svf: try to reallocate buffers if they're not enough

[openocd] / src / target / smp.c

diff --git a/src/target/smp.c b/src/target/smp.c
index 39a95337d3bb1fa86d960f0d7755be3bf588623d..e688304a0e25ad2591c8f690b347560075dbb44d 100644 (file)
--- a/src/target/smp.c
+++ b/src/target/smp.c
@@ -56,21 +56,19 @@
 
 /* packet j :smp status request */
 int gdb_read_smp_packet(struct connection *connection,
-               char *packet, int packet_size)
+               char const *packet, int packet_size)
 {
        struct target *target = get_target_from_connection(connection);
-       uint32_t len = sizeof(int32_t);
-       uint8_t *buffer;
-       char *hex_buffer;
        int retval = ERROR_OK;
        if (target->smp) {
                if (strncmp(packet, "jc", 2) == 0) {
-                       hex_buffer = malloc(len * 2 + 1);
-                       buffer = (uint8_t *)&target->gdb_service->core[0];
-                       int pkt_len = hexify(hex_buffer, (char *)buffer, len, len * 2 + 1);
+                       const uint32_t len = sizeof(target->gdb_service->core[0]);
+                       char hex_buffer[len * 2 + 1];
+                       char buffer[len];
+                       buf_set_u32(buffer, 0, len * 8, target->gdb_service->core[0]);
+                       int pkt_len = hexify(hex_buffer, buffer, sizeof(buffer), sizeof(hex_buffer));
 
                        retval = gdb_put_packet(connection, hex_buffer, pkt_len);
-                       free(hex_buffer);
                }
        } else
                retval = gdb_put_packet(connection, "E01", 3);
@@ -79,7 +77,7 @@ int gdb_read_smp_packet(struct connection *connection,
 
 /* J :  smp set request */
 int gdb_write_smp_packet(struct connection *connection,
-               char *packet, int packet_size)
+               char const *packet, int packet_size)
 {
        struct target *target = get_target_from_connection(connection);
        char *separator;