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2023-10-31semihosting: fix memleak at semihosting_arg_fallbackMatheus Tavares Bernardino
We duplicate "cmd" as strtok may modify its argument, but we forgot to free it later. Furthermore, add_semihosting_arg doesn't take responsibility for this memory either (it strdup's the argument). Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <03d81c56bfc3d08224e4106efca5949d8894cfa5.1697801632.git.quic_mathbern@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20231029145033.592566-18-alex.bennee@linaro.org>
2023-10-09Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into stagingStefan Hajnoczi
* util/log: re-allow switching away from stderr log file * finish audio configuration rework * cleanup HVF stubs * remove more mentions of softmmu # -----BEGIN PGP SIGNATURE----- # # iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmUi/kIUHHBib256aW5p # QHJlZGhhdC5jb20ACgkQv/vSX3jHroOXWwf/YW16QMzqdAPVHYRf9NcCneRF16El # t3lEod0q0sHhchPbh9e04aKbh+oBNeWu9sFyTl11Fwsi+DGmp/b28ziva75/4rfd # h5N9aX/z2jwPqy93IwPDu3soKXCCgTK+ywtD/5GLQwBGqxs7W2xUEEb7eCnVefHa # zwL3MOUqPICeqOnR1TNw9k3N3veF04D+rmchTwbAjAmx1f8EI+mK9VlGK9V8TUjP # 3HjpZYJluc0a92lR5VONJ7V25QfttsjLysTgpFwVAQPS6Frzatc/hWclfLYgw9vl # 2Irk83FV8gXPRl0XKNcqSDsv6h/yGP6TDFIB8QwRSRGBqIQi5aOlfBJzsQ== # =qbm7 # -----END PGP SIGNATURE----- # gpg: Signature made Sun 08 Oct 2023 15:08:50 EDT # gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83 # gpg: issuer "pbonzini@redhat.com" # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full] # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full] # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (25 commits) audio, qtest: get rid of QEMU_AUDIO_DRV audio: reintroduce default audio backend for VNC audio: do not use first -audiodev as default audio device audio: extend -audio to allow creating a default backend audio: extract audio_define_default audio: disable default backends if -audio/-audiodev is used audio: error hints need a trailing \n cutils: squelch compiler warnings with custom paths configure: change $softmmu to $system system: Rename softmmu/ directory as system/ meson: Rename target_softmmu_arch -> target_system_arch meson: Rename softmmu_mods -> system_mods target/i386: Rename i386_softmmu_kvm_ss -> i386_kvm_ss semihosting: Rename softmmu_FOO_user() -> uaccess_FOO_user() gdbstub: Rename 'softmmu' -> 'system' accel: Rename accel_softmmu* -> accel_system* tcg: Correct invalid mentions of 'softmmu' by 'system-mode' fuzz: Correct invalid mentions of 'softmmu' by 'system' cpu: Correct invalid mentions of 'softmmu' by 'system-mode' travis-ci: Correct invalid mentions of 'softmmu' by 'system' ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-10-07semihosting: Rename softmmu_FOO_user() -> uaccess_FOO_user()Philippe Mathieu-Daudé
Add a check in 'softmmu-uaccess.h' that the header is only include in system emulation, and rename it as 'uaccess.h'. Rename the API methods: - softmmu_[un]lock_user*() -> uaccess_[un]lock_user*() - softmmu_strlen_user() -> uaccess_strlen_user(). Update a pair of comments. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20231004090629.37473-9-philmd@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-10-06semihosting: Clean up global variable shadowingPhilippe Mathieu-Daudé
Fix: semihosting/config.c:134:49: error: declaration shadows a variable in the global scope [-Werror,-Wshadow] int qemu_semihosting_config_options(const char *optarg) ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/getopt.h:77:14: note: previous declaration is here extern char *optarg; /* getopt(3) external variables */ ^ Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20231004120019.93101-10-philmd@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2023-08-31accel/tcg: spelling fixesMichael Tokarev
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Message-ID: <20230823065335.1919380-18-mjt@tls.msk.ru> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20230823065335.1919380-19-mjt@tls.msk.ru> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2022-09-13semihosting: Allow optional use of semihosting from userspacePeter Maydell
Currently our semihosting implementations generally prohibit use of semihosting calls in system emulation from the guest userspace. This is a very long standing behaviour justified originally "to provide some semblance of security" (since code with access to the semihosting ABI can do things like read and write arbitrary files on the host system). However, it is sometimes useful to be able to run trusted guest code which performs semihosting calls from guest userspace, notably for test code. Add a command line suboption to the existing semihosting-config option group so that you can explicitly opt in to semihosting from guest userspace with -semihosting-config userspace=on (There is no equivalent option for the user-mode emulator, because there by definition all code runs in userspace and has access to semihosting already.) This commit adds the infrastructure for the command line option and adds a bool 'is_user' parameter to the function semihosting_userspace_enabled() that target code can use to check whether it should be permitting the semihosting call for userspace. It mechanically makes all the callsites pass 'false', so they continue checking "is semihosting enabled in general". Subsequent commits will make each target that implements semihosting honour the userspace=on option by passing the correct value and removing whatever "don't do this for userspace" checking they were doing by hand. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220822141230.3658237-2-peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-28semihosting: Cleanup chardev initRichard Henderson
Rename qemu_semihosting_connect_chardevs to qemu_semihosting_chardev_init; pass the result directly to qemu_semihosting_console_init. Store the chardev in SemihostingConsole instead of SemihostingConfig, which lets us drop semihosting_get_chardev. Reviewed-by: Luc Michel <lmichel@kalray.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-10semihosting/config: Merge --semihosting-config option groupsPeter Maydell
Currently we mishandle the --semihosting-config option if the user specifies it on the command line more than once. For example with: --semihosting-config target=gdb --semihosting-config arg=foo,arg=bar the function qemu_semihosting_config_options() is called twice, once for each argument. But that function expects to be called only once, and it always unconditionally sets the semihosting.enabled, semihost_chardev and semihosting.target variables. This means that if any of those options were set anywhere except the last --semihosting-config option on the command line, those settings are ignored. In the example above, 'target=gdb' in the first option is overridden by an implied default 'target=auto' in the second. The QemuOptsList machinery has a flag for handling this kind of "option group is setting global state": by setting .merge_lists = true; we make the machinery merge all the --semihosting-config arguments the user passes into a single set of options and call our qemu_semihosting_config_options() just once. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Luc Michel <luc@lmichel.fr> Message-id: 20220526190053.521505-3-peter.maydell@linaro.org
2022-03-23semihosting: clean up handling of expanded argvAlex Bennée
Another cleanup patch tripped over the fact we weren't being careful in our casting. Fix the casts, allow for a non-const and switch from g_realloc to g_renew. The whole semihosting argument handling could do with some tests though. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220315121251.2280317-8-alex.bennee@linaro.org>
2021-05-02Do not include sysemu/sysemu.h if it's not really necessaryThomas Huth
Stop including sysemu/sysemu.h in files that don't need it. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <20210416171314.2074665-2-thuth@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-03-10semihosting: Move hw/semihosting/ -> semihosting/Philippe Mathieu-Daudé
With the exception of hw/core/, the hw/ directory only contains device models used in system emulation. Semihosting is also used by user emulation. As a generic feature, move it out of hw/ directory. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210226131356.3964782-3-f4bug@amsat.org> Message-Id: <20210305135451.15427-3-alex.bennee@linaro.org>