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gdbstub: don't use target_ulong while handling registers 

This is a hangover from the original code. addr is misleading as it is
only really a register id. While len will never exceed
MAX_PACKET_LENGTH I've used size_t as that is what strlen returns.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Message-Id: <20230302190846.2593720-20-alex.bennee@linaro.org>
Message-Id: <20230303025805.625589-20-richard.henderson@linaro.org>
This commit is contained in:
Alex Bennée 2023-03-02 18:57:55 -08:00
parent b428ad1234
commit 379b42e8b7
1 changed files with 10 additions and 7 deletions
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17
gdbstub/gdbstub.c
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@ -1193,7 +1193,8 @@ static void handle_read_mem(GArray *params, void *user_ctx)
static void handle_write_all_regs(GArray *params, void *user_ctx)
{
target_ulong addr, len;
int reg_id;
size_t len;
uint8_t *registers;
int reg_size;
@ -1205,9 +1206,10 @@ static void handle_write_all_regs(GArray *params, void *user_ctx)
len = strlen(get_param(params, 0)->data) / 2;
gdb_hextomem(gdbserver_state.mem_buf, get_param(params, 0)->data, len);
registers = gdbserver_state.mem_buf->data;
for (addr = 0; addr < gdbserver_state.g_cpu->gdb_num_g_regs && len > 0;
addr++) {
reg_size = gdb_write_register(gdbserver_state.g_cpu, registers, addr);
for (reg_id = 0;
reg_id < gdbserver_state.g_cpu->gdb_num_g_regs && len > 0;
reg_id++) {
reg_size = gdb_write_register(gdbserver_state.g_cpu, registers, reg_id);
len -= reg_size;
registers += reg_size;
}
@ -1216,15 +1218,16 @@ static void handle_write_all_regs(GArray *params, void *user_ctx)
static void handle_read_all_regs(GArray *params, void *user_ctx)
{
target_ulong addr, len;
int reg_id;
size_t len;
cpu_synchronize_state(gdbserver_state.g_cpu);
g_byte_array_set_size(gdbserver_state.mem_buf, 0);
len = 0;
for (addr = 0; addr < gdbserver_state.g_cpu->gdb_num_g_regs; addr++) {
for (reg_id = 0; reg_id < gdbserver_state.g_cpu->gdb_num_g_regs; reg_id++) {
len += gdb_read_register(gdbserver_state.g_cpu,
gdbserver_state.mem_buf,
addr);
reg_id);
}
g_assert(len == gdbserver_state.mem_buf->len);