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Remove last_cache

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This patch removes global variable 'last_cache', and initialize
'target_dcache' lazily, so that 'target_dcache' can replace
'last_cache'.  No functionalities should be changed after this patch.

gdb:

2013-11-20  Yao Qi  <yao@codesourcery.com>

	* dcache.c (last_cache): Remove.
	(dcache_free, dcache_init): Update.
	(dcache_update):
	(dcache_print_line): Add parameter 'dcache'.  Replace
	'target_dcache' with 'dcache'.
	(dcache_info): Move code to dcache_info_1. Call
	'dcache_info_1'.
	(dcache_info_1): New function.
	(set_dcache_size): Call target_dcache_invalidate.
	(set_dcache_line_size): Call target_dcache_invalidate.
	* target.c (target_dcache_init_p): New function.
	(target_dcache_invalidate): Check target_dcache_init_p first.
	(target_dcache_get, target_dcache_get_or_init): New function.
	(memory_xfer_partial_1): Adjust.
	(initialize_target): Don't initialize 'target_dcache'.
	* target.h (struct dcache_struct): Declare.
	(target_dcache_get): Declare.
This commit is contained in:
Yao Qi 2013-10-29 21:34:20 +08:00
parent 3e9ecad3e8
commit 2a2f9fe400
4 changed files with 86 additions and 32 deletions
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3
gdb/target.h
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@ -37,6 +37,7 @@ struct uploaded_tp;
struct static_tracepoint_marker;
struct traceframe_info;
struct expression;
struct dcache_struct;
/* This include file defines the interface between the main part
of the debugger, and the part which is target-specific, or
@ -1045,6 +1046,8 @@ int target_supports_disable_randomization (void);
/* Invalidate all target dcaches. */
extern void target_dcache_invalidate (void);
extern struct dcache_struct *target_dcache_get (void);
extern int target_read_string (CORE_ADDR, char **, int, int *);
extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr,