Merge tag 'bsd-user-mmap-pull-request' of https://gitlab.com/bsdimp/qemu into staging

bsd-user mmap and exec branches from gsoc

This pull request represents the mmap and exec changes from Karim Tah

Merge tag 'bsd-user-mmap-pull-request' of https://gitlab.com/bsdimp/qemu into staging

bsd-user mmap and exec branches from gsoc

This pull request represents the mmap and exec changes from Karim Taha
for his GSoC project.

They represent all the mmap and exec related system calls and get bsd-user to
the point that a dynamic hello-world works (at least for armv7).

There are a couple of patch check errors, but they are the lessor evil: I made
purposely bad style choices to ensure all the commits compiled (and i undid the
style choices in subsequent commits).

I pushed an earlier version to gitlab, and all but the riscv64 pipelines were
green. Since bsd-user doesn't change anything related to ricsv64 (there's no
support in qemu-project repo, though we do have it in the bsd-user fork: coming
soon).

I think this is good to go.

https://gitlab.com/bsdimp/qemu.git

Warner

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# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
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* tag 'bsd-user-mmap-pull-request' of https://gitlab.com/bsdimp/qemu: (51 commits)
bsd-user: Add stubs for vadvise(), sbrk() and sstk()
bsd-user: Implement shmat(2) and shmdt(2)
bsd-user: Implement shmctl(2)
bsd-user: Implement shm_unlink(2) and shmget(2)
bsd-user: Implement shm_open(2)
bsd-user: Implement do_obreak function
bsd-user: Implement mincore(2)
bsd-user: Implment madvise(2) to match the linux-user implementation.
bsd-user: Implement mlock(2), munlock(2), mlockall(2), munlockall(2), minherit(2)
bsd-user: Implement msync(2)
bsd-user: Implement mprotect(2)
bsd-user: Implement mmap(2) and munmap(2)
bsd-user: Introduce bsd-mem.h to the source tree
bsd-user: Implement shmid_ds conversion between host and target.
bsd-user: Implement ipc_perm conversion between host and target.
bsd-user: Implement target_set_brk function in bsd-mem.c instead of os-syscall.c
bsd-user: Add bsd-mem.c to meson.build
bsd-user: Implement shm_rename(2) system call
bsd-user: Implement shm_open2(2) system call
bsd-user: Introduce freebsd/os-misc.h to the source tree
...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

bsd-user: Get number of cpus.

Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <2023092518242

bsd-user: Get number of cpus.

Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230925182425.3163-11-kariem.taha2.7@gmail.com>

show more ...

bsd-user: Implement host_to_target_waitstatus conversion.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.he

bsd-user: Implement host_to_target_waitstatus conversion.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230925182425.3163-10-kariem.taha2.7@gmail.com>

show more ...

bsd-user: Implement host_to_target_rusage and host_to_target_wrusage.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson

bsd-user: Implement host_to_target_rusage and host_to_target_wrusage.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230925182425.3163-9-kariem.taha2.7@gmail.com>

show more ...

bsd-user: Implement target_to_host_rlim and host_to_target_rlim conversion.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Hen

bsd-user: Implement target_to_host_rlim and host_to_target_rlim conversion.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230925182425.3163-8-kariem.taha2.7@gmail.com>

show more ...

bsd-user: Implement target_to_host_resource conversion function

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Warner Losh <imp@bsdimp

bsd-user: Implement target_to_host_resource conversion function

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230925182425.3163-7-kariem.taha2.7@gmail.com>

show more ...