/* Memory attributes support, for GDB.
- Copyright 2001 Free Software Foundation, Inc.
+
+ Copyright 2001, 2002 Free Software Foundation, Inc.
This file is part of GDB.
{
MEM_RW, /* mode */
MEM_WIDTH_UNSPECIFIED,
- false, /* hwbreak */
- false, /* cache */
- false /* verify */
+ 0, /* hwbreak */
+ 0, /* cache */
+ 0 /* verify */
};
static struct mem_region *mem_region_chain = NULL;
{
struct mem_region *n, *new;
- if (lo > hi)
+ /* lo == hi is a useless empty region */
+ if (lo >= hi && hi != 0)
{
- printf_unfiltered ("invalid memory region\n");
+ printf_unfiltered ("invalid memory region: low >= high\n");
return NULL;
}
while (n)
{
/* overlapping node */
- if ((lo >= n->lo && lo <= n->hi) ||
- (hi >= n->lo && hi <= n->hi))
+ if ((lo >= n->lo && (lo < n->hi || n->hi == 0))
+ || (hi > n->lo && (hi <= n->hi || n->hi == 0))
+ || (lo <= n->lo && (hi >= n->hi || hi == 0)))
{
printf_unfiltered ("overlapping memory region\n");
return NULL;
{
if (m->enabled_p == 1)
{
- if (addr >= m->lo && addr < m->hi)
+ if (addr >= m->lo && (addr < m->hi || m->hi == 0))
return m;
if (addr >= m->hi && lo < m->hi)
#if 0
else if (strcmp (tok, "hwbreak") == 0)
- attrib.hwbreak = true;
+ attrib.hwbreak = 1;
else if (strcmp (tok, "swbreak") == 0)
- attrib.hwbreak = false;
+ attrib.hwbreak = 0;
#endif
else if (strcmp (tok, "cache") == 0)
- attrib.cache = true;
+ attrib.cache = 1;
else if (strcmp (tok, "nocache") == 0)
- attrib.cache = false;
+ attrib.cache = 0;
#if 0
else if (strcmp (tok, "verify") == 0)
- attrib.verify = true;
+ attrib.verify = 1;
else if (strcmp (tok, "noverify") == 0)
- attrib.verify = false;
+ attrib.verify = 0;
#endif
else
m->number,
m->enabled_p ? 'y' : 'n');
if (TARGET_ADDR_BIT <= 32)
- tmp = longest_local_hex_string_custom ((unsigned long) m->lo, "08l");
+ tmp = local_hex_string_custom ((unsigned long) m->lo, "08l");
else
- tmp = longest_local_hex_string_custom ((unsigned long) m->lo, "016l");
+ tmp = local_hex_string_custom ((unsigned long) m->lo, "016l");
printf_filtered ("%s ", tmp);
-
+
if (TARGET_ADDR_BIT <= 32)
- tmp = longest_local_hex_string_custom ((unsigned long) m->hi, "08l");
+ {
+ if (m->hi == 0)
+ tmp = "0x100000000";
+ else
+ tmp = local_hex_string_custom ((unsigned long) m->hi, "08l");
+ }
else
- tmp = longest_local_hex_string_custom ((unsigned long) m->hi, "016l");
-
+ {
+ if (m->hi == 0)
+ tmp = "0x10000000000000000";
+ else
+ tmp = local_hex_string_custom ((unsigned long) m->hi, "016l");
+ }
+
printf_filtered ("%s ", tmp);
/* Print a token for each attribute.
}
\f
void
-_initialize_mem ()
+_initialize_mem (void)
{
add_com ("mem", class_vars, mem_command,
"Define attributes for memory region.\n\