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nios2: crt0: fix GDB debugging

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When an image is sent over the wire with the GDB 'load' command,
it tries to start execution from the __start symbol, which needs to
be in RAM. Since the reset vector is in ROM, name it something else.

Change-Id: Id0bbfa76db9a8a81bd7ff20be3f2baec81eae15e
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2016-06-17 11:39:08 -07:00 committed by Inaky Perez-Gonzalez
parent c266df2d81
commit 5846018d0d
1 changed files with 5 additions and 5 deletions
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10
arch/nios2/core/crt0.S
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@ -20,7 +20,7 @@
/* exports */
GTEXT(__start)
GTEXT(__text_start)
GTEXT(__reset)
/* imports */
GTEXT(_PrepC)
@ -39,21 +39,21 @@ GTEXT(_interrupt_stack)
* This code can be at most 0x20 bytes, since the exception vector for Nios II
* is usually configured to be 0x20 past the reset vector.
*/
SECTION_FUNC(reset, __start)
SECTION_FUNC(reset, __reset)
/* TODO initialize instruction cache, if present
* ZEP-275
*/
/* Done all we need to do here, jump to __text_start */
movhi r1, %hi(__text_start)
ori r1, r1, %lo(__text_start)
movhi r1, %hi(__start)
ori r1, r1, %lo(__start)
jmp r1
/* Remainder of asm-land initialization code before we can jump into
* the C domain
*/
SECTION_FUNC(TEXT, __text_start)
SECTION_FUNC(TEXT, __start)
/* TODO if shadow register sets enabled, ensure we are in set 0
* ZEP-258