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2021-10-18bsd-user/signal: Create a dummy signal queueing functionWarner Losh2-2/+11
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>
2021-10-18bsd-user: Rename sigqueue to qemu_sigqueueWarner Losh1-7/+7
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>
2021-10-18bsd-user/sysarch: Move to using do_freebsd_arch_sysarch interfaceWarner Losh5-50/+36
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>
2021-10-18bsd-user: Add stop_all_tasksWarner Losh2-0/+10
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>
2021-10-18bsd-user: Remove used from TaskStateWarner Losh2-2/+0
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>
2021-10-18bsd-user/target_os_elf: If ELF_HWCAP2 is defined, publish itWarner Losh1-0/+4
Some architectures publish AT_HWCAP2 as well as AT_HWCAP. Those architectures will define ELF_HWCAP2 in their target_arch_elf.h files for the value for this process. If it is defined, then publish it. 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>
2021-10-18bsd-user/target_os_elf.h: Remove fallback ELF_HWCAP and reorderWarner Losh1-6/+2
All architectures have a ELF_HWCAP, so remove the fallback ifdef. Place ELF_HWCAP in the same order as on native FreeBSD. 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>
2021-10-18bsd-user: move TARGET_MC_GET_CLEAR_RET to target_os_signal.hWarner Losh3-4/+3
Move TARGET_MC_GET_CLEAR_RET to freebsd/target_os_signal.h since it's architecture agnostic on FreeBSD. 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>
2021-10-18bsd-user/errno_defs.h: Add internal error numbersStacey Son1-3/+10
To emulate signals and interrupted system calls, we need to have the same mechanisms we have in the kernel, including these errno values. 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>
2021-10-18bsd-user: export get_errno and is_error from syscall.cWarner Losh2-5/+9
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>
2021-10-18bsd-user: TARGET_RESET define is unused, remove itWarner Losh2-4/+0
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>
2021-10-18bsd-user/strace.list: Remove support for FreeBSD versions older than 12.0Warner Losh1-11/+0
Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-10-18bsd-user/target_os-user.h: Remove support for FreeBSD older than 12.0Warner Losh1-99/+1
Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-10-18meson: *-user: only descend into *-user when configuredWarner Losh1-0/+4
To increase flexibility, only descend into *-user when that is configured. This allows *-user to selectively include directories based on the host OS which may not exist on all hosts. Adopt Paolo's suggestion of checking the configuration in the directories that know about the configuration. Message-Id: <20210926220103.1721355-2-f4bug@amsat.org> Message-Id: <20210926220103.1721355-3-f4bug@amsat.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Warner Losh <wlosh@bsdimp.com> Acked-by: Paolo Bonzini <pbonzinni@redhat.com> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-10-18bsd-user/mmap.c: assert that target_mprotect cannot failWarner Losh1-4/+1
Similar to the equivalent linux-user change 86abac06c14. All error conditions that target_mprotect checks are also checked by target_mmap. EACCESS cannot happen because we are just removing PROT_WRITE. ENOMEM should not happen because we are modifying a whole VMA (and we have bigger problems anyway if it happens). Fixes a Coverity false positive, where Coverity complains about target_mprotect's return value being passed to tb_invalidate_phys_range. Signed-off-by: Mikaël Urankar <mikael.urankar@gmail.com> 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>
2021-10-18bsd-user/mmap.c: Implement MAP_EXCL, required by jemalloc in headKyle Evans1-3/+7
jemalloc requires a working MAP_EXCL. Ensure that no page is double mapped when specified. In addition, use guest_range_valid_untagged to test for valid ranges of pages rather than an incomplete inlined version of the test that might be wrong. Signed-off-by: Kyle Evans <kevans@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-18bsd-user/mmap.c: Don't mmap fd == -1 independently from MAP_ANON flagWarner Losh1-5/+25
Switch checks for !(flags & MAP_ANONYMOUS) with checks for fd != -1. MAP_STACK and MAP_GUARD both require fd == -1 and don't require mapping the fd either. Add analysis from Guy Yur detailing the different cases for MAP_GUARD and MAP_STACK. Signed-off-by: Guy Yur <guyyur@gmail.com> [ partially merged before, finishing the job and documenting origin] Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-10-18bsd-user/mmap.c: Convert to qemu_log logging for mmap debuggingWarner Losh1-30/+23
Convert DEBUG_MMAP to qemu_log CPU_LOG_PAGE. 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>
2021-10-17bsd-user/mmap.c: mmap prefer MAP_ANON for BSDWarner Losh1-6/+5
MAP_ANON and MAP_ANONYMOUS are identical. Prefer MAP_ANON for BSD since the file is now a confusing mix of the two. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-10-17bsd-user/mmap.c: mmap return ENOMEM on overflowWarner Losh1-1/+8
mmap should return ENOMEM on len overflow rather than EINVAL. Return EINVAL when len == 0 and ENOMEM when the rounded to a page length is 0. Found by make check-tcg. 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>
2021-10-17bsd-user/mmap.c: MAP_ symbols are defined, so no need for ifdefsWarner Losh1-14/+0
All these MAP_ symbols are always defined on supported FreeBSD versions (12.2 and newer), so remove the #ifdefs since they aren't needed. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-10-17bsd-user/mmap.c: check pread's return value to fix warnings with _FORTIFY_SOURCEMikaël Urankar1-2/+6
Simmilar to the equivalent linux-user: commit fb7e378cf9c, which added checking to pread's return value. Update to current qemu standards with {} around the if statement. Signed-off-by: Mikaël Urankar <mikael.urankar@gmail.com> 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>
2021-10-17bsd-user/mmap.c: Always zero MAP_ANONYMOUS memory in mmap_frag()Mikaël Urankar1-1/+3
Similar to the equivalent linux-user commit e6deac9cf99 When mapping MAP_ANONYMOUS memory fragments, still need notice about to set it zero, or it will cause issues. Signed-off-by: Mikaël Urankar <mikael.urankar@gmail.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-09-14user: Remove cpu_get_pic_interrupt() stubsPhilippe Mathieu-Daudé2-10/+0
cpu_get_pic_interrupt() is now unreachable from user-mode, delete the unnecessary stubs. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210911165434.531552-25-f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: Update mapping to handle reserved and starting conditionsWarner Losh3-71/+392
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>
2021-09-10bsd-user: Add '-0 argv0' option to bsd-user/main.cColin Percival1-0/+6
Previously it was impossible to emulate a program with a file name different from its argv[0]. With this change, you can run qemu -0 fakename realname args which runs the program "realname" with an argv of "fakename args". Signed-off-by: Colin Percival <cperciva@tarsnap.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: Implement interlock for atomic operationsWarner Losh1-0/+24
Implement the internlock in fork_start() and fork_end() to properly cope with atomic operations and to safely keep state for parent and child processes. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: move gemu_log to later in the fileWarner Losh1-8/+9
Signed-off-by: Warner Losh <imp@bsdimp.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-09-10bsd-user: Refactor load_elf_sections and is_target_elf_binaryWarner Losh1-186/+158
Factor out load_elf_sections and is_target_elf_binary out of load_elf_interp. 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> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-09-10bsd-user: elfload.c style catch up patchWarner Losh1-104/+104
Various style fixes to elfload.c that were too painful to make earlier in this series. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: add stubbed out core dump supportWarner Losh3-2/+36
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>
2021-09-10bsd-user: Add target_os_user.h to capture the user/kernel structuresWarner Losh1-0/+427
This file evolved over the years to capture the user/kernel interfaces, including those that changed over time. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Michal Meloun <mmel@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>
2021-09-10bsd-user: Add target_arch_reg to describe a target's register setWarner Losh2-0/+174
target_reg_t is the normal register. target_fpreg_t is the floating point registers. target_copy_regs copies the registers out of CPU context for things like core dumps. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: update debugging in mmap.cWarner Losh1-17/+38
Update the debugging code for new features and different targets. Signed-off-by: Mikaël Urankar <mikael.urankar@gmail.com> Signed-off-by: Sean Bruno <sbruno@FreeBSD.org> Signed-off-by: Kyle Evans <kevans@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>
2021-09-10bsd-user: Rewrite target system call definintion glueWarner Losh3-208/+162
Rewrite target definnitions to interface with the FreeBSD system calls. This covers basic types (time_t, iovec, umtx_time, timespec, timeval, rusage, rwusage) and basic defines (mmap, rusage). Also included are FreeBSD version-specific variations. 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>
2021-09-10bsd-user: Remove dead #ifdefs from elfload.cWarner Losh1-20/+0
LOW_ELF_STACK doesn't exist on FreeBSD and likely never will. Remove it. Likewise, remove an #if 0 block that's not useful Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: elf cleanupWarner Losh5-167/+454
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>
2021-09-10bsd-user: Add architecture specific signal tramp codeWarner Losh2-0/+58
Add a stubbed out version of setup_sigtramp. This is not yet used for x86, but is used for other architectures. This will be connected in future commits. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: Move stack initializtion into a per-os file.Warner Losh3-0/+293
Move all of the stack initialization into target_os_stack.h. Each BSD sets up processes a little differently. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: Implement --seed and initialize random stateWarner Losh1-0/+18
Copy --seed implementation (translated from linux-user's newer command line scheme to the older one bsd-user still uses). Initialize the randomness with the glib if a specific seed is specified or use the qcrypto library if not. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: *BSD specific siginfo defintionsWarner Losh10-10/+714
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>
2021-09-10bsd-user: Add system independent stack, data and text limitingWarner Losh3-16/+45
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>
2021-09-10bsd-user: Create target specific vmparam.hWarner Losh4-0/+131
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>
2021-09-10bsd-user: define max args in terms of pagesWarner Losh1-4/+11
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>
2021-09-10bsd-user: Include more things in qemu.hWarner Losh1-2/+4
Include more header files to match bsd-user fork. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: pull in target_arch_thread.h update target_arch_elf.hWarner Losh8-85/+171
Update target_arch_elf.h to remove thread_init. Move its contents to target_arch_thread.h and rename to target_thread_init(). Update elfload.c to call it. Create thread_os_thread.h to hold the os specific parts of the thread and threat manipulation routines. Currently, it just includes target_arch_thread.h. target_arch_thread.h contains the at the moment unused target_thread_set_upcall which will be used in the future when creating actual thread (i386 has this stubbed, but other architectures in the bsd-user tree have real ones). FreeBSD doesn't do AT_HWCAP, so remove that code. Linux does, and this code came from there. These changes are all interrelated and could be brokend down, but seem to represent a reviewable changeset since most of the change is boiler plate. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
2021-09-10bsd-user: Move per-cpu code into target_arch_cpu.hWarner Losh6-303/+473
Move cpu_loop() into target_cpu_loop(), and put that in target_arch_cpu.h for each architecture. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: start to move target CPU functions to target_arch*Warner Losh5-35/+212
Move the CPU functions into target_arch_cpu.c that are unique to each CPU. These are defined in target_arch.h. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-10bsd-user: save the path to the qemu emulatorWarner Losh2-0/+22
Save the path to the qemu emulator. This will be used later when we have a more complete implementation of exec. 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>
2021-09-10bsd-user: Include host-os.h from mainWarner Losh4-1/+9
Include host-os.h from main.c to pick up the default OS to emulate. Set that default in main(). Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
generated by cgit v1.1 at 2024-12-27 13:08:15 +0000