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Add code to release all memory used by the jit state.

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* include/lightning.h, lib/lightning.c: Implement the new
	jit_clear_state and jit_destroy_state calls. jit_clear_state
	releases all memory not required during jit_execution; that
	is, leaves only the mmap'ed data and code buffers allocated.
	jit_destroy_state releases the mmap'ed buffers as well as
	the jit_state_t object itself, that holds pointers to the
	code and data buffers, as well as annotation pointers (for
	disassembly or backtrace) in the data buffer.

	* lib/jit_note.c: Correct invalid vector offset access.

	* check/ccall.c, check/lightning.c, doc/ifib.c, doc/incr.c,
	doc/printf.c, doc/rfib.c, doc/rpn.c: Use the new jit_clear_state
	and jit_destroy_state calls, to demonstrate the new code to
	release all jit memory.

	* doc/body.texi: Add basic documentation and usage description
	of jit_clear_state and jit_destroy_state.
This commit is contained in:
pcpa 2013-02-11 15:51:55 -02:00
parent 6039794ec3
commit 8f020fe044
12 changed files with 138 additions and 4 deletions
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4
include/lightning.h
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@ -752,6 +752,10 @@ extern void init_jit(char*);
extern void finish_jit(void);
extern jit_state_t *jit_new_state(void);
#define jit_clear_state() _jit_clear_state(_jit)
extern void _jit_clear_state(jit_state_t*);
#define jit_destroy_state() _jit_destroy_state(_jit)
extern void _jit_destroy_state(jit_state_t*);
#define jit_address(node) _jit_address(_jit, node)
extern jit_pointer_t _jit_address(jit_state_t*, jit_node_t*);