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arch/tile: provide PT_FLAGS_COMPAT value in pt_regs

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This flag is set for ptrace GETREGS or PEEKUSER for processes
that are COMPAT, i.e. 32-bit.  This allows things like strace
to easily discover what personality to use, for example.

Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
This commit is contained in:
Chris Metcalf
2012-12-12 17:24:39 -05:00
parent 17a263540c
commit cb67e161bc
2 changed files with 46 additions and 17 deletions
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6
arch/tile/include/uapi/asm/ptrace.h
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@@ -84,5 +84,11 @@ struct pt_regs {
#define PTRACE_O_TRACEMIGRATE 0x00010000
#define PTRACE_EVENT_MIGRATE 16
/*
* Flag bits in pt_regs.flags that are part of the ptrace API.
* We start our numbering higher up to avoid confusion with the
* non-ABI kernel-internal values that use the low 16 bits.
*/
#define PT_FLAGS_COMPAT 0x10000 /* process is an -m32 compat process */
#endif /* _UAPI_ASM_TILE_PTRACE_H */