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authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2014-05-27 12:26:43 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2014-05-27 12:26:43 +0000
commit1f330aa369ca88670a504b28c4a29d7218a572f4 (patch)
treefe42dd6a3085bdba889e9fe254b2097f7db050e6 /os/common/ports/ARM/compilers/GCC
parent54270db1f02469796883ffc4f21e5b2ef39c78ee (diff)
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6966 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/common/ports/ARM/compilers/GCC')
-rw-r--r--os/common/ports/ARM/compilers/GCC/irq.s48
1 files changed, 48 insertions, 0 deletions
diff --git a/os/common/ports/ARM/compilers/GCC/irq.s b/os/common/ports/ARM/compilers/GCC/irq.s
new file mode 100644
index 000000000..8ad50ea36
--- /dev/null
+++ b/os/common/ports/ARM/compilers/GCC/irq.s
@@ -0,0 +1,48 @@
+/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011,2012,2013 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file ARM/compilers/GCC/irq.s
+ * @brief IRQ handling for ARM devices.
+ *
+ * @defgroup ARM_IRQ ARM IRQ Handling
+ * @{
+ */
+
+#if !defined(__DOXYGEN__)
+
+ .section irq
+ .code 32
+ .balign 4
+
+/*
+ * IRQ entry point, note this code is always located at address 0x40, the
+ * IRQ controller data register offset must be calculated accordingly.
+ */
+ .global IrqHandler
+IrqHandler:
+ stmfd sp!, {r0-r3, r12, lr}
+ ldr r0, [pc, #ARM_IRQ_REGISTER_OFFSET]
+ ldr lr, =_port_irq_common
+ bx r0
+
+#endif
+
+/** @} */