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Prevent .noinit section from incorrect placement for AVR. 

When .data and .bss sections are empty .noinit section is placed at data
region's start. This will be incorrect for devices that has different
data start address than data region start in linker script.
The patch updates .noinit section's VMA to end of .bss section. So, .noinit
section will be placed at .data section address (-Tdata=<address>) when .data
and .bss sections are empty.

ld/

	* scripttempl/avr.sc (.noinit): Force .noinit VMA to end of .bss VMA.
	* scripttempl/avrtiny.sc (.noinit): Likewise.
This commit is contained in:
Denis Chertykov 2016-01-25 22:33:25 +03:00
parent a0f8e08a3c
commit 7585b2b8b6
3 changed files with 7 additions and 2 deletions
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5
ld/ChangeLog
View File

@ -1,3 +1,8 @@
2016-01-22 Pitchumani Sivanupandi <pitchumani.s@atmel.com>
* scripttempl/avr.sc (.noinit): Force .noinit VMA to end of .bss VMA.
* scripttempl/avrtiny.sc (.noinit): Likewise.
2016-01-21 Nick Clifton <nickc@redhat.com>
PR ld/19453

2
ld/scripttempl/avr.sc
View File

@ -210,7 +210,7 @@ SECTIONS
${RELOCATING+ __data_load_end = __data_load_start + SIZEOF(.data); }
/* Global data not cleared after reset. */
.noinit ${RELOCATING-0}:
.noinit ${RELOCATING+ ADDR(.bss) + SIZEOF (.bss)} ${RELOCATING-0}: ${RELOCATING+ AT (ADDR (.noinit))}
{
${RELOCATING+ PROVIDE (__noinit_start = .) ; }
*(.noinit*)

2
ld/scripttempl/avrtiny.sc
View File

@ -210,7 +210,7 @@ SECTIONS
${RELOCATING+ __data_load_end = __data_load_start + SIZEOF(.data); }
/* Global data not cleared after reset. */
.noinit ${RELOCATING-0}:
.noinit ${RELOCATING+ ADDR(.bss) + SIZEOF (.bss)} ${RELOCATING-0} : ${RELOCATING+ AT (ADDR (.noinit))}
{
${RELOCATING+ PROVIDE (__noinit_start = .) ; }
*(.noinit*)