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arc: Update elfarcv2 script template

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Update ARC's elfarcv2 script template with:

- The .ivt section (Interrupt Vector Table) is mapped at the begining
  of STARTUP_MEMORY when ivtbase_addr is not defined. Previously, it
  was pointing to 0x00.

- MEMORY_FILE is a new emulation paramter and sets the name for the
  linker script file which holds the MEMORY commands required by
  arcv2elfx emulation.

- Four new linker variables are introduced available when arcv2elf emulation is used:
  * __TEXT_REGION_ORIGIN__ Once defined it is setting the text region origin. By default it points to zero.
  * __TEXT_REGION_LENGTH__ Once defined it is setting the text region length. By default it is set to 2M.
  * __DATA_REGION_ORIGIN__ Once defined it is setting the data region origin. By default it is set to 0x80000000.
  * __DATA_REGION_LENGTH__ Once defined it is setting the data region length. By default it is set to 2M.

ld/ChangeLog:

	* scripttempl/elfarcv2.sc: Update script template.

Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>
This commit is contained in:
Claudiu Zissulescu
2023-08-29 11:52:06 +03:00
parent 68a2d9bf87
commit cd60a3956d
1 changed files with 11 additions and 7 deletions
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18
ld/scripttempl/elfarcv2.sc
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@@ -58,7 +58,7 @@ IVT="
/* If the 'ivtbase_addr' symbol is defined, it indicates the base address of
the interrupt vectors. See description of INT_VECTOR_BASE register. */
.ivt DEFINED (ivtbase_addr) ? ivtbase_addr : 0x00 :
.ivt DEFINED (ivtbase_addr) ? ivtbase_addr : ORIGIN(${STARTUP_MEMORY}) :
{
${RELOCATING+ PROVIDE (__ivtbase_addr = .); }
KEEP (*(.ivt));
@@ -104,21 +104,25 @@ fi
#
case $GENERIC_BOARD in
yes|1|YES)
test -z "$MEMORY_FILE" && MEMORY_FILE="memory.x"
MEMORY_DEF="
/* Get memory banks definition from some user configuration file.
This file must be located in some linker directory (search path
with -L<dir>). See fixed memory banks emulation script. */
INCLUDE memory.x;
INCLUDE ${MEMORY_FILE};
"
;;
*)
MEMORY_DEF="
/* Fixed definition of the available memory banks.
See generic emulation script for a user defined configuration. */
MEMORY_DEF="
__TEXT_REGION_ORIGIN__ = DEFINED(__TEXT_REGION_ORIGIN__) ? __TEXT_REGION_ORIGIN__ : 0x00;
__TEXT_REGION_LENGTH__ = DEFINED(__TEXT_REGION_LENGTH__) ? __TEXT_REGION_LENGTH__ : ${ICCM_SIZE};
__DATA_REGION_ORIGIN__ = DEFINED(__DATA_REGION_ORIGIN__) ? __DATA_REGION_ORIGIN__ : ${RAM_START_ADDR};
__DATA_REGION_LENGTH__ = DEFINED(__DATA_REGION_LENGTH__) ? __DATA_REGION_LENGTH__ : ${RAM_SIZE};
MEMORY
{
ICCM : ORIGIN = 0x00000000, LENGTH = ${ICCM_SIZE}
DCCM : ORIGIN = ${RAM_START_ADDR}, LENGTH = ${RAM_SIZE}
ICCM : ORIGIN = __TEXT_REGION_ORIGIN__, LENGTH = __TEXT_REGION_LENGTH__
DCCM : ORIGIN = __DATA_REGION_ORIGIN__, LENGTH = __DATA_REGION_LENGTH__
}
"
;;