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[PATCH] sim: add --map-info option
- From: Mike Frysinger <vapier at gentoo dot org>
- To: gdb-patches at sourceware dot org
- Cc: Stephen dot Kilbane at analog dot com, Stuart dot Henderson at analog dot com, David dot Gibson at analog dot com
- Date: Wed, 1 Dec 2010 11:11:03 -0500
- Subject: [PATCH] sim: add --map-info option
There are options for listing the current device/hw tree and memory
regions, but no way to find out at run time all the current mappings.
So add a new --map-info option akin to the --memory-info option which
displays all the current mappings.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-12-01 Mike Frysinger <vapier@gentoo.org>
* sim-memopt.c (OPTION_MAP_INFO): Define.
(memory_options): Handle --map-info.
(memory_option_handler): Handle OPTION_MAP_INFO.
---
sim/common/sim-memopt.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 50 insertions(+), 1 deletions(-)
diff --git a/sim/common/sim-memopt.c b/sim/common/sim-memopt.c
index 47b6c9e..9f58ec5 100644
--- a/sim/common/sim-memopt.c
+++ b/sim/common/sim-memopt.c
@@ -67,7 +67,8 @@ enum {
OPTION_MEMORY_ALIAS,
OPTION_MEMORY_CLEAR,
OPTION_MEMORY_FILL,
- OPTION_MEMORY_MAPFILE
+ OPTION_MEMORY_MAPFILE,
+ OPTION_MAP_INFO
};
static DECLARE_OPTION_HANDLER (memory_option_handler);
@@ -113,6 +114,9 @@ static const OPTION memory_options[] =
{ {"info-memory", no_argument, NULL, OPTION_MEMORY_INFO },
'\0', NULL, NULL,
memory_option_handler },
+ { {"map-info", no_argument, NULL, OPTION_MAP_INFO },
+ '\0', NULL, "List mapped regions",
+ memory_option_handler },
{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
};
@@ -520,6 +524,51 @@ memory_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt,
break;
}
+ case OPTION_MAP_INFO:
+ {
+ sim_core *memory;
+ unsigned nr_map;
+
+ for (memory = STATE_CORE (sd), nr_map = 0; nr_map < nr_maps; ++nr_map)
+ {
+ sim_core_map *map = &memory->common.map[nr_map];
+ sim_core_mapping *mapping = map->first;
+
+ if (!mapping)
+ continue;
+
+ if (nr_map <= io_map)
+ sim_io_printf (sd, "%s maps:\n",
+ (nr_map == read_map) ? "read" :
+ (nr_map == write_map) ? "write" :
+ (nr_map == exec_map) ? "exec" :
+ /*(nr_map == io_map) ?*/ "io");
+ else
+ sim_io_printf (sd, "??? (%u) maps:\n", nr_map);
+
+ do
+ {
+ unsigned modulo;
+ sim_io_printf (sd, " map ");
+ if (mapping->space != 0)
+ sim_io_printf (sd, "0x%lx:", (long) mapping->space);
+ sim_io_printf (sd, "0x%08lx", (long) mapping->base);
+ if (mapping->level != 0)
+ sim_io_printf (sd, "@0x%lx", (long) mapping->level);
+ sim_io_printf (sd, ",0x%lx", (long) mapping->nr_bytes);
+ modulo = mapping->mask + 1;
+ if (modulo != 0)
+ sim_io_printf (sd, "%%0x%lx", (long) modulo);
+ sim_io_printf (sd, "\n");
+ mapping = mapping->next;
+ }
+ while (mapping);
+ }
+
+ return SIM_RC_OK;
+ break;
+ }
+
default:
sim_io_eprintf (sd, "Unknown memory option %d\n", opt);
return SIM_RC_FAIL;
--
1.7.3.1