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gdbstub: move syscall handling to new file

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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>
This commit is contained in:
Alex Bennée 2023-03-02 18:57:57 -08:00
parent 4ea5fe997d
commit c566080cd3
17 changed files with 387 additions and 288 deletions
Download patch file Download diff file Expand all files Collapse all files

7
gdbstub/softmmu.c
View file

@ -15,6 +15,7 @@
#include "qemu/error-report.h"
#include "qemu/cutils.h"
#include "exec/gdbstub.h"
#include "gdbstub/syscalls.h"
#include "exec/hwaddr.h"
#include "exec/tb-flush.h"
#include "sysemu/cpus.h"
@ -113,9 +114,9 @@ static void gdb_vm_state_change(void *opaque, bool running, RunState state)
if (running || gdbserver_state.state == RS_INACTIVE) {
return;
}
/* Is there a GDB syscall waiting to be sent? */
if (gdbserver_state.current_syscall_cb) {
gdb_put_packet(gdbserver_state.syscall_buf);
if (gdb_handled_syscall()) {
return;
}
@ -384,7 +385,7 @@ int gdbserver_start(const char *device)
}
gdbserver_state.state = chr ? RS_IDLE : RS_INACTIVE;
gdbserver_system_state.mon_chr = mon_chr;
gdbserver_state.current_syscall_cb = NULL;
gdb_syscall_reset();
return 0;
}