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Make ARM HAL work without CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
- From: Ian Campbell <icampbell at arcom dot com>
- To: eCos Patches <ecos-patches at sources dot redhat dot com>
- Date: Fri, 21 May 2004 13:23:44 +0100
- Subject: Make ARM HAL work without CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
- Organization: Arcom Control Systems
The attached was needed to build Red Boot without
CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS.
Ian.
--
Ian Campbell, Senior Design Engineer
Web: http://www.arcom.com
Arcom, Clifton Road, Direct: +44 (0)1223 403 465
Cambridge CB1 7EA, United Kingdom Phone: +44 (0)1223 411 200
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This message has been virus scanned by MessageLabs.--- a/hal/arm/arch/current/src/hal_misc.c 29 Aug 2003 10:09:41 -0000 1.1.1.2
+++ b/hal/arm/arch/current/src/hal_misc.c 21 May 2004 11:10:44 -0000
@@ -76,10 +76,8 @@ externC void __handle_exception (void);
externC HAL_SavedRegisters *_hal_registers;
#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
-// Historical - this datum is defined by the GDB stubs if present
-externC
+externC void* volatile __mem_fault_handler;
#endif
- void* volatile __mem_fault_handler;
#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
/* Force exception handling into the GDB stubs. This is done by taking over
@@ -126,11 +124,13 @@ exception_handler(HAL_SavedRegisters *re
// This is common in discovery code, e.g. checking for a particular
// device which may generate an exception when probing if the
// device is not present
+#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
if (__mem_fault_handler &&
regs->vector == CYGNUM_HAL_EXCEPTION_DATA_ACCESS) {
regs->pc = (unsigned long)__mem_fault_handler;
return; // Caught an exception inside stubs
}
+#endif
#if defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS) && !defined(CYGPKG_CYGMON)
if (++exception_level == 1) __take_over_debug_traps();