Hello,
recently I have updated my qemu from 0.9.0 to 0.9.1 and had problems
with the remote debugger memory access. Especially the command
x /10i 0x4000
doesn't work, even if the PC is 0x4000.
I have tracked down the problem till target-sparc/translate.c, where the
following calls are done:
if (get_physical_address(env, &phys_addr, &prot, &access_index, addr,
2, 0) != 0)
if (get_physical_address(env, &phys_addr, &prot, &access_index,
addr, 0, 0) != 0)
return -1;
In 0.9.0 the last arg to get_physical_address was 'is_user', now it is
'mmu_idx'. is_user
is now evaluated in target-sparc/helper.c:get_physical_adress by
is_user = mmu_idx == MMU_USER_IDX;
So if 'mmu_idx' ist still 0 (and MMU_USER_IDX is also 0) the resulting
'is_user' is TRUE
and the later
error_code = access_table[*access_index][access_perms];
if (error_code && !((env->mmuregs[0] & MMU_NF) && is_user))
return error_code;
always fails with access_index 0/2 and access_perms 7.
I have changed the last arg of get_physical_address to 1 and all works as
expected.
Thanks for your attention!
matthias
_________________________________________________
Matthias Stein,
GOM Gesellschaft fuer Optische Messtechnik mbH,
Mittelweg 7-8, 38106 Braunschweig, Germany
E-mail: [EMAIL PROTECTED], Internet: http://www.gom.com
Tel.: +49 (0)531 39029-0, Fax: +49 (0)531 39029-15
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