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141 Commits
Author SHA1 Message Date
Doug RabsonandWarner Losh e6e102b972 bsd-user: Simplify the implementation of execve 
This removes the logic which prepends the emulator to each call to
execve and fexecve. This is not necessary with the existing
imgact_binmisc support and it avoids the need to install the emulator
binary into jail environments when using 'binmiscctl --pre-open'.

Signed-off-by: Doug Rabson <dfr@rabson.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
 2024-07-23 10:50:54 -06:00
Philippe Mathieu-Daudé 827238668e exec: Move [b]tswapl() declarations to 'exec/user/tswap-target.h' 
tswapl() and bswaptls() are target-dependent and only used
by user emulation. Move their definitions to a new header:
"exec/user/tswap-target.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20231212123401.37493-17-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
 2024-04-26 17:03:05 +02:00
Ilya LeoshkevichandAlex Bennée 4edc98fcc8 {linux,bsd}-user: Pass pid to fork_end() 
The upcoming follow-fork-mode child support requires knowing the child
pid. Pass it down.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240219141628.246823-6-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-7-alex.bennee@linaro.org>
 2024-03-06 12:35:19 +00:00
Michael Tokarev 9bfba08a1f bsd-user: spelling fixes: necesary, agrument, undocummented 
Fixes: a99d740347 "bsd-user: Implement do_obreak function"
Fixes: 8632729060 "bsd-user: Implement freebsd_exec_common, used in implementing execve/fexecve."
Fixes: bf14f13d8b "bsd-user: Implement stat related syscalls"
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
 2023-11-15 11:09:17 +03:00
Warner Losh dfa1d91575 bsd-user: Add stubs for vadvise(), sbrk() and sstk() 
The above system calls are not supported by qemu.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-24-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonandWarner Losh 4e00b7d85d bsd-user: Implement shmat(2) and shmdt(2) 
Use `WITH_MMAP_LOCK_GUARD` instead of mmap_lock() and mmap_unlock(),
to match linux-user implementation, according to the following commits:

69fa2708a2 linux-user: Use WITH_MMAP_LOCK_GUARD in target_{shmat,shmdt}
ceda5688b6 linux-user: Fix shmdt

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Message-Id: <20230925182709.4834-23-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonandWarner Losh f9bbe3cf28 bsd-user: Implement shmctl(2) 
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>
Message-Id: <20230925182709.4834-22-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonandWarner Losh 9d14db15b1 bsd-user: Implement shm_unlink(2) and shmget(2) 
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>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-21-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonWarner LoshKyle Evans
 		4f0be683e3 bsd-user: Implement shm_open(2) 
Co-authored-by: Kyle Evans <kevans@FreeBSD.org>

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-20-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonandWarner Losh a99d740347 bsd-user: Implement do_obreak function 
Match linux-user, by manually applying the following commits, in order:

d28b3c90cf   linux-user: Make sure initial brk(0) is page-aligned
15ad98536a   linux-user: Fix qemu brk() to not zero bytes on current page
dfe49864af   linux-user: Prohibit brk() to to shrink below initial heap address
eac78a4b0b   linux-user: Fix signed math overflow in brk() syscall
c6cc059eca   linux-user: Do not call get_errno() in do_brk()
e69e032d1a   linux-user: Use MAP_FIXED_NOREPLACE for do_brk()
cb9d5d1fda   linux-user: Do nothing if too small brk is specified
2aea137a42   linux-user: Do not align brk with host page size

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>
Message-Id: <20230925182709.4834-19-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonandWarner Losh 83b045ad4e bsd-user: Implement mincore(2) 
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>
Message-Id: <20230925182709.4834-18-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Karim TahaandWarner Losh 0c1ced42c8 bsd-user: Implment madvise(2) to match the linux-user implementation. 
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-17-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonandWarner Losh 0a49ef02a6 bsd-user: Implement mlock(2), munlock(2), mlockall(2), munlockall(2), minherit(2) 
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>
Message-Id: <20230925182709.4834-16-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonWarner LoshKyle Evans
 		f28a1e4bab bsd-user: Implement msync(2) 
Co-authored-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
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>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-15-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonandWarner Losh ecbe22494d bsd-user: Implement mprotect(2) 
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: <20230925182709.4834-14-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonandWarner Losh 87dcb4ad48 bsd-user: Implement mmap(2) and munmap(2) 
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>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-13-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonandWarner Losh 6765e988e1 bsd-user: Introduce bsd-mem.h to the source tree 
Preserve the copyright notice and help with the 'Author' info for
subsequent changes to the file.

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>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-12-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:07 -06:00
Stacey SonWarner LoshMikaël Urankar
 		c9cdf0a5ec bsd-user: Implement target_set_brk function in bsd-mem.c instead of os-syscall.c 
The definitions and variables names matches the corresponding ones in
linux-user/syscall.c, for making later implementation of do_obreak easier

Co-authored-by: Mikaël Urankar <mikael.urankar@gmail.com>
Signed-off-by: Mikaël Urankar <mikael.urankar@gmail.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-9-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:06 -06:00
Kyle EvansandWarner Losh 182ea728e0 bsd-user: Implement shm_rename(2) system call 
Signed-off-by: Kyle Evans <kevans@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: <20230925182709.4834-7-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:06 -06:00
Karim TahaandWarner Losh 0c3529888a bsd-user: Implement shm_open2(2) system call 
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-6-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:06 -06:00
Stacey SonandWarner Losh 137d963cfb bsd-user: Introduce freebsd/os-misc.h to the source tree 
To preserve the copyright notice and help with the 'Author' info for
subsequent changes to the file.

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: <20230925182709.4834-5-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:06 -06:00
Stacey SonandWarner Losh 6756ae283a bsd-user: Implement pdfork(2) system call. 
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230925182425.3163-29-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:06 -06:00
Stacey SonandWarner Losh 510eecbc86 bsd-user: Implement rfork(2) system call. 
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: <20230925182425.3163-28-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:06 -06:00
Stacey SonandWarner Losh 831a5a7fcb bsd-user: Implement fork(2) and vfork(2) system calls. 
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: <20230925182425.3163-27-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:06 -06:00
Stacey SonandWarner Losh 0571e3f5e2 bsd-user: Implement pdgetpid(2) and the undocumented setugid. 
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: <20230925182425.3163-26-kariem.taha2.7@gmail.com>
 2023-10-03 17:14:06 -06:00