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#include "newlib.h"
#include "arm.h"
#include "swi.h"
/* ANSI concatenation macros. */
#define CONCAT(a, b) CONCAT2(a, b)
#define CONCAT2(a, b) a ## b
#ifdef __USER_LABEL_PREFIX__
#define FUNCTION( name ) CONCAT (__USER_LABEL_PREFIX__, name)
#else
#error __USER_LABEL_PREFIX is not defined
#endif
#ifdef HAVE_INITFINI_ARRAY
#define _init __libc_init_array
#define _fini __libc_fini_array
#endif
/* .text is used instead of .section .text so it works with arm-aout too. */
.text
.syntax unified
#ifdef THUMB_V7_V6M
.thumb
.macro FUNC_START name
.global \name
.thumb_func
\name:
.endm
#else
.code 32
.macro FUNC_START name
.global \name
\name:
.endm
#endif
.macro indirect_call reg
#ifdef HAVE_CALL_INDIRECT
blx \reg
#else
mov lr, pc
mov pc, \reg
#endif
.endm
.align 0
FUNC_START _mainCRTStartup
FUNC_START _start
FUNC_START start
#if defined(__ELF__) && !defined(__USING_SJLJ_EXCEPTIONS__)
/* Annotation for EABI unwinding tables. */
.fnstart
#endif
/* Start by setting up a stack */
#ifdef ARM_RDP_MONITOR
/* Issue Demon SWI to read stack info */
swi SWI_GetEnv /* Returns command line in r0 */
mov sp,r1 /* and the highest memory address in r1 */
/* stack limit is at end of data */
/* allow slop for stack overflow handling and small frames */
#ifdef __ARM_ARCH_6M__
ldr r0, .LC2
adds r0, #128
adds r0, #128
mov sl, r0
#else
ldr sl, .LC2
add sl, sl, #256
#endif
#else
#ifdef ARM_RDI_MONITOR
/* Issue Angel SWI to read stack info */
movs r0, #AngelSWI_Reason_HeapInfo
adr r1, .LC0 /* point at ptr to 4 words to receive data */
#ifdef THUMB_V7M_V6M
bkpt AngelSWI
#elif defined(__thumb2__)
/* We are in thumb mode for startup on armv7 architectures. */
AngelSWIAsm AngelSWI
#else
/* We are always in ARM mode for startup on pre armv7 archs. */
AngelSWIAsm AngelSWI_ARM
#endif
ldr r0, .LC0 /* point at values read */
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