1) Swapping to c++ instead of assembly implementations of several kernel APIs to avoid calling probably broken implementations of __EH_FRAME_?? macros
2) Commenting out otherwise unavoidable calls to __EH_FRAME_?? macros in uc_exe.cia. This is a temporary hack.
Both changes to see if they get past an early kernel panic in the Syborg ROM from the current build:
EH ERROR: no exception descriptor for address 0x801eb277
Thread efile.exe::Main Panic USER-EXEC 3
// Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
// e32\memmodel\epoc\multiple\arm\xkernel.cia
//
//
#include <arm_mem.h>
__NAKED__ TBool Exc::IsMagic(TLinAddr /*anAddress*/)
//
// Return TRUE if anAddress is a 'magic' exception handling instruction
//
{
asm("adr r1, __magic_addresses "); // r1 points to list of magic addresses
asm("is_magic_1: ");
asm("ldr r2, [r1], #4 "); // r2=next magic address to check
asm("cmp r2, r0 "); // is r0=magic address?
asm("cmpne r2, #0 "); // if not, have we reached end of list?
asm("bne is_magic_1 "); // if neither, check next address
asm("movs r0, r2 "); // r0=0 if not magic, r0 unchanged if magic
__JUMP(,lr);
asm("__magic_addresses: ");
asm(".word __magic_address_kusaferead ");
asm(".word __magic_address_saferead ");
asm(".word __magic_address_kusafewrite ");
asm(".word __magic_address_safewrite ");
asm(".word __magic_address_msg_lookup_1 "); // in preprocess handler
asm(".word __magic_address_readdesheader1 ");
asm(".word __magic_address_readdesheader2 ");
asm(".word __magic_address_readdesheader3 ");
#ifdef __MESSAGE_MACHINE_CODED_2__
asm(".word __magic_address_msg_lookup_2 ");
#endif
#ifdef __CLIENT_REQUEST_MACHINE_CODED__
asm(".word __magic_address_client_request_callback");
asm(".word __magic_address_svr_accept_1 ");
asm(".word __magic_address_svr_accept_2 ");
asm(".word __magic_address_svr_accept_3 ");
asm(".word __magic_address_svr_accept_4 ");
asm(".word __magic_address_svr_accept_5 ");
asm(".word __magic_address_svr_accept_6 ");
asm(".word __magic_address_svr_accept_7 ");
asm(".word __magic_address_svr_accept_8 ");
#endif
#ifdef __REQUEST_COMPLETE_MACHINE_CODED__
asm(".word __magic_address_reqc ");
asm(".word __magic_address_kern_request_complete ");
#endif
// list terminator
asm(".word 0 ");
}