20 Mar
2012
20 Mar
'12
6:38 p.m.
Dear Marek Vasut,
In message 201203201009.43717.marex@denx.de you wrote:
- const uint32_t data_abort_memdetect_handler = 0xe25ef004;
...
Because it rewrites piece of RAM, which is then called in the Data abort context.
This is a mere implementation detail. You could use a pointer instead, which would then point to the RO data segment. You could even use some __attribute__ ((section(".text"))) to make sure the "instruction" is really in the text segment, for example (untested):
const uint32_t insn __attribute__ ((section(".text"))) = 0xe25ef004; ... vt[4] = &insn;
?
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Without facts, the decision cannot be made logically. You must rely
on your human intuition.
-- Spock, "Assignment: Earth", stardate unknown