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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2021-07-22 18:02:42 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2021-12-28 08:40:38 -0300
commit8c0664e2b861fd3789602cc0b0b1922b0e20cb3a (patch)
tree8c6812231676fd89e69282941d0a59a2087a0ed1 /sysdeps/generic
parenteff687e8462b0eaf65992a6031b54a4b1cd16796 (diff)
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elf: Add _dl_audit_pltexit
It consolidates the code required to call la_pltexit audit
callback.

Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
Diffstat (limited to 'sysdeps/generic')
-rw-r--r--sysdeps/generic/dl-fixup-attribute.h24
-rw-r--r--sysdeps/generic/dl-machine-rel.h2
-rw-r--r--sysdeps/generic/ldsodefs.h6
3 files changed, 32 insertions, 0 deletions
diff --git a/sysdeps/generic/dl-fixup-attribute.h b/sysdeps/generic/dl-fixup-attribute.h
new file mode 100644
index 0000000000..aa92169b70
--- /dev/null
+++ b/sysdeps/generic/dl-fixup-attribute.h
@@ -0,0 +1,24 @@
+/* ABI specifics for lazy resolution functions.
+   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_FIXUP_ATTRIBUTE_H
+#define _DL_FIXUP_ATTRIBUTE_H
+
+#define DL_ARCH_FIXUP_ATTRIBUTE
+
+#endif
diff --git a/sysdeps/generic/dl-machine-rel.h b/sysdeps/generic/dl-machine-rel.h
index 9167a1dffc..9d5b7bb749 100644
--- a/sysdeps/generic/dl-machine-rel.h
+++ b/sysdeps/generic/dl-machine-rel.h
@@ -23,5 +23,7 @@
 #define ELF_MACHINE_NO_REL 1
 /* Defined if the architecture supports Elf{32,64}_Rela relocations.  */
 #define ELF_MACHINE_NO_RELA 0
+/* Used to calculate the index of link_map l_reloc_result.  */
+#define PLTREL ElfW(Rela)
 
 #endif
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index cf9f58d6f5..d0004a3111 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -35,6 +35,7 @@
 #include <link.h>
 #include <dl-lookupcfg.h>
 #include <dl-sysdep.h>
+#include <dl-fixup-attribute.h>
 #include <libc-lock.h>
 #include <hp-timing.h>
 #include <tls.h>
@@ -1438,6 +1439,11 @@ void _dl_audit_pltenter (struct link_map *l, struct reloc_result *reloc_result,
 			 DL_FIXUP_VALUE_TYPE *value, void *regs,
 			 long int *framesize)
   attribute_hidden;
+void DL_ARCH_FIXUP_ATTRIBUTE _dl_audit_pltexit (struct link_map *l,
+						ElfW(Word) reloc_arg,
+						const void *inregs,
+						void *outregs)
+  attribute_hidden;
 #endif /* SHARED */
 
 #if PTHREAD_IN_LIBC && defined SHARED