[ECOS] XScale Redboot C-runtime startup

["McAtee, Kip" <Kip dot McAtee at SpirentCom dot COM>]

Greetings-

We're debugging on an XScale Cyclone board with Redboot.
When I link my 'app' with:

/usr/xscale-001130/H-i686-pc-cygwin/bin/xscale-elf-gcc -DDEBUG_PCI
-DCYGPKG_IO_P CI_DEBUG -Wall -Wpointer-arith -Wstrict-prototypes
-Winline -Wundef -Woverloaded -virtual -g -fno-rtti -fno-exceptions
-fvtable-gc -finit-priority -mapcs-frame - I../rb/inc
-L/usr/xscale-001130/H-i686-pc-cygwin/lib/gcc-lib/
  xscale-elf/2.9-xscale-001130-specs=iq80310.specs
./objs/main.o
-o objs/test

and starting with a JTAG emulator from:

a0020000 <start>:
a0020000:	e3a0b000 	mov	r11, #0	; 0x0
a0020004:	e3a07000 	mov	r7, #0	; 0x0
a0020008:	ea002e75 	b	a002b9e4 <c_start>

we find ourselves in bsp_trap, without calling main().

Where is the source to the following C runtime startup routines?
__do_global_ctors
__gccmain
c_start
_bsp_trap

Thanks-
Kip

============================
a002b948 <__do_global_ctors>:
a002b948:	e92d4030 	stmdb	sp!, {r4, r5, lr}
a002b94c:	e59f1060 	ldr	r1, [pc, #60]	; a002b9b4
<__do_global_ctors+0x6c>
a002b950:	e5912000 	ldr	r2, [r1]
a002b954:	e3720001 	cmn	r2, #1	; 0x1
a002b958:	1a00000b 	bne	a002b98c <__do_global_ctors+0x44>
a002b95c:	e3a02000 	mov	r2, #0	; 0x0
a002b960:	e2820004 	add	r0, r2, #4	; 0x4
a002b964:	e7913000 	ldr	r3, [r1, r0]
a002b968:	e1530002 	cmp	r3, r2
a002b96c:	0a000006 	beq	a002b98c <__do_global_ctors+0x44>
a002b970:	e1a0c001 	mov	r12, r1
a002b974:	e1a01000 	mov	r1, r0
a002b978:	e2811004 	add	r1, r1, #4	; 0x4
a002b97c:	e79c3001 	ldr	r3, [r12, r1]
a002b980:	e2822001 	add	r2, r2, #1	; 0x1
a002b984:	e3530000 	cmp	r3, #0	; 0x0
a002b988:	1afffffa 	bne	a002b978 <__do_global_ctors+0x30>
a002b98c:	e2524000 	subs	r4, r2, #0	; 0x0
a002b990:	0a000004 	beq	a002b9a8 <__do_global_ctors+0x60>
a002b994:	e59f5018 	ldr	r5, [pc, #18]	; a002b9b4
<__do_global_ctors+0x6c>
a002b998:	e1a0e00f 	mov	lr, pc
a002b99c:	e795f104 	ldr	pc, [r5, r4, lsl #2]
a002b9a0:	e2544001 	subs	r4, r4, #1	; 0x1
a002b9a4:	1afffffb 	bne	a002b998 <__do_global_ctors+0x50>
a002b9a8:	e59f0008 	ldr	r0, [pc, #8]	; a002b9b8
<__do_global_ctors+0x70>
a002b9ac:	e8bd4030 	ldmia	sp!, {r4, r5, lr}
a002b9b0:	ea0000d5 	b	a002bd0c <atexit>
a002b9b4:	a002cd70 	andge	r12, r2, r0, ror sp
a002b9b8:	a002b900 	andge	r11, r2, r0, lsl #18

a002b9bc <__gccmain>:
a002b9bc:	e92d4000 	stmdb	sp!, {lr}
a002b9c0:	e59f2018 	ldr	r2, [pc, #18]	; a002b9e0
<__gccmain+0x24>
a002b9c4:	e5923000 	ldr	r3, [r2]
a002b9c8:	e3530000 	cmp	r3, #0	; 0x0
a002b9cc:	18bd8000 	ldmneia	sp!, {pc}
a002b9d0:	e3a03001 	mov	r3, #1	; 0x1
a002b9d4:	e5823000 	str	r3, [r2]
a002b9d8:	e49de004 	ldr	lr, [sp], #4
a002b9dc:	eaffffd9 	b	a002b948 <__do_global_ctors>
a002b9e0:	a0034000 	andge	r4, r3, r0

a002b9e4 <c_start>:
a002b9e4:	e59f3090 	ldr	r3, [pc, #90]	; a002ba7c
<c_start+0x98>
a002b9e8:	e59f0090 	ldr	r0, [pc, #90]	; a002ba80
<c_start+0x9c>
a002b9ec:	e1a0c00d 	mov	r12, sp
a002b9f0:	e92dd800 	stmdb	sp!, {r11, r12, lr, pc}
a002b9f4:	e1530000 	cmp	r3, r0
a002b9f8:	e24cb004 	sub	r11, r12, #4	; 0x4
a002b9fc:	0a000007 	beq	a002ba20 <c_start+0x3c>
a002ba00:	e59f107c 	ldr	r1, [pc, #7c]	; a002ba84
<c_start+0xa0>
a002ba04:	e1a02003 	mov	r2, r3
a002ba08:	e1520001 	cmp	r2, r1
a002ba0c:	2a000003 	bcs	a002ba20 <c_start+0x3c>
a002ba10:	e4903004 	ldr	r3, [r0], #4
a002ba14:	e4823004 	str	r3, [r2], #4
a002ba18:	e1520001 	cmp	r2, r1
a002ba1c:	3afffffb 	bcc	a002ba10 <c_start+0x2c>
a002ba20:	e59f3060 	ldr	r3, [pc, #60]	; a002ba88
<c_start+0xa4>
a002ba24:	e59f2060 	ldr	r2, [pc, #60]	; a002ba8c
<c_start+0xa8>
a002ba28:	e1530002 	cmp	r3, r2
a002ba2c:	0a000004 	beq	a002ba44 <c_start+0x60>
a002ba30:	2a000003 	bcs	a002ba44 <c_start+0x60>
a002ba34:	e3a01000 	mov	r1, #0	; 0x0
a002ba38:	e4831004 	str	r1, [r3], #4
a002ba3c:	e1530002 	cmp	r3, r2
a002ba40:	3afffffc 	bcc	a002ba38 <c_start+0x54>
a002ba44:	e3a00cba 	mov	r0, #47616	; 0xba00
a002ba48:	e59f1040 	ldr	r1, [pc, #40]	; a002ba90
<c_start+0xac>
a002ba4c:	e28000ad 	add	r0, r0, #173	; 0xad
a002ba50:	eb0000aa 	bl	a002bd00 <_bsp_trap>
a002ba54:	e92d0001 	stmdb	sp!, {r0}
a002ba58:	e10f0000 	mrs	r0, CPSR
a002ba5c:	e3c000c0 	bic	r0, r0, #192	; 0xc0
a002ba60:	e129f000 	msr	CPSR_fc, r0
a002ba64:	e8bd0001 	ldmia	sp!, {r0}
a002ba68:	e59f1024 	ldr	r1, [pc, #24]	; a002ba94
<c_start+0xb0>
a002ba6c:	e3a00000 	mov	r0, #0	; 0x0
a002ba70:	e1a02001 	mov	r2, r1
a002ba74:	ebffd164 	bl	a002000c <main>
a002ba78:	eb0000c5 	bl	a002bd94 <exit>
a002ba7c:	a0030000 	andge	r0, r3, r0
a002ba80:	a0030000 	andge	r0, r3, r0
a002ba84:	a0030800 	andge	r0, r3, r0, lsl #16
a002ba88:	a0034000 	andge	r4, r3, r0
a002ba8c:	a0034e90 	mulge	r3, r0, lr
a002ba90:	a0034e84 	andge	r4, r3, r4, lsl #29
a002ba94:	a00300c8 	andge	r0, r3, r8, asr #1