gdbstub: extend GByteArray to read register helpers

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 <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>

Message-Id: <20200316172155.971-15-alex.bennee@linaro.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/target/m68k/helper.c b/target/m68k/helper.c
index c23b70f854..014657c637 100644
--- a/target/m68k/helper.c
+++ b/target/m68k/helper.c
@@ -68,7 +68,7 @@ void m68k_cpu_list(void)
     g_slist_free(list);
 }
 
-static int cf_fpu_gdb_get_reg(CPUM68KState *env, uint8_t *mem_buf, int n)
+static int cf_fpu_gdb_get_reg(CPUM68KState *env, GByteArray *mem_buf, int n)
 {
     if (n < 8) {
         float_status s;
@@ -105,7 +105,7 @@ static int cf_fpu_gdb_set_reg(CPUM68KState *env, uint8_t *mem_buf, int n)
     return 0;
 }
 
-static int m68k_fpu_gdb_get_reg(CPUM68KState *env, uint8_t *mem_buf, int n)
+static int m68k_fpu_gdb_get_reg(CPUM68KState *env, GByteArray *mem_buf, int n)
 {
     if (n < 8) {
         int len = gdb_get_reg16(mem_buf, env->fregs[n].l.upper);