zcy
/
tinyriscv-openocd
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

regions outside flash are now read/write nocache by default. GDB 6.8 would mark non-flash areas as inacessible by default. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@607 b42882b7-edfa-0310-969c-e2dbd0fdcd60
__archive__
oharboe 2008-04-23 08:07:39 +00:00
parent 26470de0e0
commit 3ce7afc0da
1 changed files with 59 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
src/server/gdb_server.c
View File

@ -1419,6 +1419,24 @@ int gdb_calc_blocksize(flash_bank_t *bank)
return block_size;
}
static int compare_bank (const void * a, const void * b)
{
flash_bank_t *b1, *b2;
b1=*((flash_bank_t **)a);
b2=*((flash_bank_t **)b);
if (b1->base==b2->base)
{
return 0;
} else if (b1->base>b2->base)
{
return 1;
} else
{
return -1;
}
}
int gdb_query_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
{
command_context_t *cmd_ctx = connection->cmd_ctx;
@ -1539,22 +1557,59 @@ int gdb_query_packet(connection_t *connection, target_t *target, char *packet, i
length = strtoul(separator + 1, &separator, 16);
xml_printf(&retval, &xml, &pos, &size, "<memory-map>\n");
/*
sort banks in ascending order, we need to make non-flash memory be ram(or rather
read/write) by default for GDB.
GDB does not have a concept of non-cacheable read/write memory.
*/
flash_bank_t **banks=malloc(sizeof(flash_bank_t *)*flash_get_bank_count());
int i;
for (i=0; i<flash_get_bank_count(); i++)
{
p = get_flash_bank_by_num(i);
if (p == NULL)
break;
{
free(banks);
retval = ERROR_FAIL;
gdb_send_error(connection, retval);
return retval;
}
banks[i]=p;
}
qsort(banks, flash_get_bank_count(), sizeof(flash_bank_t *), compare_bank);
u32 ram_start=0;
for (i=0; i<flash_get_bank_count(); i++)
{
p = banks[i];
if (ram_start<p->base)
{
xml_printf(&retval, &xml, &pos, &size, "<memory type=\"ram\" start=\"0x%x\" length=\"0x%x\"/>\n",
ram_start, p->base-ram_start);
}
/* if device has uneven sector sizes, eg. str7, lpc
* we pass the smallest sector size to gdb memory map */
blocksize = gdb_calc_blocksize(p);
xml_printf(&retval, &xml, &pos, &size, "<memory type=\"flash\" start=\"0x%x\" length=\"0x%x\">\n" \
"<property name=\"blocksize\">0x%x</property>\n" \
"</memory>\n", \
p->base, p->size, blocksize);
ram_start=p->base+p->size;
}
if (ram_start!=0)
{
xml_printf(&retval, &xml, &pos, &size, "<memory type=\"ram\" start=\"0x%x\" length=\"0x%x\"/>\n",
ram_start, 0-ram_start);
} else
{
/* a flash chip could be at the very end of the 32 bit address space, in which case
ram_start will be precisely 0 */
}
xml_printf(&retval, &xml, &pos, &size, "</memory-map>\n");