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81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/* Print kernel diagnostics data in ld.so. Linux version.
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Copyright (C) 2021-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <dl-diagnostics.h>
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#include <ldsodefs.h>
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#include <sys/utsname.h>
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/* Dump the auxiliary vector to standard output. */
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static void
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print_auxv (void)
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{
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/* See _dl_show_auxv. The code below follows the general output
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format for diagnostic dumps. */
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unsigned int index = 0;
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for (ElfW(auxv_t) *av = GLRO(dl_auxv); av->a_type != AT_NULL; ++av)
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{
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_dl_printf ("auxv[0x%x].a_type=0x%lx\n"
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"auxv[0x%x].a_val",
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index, (unsigned long int) av->a_type, index);
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if (av->a_type == AT_EXECFN
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|| av->a_type == AT_PLATFORM
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|| av->a_type == AT_BASE_PLATFORM)
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{
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/* The address of the strings is not useful at all, so print
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the strings themselves. */
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_dl_printf ("_string=");
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_dl_diagnostics_print_string ((const char *) av->a_un.a_val);
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}
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else
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_dl_printf ("=0x%lx", (unsigned long int) av->a_un.a_val);
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_dl_printf ("\n");
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++index;
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}
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}
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/* Print one uname entry. */
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static void
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print_utsname_entry (const char *field, const char *value)
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{
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_dl_printf ("uname.");
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_dl_diagnostics_print_labeled_string (field, value);
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}
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/* Print information from uname, including the kernel version. */
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static void
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print_uname (void)
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{
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struct utsname uts;
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if (__uname (&uts) == 0)
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{
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print_utsname_entry ("sysname", uts.sysname);
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print_utsname_entry ("nodename", uts.nodename);
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print_utsname_entry ("release", uts.release);
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print_utsname_entry ("version", uts.version);
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print_utsname_entry ("machine", uts.machine);
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print_utsname_entry ("domainname", uts.domainname);
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}
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}
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void
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_dl_diagnostics_kernel (void)
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{
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print_auxv ();
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print_uname ();
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}
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