cpu->gdb_regs may be NULL if no coprocessor is registered.
Fixes: 73c392c26b ("gdbstub: Replace gdb_regs with an array")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
gdbstub/gdbstub.c | 34 ++++++++++++++++++++--------------
1 file changed, 20 insertions(+), 14 deletions(-)
diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c
index 1e96a71c0c..29540a0284 100644
--- a/gdbstub/gdbstub.c
+++ b/gdbstub/gdbstub.c
@@ -385,12 +385,14 @@ static const char *get_feature_xml(const char *p, const char **newp,
xml,
g_markup_printf_escaped("<xi:include href=\"%s\"/>",
cc->gdb_core_xml_file));
- for (guint i = 0; i < cpu->gdb_regs->len; i++) {
- r = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
- g_ptr_array_add(
- xml,
- g_markup_printf_escaped("<xi:include href=\"%s\"/>",
- r->xml));
+ if (cpu->gdb_regs) {
+ for (guint i = 0; i < cpu->gdb_regs->len; i++) {
+ r = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
+ g_ptr_array_add(
+ xml,
+ g_markup_printf_escaped("<xi:include href=\"%s\"/>",
+ r->xml));
+ }
}
g_ptr_array_add(xml, g_strdup("</target>"));
g_ptr_array_add(xml, NULL);
@@ -430,10 +432,12 @@ static int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg)
return cc->gdb_read_register(cpu, buf, reg);
}
- for (guint i = 0; i < cpu->gdb_regs->len; i++) {
- r = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
- if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
- return r->get_reg(env, buf, reg - r->base_reg);
+ if (cpu->gdb_regs) {
+ for (guint i = 0; i < cpu->gdb_regs->len; i++) {
+ r = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
+ if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
+ return r->get_reg(env, buf, reg - r->base_reg);
+ }
}
}
return 0;
@@ -449,10 +453,12 @@ static int gdb_write_register(CPUState *cpu, uint8_t *mem_buf, int reg)
return cc->gdb_write_register(cpu, mem_buf, reg);
}
- for (guint i = 0; i < cpu->gdb_regs->len; i++) {
- r = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
- if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
- return r->set_reg(env, mem_buf, reg - r->base_reg);
+ if (cpu->gdb_regs) {
+ for (guint i = 0; i < cpu->gdb_regs->len; i++) {
+ r = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
+ if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
+ return r->set_reg(env, mem_buf, reg - r->base_reg);
+ }
}
}
return 0;
--
2.42.0