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server: gdb_server: fix memory map generation on a 32-bit BE host 

Due to lack of printf format check wrong specifier was used and it
actually broke operation on a 32-bit BE host.

So fix this and add the necessary function attributes so that the bugs
like that can be uncovered automaticaly.

Reported and pinpointed by Karl Palsson on IRC.

Change-Id: I254ec28fcd9bb30594d607f74a6dba5456c2c7a1
Tested-by: Karl Palsson <karlp@tweak.net.au>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/5342
Tested-by: jenkins
Reviewed-by: Karl Palsson <karlp@tweak.net.au>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Paul Fertser 2019-11-06 19:04:57 +03:00
parent 678fb4f60b
commit 1e427fd580
2 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/helper/log.h
View File

@ -95,7 +95,8 @@ int log_add_callback(log_callback_fn fn, void *priv);
int log_remove_callback(log_callback_fn fn, void *priv);
char *alloc_vprintf(const char *fmt, va_list ap);
char *alloc_printf(const char *fmt, ...);
char *alloc_printf(const char *fmt, ...)
__attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 1, 2)));
extern int debug_level;

10
src/server/gdb_server.c
View File

@ -1729,8 +1729,8 @@ static int gdb_breakpoint_watchpoint_packet(struct connection *connection,
/* print out a string and allocate more space as needed,
* mainly used for XML at this point
*/
static void xml_printf(int *retval, char **xml, int *pos, int *size,
const char *fmt, ...)
static __attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 5, 6))) void xml_printf(int *retval,
char **xml, int *pos, int *size, const char *fmt, ...)
{
if (*retval != ERROR_OK)
return;
@ -1871,7 +1871,7 @@ static int gdb_memory_map(struct connection *connection,
if (ram_start < p->base)
xml_printf(&retval, &xml, &pos, &size,
"<memory type=\"ram\" start=\"" TARGET_ADDR_FMT "\" "
"length=\"0x%x\"/>\n",
"length=\"" TARGET_ADDR_FMT "\"/>\n",
ram_start, p->base - ram_start);
/* Report adjacent groups of same-size sectors. So for
@ -2469,7 +2469,7 @@ static int gdb_generate_thread_list(struct target *target, char **thread_list_ou
xml_printf(&retval, &thread_list, &pos, &size,
", ");
xml_printf(&retval, &thread_list, &pos, &size,
thread_detail->extra_info_str);
"%s", thread_detail->extra_info_str);
}
xml_printf(&retval, &thread_list, &pos, &size,
@ -3555,7 +3555,7 @@ static int gdb_target_add_one(struct target *target)
if (parse_long(gdb_port_next, &portnumber) == ERROR_OK) {
free(gdb_port_next);
if (portnumber) {
gdb_port_next = alloc_printf("%d", portnumber+1);
gdb_port_next = alloc_printf("%ld", portnumber+1);
} else {
/* Don't increment if gdb_port is 0, since we're just
* trying to allocate an unused port. */