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authorDaniel Jacobowitz <drow@false.org>2006-02-02 01:48:16 +0000
committerDaniel Jacobowitz <drow@false.org>2006-02-02 01:48:16 +0000
commiteeea466063f288e4ee96c7a0b94772a22b73ad79 (patch)
tree1c38b708498682d569274d433db68774fb04e597 /sim
parent9c703ebff4e646a77e62f7af68c190a063c7496a (diff)
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* armos.c (ARMul_OSHandleSWI): Handle the RedBoot system
call meminfo. Return ENOSYS for unhandled RedBoot syscalls.
Diffstat (limited to 'sim')
-rw-r--r--sim/arm/ChangeLog7
-rw-r--r--sim/arm/armos.c21
2 files changed, 25 insertions, 3 deletions
diff --git a/sim/arm/ChangeLog b/sim/arm/ChangeLog
index 84bdf6e..df88ef1 100644
--- a/sim/arm/ChangeLog
+++ b/sim/arm/ChangeLog
@@ -1,3 +1,8 @@
+2006-02-01 Shaun Jackman <sjackman@gmail.com>
+
+ * armos.c (ARMul_OSHandleSWI): Handle the RedBoot system
+ call meminfo. Return ENOSYS for unhandled RedBoot syscalls.
+
2005-11-23 Mark Mitchell <mark@codesourcery.com>
* wrapper.c (gdb/signals.h): Include it.
@@ -7,7 +12,7 @@
2005-11-16 Shaun Jackman <sjackman@gmail.com>
- * sim/arm/armos.c: Include limits.h
+ * armos.c: Include limits.h
(unlink): Remove this macro. It is unused in this file and
conflicts with sim_callback->unlink.
(PATH_MAX): Define as 1024 if not already defined.
diff --git a/sim/arm/armos.c b/sim/arm/armos.c
index 5f5ead7..8e346c7 100644
--- a/sim/arm/armos.c
+++ b/sim/arm/armos.c
@@ -859,9 +859,26 @@ ARMul_OSHandleSWI (ARMul_State * state, ARMword number)
case 18: /* Time. */
sim_callback->printf_filtered
(sim_callback,
- "sim: unhandled RedBoot syscall '%d' encountered - ignoring\n",
+ "sim: unhandled RedBoot syscall `%d' encountered - "
+ "returning ENOSYS\n",
state->Reg[0]);
- return FALSE;
+ state->Reg[0] = -1;
+ OSptr->ErrorNo = cb_host_to_target_errno
+ (sim_callback, ENOSYS);
+ break;
+ case 1001: /* Meminfo. */
+ {
+ ARMword totmem = state->Reg[1],
+ topmem = state->Reg[2];
+ ARMword stack = state->MemSize > 0
+ ? state->MemSize : ADDRUSERSTACK;
+ if (totmem != 0)
+ ARMul_WriteWord (state, totmem, stack);
+ if (topmem != 0)
+ ARMul_WriteWord (state, topmem, stack);
+ state->Reg[0] = 0;
+ break;
+ }
default:
sim_callback->printf_filtered