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Add PIC32 exception handlers

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3630 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2011-05-20 00:21:26 +00:00
parent b1dfa1ca8a
commit fdd0d73ec5
1 changed files with 52 additions and 10 deletions
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configs/pcblogic-pic32mx/ostest/ld.script
+52 -10
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@@ -49,20 +49,32 @@ MEMORY
* REGION PHYSICAL KSEG SIZE
* DESCRIPTION START ADDR (BYTES)
* ------------- ---------- ------ ---------------
* Reset 0x1fc00000 KSEG1 896
* BEV exception 0x1fc00380 KSEG1 256
* DBG exception 0x1fc00480 KSEG1 16
* Exceptions:*
* Reset 0x1fc00000 KSEG1 512
* TLB Refill 0x1fc00200 KSEG1 256
* Cache Error 0x1fc00300 KSEG1 256
* Others 0x1fc00380 KSEG1 256
* Interrupt 0x1fc00400 KSEG1 128
* JTAG 0x1fc00480 KSEG1 16
* Startup logic 0x1fc00490 KSEG0 4096-896-256-16
* Exceptions 0x1fc01000 KSEG0 4096
* Debug code 0x1fc02000 KSEG1 4096-16
* DEVCFG3-0 0x1fc02ff0 KSEG1 16
*
* Exceptions assme:
*
* STATUS: BEV=1 and EXL=0
* CAUSE: IV=1
* JTAG: ProbEn=0
* And multi-vector support disabled
*/
kseg1_reset (rx) : ORIGIN = 0xbfc00000, LENGTH = 896
kseg1_bevexcpt (rx) : ORIGIN = 0xbfc00380, LENGTH = 256
kseg1_dbgexcpt (rx) : ORIGIN = 0xbfc00480, LENGTH = 16
kseg1_intexcpt (rx) : ORIGIN = 0xbfc00380, LENGTH = 128
kseg1_dbgexcpt (rx) : ORIGIN = 0xbfc00400, LENGTH = 128
kseg0_bootmem (rx) : ORIGIN = 0x9fc00490, LENGTH = 4096-1168
kseg0_exptmem (rx) : ORIGIN = 0x9fc01000, LENGTH = 4096
kseg0_excptmem (rx) : ORIGIN = 0x9fc01000, LENGTH = 4096
kseg1_dbgcode (rx) : ORIGIN = 0xbfc02000, LENGTH = 4096-16
kseg1_devcfg (r) : ORIGIN = 0xbfc02ff0, LENGTH = 16
@@ -78,6 +90,9 @@ OUTPUT_FORMAT("elf32-tradlittlemips")
OUTPUT_ARCH(pic32mx)
ENTRY(__start)
INPUT(up_inthandler.o);
INPUT(up_bevhandler.o);
SECTIONS
{
/* Boot FLASH sections */
@@ -87,11 +102,35 @@ SECTIONS
*(.reset)
} > kseg1_reset
.bev_excp :
/* Exception handlers. The following is assumed:
*
* STATUS: BEV=1 and EXL=0
* CAUSE: IV=1
* JTAG: ProbEn=0
* And multi-vector support disabled
*
* In that configuration, the vector locations become:
*
* Reset, Soft Reset bfc0:0000
* TLB Refill bfc0:0200
* Cache Error bfc0:0300
* All others bfc0:0380
* Interrupt bfc0:0400
* EJTAG Debug bfc0:0480
*/
/* KSEG1 exception handler "trampolines" */
.bev_excpt :
{
*(.bev_excp)
*(.bev_excpt)
} > kseg1_bevexcpt
.int_excpt :
{
*(.int_excpt)
} > kseg1_intexcpt
.dbg_excpt = ORIGIN(kseg1_dbgexcpt);
.start :
@@ -99,10 +138,13 @@ SECTIONS
*(.start)
} > kseg0_bootmem
.vectors :
/* KSEG0 exception handlers */
.excpt_handlers :
{
*(.vectors)
} > kseg0_exptmem
*(.bev_handler)
*(.int_handler)
} > kseg0_excptmem
.dbg_code = ORIGIN(kseg1_dbgcode);