diff options
Diffstat (limited to 'os/ports/GCC/ARMCMx/crt0_v6m.s')
-rw-r--r-- | os/ports/GCC/ARMCMx/crt0_v6m.s | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/os/ports/GCC/ARMCMx/crt0_v6m.s b/os/ports/GCC/ARMCMx/crt0_v6m.s deleted file mode 100644 index 478625d42..000000000 --- a/os/ports/GCC/ARMCMx/crt0_v6m.s +++ /dev/null @@ -1,133 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011 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 GCC/ARMCMx/crt0_v6m.s
- * @brief Generic ARMv6-M (Cortex-M0/M1) startup file for ChibiOS/RT.
- *
- * @addtogroup ARMCMx_CORE
- * @{
- */
-
-#if !defined(__DOXYGEN__)
-
- .set CONTROL_MODE_PRIVILEGED, 0
- .set CONTROL_MODE_UNPRIVILEGED, 1
- .set CONTROL_USE_MSP, 0
- .set CONTROL_USE_PSP, 2
-
- .text
- .balign 2
- .syntax unified
- .thumb
-
-/*
- * Reset handler.
- */
- .thumb_func
- .global ResetHandler
- .weak ResetHandler
-ResetHandler:
- /*
- * Interrupts are globally masked initially.
- */
- cpsid i
- /*
- * Stack pointers initialization.
- */
- ldr r0, =__ram_end__
- ldr r1, =__main_stack_size__
- subs r0, r0, r1
- /*
- * Note that r0 is the main stack low boundary address and process
- * stack initial top address.
- */
- msr PSP, r0
- /*
- * Early initialization phase, it is empty by default.
- */
- bl __early_init
- /*
- * Data initialization.
- * NOTE: It assumes that the DATA size is a multiple of 4.
- */
- ldr r1, =_textdata
- ldr r2, =_data
- ldr r3, =_edata
-dloop:
- cmp r2, r3
- bge enddloop
- ldr r0, [r1]
- str r0, [r2]
- adds r1, r1, #4
- adds r2, r2, #4
- b dloop
-enddloop:
- /*
- * BSS initialization.
- * NOTE: It assumes that the BSS size is a multiple of 4.
- */
- movs r0, #0
- ldr r1, =_bss_start
- ldr r2, =_bss_end
-bloop:
- cmp r1, r2
- bge endbloop
- str r0, [r1]
- adds r1, r1, #4
- b bloop
-endbloop:
- /*
- * Switches to the Process Stack and uses a barrier just to be safe.
- */
- movs r0, #CONTROL_MODE_PRIVILEGED | CONTROL_USE_PSP
- msr CONTROL, r0
- isb
- /*
- * Main program invocation.
- */
- bl main
- b _main_exit_handler
-
-/*
- * Default main exit code, just a loop.
- * It is a weak symbol, the application code can redefine the behavior.
- */
- .thumb_func
- .global _main_exit_handler
- .weak _main_exit_handler
-_main_exit_handler:
-.loop: b .loop
-
-/*
- * Default early initialization code. It is declared weak in order to be
- * replaced by the real initialization code.
- * The arly initialization is performed just after stacks setup and before BSS
- * and DATA segments initialization.
- */
- .thumb_func
- .global __early_init
- .weak __early_init
-__early_init:
- bx lr
-
-#endif
-
-/** @} */
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