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-rw-r--r--multilib-testing/lib32-glibc/glibc-2.15-ifunc.patch285
1 files changed, 0 insertions, 285 deletions
diff --git a/multilib-testing/lib32-glibc/glibc-2.15-ifunc.patch b/multilib-testing/lib32-glibc/glibc-2.15-ifunc.patch
deleted file mode 100644
index 8ad0b9d7a..000000000
--- a/multilib-testing/lib32-glibc/glibc-2.15-ifunc.patch
+++ /dev/null
@@ -1,285 +0,0 @@
-
-From 6ee65ed6ddbf04402fad0bec6aa9c73b9d982ae4 Mon Sep 17 00:00:00 2001
-From: Ulrich Drepper <drepper@gmail.com>
-Date: Fri, 27 Jan 2012 15:05:19 -0500
-Subject: [PATCH] Sort objects before relocations
-
----
- ChangeLog | 11 ++++
- Makeconfig | 6 ++
- NEWS | 4 +-
- elf/Makefile | 15 +++++-
- elf/dl-open.c | 128 ++++++++++++++++++++++++++++++++++++------------
- elf/tst-relsort1.c | 19 +++++++
- elf/tst-relsort1mod1.c | 7 +++
- elf/tst-relsort1mod2.c | 7 +++
- 8 files changed, 160 insertions(+), 37 deletions(-)
- create mode 100644 elf/tst-relsort1.c
- create mode 100644 elf/tst-relsort1mod1.c
- create mode 100644 elf/tst-relsort1mod2.c
-
-diff --git a/Makeconfig b/Makeconfig
-index 2db2821..68547b2 100644
---- a/Makeconfig
-+++ b/Makeconfig
-@@ -900,6 +900,12 @@ else
- libdl = $(common-objpfx)dlfcn/libdl.a
- endif
-
-+ifeq ($(build-shared),yes)
-+libm = $(common-objpfx)math/libm.so$(libm.so-version)
-+else
-+libm = $(common-objpfx)math/libm.a
-+endif
-+
- # These are the subdirectories containing the library source. The order
- # is more or less arbitrary. The sorting step will take care of the
- # dependencies.
-diff --git a/elf/Makefile b/elf/Makefile
-index 052e763..3f1772a 100644
---- a/elf/Makefile
-+++ b/elf/Makefile
-@@ -124,7 +124,8 @@ distribute := rtld-Rules \
- tst-initordera1.c tst-initordera2.c tst-initorderb1.c \
- tst-initorderb2.c tst-initordera3.c tst-initordera4.c \
- tst-initorder.c \
-- tst-initorder2.c
-+ tst-initorder2.c \
-+ tst-relsort1.c tst-relsort1mod1.c tst-relsort1mod2.c
-
- CFLAGS-dl-runtime.c = -fexceptions -fasynchronous-unwind-tables
- CFLAGS-dl-lookup.c = -fexceptions -fasynchronous-unwind-tables
-@@ -227,7 +228,7 @@ tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
- tst-audit1 tst-audit2 \
- tst-stackguard1 tst-addr1 tst-thrlock \
- tst-unique1 tst-unique2 tst-unique3 tst-unique4 \
-- tst-initorder tst-initorder2
-+ tst-initorder tst-initorder2 tst-relsort1
- # reldep9
- test-srcs = tst-pathopt
- selinux-enabled := $(shell cat /selinux/enforce 2> /dev/null)
-@@ -290,7 +291,9 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
- tst-initordera1 tst-initorderb1 \
- tst-initordera2 tst-initorderb2 \
- tst-initordera3 tst-initordera4 \
-- tst-initorder2a tst-initorder2b tst-initorder2c tst-initorder2d
-+ tst-initorder2a tst-initorder2b tst-initorder2c \
-+ tst-initorder2d \
-+ tst-relsort1mod1 tst-relsort1mod2
- ifeq (yes,$(have-initfini-array))
- modules-names += tst-array2dep tst-array5dep
- endif
-@@ -1195,3 +1198,9 @@ CFLAGS-tst-auditmod6b.c += $(AVX-CFLAGS)
- CFLAGS-tst-auditmod6c.c += $(AVX-CFLAGS)
- CFLAGS-tst-auditmod7b.c += $(AVX-CFLAGS)
- endif
-+
-+$(objpfx)tst-relsort1: $(libdl)
-+$(objpfx)tst-relsort1mod1.so: $(libm) $(objpfx)tst-relsort1mod2.so
-+$(objpfx)tst-relsort1mod2.so: $(libm)
-+$(objpfx)tst-relsort1.out: $(objpfx)tst-relsort1mod1.so \
-+ $(objpfx)tst-relsort1mod2.so
-diff --git a/elf/dl-open.c b/elf/dl-open.c
-index a0b5c50..a56bdc1 100644
---- a/elf/dl-open.c
-+++ b/elf/dl-open.c
-@@ -1,5 +1,5 @@
- /* Load a shared object at runtime, relocate it, and run its initializer.
-- Copyright (C) 1996-2007, 2009, 2010, 2011 Free Software Foundation, Inc.
-+ Copyright (C) 1996-2007, 2009, 2010, 2011, 2012 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
-@@ -302,45 +302,109 @@ dl_open_worker (void *a)
- if (GLRO(dl_lazy))
- reloc_mode |= mode & RTLD_LAZY;
-
-- /* Relocate the objects loaded. We do this in reverse order so that copy
-- relocs of earlier objects overwrite the data written by later objects. */
--
-+ /* Sort the objects by dependency for the relocation process. This
-+ allows IFUNC relocations to work and it also means copy
-+ relocation of dependencies are if necessary overwritten. */
-+ size_t nmaps = 0;
- struct link_map *l = new;
-- while (l->l_next)
-- l = l->l_next;
-- while (1)
-+ do
-+ {
-+ if (! l->l_real->l_relocated)
-+ ++nmaps;
-+ l = l->l_next;
-+ }
-+ while (l != NULL);
-+ struct link_map *maps[nmaps];
-+ nmaps = 0;
-+ l = new;
-+ do
- {
- if (! l->l_real->l_relocated)
-+ maps[nmaps++] = l;
-+ l = l->l_next;
-+ }
-+ while (l != NULL);
-+ if (nmaps > 1)
-+ {
-+ char seen[nmaps];
-+ memset (seen, '\0', nmaps);
-+ size_t i = 0;
-+ while (1)
- {
--#ifdef SHARED
-- if (__builtin_expect (GLRO(dl_profile) != NULL, 0))
-+ ++seen[i];
-+ struct link_map *thisp = maps[i];
-+
-+ /* Find the last object in the list for which the current one is
-+ a dependency and move the current object behind the object
-+ with the dependency. */
-+ size_t k = nmaps - 1;
-+ while (k > i)
- {
-- /* If this here is the shared object which we want to profile
-- make sure the profile is started. We can find out whether
-- this is necessary or not by observing the `_dl_profile_map'
-- variable. If was NULL but is not NULL afterwars we must
-- start the profiling. */
-- struct link_map *old_profile_map = GL(dl_profile_map);
-+ struct link_map **runp = maps[k]->l_initfini;
-+ if (runp != NULL)
-+ /* Look through the dependencies of the object. */
-+ while (*runp != NULL)
-+ if (__builtin_expect (*runp++ == thisp, 0))
-+ {
-+ /* Move the current object to the back past the last
-+ object with it as the dependency. */
-+ memmove (&maps[i], &maps[i + 1],
-+ (k - i) * sizeof (maps[0]));
-+ maps[k] = thisp;
-+
-+ if (seen[i + 1] > 1)
-+ {
-+ ++i;
-+ goto next_clear;
-+ }
-+
-+ char this_seen = seen[i];
-+ memmove (&seen[i], &seen[i + 1],
-+ (k - i) * sizeof (seen[0]));
-+ seen[k] = this_seen;
-+
-+ goto next;
-+ }
-+
-+ --k;
-+ }
-
-- _dl_relocate_object (l, l->l_scope, reloc_mode | RTLD_LAZY, 1);
-+ if (++i == nmaps)
-+ break;
-+ next_clear:
-+ memset (&seen[i], 0, (nmaps - i) * sizeof (seen[0]));
-+ next:;
-+ }
-+ }
-
-- if (old_profile_map == NULL && GL(dl_profile_map) != NULL)
-- {
-- /* We must prepare the profiling. */
-- _dl_start_profile ();
-+ for (size_t i = nmaps; i-- > 0; )
-+ {
-+ l = maps[i];
-
-- /* Prevent unloading the object. */
-- GL(dl_profile_map)->l_flags_1 |= DF_1_NODELETE;
-- }
-+#ifdef SHARED
-+ if (__builtin_expect (GLRO(dl_profile) != NULL, 0))
-+ {
-+ /* If this here is the shared object which we want to profile
-+ make sure the profile is started. We can find out whether
-+ this is necessary or not by observing the `_dl_profile_map'
-+ variable. If it was NULL but is not NULL afterwars we must
-+ start the profiling. */
-+ struct link_map *old_profile_map = GL(dl_profile_map);
-+
-+ _dl_relocate_object (l, l->l_scope, reloc_mode | RTLD_LAZY, 1);
-+
-+ if (old_profile_map == NULL && GL(dl_profile_map) != NULL)
-+ {
-+ /* We must prepare the profiling. */
-+ _dl_start_profile ();
-+
-+ /* Prevent unloading the object. */
-+ GL(dl_profile_map)->l_flags_1 |= DF_1_NODELETE;
- }
-- else
--#endif
-- _dl_relocate_object (l, l->l_scope, reloc_mode, 0);
- }
--
-- if (l == new)
-- break;
-- l = l->l_prev;
-+ else
-+#endif
-+ _dl_relocate_object (l, l->l_scope, reloc_mode, 0);
- }
-
- /* If the file is not loaded now as a dependency, add the search
-diff --git a/elf/tst-relsort1.c b/elf/tst-relsort1.c
-new file mode 100644
-index 0000000..972100c
---- /dev/null
-+++ b/elf/tst-relsort1.c
-@@ -0,0 +1,19 @@
-+#include <dlfcn.h>
-+#include <stdio.h>
-+
-+
-+static int
-+do_test ()
-+{
-+ const char lib[] = "$ORIGIN/tst-relsort1mod1.so";
-+ void *h = dlopen (lib, RTLD_NOW);
-+ if (h == NULL)
-+ {
-+ puts (dlerror ());
-+ return 1;
-+ }
-+ return 0;
-+}
-+
-+#define TEST_FUNCTION do_test ()
-+#include "../test-skeleton.c"
-diff --git a/elf/tst-relsort1mod1.c b/elf/tst-relsort1mod1.c
-new file mode 100644
-index 0000000..9e4a943
---- /dev/null
-+++ b/elf/tst-relsort1mod1.c
-@@ -0,0 +1,7 @@
-+extern int foo (double);
-+
-+int
-+bar (void)
-+{
-+ return foo (1.2);
-+}
-diff --git a/elf/tst-relsort1mod2.c b/elf/tst-relsort1mod2.c
-new file mode 100644
-index 0000000..a2c3e55
---- /dev/null
-+++ b/elf/tst-relsort1mod2.c
-@@ -0,0 +1,7 @@
-+#include <math.h>
-+
-+int
-+foo (double d)
-+{
-+ return floor (d) != 0.0;
-+}
---
-1.7.3.4
-
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