diff options
author | Alex Bennée <alex.bennee@linaro.org> | 2023-03-02 18:58:01 -0800 |
---|---|---|
committer | Alex Bennée <alex.bennee@linaro.org> | 2023-03-07 20:44:09 +0000 |
commit | 131f387d741ee2dfe953f8829e5634e49e6dfb31 (patch) | |
tree | 6dcac51627e3f1ad584594e43c5073f02f36fb40 /gdbstub/softmmu.c | |
parent | 4692a86f1c90a26cad752409fc8d30e591e1f741 (diff) |
gdbstub: split out softmmu/user specifics for syscall handling
Most of the syscall code is config agnostic aside from the size of
target_ulong. In preparation for the next patch move the final bits
of specialisation into the appropriate user and softmmu helpers.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230302190846.2593720-26-alex.bennee@linaro.org>
Message-Id: <20230303025805.625589-26-richard.henderson@linaro.org>
Diffstat (limited to 'gdbstub/softmmu.c')
-rw-r--r-- | gdbstub/softmmu.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gdbstub/softmmu.c b/gdbstub/softmmu.c index d3152fb6e7..22ecd09d04 100644 --- a/gdbstub/softmmu.c +++ b/gdbstub/softmmu.c @@ -103,6 +103,20 @@ static void gdb_chr_event(void *opaque, QEMUChrEvent event) } } +/* + * In softmmu mode we stop the VM and wait to send the syscall packet + * until notification that the CPU has stopped. This must be done + * because if the packet is sent now the reply from the syscall + * request could be received while the CPU is still in the running + * state, which can cause packets to be dropped and state transition + * 'T' packets to be sent while the syscall is still being processed. + */ +void gdb_syscall_handling(const char *syscall_packet) +{ + vm_stop(RUN_STATE_DEBUG); + qemu_cpu_kick(gdbserver_state.c_cpu); +} + static void gdb_vm_state_change(void *opaque, bool running, RunState state) { CPUState *cpu = gdbserver_state.c_cpu; |