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2023-03-07gdbstub: move syscall handling to new fileAlex Bennée1-0/+2
Our GDB syscall support is the last chunk of code that needs target specific support so move it to a new file. We take the opportunity to move the syscall state into its own singleton instance and add in a few helpers for the main gdbstub to interact with the module. I also moved the gdb_exit() declaration into syscalls.h as it feels pretty related and most of the callers of it treat it as such. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230302190846.2593720-22-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-22-richard.henderson@linaro.org>
2023-03-01bsd-user: implement sysctlbyname(2)Kyle Evans2-0/+71
do_freebsd_sysctlbyname needs to translate the 'name' back down to a OID so we can intercept the special ones. Do that and call the common wrapper do_freebsd_sysctl_oid. Signed-off-by: Kyle Evans <kevans@FreeBSD.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01bsd-user: do_freebsd_sysctl helper for sysctl(2)Kyle Evans2-1/+59
Implement the wrapper function for sysctl(2). This puts the oid arguments into a standard form and calls the common do_freebsd_sysctl_oid. Signed-off-by: Kyle Evans <kevans@FreeBSD.org> Co-Authored-by: Juergen Lock <nox@jelal.kn-bremen.de> Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Co-Authored-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Stacey Son <sson@FreeBSD.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01bsd-user: Start translation of arch-specific sysctlsJuergen Lock1-2/+143
Intercept some syscalls that we need to translate (like the archiecture we're running on) and translate them. These are only the simplest ones so far. Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Co-Authored-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Stacey Son <sson@FreeBSD.org> Co-Authored-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01bsd-user: common routine do_freebsd_sysctl_oid for all sysctl variantsJuergen Lock1-4/+86
do_freebsd_sysctl_oid filters out some of the binary and special sysctls where host != target. None of the sysctls that have to be translated from host to target are handled here. Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Co-Authored-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Stacey Son <sson@FreeBSD.org> Co-Authored-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01bsd-user: sysctl helper funtions: sysctl_name2oid and sysctl_oidfmtJuergen Lock1-0/+18
Helper functions for sysctl implementations. sysctl_name2oid and sysctl_oidfmt convert oids between host and targets Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01bsd-user: Helper routines oidfmtStacey Son1-4/+127
oidfmt uses undocumented system call to get the type of the sysctl. Co-Authored-by: Sean Bruno <sbruno@FreeBSD.org> Signed-off-by: Sean Bruno <sbruno@FreeBSD.org> Co-Authored-by: Juergen Lock <nox@jelal.kn-bremen.de> Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Co-Authored-by: Raphael Kubo da Costa <rakuco@FreeBSD.org> Signed-off-by: Raphael Kubo da Costa <rakuco@FreeBSD.org> Signed-off-by: Stacey Son <sson@FreeBSD.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Acked-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01bsd-user: various helper routines for sysctlWarner Losh1-0/+86
cap_memory - Caps the memory to just below MAXINT scale_to_guest_pages - Account for difference in host / guest page size h2g_long_sat - converts a int64_t to a int32_t, saturating at max / min values h2g_ulong_sat - converts a uint64_t to a uint32_t, saturating at max value Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01bsd-user: Add sysarch syscallStacey Son1-0/+7
Connect up the sysarch system call. Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Co-authored-by: Juergen Lock <nox@jelal.kn-bremen.de> Signed-off-by: Stacey Son <sson@FreeBSD.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01bsd-user: Don't truncate the return value from freebsd_syscallDoug Rabson1-1/+1
System call return values on FreeBSD are in a register (which is spelled abi_long in qemu). This was being assigned into an int variable which causes problems for 64bit targets. Resolves: https://github.com/qemu-bsd-user/qemu-bsd-user/issues/40 Signed-off-by: Doug Rabson <dfr@rabson.org> Reviewed-by: Warner Losh <imp@bsdimp.com> [ Edited commit message for upstreaming into qemu-project ] Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-08bsd-user: Clean up includesMarkus Armbruster1-0/+1
This commit was created with scripts/clean-includes. All .c should include qemu/osdep.h first. The script performs three related cleanups: * Ensure .c files include qemu/osdep.h first. * Including it in a .h is redundant, since the .c already includes it. Drop such inclusions. * Likewise, including headers qemu/osdep.h includes is redundant. Drop these, too. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20230202133830.2152150-6-armbru@redhat.com>
2022-07-02bsd-user: Implement undeleteWarner Losh1-0/+4
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-02bsd-user: Implement pathconf, lpathconf and fpathconfWarner Losh1-0/+12
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-02bsd-user: Implement mkfifo and mkfifoatWarner Losh1-0/+8
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-02bsd-user: Implement chroot and flockWarner Losh1-0/+8
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-02bsd-user: Implement chflags, lchflags and fchflagsWarner Losh1-0/+12
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-02bsd-user: Implement chown, fchown, lchown and fchownatWarner Losh1-0/+16
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-02bsd-user: Implement freebsd11_mknod, freebsd11_mknodat and mknodatWarner Losh1-0/+13
These implement both the old-pre INO64 mknod variations, as well as the now current INO64 variant. Make direct syscall calls for these older syscalls to avloid too many dependencies. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Michal Meloun <mmel@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-02bsd-user: implement chmod, fchmod, lchmod and fchmodatWarner Losh1-0/+16
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-02bsd-user: Implement symlink, symlinkat, readlink and readlinkatWarner Losh1-0/+16
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-02bsd-user: Implement mount, umount and nmountWarner Losh1-0/+13
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-14bsd-user: Implement acct and syncWarner Losh1-0/+8
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-14bsd-user: Implement trunctate and ftruncateWarner Losh1-0/+8
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-14bsd-user: Implement dup and dup2Warner Losh1-0/+8
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-14bsd-user: Implement rmdir and undocumented __getcwdWarner Losh1-0/+8
Implemenet rmdir and __getcwd. __getcwd is the undocumented back end to getcwd(3). Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-14bsd-user: Implement mkdir and mkdiratWarner Losh1-0/+8
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-13bsd-user: Implement link, linkat, unlink and unlinkatWarner Losh1-0/+16
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-13bsd-user: Implement rename and renameatWarner Losh1-0/+8
Plus the helper LOCK_PATH2 and UNLOCK_PATH2 macros. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-13bsd-user: Implement chdir and fchdirWarner Losh1-0/+8
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-13bsd-user: Implement revoke, access, eaccess and faccessatWarner Losh1-0/+16
Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-13bsd-user: Implement fdatasync, fsync and close_fromWarner Losh1-0/+12
Implement fdatasync(2), fsync(2) and close_from(2). Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-13bsd-user: Implement open, openat and closeWarner Losh1-0/+16
Add the open, openat and close system calls. We need to lock paths, so implmenent that as well. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Jung-uk Kim <jkim@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>
2022-06-10bsd-user/freebsd/os-syscall.c: Implement exitWarner Losh1-0/+7
Implement the exit system call. Bring in bsd-proc.h to contain all the process system call implementation and helper routines. 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>
2022-06-10bsd-user/bsd-file.h: Meat of the write system callsWarner Losh1-0/+22
Implement write, writev, pwrite and pwritev and connect them to the system call dispatch routine. 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>
2022-06-10bsd-user/bsd-file.h: Add implementations for read, pread, readv and preadvWarner Losh1-0/+28
Implement do_bsd_{read,pread,readv,preadv}. Connect them to the system call table. 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>
2022-06-10bsd-user/freebsd/os-syscall.c: Tracing and error boilerplateWarner Losh1-4/+40
Add in the tracing and this system call not implemented boilerplate. Do this by moving the guts of do_freebsd_syscall to freebsd_syscall. Put the tracing in the wrapper function. Since freebsd_syscall is a singleton static function, it will almost certainly be inlined. Fix comments that referred to do_syscall since that was renamed some tie ago. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-10bsd-user/freebsd/os-syscall.c: unlock_iovecWarner Losh1-0/+14
Releases the references to the iovec created by lock_iovec. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-10bsd-user/freebsd/os-syscall.c: lock_iovecWarner Losh1-0/+102
lock_iovec will lock an I/O vec and the memory to which it refers and create a iovec in the host space that refers to it, with full error unwinding. Add helper_iovec_unlock to unlock the partially locked iovec in case there's an error. The code will be used in iovec_unlock when that is committed. Note: memory handling likely could be rewritten to use q_autofree. That will be explored in the future since what we have now works well enough. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-05-11Clean up ill-advised or unusual header guardsMarkus Armbruster8-24/+27
Leading underscores are ill-advised because such identifiers are reserved. Trailing underscores are merely ugly. Strip both. Our header guards commonly end in _H. Normalize the exceptions. Macros should be ALL_CAPS. Normalize the exception. Done with scripts/clean-header-guards.pl. include/hw/xen/interface/ and tools/virtiofsd/ left alone, because these were imported from Xen and libfuse respectively. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220506134911.2856099-3-armbru@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-04-06Remove qemu-common.h include from most unitsMarc-André Lureau1-1/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-02-26bsd-user/bsd-file.h: Implementation details for the filesystem callsWarner Losh1-0/+2
An include file that pulls in all the definitions needed for the file related system calls. This also includes the host definitions to implement the system calls and some helper routines to lock/unlock different aspects of the system call arguments. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-26bsd-user/freebsd/os-syscall.c: Add get_errno and host_to_target_errnoWarner Losh1-1/+22
Add the helper functions get_errno and host_to_target_errno. get_errno returns either the system call results, or the -errno when system call indicates failure by returning -1. Host_to_target_errno returns errno (since on FreeBSD they are the same on all architectures) along with a comment about why it's the identity. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Kyle Evans <kevans@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-26bsd-user: Move system call building to os-syscall.cWarner Losh1-0/+1
Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-26bsd-user/freebsd/os-syscall.c: Move syscall processing hereWarner Losh1-0/+69
While there is some commonality between *BSD syscall processing, there's a number of differences and the system call numbers and ABIs have been independent since the late 90s. Move FreeBSD's proessing here and delete it. The upstream implementation is somewhat different than the current implementation. It will be much easier to upstream these from scratch, justifying the final result, rather than working out the diffs and justifying the changes. Also tweak a comment to qemu standard form. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Kyle Evans <kevans@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-01-30bsd-user/freebsd/target_os_ucontext.h: Prefer env as arg name for ↵Warner Losh1-3/+3
CPUArchState args Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-01-28bsd-user: Create setup_sigframe_arch to setup sigframe contextWarner Losh1-0/+3
Define setup_sigframe_arch whose job it is to setup the mcontext for the sigframe. Implement for x86 to just call mcontext. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-01-28bsd-user: Complete FreeBSD siginfoWarner Losh1-1/+14
Fill in the missing FreeBSD siginfo fields, and add some comments. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-01-07bsd-user/freebsd/target_os_ucontext.h: Require TARGET_*CONTEXT_SIZEWarner Losh1-2/+0
Now that all architecutres define TARGET_[MU]CONTEXT_SIZE, enforce requiring them and always check the sizeof target_{u,m}context_t sizes. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-01-07bsd-user/target_os_signal.h: Move signal prototypes to target_os_ucontext.hWarner Losh1-0/+11
Switch to the CPUArchState typedef and move target-provided prototypes to target_os_ucontext.h. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-01-07bsd-user/freebsd: Create common target_os_ucontext.h fileWarner Losh2-3/+35
FreeBSD has a MI ucontext structure that contains the MD mcontext machine state and other things that are machine independent. Create an include file for all the ucontext stuff. It needs to be included in the arch specific files after target_mcontext is defined. This is largely copied from sys/_ucontext.h with the comments about layout removed because we don't support ancient FreeBSD binaries. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
generated by cgit v1.1 at 2025-02-15 03:29:48 +0000