ld.so: Implement the --list-diagnostics option

1 files changed, 46 insertions, 0 deletions

diff --git a/elf/dl-diagnostics.h b/elf/dl-diagnostics.h
new file mode 100644
index 0000000000..27dcb12bca
--- /dev/null
+++ b/elf/dl-diagnostics.h
@@ -0,0 +1,46 @@
+/* Interfaces for printing diagnostics in ld.so.
+   Copyright (C) 2021 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _DL_DIAGNOSTICS_H
+#define _DL_DIAGNOSTICS_H
+
+#include <stdint.h>
+
+/* Write the null-terminated string to standard output, surrounded in
+   quotation marks.  */
+void _dl_diagnostics_print_string (const char *s) attribute_hidden;
+
+/* Like _dl_diagnostics_print_string, but add a LABEL= prefix, and a
+   newline character as a suffix.  */
+void _dl_diagnostics_print_labeled_string (const char *label, const char *s)
+  attribute_hidden;
+
+/* Print LABEL=VALUE to standard output, followed by a newline
+   character.  */
+void _dl_diagnostics_print_labeled_value (const char *label, uint64_t value)
+  attribute_hidden;
+
+/* Print diagnostics data for the kernel.  Called from
+   _dl_print_diagnostics.  */
+void _dl_diagnostics_kernel (void) attribute_hidden;
+
+/* Print diagnostics data for the CPU(s).  Called from
+   _dl_print_diagnostics.  */
+void _dl_diagnostics_cpu (void) attribute_hidden;
+
+#endif /* _DL_DIAGNOSTICS_H */