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gdbstub: expose api to find registers

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Expose an internal API to QEMU to return all the registers for a vCPU.
The list containing the details required to called gdb_read_register().

Based-on:  <20231025093128.33116-15-akihiko.odaki@daynix.com>
Cc: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-22-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2024-02-27 14:43:27 +00:00
parent 33a277fec0
commit c3d0b46645
2 changed files with 54 additions and 1 deletions
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27
gdbstub/gdbstub.c
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@ -490,7 +490,32 @@ const GDBFeature *gdb_find_static_feature(const char *xmlname)
g_assert_not_reached();
}
static int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg)
GArray *gdb_get_register_list(CPUState *cpu)
{
GArray *results = g_array_new(true, true, sizeof(GDBRegDesc));
/* registers are only available once the CPU is initialised */
if (!cpu->gdb_regs) {
return results;
}
for (int f = 0; f < cpu->gdb_regs->len; f++) {
GDBRegisterState *r = &g_array_index(cpu->gdb_regs, GDBRegisterState, f);
for (int i = 0; i < r->feature->num_regs; i++) {
const char *name = r->feature->regs[i];
GDBRegDesc desc = {
r->base_reg + i,
name,
r->feature->name
};
g_array_append_val(results, desc);
}
}
return results;
}
int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
GDBRegisterState *r;