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gdbarch: add addressable_memory_unit_size method

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Add a new gdbarch method to get the length of an addressable memory unit
for a given architecture. The default implementation returns 1.

gdb/ChangeLog:

	* arch-utils.h (default_addressable_memory_unit_size): New.
	* arch-utils.c (default_addressable_memory_unit_size): New.
	* gdbarch.sh (addressable_memory_unit_size): New.
	* gdbarch.h: Re-generate.
	* gdbarch.c: Re-generate.
This commit is contained in:
Simon Marchi
2015-06-12 16:51:51 -04:00
parent 99a2c56121
commit 3374165f51
6 changed files with 55 additions and 0 deletions
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8
gdb/gdbarch.h
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@@ -1466,6 +1466,14 @@ typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch
extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch);
extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
/* Return the size in 8-bit bytes of an addressable memory unit on this
architecture. This corresponds to the number of 8-bit bytes associated to
each address in memory. */
typedef int (gdbarch_addressable_memory_unit_size_ftype) (struct gdbarch *gdbarch);
extern int gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch);
extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size);
/* Definition for an unknown syscall, used basically in error-cases. */
#define UNKNOWN_SYSCALL (-1)