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FreeBSD 11.0 - man page for dwarf_expr_current_offset (freebsd section 3)

DWARF_EXPR_CURRENT_OFFSET(3)				   BSD Library Functions Manual 			      DWARF_EXPR_CURRENT_OFFSET(3)

NAME
dwarf_expr_current_offset -- retrieve the number of bytes in a location expression stream
LIBRARY
DWARF Access Library (libdwarf, -ldwarf)
SYNOPSIS
#include <libdwarf.h> Dwarf_Unsigned dwarf_expr_current_offset(Dwarf_P_Expr expr, Dwarf_Error *err);
DESCRIPTION
Function dwarf_expr_current_offset() returns the size in bytes of the stream representation of a location expression. Argument expr should reference a location expression descriptor allocated using dwarf_new_expr(3). If argument err is not NULL, it will be used to store error information in case of an error.
RETURN VALUES
On success, function dwarf_expr_current_offset() returns the size in bytes of the location descriptor's stream representation. In case of an error, function dwarf_expr_current_offset() returns DW_DLV_NOCOUNT and sets the argument err.
ERRORS
Function dwarf_expr_current_offset() can fail with: [DW_DLE_ARGUMENT] Argument expr was NULL.
SEE ALSO
dwarf(3), dwarf_add_expr_addr(3), dwarf_add_expr_addr_b(3), dwarf_add_expr_gen(3), dwarf_expr_into_block(3), dwarf_new_expr(3)
BSD
September 13, 2011 BSD

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