RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

libdebugger/target: Add support for backend code writters

Browse Source 
The call lets backends support special methods of writing code.

Updates #5098
This commit is contained in:
Chris Johns
2024-08-05 11:48:00 +10:00
parent 6a367f4689
commit 53a62631ac
2 changed files with 92 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

119
cpukit/libdebugger/rtems-debugger-target.c
View File

@@ -217,22 +217,31 @@ rtems_debugger_target_swbreak_control(bool insert, uintptr_t addr, DB_UINT kind)
if (loc == swbreaks[i].address) {
size_t remaining;
if (!insert) {
if (target->breakpoint_size > 4)
memcpy(loc, swbreaks[i].contents, target->breakpoint_size);
else {
switch (target->breakpoint_size) {
case 4:
loc[3] = swbreaks[i].contents[3];
case 3:
loc[2] = swbreaks[i].contents[2];
case 2:
loc[1] = swbreaks[i].contents[1];
case 1:
loc[0] = swbreaks[i].contents[0];
break;
if (target->code_writer != NULL) {
r = target->code_writer(loc,
&swbreaks[i].contents[0],
target->breakpoint_size);
if (r < 0) {
return r;
}
} else {
if (target->breakpoint_size > 4) {
memcpy(loc, &swbreaks[i].contents[0], target->breakpoint_size);
} else {
switch (target->breakpoint_size) {
case 4:
loc[3] = swbreaks[i].contents[3];
case 3:
loc[2] = swbreaks[i].contents[2];
case 2:
loc[1] = swbreaks[i].contents[1];
case 1:
loc[0] = swbreaks[i].contents[0];
break;
}
}
rtems_debugger_target_cache_sync(&swbreaks[i]);
}
rtems_debugger_target_cache_sync(&swbreaks[i]);
--target->swbreaks.level;
remaining = (target->swbreaks.level - i) * swbreak_size;
memmove(&swbreaks[i], &swbreaks[i + 1], remaining);
@@ -287,27 +296,36 @@ rtems_debugger_target_swbreak_insert(void)
uint8_t* loc = swbreaks[i].address;
if (rtems_debugger_verbose())
rtems_debugger_printf("rtems-db: bp: in: %p\n", swbreaks[i].address);
if (target->breakpoint_size > 4)
memcpy(loc, &target->breakpoint[0], target->breakpoint_size);
else {
if (rtems_debugger_verbose())
rtems_debugger_printf("rtems-db: bp: in: %p %p %d %d %d\n",
loc, &target->breakpoint[0],
(int) target->breakpoint_size,
(int) i, (int) target->swbreaks.level);
switch (target->breakpoint_size) {
case 4:
loc[3] = target->breakpoint[3];
case 3:
loc[2] = target->breakpoint[2];
case 2:
loc[1] = target->breakpoint[1];
case 1:
loc[0] = target->breakpoint[0];
break;
if (target->code_writer != NULL) {
r = target->code_writer(loc,
&target->breakpoint[0],
target->breakpoint_size);
if (r < 0) {
return r;
}
} else {
if (target->breakpoint_size > 4) {
memcpy(loc, &target->breakpoint[0], target->breakpoint_size);
} else {
if (rtems_debugger_verbose())
rtems_debugger_printf("rtems-db: bp: in: %p %p %d %d %d\n",
loc, &target->breakpoint[0],
(int) target->breakpoint_size,
(int) i, (int) target->swbreaks.level);
switch (target->breakpoint_size) {
case 4:
loc[3] = target->breakpoint[3];
case 3:
loc[2] = target->breakpoint[2];
case 2:
loc[1] = target->breakpoint[1];
case 1:
loc[0] = target->breakpoint[0];
break;
}
}
r = rtems_debugger_target_cache_sync(&swbreaks[i]);
}
r = rtems_debugger_target_cache_sync(&swbreaks[i]);
}
}
return r;
@@ -328,22 +346,29 @@ rtems_debugger_target_swbreak_remove(void)
uint8_t* contents = &swbreaks[i].contents[0];
if (rtems_debugger_verbose())
rtems_debugger_printf("rtems-db: bp: out: %p\n", swbreaks[i].address);
if (target->breakpoint_size > 4)
memcpy(loc, contents, target->breakpoint_size);
else {
switch (target->breakpoint_size) {
case 4:
loc[3] = contents[3];
case 3:
loc[2] = contents[2];
case 2:
loc[1] = contents[1];
case 1:
loc[0] = contents[0];
break;
if (target->code_writer != NULL) {
r = target->code_writer(loc, contents, target->breakpoint_size);
if (r < 0) {
return r;
}
} else {
if (target->breakpoint_size > 4) {
memcpy(loc, contents, target->breakpoint_size);
} else {
switch (target->breakpoint_size) {
case 4:
loc[3] = contents[3];
case 3:
loc[2] = contents[2];
case 2:
loc[1] = contents[1];
case 1:
loc[0] = contents[0];
break;
}
}
r = rtems_debugger_target_cache_sync(&swbreaks[i]);
}
r = rtems_debugger_target_cache_sync(&swbreaks[i]);
}
}
return r;