On 24 Jul 2015 12:35, "Sebastian Huber" <sebastian.hu...@embedded-brains.de> wrote:
> > > On 23/07/15 23:24, Rohini Kulkarni wrote: > >> I could finally get back to this issue. I used Pi 1 for debugging, but >> the reason for this problem will apply to Pi 2 also. >> With text section set to ARMV7_MMU_CODE_CACHED ( which implies read only) >> , a data abort exception occurs with memset() inside bsp_start_clear_bss() >> function. An illegal write access to an address according to me. >> > > Which exception and which address? Something is not working here. > This is a part of the debugging output. When I used ARMV7_MMU_CODE_CACHED. (gdb) s bsp_start_clear_bss () at ../../../../../.././raspberrypi/lib/include/bsp/start.h:126 126 memset(bsp_section_bss_begin, 0, (size_t) bsp_section_bss_size); (gdb) s memset (m=0x1157e0, c=0, n=64176) at ../../../../../gcc-4.9.2/newlib/libc/string/memset.c:59 59 ../../../../../gcc-4.9.2/newlib/libc/string/memset.c: No such file or directory. (gdb) s 49 in ../../../../../gcc-4.9.2/newlib/libc/string/memset.c (gdb) s _ARMV4_Exception_data_abort_default () at ../../../../../../../../rtems-local/rtems/c/src/../../cpukit/score/cpu/arm/armv4-exception-default.S:71 71 sub sp, #MORE_CONTEXT_SIZE When I set text section flag to ARMV7_MMU_READ_WRITE, the system starts successfully. > > -- > Sebastian Huber, embedded brains GmbH > > Address : Dornierstr. 4, D-82178 Puchheim, Germany > Phone : +49 89 189 47 41-16 > Fax : +49 89 189 47 41-09 > E-Mail : sebastian.hu...@embedded-brains.de > PGP : Public key available on request. > > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. > >
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