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Diffstat (limited to 'src/libdw/dwarf_getpubnames.c')
-rw-r--r--src/libdw/dwarf_getpubnames.c245
1 files changed, 0 insertions, 245 deletions
diff --git a/src/libdw/dwarf_getpubnames.c b/src/libdw/dwarf_getpubnames.c
deleted file mode 100644
index 19f4eae1..00000000
--- a/src/libdw/dwarf_getpubnames.c
+++ /dev/null
@@ -1,245 +0,0 @@
-/* Get public symbol information.
- Copyright (C) 2002, 2003, 2004, 2005, 2008 Red Hat, Inc.
- This file is part of elfutils.
- Written by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- This file is free software; you can redistribute it and/or modify
- it under the terms of either
-
- * the GNU Lesser General Public License as published by the Free
- Software Foundation; either version 3 of the License, or (at
- your option) any later version
-
- or
-
- * the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at
- your option) any later version
-
- or both in parallel, as here.
-
- 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 copies of the GNU General Public License and
- the GNU Lesser General Public License along with this program. If
- not, see <http://www.gnu.org/licenses/>. */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/param.h>
-
-#include <libdwP.h>
-#include <dwarf.h>
-
-
-static int
-get_offsets (Dwarf *dbg)
-{
- size_t allocated = 0;
- size_t cnt = 0;
- struct pubnames_s *mem = NULL;
- const size_t entsize = sizeof (struct pubnames_s);
- unsigned char *const startp = dbg->sectiondata[IDX_debug_pubnames]->d_buf;
- unsigned char *readp = startp;
- unsigned char *endp = readp + dbg->sectiondata[IDX_debug_pubnames]->d_size;
-
- while (readp + 14 < endp)
- {
- /* If necessary, allocate more entries. */
- if (cnt >= allocated)
- {
- allocated = MAX (10, 2 * allocated);
- struct pubnames_s *newmem
- = (struct pubnames_s *) realloc (mem, allocated * entsize);
- if (newmem == NULL)
- {
- __libdw_seterrno (DWARF_E_NOMEM);
- err_return:
- free (mem);
- return -1;
- }
-
- mem = newmem;
- }
-
- /* Read the set header. */
- int len_bytes = 4;
- Dwarf_Off len = read_4ubyte_unaligned_inc (dbg, readp);
- if (len == DWARF3_LENGTH_64_BIT)
- {
- len = read_8ubyte_unaligned_inc (dbg, readp);
- len_bytes = 8;
- }
- else if (unlikely (len >= DWARF3_LENGTH_MIN_ESCAPE_CODE
- && len <= DWARF3_LENGTH_MAX_ESCAPE_CODE))
- {
- __libdw_seterrno (DWARF_E_INVALID_DWARF);
- goto err_return;
- }
-
- /* Now we know the offset of the first offset/name pair. */
- mem[cnt].set_start = readp + 2 + 2 * len_bytes - startp;
- mem[cnt].address_len = len_bytes;
- size_t max_size = dbg->sectiondata[IDX_debug_pubnames]->d_size;
- if (mem[cnt].set_start >= max_size
- || len - (2 + 2 * len_bytes) > max_size - mem[cnt].set_start)
- /* Something wrong, the first entry is beyond the end of
- the section. Or the length of the whole unit is too big. */
- break;
-
- /* Read the version. It better be two for now. */
- uint16_t version = read_2ubyte_unaligned (dbg, readp);
- if (unlikely (version != 2))
- {
- __libdw_seterrno (DWARF_E_INVALID_VERSION);
- goto err_return;
- }
-
- /* Get the CU offset. */
- if (__libdw_read_offset (dbg, dbg, IDX_debug_pubnames,
- readp + 2, len_bytes,
- &mem[cnt].cu_offset, IDX_debug_info, 3))
- /* Error has been already set in reader. */
- goto err_return;
-
- /* Determine the size of the CU header. */
- unsigned char *infop
- = ((unsigned char *) dbg->sectiondata[IDX_debug_info]->d_buf
- + mem[cnt].cu_offset);
- if (read_4ubyte_unaligned_noncvt (infop) == DWARF3_LENGTH_64_BIT)
- mem[cnt].cu_header_size = 23;
- else
- mem[cnt].cu_header_size = 11;
-
- ++cnt;
-
- /* Advance to the next set. */
- readp += len;
- }
-
- if (mem == NULL || cnt == 0)
- {
- __libdw_seterrno (DWARF_E_NO_ENTRY);
- return -1;
- }
-
- dbg->pubnames_sets = (struct pubnames_s *) realloc (mem, cnt * entsize);
- dbg->pubnames_nsets = cnt;
-
- return 0;
-}
-
-
-ptrdiff_t
-dwarf_getpubnames (dbg, callback, arg, offset)
- Dwarf *dbg;
- int (*callback) (Dwarf *, Dwarf_Global *, void *);
- void *arg;
- ptrdiff_t offset;
-{
- if (dbg == NULL)
- return -1l;
-
- if (unlikely (offset < 0))
- {
- __libdw_seterrno (DWARF_E_INVALID_OFFSET);
- return -1l;
- }
-
- /* Make sure it is a valid offset. */
- if (unlikely (dbg->sectiondata[IDX_debug_pubnames] == NULL
- || ((size_t) offset
- >= dbg->sectiondata[IDX_debug_pubnames]->d_size)))
- /* No (more) entry. */
- return 0;
-
- /* If necessary read the set information. */
- if (dbg->pubnames_nsets == 0 && unlikely (get_offsets (dbg) != 0))
- return -1l;
-
- /* Find the place where to start. */
- size_t cnt;
- if (offset == 0)
- {
- cnt = 0;
- offset = dbg->pubnames_sets[0].set_start;
- }
- else
- {
- for (cnt = 0; cnt + 1 < dbg->pubnames_nsets; ++cnt)
- if ((Dwarf_Off) offset >= dbg->pubnames_sets[cnt].set_start)
- {
- assert ((Dwarf_Off) offset
- < dbg->pubnames_sets[cnt + 1].set_start);
- break;
- }
- assert (cnt + 1 < dbg->pubnames_nsets);
- }
-
- unsigned char *startp
- = (unsigned char *) dbg->sectiondata[IDX_debug_pubnames]->d_buf;
- unsigned char *endp
- = startp + dbg->sectiondata[IDX_debug_pubnames]->d_size;
- unsigned char *readp = startp + offset;
- while (1)
- {
- Dwarf_Global gl;
-
- gl.cu_offset = (dbg->pubnames_sets[cnt].cu_offset
- + dbg->pubnames_sets[cnt].cu_header_size);
-
- while (1)
- {
- /* READP points to the next offset/name pair. */
- if (readp + dbg->pubnames_sets[cnt].address_len > endp)
- goto invalid_dwarf;
- if (dbg->pubnames_sets[cnt].address_len == 4)
- gl.die_offset = read_4ubyte_unaligned_inc (dbg, readp);
- else
- gl.die_offset = read_8ubyte_unaligned_inc (dbg, readp);
-
- /* If the offset is zero we reached the end of the set. */
- if (gl.die_offset == 0)
- break;
-
- /* Add the CU offset. */
- gl.die_offset += dbg->pubnames_sets[cnt].cu_offset;
-
- gl.name = (char *) readp;
- readp = (unsigned char *) memchr (gl.name, '\0', endp - readp);
- if (unlikely (readp == NULL))
- {
- invalid_dwarf:
- __libdw_seterrno (DWARF_E_INVALID_DWARF);
- return -1l;
- }
- readp++;
-
- /* We found name and DIE offset. Report it. */
- if (callback (dbg, &gl, arg) != DWARF_CB_OK)
- {
- /* The user wants us to stop. Return the offset of the
- next entry. */
- return readp - startp;
- }
- }
-
- if (++cnt == dbg->pubnames_nsets)
- /* This was the last set. */
- break;
-
- startp = (unsigned char *) dbg->sectiondata[IDX_debug_pubnames]->d_buf;
- readp = startp + dbg->pubnames_sets[cnt].set_start;
- }
-
- /* We are done. No more entries. */
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-23 01:08:50 +0000