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Manual Pages  — DWARF_GET_FDE_RANGE

NAME

dwarf_get_fde_range – retrieve range information from an FDE descriptor

CONTENTS

LIBRARY

DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

#include <libdwarf.h>

int
dwarf_get_fde_range(Dwarf_Fde fde, Dwarf_Addr *low_pc, Dwarf_Unsigned *func_len, Dwarf_Ptr *fde_bytes, Dwarf_Unsigned *fde_byte_len, Dwarf_Off *cie_offset, Dwarf_Signed *cie_index, Dwarf_Off *fde_offset, Dwarf_Error *err);

DESCRIPTION

Function dwarf_get_fde_range() retrieves range and offset information from a given FDE descriptor.

Argument fde should reference a valid DWARF FDE descriptor.

Argument low_pc should point to a location that will be set to the lowest program counter address covered by the FDE descriptor.

Argument func_len should point to a location that will hold the length in bytes of the address range covered by the FDE descriptor.

Argument fde_bytes should point to a location that will be set to a pointer to the content of the FDE descriptor itself.

Argument fde_byte_len should point to a location that will hold the length in bytes of the FDE descriptor itself.

Argument cie_offset should point to a location that will be set to the offset, relative to the DWARF ".debug_frame" section, of the CIE descriptor associated with the given FDE descriptor.

Argument cie_index should point to a location that will hold the index of the CIE descriptor associated with the FDE descriptor. The returned value is a zero-based index into the array of CIE descriptors returned by a prior call to functions dwarf_get_fde_list(3) or dwarf_get_fde_list_eh(3).

Argument fde_offset should point to a location that will be set to the offset, relative to the DWARF ".debug_frame" section, of the FDE descriptor.

If argument err is not NULL, it will be used to store error information in case of an error.

RETURN VALUES

Function dwarf_get_fde_range() returns DW_DLV_OK when it succeeds. In case of an error, it returns DW_DLV_ERROR and sets the argument err.

ERRORS

Function dwarf_get_fde_range() can fail with:
[DW_DLE_ARGUMENT] One of the arguments fde, low_pc, func_len, fde_bytes, fde_byte_len, cie_offset, cie_index or fde_offset was NULL.

SEE ALSO

dwarf(3), dwarf_get_cie_index(3), dwarf_get_cie_info(3), dwarf_get_cie_of_fde(3), dwarf_get_fde_at_pc(3), dwarf_get_fde_info_for_all_regs(3), dwarf_get_fde_info_for_all_regs3(3), dwarf_get_fde_info_for_cfa_reg3(3), dwarf_get_fde_info_for_reg(3), dwarf_get_fde_info_for_reg3(3), dwarf_get_fde_instr_bytes(3), dwarf_get_fde_list(3), dwarf_get_fde_list_eh(3), dwarf_get_fde_n(3)
DWARF_GET_FDE_RANGE (3) May 22, 2011
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