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Diffstat (limited to 'src/libebl/eblobjnote.c')
| -rw-r--r-- | src/libebl/eblobjnote.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/src/libebl/eblobjnote.c b/src/libebl/eblobjnote.c new file mode 100644 index 00000000..ec5bb7da --- /dev/null +++ b/src/libebl/eblobjnote.c @@ -0,0 +1,241 @@ +/* Print contents of object file note. + Copyright (C) 2002, 2007, 2009, 2011 Red Hat, Inc. + This file is part of Red Hat elfutils. + Written by Ulrich Drepper <drepper@redhat.com>, 2002. + + Red Hat elfutils 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; version 2 of the License. + + Red Hat 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 Red Hat elfutils; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. + + In addition, as a special exception, Red Hat, Inc. gives You the + additional right to link the code of Red Hat elfutils with code licensed + under any Open Source Initiative certified open source license + (http://www.opensource.org/licenses/index.php) which requires the + distribution of source code with any binary distribution and to + distribute linked combinations of the two. Non-GPL Code permitted under + this exception must only link to the code of Red Hat elfutils through + those well defined interfaces identified in the file named EXCEPTION + found in the source code files (the "Approved Interfaces"). The files + of Non-GPL Code may instantiate templates or use macros or inline + functions from the Approved Interfaces without causing the resulting + work to be covered by the GNU General Public License. Only Red Hat, + Inc. may make changes or additions to the list of Approved Interfaces. + Red Hat's grant of this exception is conditioned upon your not adding + any new exceptions. If you wish to add a new Approved Interface or + exception, please contact Red Hat. You must obey the GNU General Public + License in all respects for all of the Red Hat elfutils code and other + code used in conjunction with Red Hat elfutils except the Non-GPL Code + covered by this exception. If you modify this file, you may extend this + exception to your version of the file, but you are not obligated to do + so. If you do not wish to provide this exception without modification, + you must delete this exception statement from your version and license + this file solely under the GPL without exception. + + Red Hat elfutils is an included package of the Open Invention Network. + An included package of the Open Invention Network is a package for which + Open Invention Network licensees cross-license their patents. No patent + license is granted, either expressly or impliedly, by designation as an + included package. Should you wish to participate in the Open Invention + Network licensing program, please visit www.openinventionnetwork.com + <http://www.openinventionnetwork.com>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <inttypes.h> +#include <stdio.h> +#include <string.h> +#include <libeblP.h> + + +void +ebl_object_note (ebl, name, type, descsz, desc) + Ebl *ebl; + const char *name; + uint32_t type; + uint32_t descsz; + const char *desc; +{ + if (! ebl->object_note (name, type, descsz, desc)) + /* The machine specific function did not know this type. */ + + if (strcmp ("stapsdt", name) == 0) + { + if (type != 3) + { + printf (gettext ("unknown SDT version %u\n"), type); + return; + } + + /* Descriptor starts with three addresses, pc, base ref and + semaphore. Then three zero terminated strings provider, + name and arguments. */ + + union + { + Elf64_Addr a64[3]; + Elf32_Addr a32[3]; + } addrs; + + size_t addrs_size = gelf_fsize (ebl->elf, ELF_T_ADDR, 3, EV_CURRENT); + if (descsz < addrs_size + 3) + { + invalid_sdt: + printf (gettext ("invalid SDT probe descriptor\n")); + return; + } + + Elf_Data src = + { + .d_type = ELF_T_ADDR, .d_version = EV_CURRENT, + .d_buf = (void *) desc, .d_size = addrs_size + }; + + Elf_Data dst = + { + .d_type = ELF_T_ADDR, .d_version = EV_CURRENT, + .d_buf = &addrs, .d_size = addrs_size + }; + + if (gelf_xlatetom (ebl->elf, &dst, &src, + elf_getident (ebl->elf, NULL)[EI_DATA]) == NULL) + { + printf ("%s\n", elf_errmsg (-1)); + return; + } + + const char *provider = desc + addrs_size; + const char *pname = memchr (provider, '\0', desc + descsz - provider); + if (pname == NULL) + goto invalid_sdt; + + ++pname; + const char *args = memchr (pname, '\0', desc + descsz - pname); + if (args == NULL || + memchr (++args, '\0', desc + descsz - pname) != desc + descsz - 1) + goto invalid_sdt; + + GElf_Addr pc; + GElf_Addr base; + GElf_Addr sem; + if (gelf_getclass (ebl->elf) == ELFCLASS32) + { + pc = addrs.a32[0]; + base = addrs.a32[1]; + sem = addrs.a32[2]; + } + else + { + pc = addrs.a64[0]; + base = addrs.a64[1]; + sem = addrs.a64[2]; + } + + printf (gettext (" PC: ")); + printf ("%#" PRIx64 ",", pc); + printf (gettext (" Base: ")); + printf ("%#" PRIx64 ",", base); + printf (gettext (" Semaphore: ")); + printf ("%#" PRIx64 "\n", sem); + printf (gettext (" Provider: ")); + printf ("%s,", provider); + printf (gettext (" Name: ")); + printf ("%s,", pname); + printf (gettext (" Args: ")); + printf ("'%s'\n", args); + return; + } + + switch (type) + { + case NT_GNU_BUILD_ID: + if (strcmp (name, "GNU") == 0 && descsz > 0) + { + printf (gettext (" Build ID: ")); + uint_fast32_t i; + for (i = 0; i < descsz - 1; ++i) + printf ("%02" PRIx8, (uint8_t) desc[i]); + printf ("%02" PRIx8 "\n", (uint8_t) desc[i]); + } + break; + + case NT_GNU_GOLD_VERSION: + if (strcmp (name, "GNU") == 0 && descsz > 0) + /* A non-null terminated version string. */ + printf (gettext (" Linker version: %.*s\n"), + (int) descsz, desc); + break; + + case NT_GNU_ABI_TAG: + if (strcmp (name, "GNU") == 0 && descsz >= 8 && descsz % 4 == 0) + { + Elf_Data in = + { + .d_version = EV_CURRENT, + .d_type = ELF_T_WORD, + .d_size = descsz, + .d_buf = (void *) desc + }; + uint32_t buf[descsz / 4]; + Elf_Data out = + { + .d_version = EV_CURRENT, + .d_type = ELF_T_WORD, + .d_size = descsz, + .d_buf = buf + }; + + if (elf32_xlatetom (&out, &in, ebl->data) != NULL) + { + const char *os; + switch (buf[0]) + { + case ELF_NOTE_OS_LINUX: + os = "Linux"; + break; + + case ELF_NOTE_OS_GNU: + os = "GNU"; + break; + + case ELF_NOTE_OS_SOLARIS2: + os = "Solaris"; + break; + + case ELF_NOTE_OS_FREEBSD: + os = "FreeBSD"; + break; + + default: + os = "???"; + break; + } + + printf (gettext (" OS: %s, ABI: "), os); + for (size_t cnt = 1; cnt < descsz / 4; ++cnt) + { + if (cnt > 1) + putchar_unlocked ('.'); + printf ("%" PRIu32, buf[cnt]); + } + putchar_unlocked ('\n'); + } + break; + } + /* FALLTHROUGH */ + + default: + /* Unknown type. */ + break; + } +} |