diff options
Diffstat (limited to 'tests/dwarf-getmacros.c')
-rw-r--r-- | tests/dwarf-getmacros.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/tests/dwarf-getmacros.c b/tests/dwarf-getmacros.c new file mode 100644 index 00000000..92e093ca --- /dev/null +++ b/tests/dwarf-getmacros.c @@ -0,0 +1,144 @@ +/* Test program for dwarf_getmacros and related + Copyright (C) 2009, 2014 Red Hat, Inc. + This file is part of elfutils. + + This file is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + elfutils is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> +#include ELFUTILS_HEADER(dw) +#include <dwarf.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <assert.h> +#include <inttypes.h> + +static void include (Dwarf *dbg, Dwarf_Off macoff, ptrdiff_t token); + +static int +mac (Dwarf_Macro *macro, void *dbg) +{ + static int level = 0; + + unsigned int opcode; + dwarf_macro_opcode (macro, &opcode); + switch (opcode) + { + case DW_MACRO_GNU_transparent_include: + { + Dwarf_Attribute at; + int r = dwarf_macro_param (macro, 0, &at); + assert (r == 0); + + Dwarf_Word w; + r = dwarf_formudata (&at, &w); + assert (r == 0); + + printf ("%*sinclude %#" PRIx64 "\n", level, "", w); + ++level; + include (dbg, w, DWARF_GETMACROS_START); + --level; + printf ("%*s/include\n", level, ""); + break; + } + + case DW_MACRO_GNU_start_file: + { + Dwarf_Files *files; + size_t nfiles; + if (dwarf_macro_getsrcfiles (dbg, macro, &files, &nfiles) < 0) + printf ("dwarf_macro_getsrcfiles: %s\n", + dwarf_errmsg (dwarf_errno ())); + + Dwarf_Word w = 0; + dwarf_macro_param2 (macro, &w, NULL); + + const char *name = dwarf_filesrc (files, (size_t) w, NULL, NULL); + printf ("%*sfile %s\n", level, "", name); + ++level; + break; + } + + case DW_MACRO_GNU_end_file: + { + --level; + printf ("%*s/file\n", level, ""); + break; + } + + case DW_MACINFO_define: + case DW_MACRO_GNU_define_indirect: + { + const char *value; + dwarf_macro_param2 (macro, NULL, &value); + printf ("%*s%s\n", level, "", value); + break; + } + + case DW_MACINFO_undef: + case DW_MACRO_GNU_undef_indirect: + break; + + default: + { + size_t paramcnt; + dwarf_macro_getparamcnt (macro, ¶mcnt); + printf ("%*sopcode %u with %zd arguments\n", + level, "", opcode, paramcnt); + break; + } + } + + return DWARF_CB_ABORT; +} + +static void +include (Dwarf *dbg, Dwarf_Off macoff, ptrdiff_t token) +{ + while ((token = dwarf_getmacros_off (dbg, macoff, mac, dbg, token)) != 0) + if (token == -1) + { + puts (dwarf_errmsg (dwarf_errno ())); + break; + } +} + +int +main (int argc, char *argv[]) +{ + assert (argc >= 3); + const char *name = argv[1]; + ptrdiff_t cuoff = strtol (argv[2], NULL, 0); + bool new_style = argc > 3; + + int fd = open (name, O_RDONLY); + Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); + + Dwarf_Die cudie_mem, *cudie = dwarf_offdie (dbg, cuoff, &cudie_mem); + + for (ptrdiff_t off = new_style ? DWARF_GETMACROS_START : 0; + (off = dwarf_getmacros (cudie, mac, dbg, off)); ) + if (off == -1) + { + puts (dwarf_errmsg (dwarf_errno ())); + break; + } + + dwarf_end (dbg); + + return 0; +} |