to tame the
dependency graph a bit and to bring in signals in a more controlled
fashion. Log unimplemented events to it in the mean time.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

show more ...

bsd-user: Rename sigqueue to qemu_sigqueue

To avoid a name clash with FreeBSD's sigqueue data structure in
signalvar.h, rename sigqueue to qemu_sigqueue. This structure
is currently defined, but unu

bsd-user: Rename sigqueue to qemu_sigqueue

To avoid a name clash with FreeBSD's sigqueue data structure in
signalvar.h, rename sigqueue to qemu_sigqueue. This structure
is currently defined, but unused.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

show more ...

bsd-user/sysarch: Move to using do_freebsd_arch_sysarch interface

do_freebsd_arch_sysarch() exists in $ARCH/target_arch_sysarch.h for x86.
Call it from do_freebsd_sysarch() and remove the mostly dup

bsd-user/sysarch: Move to using do_freebsd_arch_sysarch interface

do_freebsd_arch_sysarch() exists in $ARCH/target_arch_sysarch.h for x86.
Call it from do_freebsd_sysarch() and remove the mostly duplicate
version in syscall.c. Future changes will move it to os-sys.c and
support other architectures.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

show more ...

bsd-user: Add stop_all_tasks

Similar to the same function in linux-user: this stops all the current tasks.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
R

bsd-user: Add stop_all_tasks

Similar to the same function in linux-user: this stops all the current tasks.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

show more ...

bsd-user: Remove used from TaskState

The 'used' field in TaskState is write only. Remove it from TaskState.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.hende

bsd-user: Remove used from TaskState

The 'used' field in TaskState is write only. Remove it from TaskState.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

show more ...

bsd-user: export get_errno and is_error from syscall.c

Make get_errno and is_error global so files other than syscall.c can use
them.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richar

bsd-user: export get_errno and is_error from syscall.c

Make get_errno and is_error global so files other than syscall.c can use
them.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

show more ...

Merge remote-tracking branch 'remotes/bsdimp/tags/pull-bsd-user-20210910' into staging

This series of patches gets me to the point that I can run "Hello World" on i386
and x86_64. This is for static

Merge remote-tracking branch 'remotes/bsdimp/tags/pull-bsd-user-20210910' into staging

This series of patches gets me to the point that I can run "Hello World" on i386
and x86_64. This is for static binaries only, that are relatively small, but
it's better than the 100% instant mmap failre that is the current state of all
things bsd-user in upstream qemu. Future patch sets will refine this, add
the missing system calls, fix bugs preventing more sophisticated programms
from running and add a bunch of new architecture support.

There's three large themes in these patches, though the changes that
represent them are interrelated making it hard to separate out further.
1. Reorganization to support multiple OS and architectures (though I've only
tested FreeBSD, other BSDs might not even compile yet).
2. Diff reduction with the bsd-user fork for several files. These diffs include
changes that borrowed from linux-user as well as changes to make things work
on FreeBSD. The records keeping when this was done, however, was poor at
best, so many of the specific borrowings are going unacknowledged here, apart
from this general ack. These diffs also include some minor code shuffling.
Some of the changes are done specifically to make it easier to rebase
the bsd-user fork's changes when these land in the tree (a number of changes
have been pushed there to make this more possible).
3. Filling in the missing pieces to make things work. There's many changes to
elfload to make it load things in the right places, to find the interpreter
better, etc. There's changes to mmap.c to make the mappings work better and
there's changes to main.c that were inspired, at least, by now-ancient changes
to linux-user's main.c.

I ran checkpatch.pl on this, and there's 350-odd errors it identifies (the vast
majoirty come from BSD's fetish for tabs), so there will need to be a V2 to fix
this at the very least. In addition, the change set is big (about +~4.5k/-~2.5k
lines), so I anticipate some iteration as well just based on its sheer
size. I've tried to keep each set small to make it easy to review in isolation,
but I've also allowed some interrelated ones to get a little bigger than I'd
normally like. I've not done the customary documentation of the expected
checkpatch.pl output because it is large, and because I wanted to get review
of the other parts rolling to get this project unstuck. Future versions of the
patch will document the expected output.

In addition, I noticed a number of places where I could modernize to make the
code match things like linux-user better. I've resisted the urge to do these at
this time, since it would complicate merging the other ~30k lines of diff that
remains after this batch. Future batches should generally be smaller once this
one has landed since they are, by and large, either a bunch of new files to
support armv7, aarch64, riscv64, mips, mipsel, mips64, ppc, ppc64 and ppc64le,
or are adding system calls, which can be done individually or small groups. I've
removed sparc and sparc64 support as they've been removed from FreeBSD and
have been near totally busted for years.

Stacey Son did the bulk of this work originally, but since I had to move things
around so much and/or retool that work in non-trivial ways, I've kept myself as
author, and added his signed-off-by line. I'm unsure of the qemu standard
practice for this, but am happy to learn if this is too far outside its current
mainstream. For a while Sean Bruno did the merges from upstream, and he's
credited using his signed-off-by in appropriate places, though for this patch
set there's only a few. I've tried to ensure that others who have work in
individual patches that I've aggregated together also are reflected in their
signed-off-by. Given the chaotic stat of the upstream repo for its early
history, this may be the best that can be reconstructed at this late date. Most
of these files are 'foundational' so have existed from the earliest days when
record keeping wasn't quite what I'd wish for in hindsight. There was only
really one change that I could easily cherry-pick (Colin's), so I did that.

# gpg: Signature made Fri 10 Sep 2021 21:24:08 BST
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100

* remotes/bsdimp/tags/pull-bsd-user-20210910: (42 commits)
bsd-user: Update mapping to handle reserved and starting conditions
bsd-user: Add '-0 argv0' option to bsd-user/main.c
bsd-user: Implement interlock for atomic operations
bsd-user: move gemu_log to later in the file
bsd-user: Refactor load_elf_sections and is_target_elf_binary
bsd-user: elfload.c style catch up patch
bsd-user: add stubbed out core dump support
bsd-user: Add target_os_user.h to capture the user/kernel structures
bsd-user: Add target_arch_reg to describe a target's register set
bsd-user: update debugging in mmap.c
bsd-user: Rewrite target system call definintion glue
bsd-user: Remove dead #ifdefs from elfload.c
bsd-user: elf cleanup
bsd-user: Add architecture specific signal tramp code
bsd-user: Move stack initializtion into a per-os file.
bsd-user: Implement --seed and initialize random state
bsd-user: *BSD specific siginfo defintions
bsd-user: Add system independent stack, data and text limiting
bsd-user: Create target specific vmparam.h
bsd-user: define max args in terms of pages
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

bsd-user: Update mapping to handle reserved and starting conditions

Update the reserved base based on what platform we're on, as well as the
start of the mmap range. Update routines that find va ran

bsd-user: Update mapping to handle reserved and starting conditions

Update the reserved base based on what platform we're on, as well as the
start of the mmap range. Update routines that find va ranges to interact
with the reserved ranges as well as properly align the mapping (this is
especially important for targets whose page size does not match the
host's). Loop where appropriate when the initial address space offered
by mmap does not meet the contraints.

This has 18e80c55bb6 from linux-user folded in to the upstream
bsd-user code as well.

Signed-off-by: Mikaël Urankar <mikael.urankar@gmail.com>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

show more ...

bsd-user: add stubbed out core dump support

Add a stubbed-out version of the bsd-user fork's core dump support. This
allows elfload.c to be almost the same between what's upstream and
what's in qemu

bsd-user: add stubbed out core dump support

Add a stubbed-out version of the bsd-user fork's core dump support. This
allows elfload.c to be almost the same between what's upstream and
what's in qemu-project upstream w/o the burden of reviewing the core
dump support.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user: elf cleanup

Move OS-dependent defines into target_os_elf.h. Move the architectural
dependent stuff into target_arch_elf.h. Adjust elfload.c to use
target_create_elf_tables instead of creat

bsd-user: elf cleanup

Move OS-dependent defines into target_os_elf.h. Move the architectural
dependent stuff into target_arch_elf.h. Adjust elfload.c to use
target_create_elf_tables instead of create_elf_tables.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Justin Hibbits <chmeeedalf@gmail.com>
Signed-off-by: Alexander Kabaev <kan@FreeBSD.ORG>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

show more ...

bsd-user: *BSD specific siginfo defintions

Add FreeBSD, NetBSD and OpenBSD values for the various signal info types
and defines to decode different signals to discover more information
about the spe

bsd-user: *BSD specific siginfo defintions

Add FreeBSD, NetBSD and OpenBSD values for the various signal info types
and defines to decode different signals to discover more information
about the specific signal types.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

show more ...

bsd-user: Add system independent stack, data and text limiting

Eliminate the x86 specific stack stuff in favor of more generic control
over the process size:
target_maxtsiz max text size
ta

bsd-user: Add system independent stack, data and text limiting

Eliminate the x86 specific stack stuff in favor of more generic control
over the process size:
target_maxtsiz max text size
target_dfldsiz initial data size limit
target_maxdsiz max data size
target_dflssiz initial stack size limit
target_maxssiz max stack size
target_sgrowsiz amount to grow stack
These can be set on a per-arch basis, and the stack size can be set
on the command line. Adjust the stack size parameters at startup.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user: Create target specific vmparam.h

Target specific values for vm parameters and details.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by

bsd-user: Create target specific vmparam.h

Target specific values for vm parameters and details.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

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bsd-user: define max args in terms of pages

For 32-bit platforms, pass in up to 256k of args. For 64-bit, bump that
to 512k.

Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Los

bsd-user: define max args in terms of pages

For 32-bit platforms, pass in up to 256k of args. For 64-bit, bump that
to 512k.

Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...