_LEB128_UNSIGNED_DECODE64(3E)			 _LEB128_UNSIGNED_DECODE64(3E)

NAME    [Toc]    [Back]

     _leb128_unsigned_decode64:	_leb128_signed_decode64:
     _leb128_unsigned_decode32:	_leb128_signed_decode32	- decode leb128
     integers

SYNOPSIS    [Toc]    [Back]

     #include <cmplrs/leb128.h>

     int _leb128_unsigned_decode64(char* data, __uint64_t* value);

     int _leb128_signed_decode64(char* data, __int64_t*	value);

     int _leb128_unsigned_decode32(char* data, __uint32_t* value);

     int _leb128_signed_decode32(char* data, __int32_t*	value);

DESCRIPTION    [Toc]    [Back]

     These routines decode leb128 numbers into the integers they encode.  The
     leb128 format is a	variable-length	encoding extensively used in the DWARF
     debugging information format and is described in the DWARF	documentation.

     The caller	must know if the leb128	number data in hand is 32 or 64	bit
     and if it is signed or unsigned: nothing in the leb128 format makes it
     possible to determine this	from the input data itself.

     If	a data points to a number which	fits in	32 bits	either the 32bit or
     64bit decoding routine may	be called: the correct value is	returned
     through the value pointer.	 If data points	at a number too	large to fit
     in	32 bits	both the returned-value	*and* the number of bytes returned by
     either of the 32-bit functions will be incorrect.

     The decoded number	is placed into data and	the number of bytes of data
     which held	the number is returned.

     Link with the option -lelfutil to link in these routines.

     The arguments are as follows:

     data is a pointer to the input number to be converted from	leb128 format
	  into an integer.

     value
	  is a pointer to properly aligned space (provided by the caller) to
	  which	the called routine writes the decoded integer value.

FILES    [Toc]    [Back]

     /usr/include/cmplrs/leb128.h
     /usr/lib/libelfutil.a
     /usr/lib32/libelfutil.a
     /usr/lib64/libelfutil.a





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_LEB128_UNSIGNED_DECODE64(3E)			 _LEB128_UNSIGNED_DECODE64(3E)

DIAGNOSTICS    [Toc]    [Back]

     Returns the number	of bytes found and used	in decoding the	number.	 The
     returned value will be in the range 1 to 5	for the	32-bit number input
     versions.	The returned value will	be in the range	1 to 10	for the	64-bit
     number input versions.

     If	a number is erroneously	encoded	for the	call (if the decoded value
     will not fit in the provided value	pointed	to) there is no	error
     indication: instead a value is returned and the length returned is	5 (for
     the 32bit versions) or 10 (for the	64bit versions).

SEE ALSO    [Toc]    [Back]

     libelfutil(5), xlate(4), _leb128_unsigned_encode64,
     _leb128_unsigned_encode32,	_leb128_signed_encode64,
     _leb128_signed_encode32, DWARF Debugging Information Format , A Consumer
     Library Interface to DWARF


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