dwarf_get_fde_info_for_all_regs(3) [freebsd man page]

DWARF_GET_FDE_INFO_FOR_ALL_REGS(3)			   BSD Library Functions Manual 			DWARF_GET_FDE_INFO_FOR_ALL_REGS(3)

NAME

     dwarf_get_fde_info_for_all_regs -- retrieve register rule row

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     int
     dwarf_get_fde_info_for_all_regs(Dwarf_Fde fde, Dwarf_Addr pc, Dwarf_Regtable *reg_table, Dwarf_Addr *row_pc, Dwarf_Error *err);

DESCRIPTION

     Function dwarf_get_fde_info_for_all_regs() retrieves a row from the register rule table associated with the given FDE descriptor.

     Argument fde should reference a valid DWARF FDE descriptor.

     Argument pc should hold the program counter address to be used to locate the desired table row.

     Argument reg_table should point to a Dwarf_Regtable descriptor which will hold the returned table row of register rules.

     Argument row_pc should point to a location which will be set to the lowest program counter address associated with the table row.

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

     The Dwarf_Regtable descriptor is defined in the header file <libdwarf.h>:

	   typedef struct {
		   struct {
			   Dwarf_Small	   dw_offset_relevant;
			   Dwarf_Half	   dw_regnum;
			   Dwarf_Addr	   dw_offset;
		   } rules[DW_REG_TABLE_SIZE];
	   } Dwarf_Regtable;

     For each of the register rules returned, the dw_offset_relevant field is set to 1 if the register rule has a offset value. The dw_regnum
     field is set to the register number associated with the regsiter rule.  The dw_offset field is set to the offset value associated with the
     register rule.

     The number of register columns returned is either the constant value DW_REG_TABLE_SIZE as defined in the header file <libdwarf.h>, or the
     value set by function dwarf_set_frame_rule_table_size(3), whichever is smaller.

   COMPATIBILITY
     Function dwarf_get_fde_info_for_all_regs() is deprecated since it only supports DWARF2 frame sections.  Applications should instead use func-
     tion dwarf_get_fde_info_for_all_regs3(3) which supports both DWARF2 and DWARF3 frame sections.

RETURN VALUES

     Function dwarf_get_fde_info_for_all_regs() 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_info_for_all_regs() can fail with:

     [DW_DLE_ARGUMENT]		   One of the arguments fde, reg_table or row_pc was NULL.

     [DW_DLE_PC_NOT_IN_FDE_RANGE]  The program counter value provided in argument pc did not fall in the range covered by argument fde.

SEE ALSO

     dwarf(3), dwarf_get_fde_at_pc(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_n(3), dwarf_set_frame_cfa_value(3), dwarf_set_frame_rule_table_size(3),
     dwarf_set_frame_rule_initial_value(3), dwarf_set_frame_same_value(3), dwarf_set_frame_undefined_value(3)

BSD
								   June 4, 2011 							       BSD

Check Out this Related Man Page

DWARF_SET_FRAME_CFA_VALUE(3)				   BSD Library Functions Manual 			      DWARF_SET_FRAME_CFA_VALUE(3)

NAME

     dwarf_set_frame_cfa_value, dwarf_set_frame_rule_initial_value, dwarf_set_frame_rule_table_size, dwarf_set_frame_same_value,
     dwarf_set_frame_undefined_value -- set internal register rule table parameters

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     Dwarf_Half
     dwarf_set_frame_cfa_value(Dwarf_Debug dbg, Dwarf_Half value);

     Dwarf_Half
     dwarf_set_frame_rule_initial_value(Dwarf_Debug dbg, Dwarf_Half value);

     Dwarf_Half
     dwarf_set_frame_rule_table_size(Dwarf_Debug dbg, Dwarf_Half value);

     Dwarf_Half
     dwarf_set_frame_same_value(Dwarf_Debug dbg, Dwarf_Half value);

     Dwarf_Half
     dwarf_set_frame_undefined_value(Dwarf_Debug dbg, Dwarf_Half value);

DESCRIPTION

     These functions set the parameters of the internal register rule table.

     Argument dbg should reference a DWARF debug context allocated using dwarf_init(3).

     Argument value should hold the parameter value to set.

     Function dwarf_set_frame_cfa_value() sets the column number for the CFA register rule in the internal register rule table.  The constant
     DW_FRAME_CFA_COL is the default CFA register column number for DWARF2-only interfaces, and the constant DW_FRAME_CFA_COL3 is the default CFA
     column number for DWARF3-compatible interfaces.

     Function dwarf_set_frame_rule_initial_value() sets the initial value of the register rules in the internal register rule table.  The default
     initial value is the constant DW_FRAME_REG_INITIAL_VALUE, defined in the header file <libdwarf.h>.

     Function dwarf_set_frame_rule_table_size() sets the maxmium number of columns of the internal register rule table.  Argument value should be
     at least as large as the number of real registers in the ABI.

     Function dwarf_set_frame_same_value() sets the register number representing the ``same value'' register rule.  The default register number
     for the ``same value'' rule is the constant DW_FRAME_SAME_VAL, defined in the header file <libdwarf.h>.

     Function dwarf_set_frame_undefined_value() sets the register number representing the ``undefined'' register rule.	The default register num-
     ber for the ``undefined'' rule is the constant DW_FRAME_UNDEFINED_VAL, defined in the header file <libdwarf.h>.

RETURN VALUES

     These functions return the previous value of the parameter being set.

SEE ALSO

     dwarf(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_n(3)

BSD
								   June 18, 2011							       BSD

Linux and UNIX Man Pages

dwarf_get_fde_info_for_all_regs(3) [freebsd man page]

Check Out this Related Man Page