dwarf_undef_macro(3) [freebsd man page]

DWARF_UNDEF_MACRO(3)					   BSD Library Functions Manual 				      DWARF_UNDEF_MACRO(3)

NAME

     dwarf_undef_macro -- record the removal of a macro definition

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     int
     dwarf_undef_macro(Dwarf_P_Debug dbg, Dwarf_Unsigned lineno, char *name, Dwarf_Error *err);

DESCRIPTION

     Function dwarf_undef_macro() records the removal of a macro definition in a DWARF producer instance.

     Argument dbg should reference a DWARF producer instance allocated using dwarf_producer_init(3) or dwarf_producer_init_b(3).

     Argument lineno specifies the line number of the source line where the macro definition was removed.  A value of zero indicates that the
     macro definition was removed before any source files were read.

     Argument name should point to a NUL-terminated string containing the name of the macro.

     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_undef_macro() returns DW_DLV_OK.  In case of an error, function dwarf_undef_macro() returns DW_DLV_ERROR and sets
     the argument err.

EXAMPLE

     To record the fact that the macro named _STDIO_H_ was removed at line 220 of the current macro file, use:

	   Dwarf_P_Debug dbg;
	   Dwarf_Error de;

	   /* ... Assume 'dbg' refers to a DWARF producer instance... */
	   if (dwarf_undef_macro(dbg, 220, "_STDIO_H_", &de) != DW_DLV_OK)
		   errx(EXIT_FAILURE, "dwarf_def_macro failed: %s",
		       dwarf_errmsg(-1));

ERRORS

     Function dwarf_undef_macro() can fail with:

     [DW_DLE_ARGUMENT]	Either arguments dbg or name was NULL.

     [DW_DLE_MEMORY]	An out of memory condition was encountered during the execution of the function.

SEE ALSO

     dwarf(3), dwarf_def_macro(3), dwarf_end_macro_file(3), dwarf_producer_init(3), dwarf_producer_init_b(3), dwarf_start_macro_file(3),
     dwarf_vendor_ext(3)

BSD
								 November 9, 2011							       BSD

DWARF_ADD_FILE_DECL(3)					   BSD Library Functions Manual 				    DWARF_ADD_FILE_DECL(3)

NAME

     dwarf_add_file_decl -- add a source file entry to a producer instance

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     Dwarf_Unsigned
     dwarf_add_file_decl(Dwarf_P_Debug dbg, char *name, Dwarf_Unsigned dirndx, Dwarf_Unsigned mtime, Dwarf_Unsigned size, Dwarf_Error *err);

DESCRIPTION

     Function dwarf_add_file_decl() adds a source file entry to a producer instance.

     Argument dbg should reference a DWARF producer instance allocated using dwarf_producer_init(3) or dwarf_producer_init_b(3).

     Argument name should point to a NUL-terminated string containing the name of the source file.

     If the file name in argument name is not a fully qualified pathname, argument dirndx should specify the index of the directory where the
     source file resides.  Otherwise, argument dirndx should be 0.  Valid directory indices are those returned by the function
     dwarf_add_directory_decl(3).

     Argument mtime specifies the time when the file was last modified.

     Argument size specifies the size of the file in bytes.

     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_add_file_decl() returns the index value generated for the source file.	In case of an error, function
     dwarf_add_file_decl() returns DW_DLV_NOCOUNT and sets the argument err.

ERRORS

     Function dwarf_add_file_decl() can fail with:

     [DW_DLE_ARGUMENT]	Either arguments dbg or name was NULL.

     [DW_DLE_ARGUMENT]	The length of the NUL-teminated string pointed to by argument name was 0.

     [DW_DLE_MEMORY]	An out of memory condition was encountered during the execution of the function.

SEE ALSO

     dwarf(3), dwarf_add_directory_decl(3), dwarf_add_line_entry(3), dwarf_lne_end_sequence(3), dwarf_lne_set_address(3), dwarf_producer_init(3),
     dwarf_producer_init_b(3)

BSD
								September 17, 2011							       BSD