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13 June 2022, 11:31:42 UTC
Revision 82c1c11bdd92d94f8fd620a3ea6c894eba37d4ed authored by Bodo Stroesser on 07 May 2005, 04:30:46 UTC, committed by Linus Torvalds on 07 May 2005, 05:09:29 UTC 
[PATCH] uml: S390 preparation, peekusr/pokeusr defined by subarch
 
s390 needs to change some parts of arch/um/kernel/ptrace.c.  Thus, the code
regarding PEEKUSER and POKEUSER are shifted to arch/um/sys-<subarch>/ptrace.c.

Also s390 debug registers need to be updated, when singlestepping is switched
on / off.  Thus, setting/resetting of singlestepping is centralized in the new
function set_singlestep(), which also inserts the macro
SUBARCH_SET_SINGLESTEP(mode), if defined.

Finally, s390 has the "ieee_instruction_pointer" in its
registers, which also is allowed to be read via

  ptrace( PTRACE_PEEKUSER, getpid(), PT_IEEE_IP, 0);

To implement this feature, sys_ptrace inserts the macro
SUBARCH_PTRACE_SPECIAL, if defined.

Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent 16c1116
History
Tip revision: 82c1c11bdd92d94f8fd620a3ea6c894eba37d4ed authored by Bodo Stroesser on 07 May 2005, 04:30:46 UTC
[PATCH] uml: S390 preparation, peekusr/pokeusr defined by subarch
Tip revision: 82c1c11
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COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 87.2 KB
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REPORTING-BUGS -rw-r--r-- 2.9 KB

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