Experimental fork of QEMU with video encoding patches https://git.openslx.org/bwlp/qemu.git/atom/linux-user/host/s390x?h=spice_video_codecs 2022-01-12T13:08:29+00:00 2022-01-12T13:08:29+00:00 Paolo Bonzini 2021-12-21T15:20:32+00:00 urn:sha1:05a248715cef192336a594afed812871a52efc1f Avoid polluting the compilation of common-user/ with local include files; making an include file available to common-user/ should be a deliberate decision in order to keep a clear interface that can be used by both bsd-user/ and linux-user/. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> 2021-12-20T18:12:24+00:00 Richard Henderson 2021-11-17T15:14:00+00:00 urn:sha1:bbf15aaf7c7506c88062288b3ae122b882f65e69 Move linux-user safe-syscall.S and safe-syscall-error.c to common-user so that bsd-user can also use it. Also move safe-syscall.h to include/user/. Since there is nothing here that is related to the guest, as opposed to the host, build it once. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-12-20T04:47:33+00:00 Richard Henderson 2021-11-22T18:47:33+00:00 urn:sha1:af254a279255bd753c2b0b3a70fc39f09c724aab This value is fully internal to qemu, and so is not a TARGET define. We use this as an extra marker for both host and target errno. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-12-20T04:47:33+00:00 Richard Henderson 2021-11-15T19:08:23+00:00 urn:sha1:0a7e01904d407baa73c1baddbdfc9ccf2ace8356 All supported hosts now define HAVE_SAFE_SYSCALL, so remove the ifdefs. This leaves hostdep.h empty, so remove it. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-12-20T04:47:33+00:00 Richard Henderson 2021-11-15T13:08:52+00:00 urn:sha1:a3310c0397e21df8f47cde3e55736104b9584d2d The current api from safe_syscall_base() is to return -errno, which is the interface provided by *some* linux kernel abis. The wrapper macro, safe_syscall(), detects error, stores into errno, and returns -1, to match the api of the system syscall(). For those kernel abis that do not return -errno natively, this leads to double syscall error detection. E.g. Linux ppc64, which sets the SO flag for error. Simplify the usage from C by moving the error detection into assembly, and usage from assembly by providing a C helper with which to set errno. Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-12-20T04:47:33+00:00 Richard Henderson 2021-11-23T10:44:55+00:00 urn:sha1:b9d2af3c62c22870c02410d5c9c6d097ee0ddf3f Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-11-23T00:47:20+00:00 Warner Losh 2021-11-13T04:56:00+00:00 urn:sha1:07637888687bfecf3c0cc8351c5c24f29a611691 All instances of rewind_if_in_safe_syscall are the same, differing only in how the instruction point is fetched from the ucontext and the size of the registers. Use host_signal_pc and new host_signal_set_pc interfaces to fetch the pointer to the PC and adjust if needed. Delete all the old copies of rewind_if_in_safe_syscall. Acked-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20211113045603.60391-3-imp@bsdimp.com> [rth: include safe-syscall.h, simplify ifdefs] Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-11-02T11:00:46+00:00 Richard Henderson 2021-09-17T17:44:05+00:00 urn:sha1:66ee11d407c07cd5e093fabb48e81232388189d0 Split host_signal_pc and host_signal_write out of user-exec.c. Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-10-30T16:52:04+00:00 Richard Henderson 2021-09-16T21:44:17+00:00 urn:sha1:e6037d04c58284285726721d0d4741e1386594e9 Add stub host-signal.h for all linux-user hosts. Add new code replacing cpu_signal_handler. Full migration will happen one host at a time. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2017-07-20T09:10:28+00:00 Khem Raj 2017-06-28T20:44:52+00:00 urn:sha1:04b33e21866412689f18b7ad6daf0a54d8f959a7 glibc used to have: typedef struct ucontext { ... } ucontext_t; glibc now has: typedef struct ucontext_t { ... } ucontext_t; (See https://sourceware.org/bugzilla/show_bug.cgi?id=21457 for detail and rationale for the glibc change) However, QEMU used "struct ucontext" in declarations. This is a private name and compatibility cannot be guaranteed. Switch to only using the standardized type name. Signed-off-by: Khem Raj <raj.khem@gmail.com> Message-id: 20170628204452.41230-1-raj.khem@gmail.com Cc: Kamil Rytarowski <kamil@netbsd.org> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Laurent Vivier <laurent@vivier.eu> Cc: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [PMM: Rewrote commit message, based mostly on the one from Nathaniel McCallum] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>