# In microcomputer (MC) mode, the vectors are mapped into the on-chip ROM,
|
# In microcomputer (MC) mode, the vectors are mapped into the on-chip ROM,
|
# otherwise in microprocessor (MP) mode the vectors are mapped to address 0
|
# otherwise in microprocessor (MP) mode the vectors are mapped to address 0
|
# on the external bus. In MC mode, the on-chip ROM contains a bootloader program
|
# on the external bus. In MC mode, the on-chip ROM contains a bootloader program
|
# that loads the internal RAM from the serial port or external ROM.
|
# that loads the internal RAM from the serial port or external ROM.
|
#
|
#
|
# Common configurations:
|
# Common configurations:
|
# 1. MC mode, no external memory (serial boot).
|
# 1. MC mode, no external memory (serial boot).
|
# 2. MC mode, external RAM (serial boot).
|
# 2. MC mode, external RAM (serial boot).
|
# 3. MC mode, external ROM.
|
# 3. MC mode, external ROM.
|
# 4. MC mode, external ROM, external RAM.
|
# 4. MC mode, external ROM, external RAM.
|
# 5. MP mode, external ROM.
|
# 5. MP mode, external ROM.
|
# 6. MP mode, external ROM, external RAM.
|
# 6. MP mode, external ROM, external RAM.
|
# 7. MP mode, external RAM (dual-port with hosting CPU or external debugger).
|
# 7. MP mode, external RAM (dual-port with hosting CPU or external debugger).
|
#
|
#
|
# Config TEXT DATA/BSS
|
# Config TEXT DATA/BSS
|
# 1. INT_RAM INT_RAM (mcmode,onchip)
|
# 1. INT_RAM INT_RAM (mcmode,onchip)
|
# 2. EXT_RAM EXT_RAM (mcmode,extram)
|
# 2. EXT_RAM EXT_RAM (mcmode,extram)
|
# 3. INT_RAM INT_RAM (mcmode,onchip)
|
# 3. INT_RAM INT_RAM (mcmode,onchip)
|
# 4. EXT_RAM EXT_RAM (mcmode,extram)
|
# 4. EXT_RAM EXT_RAM (mcmode,extram)
|
# 5. EXT_ROM INT_RAM (mpmode,onchip,extrom)
|
# 5. EXT_ROM INT_RAM (mpmode,onchip,extrom)
|
# 6. EXT_ROM EXT_RAM (mpmode,extram,extrom)
|
# 6. EXT_ROM EXT_RAM (mpmode,extram,extrom)
|
# 7. EXT_RAM EXT_RAM (mpmode,extram)
|
# 7. EXT_RAM EXT_RAM (mpmode,extram)
|
#
|
#
|
# In MC mode, TEXT and DATA are copied into RAM by the bootloader.
|
# In MC mode, TEXT and DATA are copied into RAM by the bootloader.
|
#
|
#
|
# In MP mode with external ROM, DATA needs to be copied into RAM at boot time.
|
# In MP mode with external ROM, DATA needs to be copied into RAM at boot time.
|
#
|
#
|
# If there is external RAM it is better to use that and reserve the internal RAM
|
# If there is external RAM it is better to use that and reserve the internal RAM
|
# for data buffers. However, the address of the external RAM needs to be specified.
|
# for data buffers. However, the address of the external RAM needs to be specified.
|
#
|
#
|
# This emulation assumes config 7.
|
# This emulation assumes config 7.
|
|
|
case $OUTPUT_ARCH in
|
case $OUTPUT_ARCH in
|
tic3x) OUTPUT_ARCHNAME="TMS320C3x" ;;
|
tic3x) OUTPUT_ARCHNAME="TMS320C3x" ;;
|
tic4x) OUTPUT_ARCHNAME="TMS320C4x" ;;
|
tic4x) OUTPUT_ARCHNAME="TMS320C4x" ;;
|
esac
|
esac
|
|
|
case $ONCHIP in
|
case $ONCHIP in
|
yes) RAM=RAM;
|
yes) RAM=RAM;
|
STACK_SIZE_DEFAULT=128;
|
STACK_SIZE_DEFAULT=128;
|
HEAP_SIZE_DEFAULT=0;
|
HEAP_SIZE_DEFAULT=0;
|
;;
|
;;
|
*) RAM=EXT0;
|
*) RAM=EXT0;
|
STACK_SIZE_DEFAULT=0x1000;
|
STACK_SIZE_DEFAULT=0x1000;
|
HEAP_SIZE_DEFAULT=0x4000;
|
HEAP_SIZE_DEFAULT=0x4000;
|
;;
|
;;
|
esac
|
esac
|
|
|
TEXT_MEMORY=$RAM;
|
TEXT_MEMORY=$RAM;
|
DATA_MEMORY=$RAM;
|
DATA_MEMORY=$RAM;
|
|
|
|
|
MEMORY_DEF="
|
MEMORY_DEF="
|
/* C30 memory space. */
|
/* C30 memory space. */
|
MEMORY
|
MEMORY
|
{
|
{
|
EXT0 : org = 0x0000000, len = 0x800000 /* External address bus. */
|
EXT0 : org = 0x0000000, len = 0x800000 /* External address bus. */
|
XBUS : org = 0x0800000, len = 0x002000 /* Expansion bus. */
|
XBUS : org = 0x0800000, len = 0x002000 /* Expansion bus. */
|
IOBUS : org = 0x0804000, len = 0x002000 /* I/O BUS. */
|
IOBUS : org = 0x0804000, len = 0x002000 /* I/O BUS. */
|
RAM0 : org = 0x0809800, len = 0x000400 /* Internal RAM block 0. */
|
RAM0 : org = 0x0809800, len = 0x000400 /* Internal RAM block 0. */
|
RAM1 : org = 0x0809a00, len = 0x000400 /* Internal RAM block 1. */
|
RAM1 : org = 0x0809a00, len = 0x000400 /* Internal RAM block 1. */
|
RAM : org = 0x0809800, len = 0x000800 /* Internal RAM. */
|
RAM : org = 0x0809800, len = 0x000800 /* Internal RAM. */
|
EXT1 : org = 0x080a000, len = 0x7f6000 /* External address bus. */
|
EXT1 : org = 0x080a000, len = 0x7f6000 /* External address bus. */
|
}
|
}
|
"
|
"
|
|
|
test -z "$ENTRY" && ENTRY=_start
|
test -z "$ENTRY" && ENTRY=_start
|
|
|
cat <
|
cat <
|
${RELOCATING+/* Linker script for $OUTPUT_ARCHNAME executable. */}
|
${RELOCATING+/* Linker script for $OUTPUT_ARCHNAME executable. */}
|
${RELOCATING-/* Linker script for $OUTPUT_ARCHNAME object file (ld -r). */}
|
${RELOCATING-/* Linker script for $OUTPUT_ARCHNAME object file (ld -r). */}
|
|
|
OUTPUT_FORMAT("${OUTPUT_FORMAT}")
|
OUTPUT_FORMAT("${OUTPUT_FORMAT}")
|
OUTPUT_ARCH("${OUTPUT_ARCH}")
|
OUTPUT_ARCH("${OUTPUT_ARCH}")
|
${LIB_SEARCH_DIRS}
|
${LIB_SEARCH_DIRS}
|
ENTRY(${ENTRY})
|
ENTRY(${ENTRY})
|
|
|
${RELOCATING+ __HEAP_SIZE = DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : ${HEAP_SIZE_DEFAULT};}
|
${RELOCATING+ __HEAP_SIZE = DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : ${HEAP_SIZE_DEFAULT};}
|
${RELOCATING+ __STACK_SIZE = DEFINED(__STACK_SIZE) ? __STACK_SIZE : ${STACK_SIZE_DEFAULT};}
|
${RELOCATING+ __STACK_SIZE = DEFINED(__STACK_SIZE) ? __STACK_SIZE : ${STACK_SIZE_DEFAULT};}
|
|
|
${RELOCATING+${MEMORY_DEF}}
|
${RELOCATING+${MEMORY_DEF}}
|
|
|
/* In the small memory model the .data and .bss sections must be contiguous
|
/* In the small memory model the .data and .bss sections must be contiguous
|
when loaded and fit within the same page. The DP register is loaded
|
when loaded and fit within the same page. The DP register is loaded
|
with the page address. */
|
with the page address. */
|
|
|
SECTIONS
|
SECTIONS
|
{
|
{
|
/* Reset, interrupt, and trap vectors. */
|
/* Reset, interrupt, and trap vectors. */
|
.vectors ${RELOCATING+ 0} : {
|
.vectors ${RELOCATING+ 0} : {
|
*(.vectors)
|
*(.vectors)
|
} ${RELOCATING+ > ${TEXT_MEMORY}}
|
} ${RELOCATING+ > ${TEXT_MEMORY}}
|
/* Constants. */
|
/* Constants. */
|
.const : {
|
.const : {
|
*(.const)
|
*(.const)
|
} ${RELOCATING+ > ${TEXT_MEMORY}}
|
} ${RELOCATING+ > ${TEXT_MEMORY}}
|
/* Program code. */
|
/* Program code. */
|
.text : {
|
.text : {
|
${RELOCATING+ __text = .;}
|
${RELOCATING+ __text = .;}
|
${RELOCATING+ *(.init)}
|
${RELOCATING+ *(.init)}
|
*(.text)
|
*(.text)
|
${CONSTRUCTING+ ___CTOR_LIST__ = .;}
|
${CONSTRUCTING+ ___CTOR_LIST__ = .;}
|
${CONSTRUCTING+ LONG(___CTOR_END__ - ___CTOR_LIST__ - 2)}
|
${CONSTRUCTING+ LONG(___CTOR_END__ - ___CTOR_LIST__ - 2)}
|
${CONSTRUCTING+ *(.ctors)}
|
${CONSTRUCTING+ *(.ctors)}
|
${CONSTRUCTING+ LONG(0);}
|
${CONSTRUCTING+ LONG(0);}
|
${CONSTRUCTING+ ___CTOR_END__ = .;}
|
${CONSTRUCTING+ ___CTOR_END__ = .;}
|
${CONSTRUCTING+ ___DTOR_LIST__ = .;}
|
${CONSTRUCTING+ ___DTOR_LIST__ = .;}
|
${CONSTRUCTING+ LONG(___DTOR_END__ - ___DTOR_LIST__ - 2)}
|
${CONSTRUCTING+ LONG(___DTOR_END__ - ___DTOR_LIST__ - 2)}
|
${CONSTRUCTING+ *(.dtors)}
|
${CONSTRUCTING+ *(.dtors)}
|
${CONSTRUCTING+ LONG(0)}
|
${CONSTRUCTING+ LONG(0)}
|
${CONSTRUCTING+ ___DTOR_END__ = .;}
|
${CONSTRUCTING+ ___DTOR_END__ = .;}
|
${RELOCATING+ *(.fini)}
|
${RELOCATING+ *(.fini)}
|
${RELOCATING+ __etext = .;}
|
${RELOCATING+ __etext = .;}
|
} ${RELOCATING+ > ${TEXT_MEMORY}}
|
} ${RELOCATING+ > ${TEXT_MEMORY}}
|
/* Global initialised variables. */
|
/* Global initialised variables. */
|
.data :
|
.data :
|
{
|
{
|
${RELOCATING+ __data = .;}
|
${RELOCATING+ __data = .;}
|
*(.data)
|
*(.data)
|
${RELOCATING+ __edata = .;}
|
${RELOCATING+ __edata = .;}
|
} ${RELOCATING+ > ${DATA_MEMORY}}
|
} ${RELOCATING+ > ${DATA_MEMORY}}
|
/* Global uninitialised variables. */
|
/* Global uninitialised variables. */
|
.bss : {
|
.bss : {
|
${RELOCATING+ __bss = .;}
|
${RELOCATING+ __bss = .;}
|
*(.bss)
|
*(.bss)
|
*(COMMON)
|
*(COMMON)
|
${RELOCATING+ __end = .;}
|
${RELOCATING+ __end = .;}
|
} ${RELOCATING+ > ${DATA_MEMORY}}
|
} ${RELOCATING+ > ${DATA_MEMORY}}
|
/* Heap. */
|
/* Heap. */
|
.heap :
|
.heap :
|
{
|
{
|
${RELOCATING+ __heap = .;}
|
${RELOCATING+ __heap = .;}
|
${RELOCATING+ . += __HEAP_SIZE};
|
${RELOCATING+ . += __HEAP_SIZE};
|
} ${RELOCATING+ > ${DATA_MEMORY}}
|
} ${RELOCATING+ > ${DATA_MEMORY}}
|
/* Stack (grows upward). */
|
/* Stack (grows upward). */
|
.stack :
|
.stack :
|
{
|
{
|
${RELOCATING+ __stack = .;}
|
${RELOCATING+ __stack = .;}
|
*(.stack)
|
*(.stack)
|
${RELOCATING+ . = . + __STACK_SIZE};
|
${RELOCATING+ . = . + __STACK_SIZE};
|
} ${RELOCATING+ > ${DATA_MEMORY}}
|
} ${RELOCATING+ > ${DATA_MEMORY}}
|
.stab 0 ${RELOCATING+(NOLOAD)} :
|
.stab 0 ${RELOCATING+(NOLOAD)} :
|
{
|
{
|
[ .stab ]
|
[ .stab ]
|
}
|
}
|
.stabstr 0 ${RELOCATING+(NOLOAD)} :
|
.stabstr 0 ${RELOCATING+(NOLOAD)} :
|
{
|
{
|
[ .stabstr ]
|
[ .stabstr ]
|
}
|
}
|
}
|
}
|
EOF
|
EOF
|
|
|
