From a010bdbe719c52c8959ca058000d7ac7d559abb8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Alex=20Benn=C3=A9e?= Date: Mon, 16 Mar 2020 17:21:41 +0000 Subject: gdbstub: extend GByteArray to read register helpers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead of passing a pointer to memory now just extend the GByteArray to all the read register helpers. They can then safely append their data through the normal way. We don't bother with this abstraction for write registers as we have already ensured the buffer being copied from is the correct size. Signed-off-by: Alex Bennée Reviewed-by: Richard Henderson Acked-by: David Gibson Reviewed-by: Damien Hedde Message-Id: <20200316172155.971-15-alex.bennee@linaro.org> --- gdbstub.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'gdbstub.c') diff --git a/gdbstub.c b/gdbstub.c index db537a7..0bcfc47 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -319,8 +319,8 @@ static int gdb_signal_to_target (int sig) typedef struct GDBRegisterState { int base_reg; int num_regs; - gdb_reg_cb get_reg; - gdb_reg_cb set_reg; + gdb_get_reg_cb get_reg; + gdb_set_reg_cb set_reg; const char *xml; struct GDBRegisterState *next; } GDBRegisterState; @@ -905,19 +905,19 @@ static const char *get_feature_xml(const char *p, const char **newp, return name ? xml_builtin[i][1] : NULL; } -static int gdb_read_register(CPUState *cpu, uint8_t *mem_buf, int reg) +static int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg) { CPUClass *cc = CPU_GET_CLASS(cpu); CPUArchState *env = cpu->env_ptr; GDBRegisterState *r; if (reg < cc->gdb_num_core_regs) { - return cc->gdb_read_register(cpu, mem_buf, reg); + return cc->gdb_read_register(cpu, buf, reg); } for (r = cpu->gdb_regs; r; r = r->next) { if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) { - return r->get_reg(env, mem_buf, reg - r->base_reg); + return r->get_reg(env, buf, reg - r->base_reg); } } return 0; @@ -948,7 +948,7 @@ static int gdb_write_register(CPUState *cpu, uint8_t *mem_buf, int reg) */ void gdb_register_coprocessor(CPUState *cpu, - gdb_reg_cb get_reg, gdb_reg_cb set_reg, + gdb_get_reg_cb get_reg, gdb_set_reg_cb set_reg, int num_regs, const char *xml, int g_pos) { GDBRegisterState *s; @@ -1739,7 +1739,7 @@ static void handle_get_reg(GdbCmdContext *gdb_ctx, void *user_ctx) } reg_size = gdb_read_register(gdbserver_state.g_cpu, - gdbserver_state.mem_buf->data, + gdbserver_state.mem_buf, gdb_ctx->params[0].val_ull); if (!reg_size) { put_packet("E14"); @@ -1832,14 +1832,14 @@ static void handle_read_all_regs(GdbCmdContext *gdb_ctx, void *user_ctx) target_ulong addr, 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++) { len += gdb_read_register(gdbserver_state.g_cpu, - gdbserver_state.mem_buf->data + len, + gdbserver_state.mem_buf, addr); } - /* FIXME: This is after the fact sizing */ - g_byte_array_set_size(gdbserver_state.mem_buf, len); + g_assert(len == gdbserver_state.mem_buf->len); memtohex(gdbserver_state.str_buf, gdbserver_state.mem_buf->data, len); put_strbuf(); -- cgit v1.1