2008-08-27 06:12:11 problem for standalone application using coreB

Pranay Upadhyay (INDIA)

Message: 61172

Hello sir,

I am trying to use simple LED blinking code using coreB. The makefile for this is that

OBJS=main.o

SRCS=$(SRCS:%.o=%.c)

CFLAGS=-g

all: blink

.c.o:

bfin-elf-gcc -c -mcpu=bf561 $(CFLAGS) $< -o $@

blink: $(OBJS)

bfin-elf-gcc -o $@ -mcpu=bf561 -mmulticore -mcoreb $(OBJS)

clean:

rm -f blink *.o *.i *.s

But after compiling the code I am gettin the eroor

/opt/uClinux/bfin-elf/lib/gcc/bfin-elf/4.1.2/../../../../bfin-elf/lib/bf561-none/basiccrt.o: In function `__start':

/usr/src/packages/BUILD/blackfin-toolchain-08r1/../gcc-4.1/libgloss/bfin/basiccrt.S:390: undefined reference to `_main'

collect2: ld returned 1 exit status.

What should be modification in any file?

Can you tell me which toolchain should be installed on my PC for use of dual core for

standalone applicatioon in dual core.

-Regards

Pranay

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2008-08-27 16:28:00 Re: problem for standalone application using coreB

Mike Frysinger (UNITED STATES)

Message: 61197

you've already asked this question and been told the answer. the default entry point is the "main" symbol. either provide it like normal or provide your own C runtime init files.

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2008-08-28 01:00:53 Re: problem for standalone application using coreB

Pranay Upadhyay (INDIA)

Message: 61215

Hello sir,

Thanks for your reply. When I am giving the default entry point main then ther is no compilation error but giving error like..

## Total Size = 0x0000fc82 = 64642 Bytes

## Start Addr = 0x01000000

bfin> bootelf 0x1000000

Loading .init @ 0xff600000 (18 bytes)

Loading .text @ 0xff600014 (3704 bytes)

Loading .fini @ 0xff600e8c (14 bytes)

Loading .rodata @ 0xff400000 (8 bytes)

Loading .eh_frame @ 0xff400008 (4 bytes)

Loading .ctors @ 0xff40000c (8 bytes)

Loading .dtors @ 0xff400014 (8 bytes)

Loading .jcr @ 0xff40001c (4 bytes)

Loading .data @ 0xff400020 (2076 bytes)

Clearing .bss @ 0xff40083c (92 bytes)

## Starting application at 0xff600014 ...

Ack! Something bad happened to the Blackfin!

SEQUENCER STATUS:

SEQSTAT: 0000c02b IPEND: 3fc00bc SYSCFG: 0032

HWERRCAUSE: 0x3

EXCAUSE : 0x2b

physical IVG7 asserted : <0x03fc0764> { _evt_default + 0x0 }

RETE: <0xa229140c> { ___smulsi3_highpart + 0x9e2bb6e8 }

RETN: <0xa132988a> { ___smulsi3_highpart + 0x9d353b66 }

RETX: <0xff7ffff6> { ___smulsi3_highpart + 0xfb82a2d2 }

RETS: <0x03fcdaca> { _do_bootelf + 0x96 }

PC : <0x03fc00bc> { _start + 0xbc }

DCPLB_FAULT_ADDR: <0xffb00fff> { __etext_l1 + 0x100fc7 }

ICPLB_FAULT_ADDR: <0xff7ffff6> { ___smulsi3_highpart + 0xfb82a2d2 }

PROCESSOR STATE:

R0 : 06380000 R1 : 03fc400d R2 : 00000fb6 R3 : ffffffff

R4 : 00000000 R5 : 00000000 R6 : 00000000 R7 : ffb00000

P0 : ffb00000 P1 : 03fc4058 P2 : ffb00fff P3 : 00000002

P4 : ff600014 P5 : 03f9c000 FP : 03f9bcd5 SP : 03f9babc

LB0: 03fd5cec LT0: 03fd5ce0 LC0: 00000000

LB1: 03fc65ae LT1: 03fc65a8 LC1: 00000000

B0 : 364197d7 L0 : 00000000 M0 : 38a7c7fc I0 : 01000000

B1 : d24dff2e L1 : 00000000 M1 : 9e95d5b5 I1 : 03f9bf40

B2 : d49513cb L2 : 00000000 M2 : acc073bb I2 : d6c52f9a

B3 : 93375fd5 L3 : 00000000 M3 : deec3fa3 I3 : c78456dd

A0.w: 00000000 A0.x: 00000000 A1.w: 00000000 A1.x: 00000000

USP : ffb00ff4 ASTAT: 00001006

Hardware Trace:

0 Target : <0x03fc0504> { _bfin_panic + 0x0 }

Source : <0x03fc068e> { _trap_c + 0x14a }

1 Target : <0x03fc0682> { _trap_c + 0x13e }

Source : <0x03fc0560> { _trap_c + 0x1c }

2 Target : <0x03fc0544> { _trap_c + 0x0 }

Source : <0x03fc070a> { _trap + 0x56 }

3 Target : <0x03fc06b4> { _trap + 0x0 }

Source : <0xff7ffff2> { ___smulsi3_highpart + 0xfb82a2ce }

4 Target : <0xff600014> { ___smulsi3_highpart + 0xfb62a2f0 }

Source : <0x03fcdac8> { _do_bootelf + 0x94 }

5 Target : <0x03fcdab8> { _do_bootelf + 0x84 }

Source : <0x03fc731c> { _strncpy + 0x1c }

6 Target : <0x03fc731a> { _strncpy + 0x1a }

Source : <0x03fc7312> { _strncpy + 0x12 }

7 Target : <0x03fc730c> { _strncpy + 0xc }