diff options
Diffstat (limited to 'src/tests/addrscopes.c')
| -rw-r--r-- | src/tests/addrscopes.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/tests/addrscopes.c b/src/tests/addrscopes.c new file mode 100644 index 00000000..fca61d33 --- /dev/null +++ b/src/tests/addrscopes.c @@ -0,0 +1,195 @@ +/* Test program for dwarf_getscopes. + Copyright (C) 2005 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 <assert.h> +#include <inttypes.h> +#include ELFUTILS_HEADER(dwfl) +#include <dwarf.h> +#include <argp.h> +#include <stdio.h> +#include <stdio_ext.h> +#include <locale.h> +#include <stdlib.h> +#include <error.h> +#include <string.h> + + +static void +paddr (const char *prefix, Dwarf_Addr addr, Dwfl_Line *line) +{ + const char *src; + int lineno, linecol; + if (line != NULL + && (src = dwfl_lineinfo (line, &addr, &lineno, &linecol, + NULL, NULL)) != NULL) + { + if (linecol != 0) + printf ("%s%#" PRIx64 " (%s:%d:%d)", + prefix, addr, src, lineno, linecol); + else + printf ("%s%#" PRIx64 " (%s:%d)", + prefix, addr, src, lineno); + } + else + printf ("%s%#" PRIx64, prefix, addr); +} + +static void +print_vars (unsigned int indent, Dwarf_Die *die) +{ + Dwarf_Die child; + if (dwarf_child (die, &child) == 0) + do + switch (dwarf_tag (&child)) + { + case DW_TAG_variable: + case DW_TAG_formal_parameter: + printf ("%*s%-30s[%6" PRIx64 "]\n", indent, "", + dwarf_diename (&child), + (uint64_t) dwarf_dieoffset (&child)); + break; + default: + break; + } + while (dwarf_siblingof (&child, &child) == 0); + + Dwarf_Attribute attr_mem; + Dwarf_Die origin; + if (dwarf_hasattr (die, DW_AT_abstract_origin) + && dwarf_formref_die (dwarf_attr (die, DW_AT_abstract_origin, &attr_mem), + &origin) != NULL + && dwarf_child (&origin, &child) == 0) + do + switch (dwarf_tag (&child)) + { + case DW_TAG_variable: + case DW_TAG_formal_parameter: + printf ("%*s%s (abstract)\n", indent, "", + dwarf_diename (&child)); + break; + default: + break; + } + while (dwarf_siblingof (&child, &child) == 0); +} + + +#define INDENT 4 + +static void +handle_address (GElf_Addr pc, Dwfl *dwfl) +{ + Dwarf_Addr cubias; + Dwarf_Die *cudie = dwfl_addrdie (dwfl, pc, &cubias); + if (cudie == NULL) + error (EXIT_FAILURE, 0, "dwfl_addrdie: %s", dwfl_errmsg (-1)); + + Dwarf_Die *scopes; + int n = dwarf_getscopes (cudie, pc - cubias, &scopes); + if (n < 0) + error (EXIT_FAILURE, 0, "dwarf_getscopes: %s", dwarf_errmsg (-1)); + else if (n == 0) + printf ("%#" PRIx64 ": not in any scope\n", pc); + else + { + printf ("%#" PRIx64 ":\n", pc); + unsigned int indent = 0; + while (n-- > 0) + { + Dwarf_Die *const die = &scopes[n]; + + indent += INDENT; + printf ("%*s%s (%#x)", indent, "", + dwarf_diename (die) ?: "<unnamed>", + dwarf_tag (die)); + + Dwarf_Addr lowpc, highpc; + if (dwarf_lowpc (die, &lowpc) == 0 + && dwarf_highpc (die, &highpc) == 0) + { + lowpc += cubias; + highpc += cubias; + Dwfl_Line *loline = dwfl_getsrc (dwfl, lowpc); + Dwfl_Line *hiline = dwfl_getsrc (dwfl, highpc); + paddr (": ", lowpc, loline); + if (highpc != lowpc) + paddr (" .. ", lowpc, hiline == loline ? NULL : hiline); + } + puts (""); + + print_vars (indent + INDENT, die); + } + } +} + +int +main (int argc, char *argv[]) +{ + int remaining; + + /* Set locale. */ + (void) setlocale (LC_ALL, ""); + + Dwfl *dwfl = NULL; + (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &remaining, &dwfl); + assert (dwfl != NULL); + + int result = 0; + + /* Now handle the addresses. In case none are given on the command + line, read from stdin. */ + if (remaining == argc) + { + /* We use no threads here which can interfere with handling a stream. */ + (void) __fsetlocking (stdin, FSETLOCKING_BYCALLER); + + char *buf = NULL; + size_t len = 0; + while (!feof_unlocked (stdin)) + { + if (getline (&buf, &len, stdin) < 0) + break; + + char *endp; + uintmax_t addr = strtoumax (buf, &endp, 0); + if (endp != buf) + handle_address (addr, dwfl); + else + result = 1; + } + + free (buf); + } + else + { + do + { + char *endp; + uintmax_t addr = strtoumax (argv[remaining], &endp, 0); + if (endp != argv[remaining]) + handle_address (addr, dwfl); + else + result = 1; + } + while (++remaining < argc); + } + + dwfl_end (dwfl); + + return result; +} |