110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/* Test dwarf_get_units finds split DWO CUs.
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Copyright (C) 2018 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <dwarf.h>
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#include ELFUTILS_HEADER(dw)
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#include <stdio.h>
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#include <inttypes.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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int
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main (int argc, char *argv[])
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{
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for (int i = 1; i < argc; i++)
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{
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printf ("file: %s\n", argv[i]);
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int fd = open (argv[i], O_RDONLY);
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Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
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if (dbg == NULL)
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{
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printf ("%s not usable: %s\n", argv[i], dwarf_errmsg (-1));
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return -1;
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}
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Dwarf_CU *cu = NULL;
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Dwarf_Die cudie, subdie;
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uint8_t unit_type;
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Dwarf_Half version;
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int count = 0;
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while (dwarf_get_units (dbg, cu, &cu, &version,
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&unit_type, &cudie, &subdie) == 0)
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{
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count++;
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if (unit_type == DW_UT_skeleton)
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{
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Dwarf_Attribute attr;
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Dwarf_Word word;
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Dwarf_Addr addr;
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printf ("Split DIE: %s\n", dwarf_diename (&subdie));
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if (dwarf_attr_integrate (&subdie,
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DW_AT_GNU_addr_base, &attr) == NULL
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&& dwarf_attr_integrate (&subdie,
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DW_AT_addr_base, &attr) == NULL)
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printf ("No addr_base");
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else if (dwarf_formudata (&attr, &word) != 0)
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printf ("Bad addr_base: %s\n", dwarf_errmsg (-1));
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else
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printf ("addr_base secoff: 0x%" PRIx64 "\n", word);
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if (dwarf_attr (&subdie, DW_AT_low_pc, &attr) != NULL)
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printf ("Unexpected low_pc on split DIE.\n");
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if (dwarf_attr_integrate (&subdie,
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DW_AT_low_pc, &attr) == NULL)
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printf ("No low_pc");
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else if (dwarf_formaddr (&attr, &addr) != 0)
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printf ("Bad low_pc: %s\n", dwarf_errmsg (-1));
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else
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printf ("low_pc addr: 0x%" PRIx64 "\n", addr);
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if (dwarf_hasattr (&subdie, DW_AT_high_pc))
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printf ("Unexpected highpc on split DIE\n");
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if (dwarf_hasattr (&subdie, DW_AT_ranges))
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printf ("Unexpected ranges on split DIE\n");
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if (dwarf_hasattr_integrate (&subdie, DW_AT_high_pc))
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printf ("Skel has high_pc.\n");
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if (dwarf_hasattr_integrate (&subdie, DW_AT_ranges))
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printf ("Skel has ranges.\n");
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printf ("\n");
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}
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}
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if (count == 0)
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{
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printf ("No units found\n");
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return -1;
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}
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dwarf_end (dbg);
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close (fd);
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}
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return 0;
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}
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