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author | Chih-hung Hsieh <chh@google.com> | 2015-09-25 14:51:48 +0000 |
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committer | Gerrit Code Review <noreply-gerritcodereview@google.com> | 2015-09-25 14:51:48 +0000 |
commit | b0121c5547604527aaeea297b54047cd14b234df (patch) | |
tree | 7d9031ee3d5796de4a1825892fc6e04ba6e36ae2 /libebl/eblobjnote.c | |
parent | d03895cf5f8b77c6a85abcd84ea0d80ff56be846 (diff) | |
parent | 5eafdf0f9bfd9a3c5f93414ac16bb399b6da0b7f (diff) | |
download | android_external_elfutils-b0121c5547604527aaeea297b54047cd14b234df.tar.gz android_external_elfutils-b0121c5547604527aaeea297b54047cd14b234df.tar.bz2 android_external_elfutils-b0121c5547604527aaeea297b54047cd14b234df.zip |
Merge "Move files up to match upstream source structure."
Diffstat (limited to 'libebl/eblobjnote.c')
-rw-r--r-- | libebl/eblobjnote.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/libebl/eblobjnote.c b/libebl/eblobjnote.c new file mode 100644 index 00000000..d1fe8210 --- /dev/null +++ b/libebl/eblobjnote.c @@ -0,0 +1,220 @@ +/* Print contents of object file note. + Copyright (C) 2002, 2007, 2009, 2011 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 <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; + } +} |