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Add exception vectors & low-level handlers

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At the moment these are almost bit-for-bit copies of the vector
behaviour in the RTOS SDK, but hopefully that will start to change.

Progress towards #2
This commit is contained in:
Angus Gratton 2015-07-28 11:01:57 +10:00
parent d4a503f320
commit ed7ba52c9a
5 changed files with 261 additions and 38 deletions
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36
ld/eagle.app.v6.ld
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@ -90,11 +90,6 @@ PHDRS
/* Default entry point: */
ENTRY(call_user_start)
EXTERN(sdk__DebugExceptionVector)
EXTERN(sdk__DoubleExceptionVector)
EXTERN(sdk__KernelExceptionVector)
EXTERN(sdk__NMIExceptionVector)
EXTERN(sdk__UserExceptionVector)
PROVIDE(_memmap_vecbase_reset = 0x40000000);
/* Various memory-map dependent cache attribute settings: */
_memmap_cacheattr_wb_base = 0x00000110;
@ -196,13 +191,6 @@ SECTIONS
_rodata_end = ABSOLUTE(.);
} >dram0_0_seg :dram0_0_phdr
.UserExceptionVector.literal : AT(LOADADDR(.rodata) + (ADDR(.UserExceptionVector.literal) - ADDR(.rodata))) ALIGN(4)
{
_UserExceptionVector_literal_start = ABSOLUTE(.);
*(.UserExceptionVector.literal)
_UserExceptionVector_literal_end = ABSOLUTE(.);
} >dram0_0_seg :dram0_0_phdr
.bss ALIGN(8) (NOLOAD) : ALIGN(4)
{
. = ALIGN (8);
@ -231,30 +219,8 @@ SECTIONS
{
_stext = .;
_text_start = ABSOLUTE(.);
*(.UserEnter.text)
. = ALIGN(16);
*(.DebugExceptionVector.text)
. = ALIGN(16);
*(.NMIExceptionVector.text)
. = ALIGN(16);
*(.KernelExceptionVector.text)
LONG(0)
LONG(0)
LONG(0)
LONG(0)
. = ALIGN(16);
*(.UserExceptionVector.text)
LONG(0)
LONG(0)
LONG(0)
LONG(0)
. = ALIGN(16);
*(.DoubleExceptionVector.text)
LONG(0)
LONG(0)
LONG(0)
LONG(0)
. = ALIGN (16);
*(.vecbase.text)
*(.entry.text)
*(.init.literal)
*(.init)