DWARF_ERRMSG(3) BSD Library Functions Manual DWARF_ERRMSG(3)NAME
dwarf_errmsg -- retrieve a human-readable string corresponding to a Dwarf_Error instance
LIBRARY
DWARF Access Library (libdwarf, -ldwarf)
SYNOPSIS
#include <libdwarf.h>
const char *
dwarf_errmsg(Dwarf_Error err);
DESCRIPTION
Function dwarf_errmsg() returns a NUL-terminated string for the error denoted by argument err.
Argument err should be a valid handle to a Dwarf_Error instance.
Memory Management
The returned pointer should not be freed using free(3) or dwarf_dealloc(3).
RETURN VALUES
Function dwarf_errmsg() returns a pointer to a NUL-terminated string.
SEE ALSO dwarf(3), dwarf_errno(3)BSD December 12, 2009 BSD
Check Out this Related Man Page
DWARF_DEF_MACRO(3) BSD Library Functions Manual DWARF_DEF_MACRO(3)NAME
dwarf_def_macro -- add a macro definition to a DWARF producer instance
LIBRARY
DWARF Access Library (libdwarf, -ldwarf)
SYNOPSIS
#include <libdwarf.h>
int
dwarf_def_macro(Dwarf_P_Debug dbg, Dwarf_Unsigned lineno, char *name, char *value, Dwarf_Error *err);
DESCRIPTION
Function dwarf_def_macro() adds a macro definition to 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 is defined. A line number of zero is used for macros that are
defined before any source file is read.
Argument name should point to a NUL-terminated string containing the name of the macro. For function-like macros this parameter should also
include parentheses and parameter names if any.
Argument value should point to a NUL-terminated string containing the value of the macro. If the macro doesn't have a value, argument value
should be set to NULL.
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_def_macro() returns DW_DLV_OK. In case of an error, function dwarf_def_macro() returns DW_DLV_ERROR and sets the
argument err.
EXAMPLE
To record the fact that a macro named _STDIO_H_ was defined at line 20 of the current macro file, use:
Dwarf_P_Debug dbg;
Dwarf_Error de;
/* ... Assume 'dbg' refers to a DWARF producer instance... */
if (dwarf_def_macro(dbg, 20, "_STDIO_H_", NULL, &de) != DW_DLV_OK)
errx(EXIT_FAILURE, "dwarf_def_macro failed: %s",
dwarf_errmsg(-1));
ERRORS
Function dwarf_def_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_end_macro_file(3), dwarf_producer_init(3), dwarf_producer_init_b(3), dwarf_start_macro_file(3), dwarf_undef_macro(3),
dwarf_vendor_ext(3)BSD November 9, 2011 BSD
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