glibc-based interface. Unfortunately, the glibc maintainers, despite knowing the existence of the FreeBSD qsort_r(3) interface in 2004 and refused to add the same interface to glibc based on grounds of the lack of standardization and portability concerns, has decided it was a good idea to introduce their own qsort_r(3) interface in 2007 as a GNU extension with a slightly different and incompatible interface. With the adoption of their interface as POSIX standard, let's switch to the same prototype, there is no need to remain incompatible. C++ and C applications written for the historical FreeBSD interface get source level compatibility when building in C++ mode, or when building with a C compiler with C11 generics support, provided that the caller passes a fifth parameter of qsort_r() that exactly matches the historical FreeBSD comparator function pointer type and does not redefine the historical qsort_r(3) prototype in their source code. Symbol versioning is used to keep old binaries working. MFC: never Relnotes: yes Reviewed by: cem, imp, hps, pauamma Differential revision: https://reviews.freebsd.org/D17083
718 lines
17 KiB
C
718 lines
17 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2016-2017 Mark Johnston <markj@FreeBSD.org>
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* Copyright (c) 2010 The FreeBSD Foundation
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* Copyright (c) 2008 John Birrell (jb@freebsd.org)
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* All rights reserved.
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*
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* Portions of this software were developed by Rui Paulo under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#ifndef NO_CTF
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#include <sys/ctf.h>
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#include <sys/ctf_api.h>
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#endif
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#include <sys/user.h>
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#include <assert.h>
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#include <err.h>
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#include <fcntl.h>
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#include <libgen.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#ifndef NO_CTF
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#include <libctf.h>
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#endif
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#include <libutil.h>
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#include <zlib.h>
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#include "_libproc.h"
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#define PATH_DEBUG_DIR "/usr/lib/debug"
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#ifdef NO_CTF
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typedef struct ctf_file ctf_file_t;
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#endif
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#ifndef NO_CXA_DEMANGLE
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extern char *__cxa_demangle(const char *, char *, size_t *, int *);
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#endif /* NO_CXA_DEMANGLE */
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static int
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crc32_file(int fd, uint32_t *crc)
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{
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char buf[MAXPHYS];
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ssize_t nr;
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*crc = crc32(0L, Z_NULL, 0);
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while ((nr = read(fd, buf, sizeof(buf))) > 0) {
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*crc = crc32(*crc, (char *)buf, nr);
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}
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return (!!nr);
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}
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static void
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demangle(const char *symbol, char *buf, size_t len)
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{
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#ifndef NO_CXA_DEMANGLE
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char *dembuf;
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if (symbol[0] == '_' && symbol[1] == 'Z' && symbol[2]) {
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dembuf = __cxa_demangle(symbol, NULL, NULL, NULL);
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if (!dembuf)
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goto fail;
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strlcpy(buf, dembuf, len);
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free(dembuf);
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return;
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}
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fail:
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#endif /* NO_CXA_DEMANGLE */
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strlcpy(buf, symbol, len);
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}
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struct symsort_thunk {
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Elf *e;
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struct symtab *symtab;
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};
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static int
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symvalcmp(const void *a1, const void *a2, void *_thunk)
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{
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GElf_Sym sym1, sym2;
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struct symsort_thunk *thunk;
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const char *s1, *s2;
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u_int i1, i2;
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int bind1, bind2;
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i1 = *(const u_int *)a1;
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i2 = *(const u_int *)a2;
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thunk = _thunk;
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(void)gelf_getsym(thunk->symtab->data, i1, &sym1);
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(void)gelf_getsym(thunk->symtab->data, i2, &sym2);
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if (sym1.st_value != sym2.st_value)
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return (sym1.st_value < sym2.st_value ? -1 : 1);
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/* Prefer non-local symbols. */
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bind1 = GELF_ST_BIND(sym1.st_info);
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bind2 = GELF_ST_BIND(sym2.st_info);
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if (bind1 != bind2) {
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if (bind1 == STB_LOCAL && bind2 != STB_LOCAL)
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return (-1);
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if (bind1 != STB_LOCAL && bind2 == STB_LOCAL)
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return (1);
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}
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s1 = elf_strptr(thunk->e, thunk->symtab->stridx, sym1.st_name);
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s2 = elf_strptr(thunk->e, thunk->symtab->stridx, sym2.st_name);
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if (s1 != NULL && s2 != NULL) {
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/* Prefer symbols without a leading '$'. */
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if (*s1 == '$')
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return (-1);
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if (*s2 == '$')
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return (1);
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/* Prefer symbols with fewer leading underscores. */
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for (; *s1 == '_' && *s2 == '_'; s1++, s2++)
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;
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if (*s1 == '_')
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return (-1);
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if (*s2 == '_')
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return (1);
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}
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return (0);
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}
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static int
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load_symtab(Elf *e, struct symtab *symtab, u_long sh_type)
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{
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GElf_Ehdr ehdr;
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GElf_Shdr shdr;
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struct symsort_thunk thunk;
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Elf_Scn *scn;
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u_int nsyms;
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if (gelf_getehdr(e, &ehdr) == NULL)
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return (-1);
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scn = NULL;
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while ((scn = elf_nextscn(e, scn)) != NULL) {
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(void)gelf_getshdr(scn, &shdr);
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if (shdr.sh_type == sh_type)
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break;
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}
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if (scn == NULL)
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return (-1);
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nsyms = shdr.sh_size / shdr.sh_entsize;
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if (nsyms > (1 << 20))
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return (-1);
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if ((symtab->data = elf_getdata(scn, NULL)) == NULL)
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return (-1);
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symtab->index = calloc(nsyms, sizeof(u_int));
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if (symtab->index == NULL)
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return (-1);
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for (u_int i = 0; i < nsyms; i++)
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symtab->index[i] = i;
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symtab->nsyms = nsyms;
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symtab->stridx = shdr.sh_link;
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thunk.e = e;
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thunk.symtab = symtab;
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qsort_r(symtab->index, nsyms, sizeof(u_int), symvalcmp, &thunk);
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return (0);
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}
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static void
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load_symtabs(struct file_info *file)
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{
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file->symtab.nsyms = file->dynsymtab.nsyms = 0;
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(void)load_symtab(file->elf, &file->symtab, SHT_SYMTAB);
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(void)load_symtab(file->elf, &file->dynsymtab, SHT_DYNSYM);
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}
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static int
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open_debug_file(char *path, const char *debugfile, uint32_t crc)
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{
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size_t n;
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uint32_t compcrc;
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int fd;
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fd = -1;
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if ((n = strlcat(path, "/", PATH_MAX)) >= PATH_MAX)
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return (fd);
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if (strlcat(path, debugfile, PATH_MAX) >= PATH_MAX)
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goto out;
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if ((fd = open(path, O_RDONLY | O_CLOEXEC)) < 0)
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goto out;
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if (crc32_file(fd, &compcrc) != 0 || crc != compcrc) {
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DPRINTFX("ERROR: CRC32 mismatch for %s", path);
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(void)close(fd);
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fd = -1;
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}
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out:
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path[n] = '\0';
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return (fd);
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}
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/*
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* Obtain an ELF descriptor for the specified mapped object. If a GNU debuglink
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* section is present, a descriptor for the corresponding debug file is
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* returned.
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*/
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static int
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open_object(struct map_info *mapping)
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{
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char path[PATH_MAX];
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GElf_Shdr shdr;
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Elf *e, *e2;
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Elf_Data *data;
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Elf_Scn *scn;
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struct file_info *file;
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prmap_t *map;
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const char *debugfile, *scnname;
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size_t ndx;
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uint32_t crc;
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int fd, fd2;
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if (mapping->map.pr_mapname[0] == '\0')
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return (-1); /* anonymous object */
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if (mapping->file->elf != NULL)
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return (0); /* already loaded */
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file = mapping->file;
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map = &mapping->map;
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if ((fd = open(map->pr_mapname, O_RDONLY | O_CLOEXEC)) < 0) {
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DPRINTF("ERROR: open %s failed", map->pr_mapname);
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return (-1);
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}
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if ((e = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
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DPRINTFX("ERROR: elf_begin() failed: %s", elf_errmsg(-1));
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goto err;
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}
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if (gelf_getehdr(e, &file->ehdr) != &file->ehdr) {
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DPRINTFX("ERROR: elf_getehdr() failed: %s", elf_errmsg(-1));
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goto err;
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}
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scn = NULL;
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while ((scn = elf_nextscn(e, scn)) != NULL) {
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if (gelf_getshdr(scn, &shdr) != &shdr) {
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DPRINTFX("ERROR: gelf_getshdr failed: %s",
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elf_errmsg(-1));
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goto err;
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}
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if (shdr.sh_type != SHT_PROGBITS)
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continue;
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if (elf_getshdrstrndx(e, &ndx) != 0) {
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DPRINTFX("ERROR: elf_getshdrstrndx failed: %s",
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elf_errmsg(-1));
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goto err;
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}
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if ((scnname = elf_strptr(e, ndx, shdr.sh_name)) == NULL)
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continue;
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if (strcmp(scnname, ".gnu_debuglink") == 0)
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break;
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}
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if (scn == NULL)
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goto internal;
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if ((data = elf_getdata(scn, NULL)) == NULL) {
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DPRINTFX("ERROR: elf_getdata failed: %s", elf_errmsg(-1));
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goto err;
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}
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/*
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* The data contains a null-terminated file name followed by a 4-byte
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* CRC.
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*/
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if (data->d_size < sizeof(crc) + 1) {
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DPRINTFX("ERROR: debuglink section is too small (%zd bytes)",
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(ssize_t)data->d_size);
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goto internal;
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|
}
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if (strnlen(data->d_buf, data->d_size) >= data->d_size - sizeof(crc)) {
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DPRINTFX("ERROR: no null-terminator in gnu_debuglink section");
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goto internal;
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}
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debugfile = data->d_buf;
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memcpy(&crc, (char *)data->d_buf + data->d_size - sizeof(crc),
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sizeof(crc));
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/*
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|
* Search for the debug file using the algorithm described in the gdb
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|
* documentation:
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* - look in the directory containing the object,
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* - look in the subdirectory ".debug" of the directory containing the
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|
* object,
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* - look in the global debug directories (currently /usr/lib/debug).
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*/
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(void)strlcpy(path, map->pr_mapname, sizeof(path));
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(void)dirname(path);
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if ((fd2 = open_debug_file(path, debugfile, crc)) >= 0)
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goto external;
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if (strlcat(path, "/.debug", sizeof(path)) < sizeof(path) &&
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(fd2 = open_debug_file(path, debugfile, crc)) >= 0)
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goto external;
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(void)snprintf(path, sizeof(path), PATH_DEBUG_DIR);
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if (strlcat(path, map->pr_mapname, sizeof(path)) < sizeof(path)) {
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(void)dirname(path);
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if ((fd2 = open_debug_file(path, debugfile, crc)) >= 0)
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goto external;
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}
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|
internal:
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|
/* We didn't find a debug file, just return the object's descriptor. */
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file->elf = e;
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file->fd = fd;
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load_symtabs(file);
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return (0);
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|
external:
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if ((e2 = elf_begin(fd2, ELF_C_READ, NULL)) == NULL) {
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DPRINTFX("ERROR: elf_begin failed: %s", elf_errmsg(-1));
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(void)close(fd2);
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|
goto err;
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}
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(void)elf_end(e);
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|
(void)close(fd);
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|
file->elf = e2;
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file->fd = fd2;
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load_symtabs(file);
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return (0);
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|
err:
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|
if (e != NULL)
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(void)elf_end(e);
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(void)close(fd);
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|
return (-1);
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}
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char *
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proc_objname(struct proc_handle *p, uintptr_t addr, char *objname,
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size_t objnamesz)
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{
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prmap_t *map;
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|
size_t i;
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|
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|
if (p->nmappings == 0)
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|
if (proc_rdagent(p) == NULL)
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|
return (NULL);
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|
for (i = 0; i < p->nmappings; i++) {
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|
map = &p->mappings[i].map;
|
|
if (addr >= map->pr_vaddr &&
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|
addr < map->pr_vaddr + map->pr_size) {
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|
strlcpy(objname, map->pr_mapname, objnamesz);
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|
return (objname);
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|
}
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|
}
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|
return (NULL);
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|
}
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|
|
int
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|
proc_iter_objs(struct proc_handle *p, proc_map_f *func, void *cd)
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|
{
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|
char last[MAXPATHLEN], path[MAXPATHLEN], *base;
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|
prmap_t *map;
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|
size_t i;
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|
int error;
|
|
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|
if (p->nmappings == 0)
|
|
if (proc_rdagent(p) == NULL)
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|
return (-1);
|
|
|
|
error = 0;
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|
memset(last, 0, sizeof(last));
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|
for (i = 0; i < p->nmappings; i++) {
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|
map = &p->mappings[i].map;
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|
strlcpy(path, map->pr_mapname, sizeof(path));
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|
base = basename(path);
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|
/*
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|
* We shouldn't call the callback twice with the same object.
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|
* To do that we are assuming the fact that if there are
|
|
* repeated object names (i.e. different mappings for the
|
|
* same object) they occur next to each other.
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|
*/
|
|
if (strcmp(base, last) == 0)
|
|
continue;
|
|
if ((error = (*func)(cd, map, base)) != 0)
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|
break;
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|
strlcpy(last, path, sizeof(last));
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|
}
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|
return (error);
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|
}
|
|
|
|
static struct map_info *
|
|
_proc_addr2map(struct proc_handle *p, uintptr_t addr)
|
|
{
|
|
struct map_info *mapping;
|
|
size_t i;
|
|
|
|
if (p->nmappings == 0)
|
|
if (proc_rdagent(p) == NULL)
|
|
return (NULL);
|
|
for (i = 0; i < p->nmappings; i++) {
|
|
mapping = &p->mappings[i];
|
|
if (addr >= mapping->map.pr_vaddr &&
|
|
addr < mapping->map.pr_vaddr + mapping->map.pr_size)
|
|
return (mapping);
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|
}
|
|
return (NULL);
|
|
}
|
|
|
|
prmap_t *
|
|
proc_addr2map(struct proc_handle *p, uintptr_t addr)
|
|
{
|
|
|
|
return (&_proc_addr2map(p, addr)->map);
|
|
}
|
|
|
|
/*
|
|
* Look up the symbol at addr using a binary search, returning a copy of the
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|
* symbol and its name.
|
|
*/
|
|
static int
|
|
lookup_symbol_by_addr(Elf *e, struct symtab *symtab, uintptr_t addr,
|
|
const char **namep, GElf_Sym *symp)
|
|
{
|
|
GElf_Sym sym;
|
|
Elf_Data *data;
|
|
const char *s;
|
|
u_int i, min, max, mid;
|
|
|
|
if (symtab->nsyms == 0)
|
|
return (ENOENT);
|
|
|
|
data = symtab->data;
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|
min = 0;
|
|
max = symtab->nsyms - 1;
|
|
|
|
while (min <= max) {
|
|
mid = (max + min) / 2;
|
|
(void)gelf_getsym(data, symtab->index[mid], &sym);
|
|
if (addr >= sym.st_value && addr < sym.st_value + sym.st_size)
|
|
break;
|
|
|
|
if (addr < sym.st_value)
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|
max = mid - 1;
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|
else
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|
min = mid + 1;
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|
}
|
|
if (min > max)
|
|
return (ENOENT);
|
|
|
|
/*
|
|
* Advance until we find the matching symbol with largest index.
|
|
*/
|
|
for (i = mid; i < symtab->nsyms; i++) {
|
|
(void)gelf_getsym(data, symtab->index[i], &sym);
|
|
if (addr < sym.st_value || addr >= sym.st_value + sym.st_size)
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|
break;
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|
}
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|
(void)gelf_getsym(data, symtab->index[i - 1], symp);
|
|
s = elf_strptr(e, symtab->stridx, symp->st_name);
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|
if (s != NULL && namep != NULL)
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|
*namep = s;
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|
return (0);
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|
}
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int
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proc_addr2sym(struct proc_handle *p, uintptr_t addr, char *name,
|
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size_t namesz, GElf_Sym *symcopy)
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{
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struct file_info *file;
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struct map_info *mapping;
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const char *s;
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uintptr_t off;
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int error;
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if ((mapping = _proc_addr2map(p, addr)) == NULL) {
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DPRINTFX("ERROR: proc_addr2map failed to resolve 0x%jx", (uintmax_t)addr);
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return (-1);
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}
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if (open_object(mapping) != 0) {
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DPRINTFX("ERROR: failed to open object %s",
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mapping->map.pr_mapname);
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return (-1);
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}
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file = mapping->file;
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off = file->ehdr.e_type == ET_DYN ?
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mapping->map.pr_vaddr - mapping->map.pr_offset : 0;
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if (addr < off)
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return (ENOENT);
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addr -= off;
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error = lookup_symbol_by_addr(file->elf, &file->dynsymtab, addr, &s,
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symcopy);
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if (error == ENOENT)
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error = lookup_symbol_by_addr(file->elf, &file->symtab, addr,
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&s, symcopy);
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if (error == 0) {
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symcopy->st_value += off;
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demangle(s, name, namesz);
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}
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return (error);
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}
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|
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static struct map_info *
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_proc_name2map(struct proc_handle *p, const char *name)
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{
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char path[MAXPATHLEN], *base;
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struct map_info *mapping;
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size_t i, len;
|
|
|
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if ((len = strlen(name)) == 0)
|
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return (NULL);
|
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if (p->nmappings == 0)
|
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if (proc_rdagent(p) == NULL)
|
|
return (NULL);
|
|
for (i = 0; i < p->nmappings; i++) {
|
|
mapping = &p->mappings[i];
|
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(void)strlcpy(path, mapping->map.pr_mapname, sizeof(path));
|
|
base = basename(path);
|
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if (strcmp(base, name) == 0)
|
|
return (mapping);
|
|
}
|
|
/* If we didn't find a match, try matching prefixes of the basename. */
|
|
for (i = 0; i < p->nmappings; i++) {
|
|
mapping = &p->mappings[i];
|
|
strlcpy(path, mapping->map.pr_mapname, sizeof(path));
|
|
base = basename(path);
|
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if (strncmp(base, name, len) == 0)
|
|
return (mapping);
|
|
}
|
|
if (strcmp(name, "a.out") == 0)
|
|
return (_proc_addr2map(p,
|
|
p->mappings[p->exec_map].map.pr_vaddr));
|
|
return (NULL);
|
|
}
|
|
|
|
prmap_t *
|
|
proc_name2map(struct proc_handle *p, const char *name)
|
|
{
|
|
|
|
return (&_proc_name2map(p, name)->map);
|
|
}
|
|
|
|
/*
|
|
* Look up the symbol with the given name and return a copy of it.
|
|
*/
|
|
static int
|
|
lookup_symbol_by_name(Elf *elf, struct symtab *symtab, const char *symbol,
|
|
GElf_Sym *symcopy, prsyminfo_t *si)
|
|
{
|
|
GElf_Sym sym;
|
|
Elf_Data *data;
|
|
char *s;
|
|
int i;
|
|
|
|
if (symtab->nsyms == 0)
|
|
return (ENOENT);
|
|
data = symtab->data;
|
|
for (i = 0; gelf_getsym(data, i, &sym) != NULL; i++) {
|
|
s = elf_strptr(elf, symtab->stridx, sym.st_name);
|
|
if (s != NULL && strcmp(s, symbol) == 0) {
|
|
memcpy(symcopy, &sym, sizeof(*symcopy));
|
|
if (si != NULL)
|
|
si->prs_id = i;
|
|
return (0);
|
|
}
|
|
}
|
|
return (ENOENT);
|
|
}
|
|
|
|
int
|
|
proc_name2sym(struct proc_handle *p, const char *object, const char *symbol,
|
|
GElf_Sym *symcopy, prsyminfo_t *si)
|
|
{
|
|
struct file_info *file;
|
|
struct map_info *mapping;
|
|
uintptr_t off;
|
|
int error;
|
|
|
|
if ((mapping = _proc_name2map(p, object)) == NULL) {
|
|
DPRINTFX("ERROR: proc_name2map failed to resolve %s", object);
|
|
return (-1);
|
|
}
|
|
if (open_object(mapping) != 0) {
|
|
DPRINTFX("ERROR: failed to open object %s",
|
|
mapping->map.pr_mapname);
|
|
return (-1);
|
|
}
|
|
|
|
file = mapping->file;
|
|
off = file->ehdr.e_type == ET_DYN ?
|
|
mapping->map.pr_vaddr - mapping->map.pr_offset : 0;
|
|
|
|
error = lookup_symbol_by_name(file->elf, &file->dynsymtab, symbol,
|
|
symcopy, si);
|
|
if (error == ENOENT)
|
|
error = lookup_symbol_by_name(file->elf, &file->symtab, symbol,
|
|
symcopy, si);
|
|
if (error == 0)
|
|
symcopy->st_value += off;
|
|
return (error);
|
|
}
|
|
|
|
ctf_file_t *
|
|
proc_name2ctf(struct proc_handle *p, const char *name)
|
|
{
|
|
#ifndef NO_CTF
|
|
ctf_file_t *ctf;
|
|
prmap_t *map;
|
|
int error;
|
|
|
|
if ((map = proc_name2map(p, name)) == NULL)
|
|
return (NULL);
|
|
|
|
ctf = ctf_open(map->pr_mapname, &error);
|
|
return (ctf);
|
|
#else
|
|
(void)p;
|
|
(void)name;
|
|
return (NULL);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
proc_iter_symbyaddr(struct proc_handle *p, const char *object, int which,
|
|
int mask, proc_sym_f *func, void *cd)
|
|
{
|
|
GElf_Sym sym;
|
|
struct file_info *file;
|
|
struct map_info *mapping;
|
|
struct symtab *symtab;
|
|
const char *s;
|
|
int error, i;
|
|
|
|
if ((mapping = _proc_name2map(p, object)) == NULL) {
|
|
DPRINTFX("ERROR: proc_name2map failed to resolve %s", object);
|
|
return (-1);
|
|
}
|
|
if (open_object(mapping) != 0) {
|
|
DPRINTFX("ERROR: failed to open object %s",
|
|
mapping->map.pr_mapname);
|
|
return (-1);
|
|
}
|
|
|
|
file = mapping->file;
|
|
symtab = which == PR_SYMTAB ? &file->symtab : &file->dynsymtab;
|
|
if (symtab->nsyms == 0)
|
|
return (-1);
|
|
|
|
error = 0;
|
|
for (i = 0; gelf_getsym(symtab->data, i, &sym) != NULL; i++) {
|
|
if (GELF_ST_BIND(sym.st_info) == STB_LOCAL &&
|
|
(mask & BIND_LOCAL) == 0)
|
|
continue;
|
|
if (GELF_ST_BIND(sym.st_info) == STB_GLOBAL &&
|
|
(mask & BIND_GLOBAL) == 0)
|
|
continue;
|
|
if (GELF_ST_BIND(sym.st_info) == STB_WEAK &&
|
|
(mask & BIND_WEAK) == 0)
|
|
continue;
|
|
if (GELF_ST_TYPE(sym.st_info) == STT_NOTYPE &&
|
|
(mask & TYPE_NOTYPE) == 0)
|
|
continue;
|
|
if (GELF_ST_TYPE(sym.st_info) == STT_OBJECT &&
|
|
(mask & TYPE_OBJECT) == 0)
|
|
continue;
|
|
if (GELF_ST_TYPE(sym.st_info) == STT_FUNC &&
|
|
(mask & TYPE_FUNC) == 0)
|
|
continue;
|
|
if (GELF_ST_TYPE(sym.st_info) == STT_SECTION &&
|
|
(mask & TYPE_SECTION) == 0)
|
|
continue;
|
|
if (GELF_ST_TYPE(sym.st_info) == STT_FILE &&
|
|
(mask & TYPE_FILE) == 0)
|
|
continue;
|
|
s = elf_strptr(file->elf, symtab->stridx, sym.st_name);
|
|
if (file->ehdr.e_type == ET_DYN)
|
|
sym.st_value += mapping->map.pr_vaddr;
|
|
if ((error = (*func)(cd, &sym, s)) != 0)
|
|
break;
|
|
}
|
|
return (error);
|
|
}
|