--- /dev/null
+From f7439f9b1089e17b6721f28e228682831a2f0135 Mon Sep 17 00:00:00 2001
+From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com>
+Date: Mon, 21 Aug 2017 14:23:27 +0200
+Subject: [PATCH] Do not use __builtin_types_compatible_p in C++ mode (bug
+ 21930)
+
+The logic to define isinf for float128 depends on the availability of
+__builtin_types_compatible_p, which is only available in C mode,
+however, the conditionals do not check for C or C++ mode. This lead to
+an error in libstdc++ configure, as reported by bug 21930.
+
+This patch adds a conditional for C mode in the definition of isinf for
+float128. No definition is provided in C++ mode, since libstdc++
+headers undefine isinf.
+
+Tested for powerpc64le (glibc test suite and libstdc++-v3 configure).
+
+ [BZ #21930]
+ * math/math.h (isinf): Check if in C or C++ mode before using
+ __builtin_types_compatible_p, since this is a C mode feature.
+
+(cherry picked from commit 47a67213a9f51c5f8816d240500b10db605d8b77)
+[Romain rebase on glibc 2.26]
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ math/math.h | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/math/math.h b/math/math.h
+index e217080..dea8dbe 100644
+--- a/math/math.h
++++ b/math/math.h
+@@ -442,8 +442,12 @@ enum
+
+ /* Return nonzero value if X is positive or negative infinity. */
+ # if __HAVE_DISTINCT_FLOAT128 && !__GNUC_PREREQ (7,0) \
+- && !defined __SUPPORT_SNAN__
+- /* __builtin_isinf_sign is broken for float128 only before GCC 7.0. */
++ && !defined __SUPPORT_SNAN__ && !defined __cplusplus
++ /* Since __builtin_isinf_sign is broken for float128 before GCC 7.0,
++ use the helper function, __isinff128, with older compilers. This is
++ only provided for C mode, because in C++ mode, GCC has no support
++ for __builtin_types_compatible_p (and when in C++ mode, this macro is
++ not used anyway, because libstdc++ headers undefine it). */
+ # define isinf(x) \
+ (__builtin_types_compatible_p (__typeof (x), _Float128) \
+ ? __isinff128 (x) : __builtin_isinf_sign (x))
+--
+2.9.5
+
+++ /dev/null
-From 3840d4c2add1dd282f5f01fa51720b2d5b8fd8d2 Mon Sep 17 00:00:00 2001
-From: Alexey Neyman <stilor@att.net>
-Date: Wed, 8 Feb 2017 16:00:57 -0200
-Subject: [PATCH] sh: Fix building with gcc5/6
-
-Build glibc for sh4-unknown-linux-gnu currently fails if one's
-using GCC5/6: in dl-conflict.c, the elf_machine_rela() function
-is called with NULL as its 3rd argument, sym. The implementation
-of that function in sysdeps/sh/dl-machine.h dereferences that pointer:
-
-const Elf32_Sym *const refsym = sym;
-...
-if (map == &GL(dl_rtld_map))
- value -= map->l_addr + refsym->st_value + reloc->r_addend;
-
-GCC discovers a null pointer dereference, and in accordance with
--fdelete-null-pointer-checks (which is enabled in -O2) replaces this
-code with a trap - which, as SH does not implement a trap pattern in
-GCC, evaluates to an abort() call. This abort() call pulls many more
-objects from libc_nonshared.a, eventually resulting in link failure
-due to multiple definitions for a number of symbols.
-
-As far as I see, the conditional before this code is always false in
-rtld: _dl_resolve_conflicts() is called with main_map as the first
-argument, not GL(_dl_rtld_map), but since that call is in yet another
-compilation unit, GCC does not know about it. Patch that wraps this
-conditional into !defined RESOLVE_CONFLICT_FIND_MAP attached.
-
- * sysdeps/sh/dl-machine.h (elf_machine_rela): The condition
- in R_SH_DIR32 case is always false when inlined from
- dl-conflict.c. Ifdef out to prevent GCC from insertin an
- abort() call.
-
-[Waldemar: backport of
-https://sourceware.org/git/?p=glibc.git;a=commit;h=d40dbe722f004f999b589de776f7e57e564dda01.]
-Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
----
- sysdeps/sh/dl-machine.h | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/sysdeps/sh/dl-machine.h b/sysdeps/sh/dl-machine.h
-index 449deea..2b468af 100644
---- a/sysdeps/sh/dl-machine.h
-+++ b/sysdeps/sh/dl-machine.h
-@@ -389,7 +389,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
- break;
- case R_SH_DIR32:
- {
--#ifndef RTLD_BOOTSTRAP
-+#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP
- /* This is defined in rtld.c, but nowhere in the static
- libc.a; make the reference weak so static programs can
- still link. This declaration cannot be done when
---
-2.7.4
-
+++ /dev/null
-From f6110a8fee2ca36f8e2d2abecf3cba9fa7b8ea7d Mon Sep 17 00:00:00 2001
-From: Florian Weimer <fweimer@redhat.com>
-Date: Mon, 19 Jun 2017 17:09:55 +0200
-Subject: [PATCH] CVE-2017-1000366: Ignore LD_LIBRARY_PATH for AT_SECURE=1
- programs [BZ #21624]
-
-LD_LIBRARY_PATH can only be used to reorder system search paths, which
-is not useful functionality.
-
-This makes an exploitable unbounded alloca in _dl_init_paths unreachable
-for AT_SECURE=1 programs.
-
-[Peter: Drop ChangeLog modification]
-Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
----
- elf/rtld.c | 3 ++-
- 1 file changed, 8 insertions(+), 1 deletion(-)
-
-diff --git a/elf/rtld.c b/elf/rtld.c
-index 2446a87680..2269dbec81 100644
---- a/elf/rtld.c
-+++ b/elf/rtld.c
-@@ -2422,7 +2422,8 @@ process_envvars (enum mode *modep)
-
- case 12:
- /* The library search path. */
-- if (memcmp (envline, "LIBRARY_PATH", 12) == 0)
-+ if (!__libc_enable_secure
-+ && memcmp (envline, "LIBRARY_PATH", 12) == 0)
- {
- library_path = &envline[13];
- break;
---
-2.11.0
-
--- /dev/null
+From bb21afc362a3ecba07ab386a0bc4385e75fbd4b5 Mon Sep 17 00:00:00 2001
+From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com>
+Date: Mon, 14 Aug 2017 17:51:51 -0300
+Subject: [PATCH] Do not use generic selection in C++ mode
+
+The logic to protect the use of generic selection (_Generic) does not
+check for C or C++ mode, however, generic selection is a C-only
+feature.
+
+Tested for powerpc64le.
+
+ * misc/sys/cdefs.h (__HAVE_GENERIC_SELECTION): Define to 0, if
+ in C++ mode.
+
+(cherry picked from commit 6913ad65e00bb32417ad39c41d292b976171e27e)
+[Romain rebase on glibc 2.26]
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ misc/sys/cdefs.h | 19 ++++++++++---------
+ 1 file changed, 10 insertions(+), 9 deletions(-)
+
+diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
+index 06523bf..0c80821 100644
+--- a/misc/sys/cdefs.h
++++ b/misc/sys/cdefs.h
+@@ -464,17 +464,18 @@
+ # define __glibc_macro_warning(msg)
+ #endif
+
+-/* Support for generic selection (ISO C11) is available in GCC since
+- version 4.9. Previous versions do not provide generic selection,
+- even though they might set __STDC_VERSION__ to 201112L, when in
+- -std=c11 mode. Thus, we must check for !defined __GNUC__ when
+- testing __STDC_VERSION__ for generic selection support.
++/* Generic selection (ISO C11) is a C-only feature, available in GCC
++ since version 4.9. Previous versions do not provide generic
++ selection, even though they might set __STDC_VERSION__ to 201112L,
++ when in -std=c11 mode. Thus, we must check for !defined __GNUC__
++ when testing __STDC_VERSION__ for generic selection support.
+ On the other hand, Clang also defines __GNUC__, so a clang-specific
+ check is required to enable the use of generic selection. */
+-#if __GNUC_PREREQ (4, 9) \
+- || __glibc_clang_has_extension (c_generic_selections) \
+- || (!defined __GNUC__ && defined __STDC_VERSION__ \
+- && __STDC_VERSION__ >= 201112L)
++#if !defined __cplusplus \
++ && (__GNUC_PREREQ (4, 9) \
++ || __glibc_clang_has_extension (c_generic_selections) \
++ || (!defined __GNUC__ && defined __STDC_VERSION__ \
++ && __STDC_VERSION__ >= 201112L))
+ # define __HAVE_GENERIC_SELECTION 1
+ #else
+ # define __HAVE_GENERIC_SELECTION 0
+--
+2.9.5
+
--- /dev/null
+From 9bcf391a21677c6d5fa1c2be71554ec181e24f39 Mon Sep 17 00:00:00 2001
+From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com>
+Date: Mon, 14 Aug 2017 13:46:15 -0300
+Subject: [PATCH] Provide a C++ version of issignaling that does not use
+ __MATH_TG
+
+The macro __MATH_TG contains the logic to select between long double and
+_Float128, when these types are ABI-distinct. This logic relies on
+__builtin_types_compatible_p, which is not available in C++ mode.
+
+On the other hand, C++ function overloading provides the means to
+distinguish between the floating-point types. The overloading
+resolution will match the correct parameter regardless of type
+qualifiers, i.e.: const and volatile.
+
+Tested for powerpc64le, s390x, and x86_64.
+
+ * math/math.h [defined __cplusplus] (issignaling): Provide a C++
+ definition for issignaling that does not rely on __MATH_TG,
+ since __MATH_TG uses __builtin_types_compatible_p, which is only
+ available in C mode.
+ (CFLAGS-test-math-issignaling.cc): New variable.
+ * math/Makefile [CXX] (tests): Add test-math-issignaling.
+ * math/test-math-issignaling.cc: New test for C++ implementation
+ of type-generic issignaling.
+ * sysdeps/powerpc/powerpc64le/Makefile [subdir == math]
+ (CXXFLAGS-test-math-issignaling.cc): Add -mfloat128 to the build
+ options of test-math-issignaling on powerpc64le.
+
+(cherry picked from commit a16e8bc08edca84d507715c66d6cddbbc7ed3b62)
+[Romain rebase on glibc 2.26]
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ math/Makefile | 3 +-
+ math/math.h | 19 +++++-
+ math/test-math-issignaling.cc | 113 +++++++++++++++++++++++++++++++++++
+ sysdeps/powerpc/powerpc64le/Makefile | 1 +
+ 4 files changed, 134 insertions(+), 2 deletions(-)
+ create mode 100644 math/test-math-issignaling.cc
+
+diff --git a/math/Makefile b/math/Makefile
+index e09b0c0..0130fcf 100644
+--- a/math/Makefile
++++ b/math/Makefile
+@@ -203,7 +203,7 @@ tests-static = test-fpucw-static test-fpucw-ieee-static \
+ test-signgam-ullong-static test-signgam-ullong-init-static
+
+ ifneq (,$(CXX))
+-tests += test-math-isinff test-math-iszero
++tests += test-math-isinff test-math-iszero test-math-issignaling
+ endif
+
+ ifneq (no,$(PERL))
+@@ -350,6 +350,7 @@ CFLAGS-test-signgam-ullong-init-static.c = -std=c99
+
+ CFLAGS-test-math-isinff.cc = -std=gnu++11
+ CFLAGS-test-math-iszero.cc = -std=gnu++11
++CFLAGS-test-math-issignaling.cc = -std=gnu++11
+
+ CFLAGS-test-iszero-excess-precision.c = -fexcess-precision=standard
+ CFLAGS-test-iseqsig-excess-precision.c = -fexcess-precision=standard
+diff --git a/math/math.h b/math/math.h
+index dea8dbe..add86af 100644
+--- a/math/math.h
++++ b/math/math.h
+@@ -474,7 +474,24 @@ enum
+ # include <bits/iscanonical.h>
+
+ /* Return nonzero value if X is a signaling NaN. */
+-# define issignaling(x) __MATH_TG ((x), __issignaling, (x))
++# ifndef __cplusplus
++# define issignaling(x) __MATH_TG ((x), __issignaling, (x))
++# else
++ /* In C++ mode, __MATH_TG cannot be used, because it relies on
++ __builtin_types_compatible_p, which is a C-only builtin. On the
++ other hand, overloading provides the means to distinguish between
++ the floating-point types. The overloading resolution will match
++ the correct parameter (regardless of type qualifiers (i.e.: const
++ and volatile). */
++extern "C++" {
++inline int issignaling (float __val) { return __issignalingf (__val); }
++inline int issignaling (double __val) { return __issignaling (__val); }
++inline int issignaling (long double __val) { return __issignalingl (__val); }
++# if __HAVE_DISTINCT_FLOAT128
++inline int issignaling (_Float128 __val) { return __issignalingf128 (__val); }
++# endif
++} /* extern C++ */
++# endif
+
+ /* Return nonzero value if X is subnormal. */
+ # define issubnormal(x) (fpclassify (x) == FP_SUBNORMAL)
+diff --git a/math/test-math-issignaling.cc b/math/test-math-issignaling.cc
+new file mode 100644
+index 0000000..22ae9e1
+--- /dev/null
++++ b/math/test-math-issignaling.cc
+@@ -0,0 +1,113 @@
++/* Test for the C++ implementation of issignaling.
++ Copyright (C) 2017 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
++ <http://www.gnu.org/licenses/>. */
++
++#define _GNU_SOURCE 1
++#include <math.h>
++#include <stdio.h>
++
++#include <limits>
++
++/* There is no signaling_NaN for _Float128 in std::numeric_limits.
++ Include ieee754_float128.h and use the bitfields in the union
++ ieee854_float128.ieee_nan to build a signaling NaN. */
++#if __HAVE_DISTINCT_FLOAT128
++# include <ieee754_float128.h>
++#endif
++
++static bool errors;
++
++static void
++check (int actual, int expected, const char *actual_expr, int line)
++{
++ if (actual != expected)
++ {
++ errors = true;
++ printf ("%s:%d: error: %s\n", __FILE__, line, actual_expr);
++ printf ("%s:%d: expected: %d\n", __FILE__, line, expected);
++ printf ("%s:%d: actual: %d\n", __FILE__, line, actual);
++ }
++}
++
++#define CHECK(actual, expected) \
++ check ((actual), (expected), #actual, __LINE__)
++
++template <class T>
++static void
++check_type ()
++{
++ typedef std::numeric_limits<T> limits;
++ CHECK (issignaling (T{0}), 0);
++ if (limits::has_infinity)
++ {
++ CHECK (issignaling (limits::infinity ()), 0);
++ CHECK (issignaling (-limits::infinity ()), 0);
++ }
++ if (limits::has_quiet_NaN)
++ CHECK (issignaling (limits::quiet_NaN ()), 0);
++ if (limits::has_signaling_NaN)
++ CHECK (issignaling (limits::signaling_NaN ()), 1);
++}
++
++#if __HAVE_DISTINCT_FLOAT128
++static void
++check_float128 ()
++{
++ ieee854_float128 q;
++
++ q.d = 0;
++ CHECK (issignaling (q.d), 0);
++
++ /* Infinity. */
++ q.ieee.negative = 0;
++ q.ieee.exponent = 0x7FFF;
++ q.ieee.mantissa0 = 0x0000;
++ q.ieee.mantissa1 = 0x00000000;
++ q.ieee.mantissa2 = 0x00000000;
++ q.ieee.mantissa3 = 0x00000000;
++ CHECK (issignaling (q.d), 0);
++
++ /* Quiet NaN. */
++ q.ieee_nan.quiet_nan = 1;
++ q.ieee_nan.mantissa0 = 0x0000;
++ CHECK (issignaling (q.d), 0);
++
++ /* Still a quiet NaN. */
++ q.ieee_nan.quiet_nan = 1;
++ q.ieee_nan.mantissa0 = 0x4000;
++ CHECK (issignaling (q.d), 0);
++
++ /* Signaling NaN. */
++ q.ieee_nan.quiet_nan = 0;
++ q.ieee_nan.mantissa0 = 0x4000;
++ CHECK (issignaling (q.d), 1);
++}
++#endif
++
++static int
++do_test (void)
++{
++ check_type<float> ();
++ check_type<double> ();
++ check_type<long double> ();
++#if __HAVE_DISTINCT_FLOAT128
++ check_float128 ();
++#endif
++ return errors;
++}
++
++#include <support/test-driver.c>
+diff --git a/sysdeps/powerpc/powerpc64le/Makefile b/sysdeps/powerpc/powerpc64le/Makefile
+index 77617b6..19adbfa 100644
+--- a/sysdeps/powerpc/powerpc64le/Makefile
++++ b/sysdeps/powerpc/powerpc64le/Makefile
+@@ -16,6 +16,7 @@ $(foreach suf,$(all-object-suffixes),%f128_r$(suf)): CFLAGS += -mfloat128
+ $(foreach suf,$(all-object-suffixes),$(objpfx)test-float128%$(suf)): CFLAGS += -mfloat128
+ $(foreach suf,$(all-object-suffixes),$(objpfx)test-ifloat128%$(suf)): CFLAGS += -mfloat128
+ CFLAGS-libm-test-support-float128.c += -mfloat128
++CFLAGS-test-math-issignaling.cc += -mfloat128
+ $(objpfx)test-float128% $(objpfx)test-ifloat128%: \
+ gnulib-tests += $(f128-loader-link)
+ endif
+--
+2.9.5
+
+++ /dev/null
-From 6d0ba622891bed9d8394eef1935add53003b12e8 Mon Sep 17 00:00:00 2001
-From: Florian Weimer <fweimer@redhat.com>
-Date: Mon, 19 Jun 2017 22:31:04 +0200
-Subject: [PATCH] ld.so: Reject overly long LD_PRELOAD path elements
-
-[Peter: Drop ChangeLog modification]
-Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
----
- elf/rtld.c | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++------------
- 1 file changed, 72 insertions(+), 16 deletions(-)
-
-diff --git a/elf/rtld.c b/elf/rtld.c
-index 2269dbec81..86ae20c83f 100644
---- a/elf/rtld.c
-+++ b/elf/rtld.c
-@@ -99,6 +99,35 @@ uintptr_t __pointer_chk_guard_local
- strong_alias (__pointer_chk_guard_local, __pointer_chk_guard)
- #endif
-
-+/* Length limits for names and paths, to protect the dynamic linker,
-+ particularly when __libc_enable_secure is active. */
-+#ifdef NAME_MAX
-+# define SECURE_NAME_LIMIT NAME_MAX
-+#else
-+# define SECURE_NAME_LIMIT 255
-+#endif
-+#ifdef PATH_MAX
-+# define SECURE_PATH_LIMIT PATH_MAX
-+#else
-+# define SECURE_PATH_LIMIT 1024
-+#endif
-+
-+/* Check that AT_SECURE=0, or that the passed name does not contain
-+ directories and is not overly long. Reject empty names
-+ unconditionally. */
-+static bool
-+dso_name_valid_for_suid (const char *p)
-+{
-+ if (__glibc_unlikely (__libc_enable_secure))
-+ {
-+ /* Ignore pathnames with directories for AT_SECURE=1
-+ programs, and also skip overlong names. */
-+ size_t len = strlen (p);
-+ if (len >= SECURE_NAME_LIMIT || memchr (p, '/', len) != NULL)
-+ return false;
-+ }
-+ return *p != '\0';
-+}
-
- /* List of auditing DSOs. */
- static struct audit_list
-@@ -718,6 +747,42 @@ static const char *preloadlist attribute_relro;
- /* Nonzero if information about versions has to be printed. */
- static int version_info attribute_relro;
-
-+/* The LD_PRELOAD environment variable gives list of libraries
-+ separated by white space or colons that are loaded before the
-+ executable's dependencies and prepended to the global scope list.
-+ (If the binary is running setuid all elements containing a '/' are
-+ ignored since it is insecure.) Return the number of preloads
-+ performed. */
-+unsigned int
-+handle_ld_preload (const char *preloadlist, struct link_map *main_map)
-+{
-+ unsigned int npreloads = 0;
-+ const char *p = preloadlist;
-+ char fname[SECURE_PATH_LIMIT];
-+
-+ while (*p != '\0')
-+ {
-+ /* Split preload list at space/colon. */
-+ size_t len = strcspn (p, " :");
-+ if (len > 0 && len < sizeof (fname))
-+ {
-+ memcpy (fname, p, len);
-+ fname[len] = '\0';
-+ }
-+ else
-+ fname[0] = '\0';
-+
-+ /* Skip over the substring and the following delimiter. */
-+ p += len;
-+ if (*p != '\0')
-+ ++p;
-+
-+ if (dso_name_valid_for_suid (fname))
-+ npreloads += do_preload (fname, main_map, "LD_PRELOAD");
-+ }
-+ return npreloads;
-+}
-+
- static void
- dl_main (const ElfW(Phdr) *phdr,
- ElfW(Word) phnum,
-@@ -1464,23 +1529,8 @@ ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
-
- if (__glibc_unlikely (preloadlist != NULL))
- {
-- /* The LD_PRELOAD environment variable gives list of libraries
-- separated by white space or colons that are loaded before the
-- executable's dependencies and prepended to the global scope
-- list. If the binary is running setuid all elements
-- containing a '/' are ignored since it is insecure. */
-- char *list = strdupa (preloadlist);
-- char *p;
--
- HP_TIMING_NOW (start);
--
-- /* Prevent optimizing strsep. Speed is not important here. */
-- while ((p = (strsep) (&list, " :")) != NULL)
-- if (p[0] != '\0'
-- && (__builtin_expect (! __libc_enable_secure, 1)
-- || strchr (p, '/') == NULL))
-- npreloads += do_preload (p, main_map, "LD_PRELOAD");
--
-+ npreloads += handle_ld_preload (preloadlist, main_map);
- HP_TIMING_NOW (stop);
- HP_TIMING_DIFF (diff, start, stop);
- HP_TIMING_ACCUM_NT (load_time, diff);
---
-2.11.0
-
--- /dev/null
+From 9dbd8386a1b706beb30291a7e76bbfe69c2620cf Mon Sep 17 00:00:00 2001
+From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com>
+Date: Wed, 23 Aug 2017 10:16:54 -0300
+Subject: [PATCH] Fix the C++ version of issignaling when __NO_LONG_DOUBLE_MATH
+ is defined
+
+When __NO_LONG_DOUBLE_MATH is defined, __issignalingl is not available,
+thus issignaling with long double argument should call __issignaling,
+instead.
+
+Tested for powerpc64le.
+
+ * math/math.h [defined __cplusplus] (issignaling): In the long
+ double case, call __issignalingl only if __NO_LONG_DOUBLE_MATH
+ is not defined. Call __issignaling, otherwise.
+
+(cherry picked from commit 3d7b66f66cb223e899a7ebc0f4c20f13e711c9e0)
+[Romain rebase on glibc 2.26]
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ math/math.h | 10 +++++++++-
+ 1 file changed, 9 insertions(+), 1 deletion(-)
+
+diff --git a/math/math.h b/math/math.h
+index add86af..60dfa31 100644
+--- a/math/math.h
++++ b/math/math.h
+@@ -486,7 +486,15 @@ enum
+ extern "C++" {
+ inline int issignaling (float __val) { return __issignalingf (__val); }
+ inline int issignaling (double __val) { return __issignaling (__val); }
+-inline int issignaling (long double __val) { return __issignalingl (__val); }
++inline int
++issignaling (long double __val)
++{
++# ifdef __NO_LONG_DOUBLE_MATH
++ return __issignaling (__val);
++# else
++ return __issignalingl (__val);
++# endif
++}
+ # if __HAVE_DISTINCT_FLOAT128
+ inline int issignaling (_Float128 __val) { return __issignalingf128 (__val); }
+ # endif
+--
+2.9.5
+
+++ /dev/null
-From 81b82fb966ffbd94353f793ad17116c6088dedd9 Mon Sep 17 00:00:00 2001
-From: Florian Weimer <fweimer@redhat.com>
-Date: Mon, 19 Jun 2017 22:32:12 +0200
-Subject: [PATCH] ld.so: Reject overly long LD_AUDIT path elements
-
-Also only process the last LD_AUDIT entry.
-
-[Peter: Drop ChangeLog modification]
-Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
----
- elf/rtld.c | 110 ++++++++++++++++++++++++++++++++++++++++++++++++++++---------
- 1 file changed, 105 insertions(+), 15 deletions(-)
-
-diff --git a/elf/rtld.c b/elf/rtld.c
-index 86ae20c83f..65647fb1c8 100644
---- a/elf/rtld.c
-+++ b/elf/rtld.c
-@@ -129,13 +129,91 @@ dso_name_valid_for_suid (const char *p)
- return *p != '\0';
- }
-
--/* List of auditing DSOs. */
-+/* LD_AUDIT variable contents. Must be processed before the
-+ audit_list below. */
-+const char *audit_list_string;
-+
-+/* Cyclic list of auditing DSOs. audit_list->next is the first
-+ element. */
- static struct audit_list
- {
- const char *name;
- struct audit_list *next;
- } *audit_list;
-
-+/* Iterator for audit_list_string followed by audit_list. */
-+struct audit_list_iter
-+{
-+ /* Tail of audit_list_string still needing processing, or NULL. */
-+ const char *audit_list_tail;
-+
-+ /* The list element returned in the previous iteration. NULL before
-+ the first element. */
-+ struct audit_list *previous;
-+
-+ /* Scratch buffer for returning a name which is part of
-+ audit_list_string. */
-+ char fname[SECURE_NAME_LIMIT];
-+};
-+
-+/* Initialize an audit list iterator. */
-+static void
-+audit_list_iter_init (struct audit_list_iter *iter)
-+{
-+ iter->audit_list_tail = audit_list_string;
-+ iter->previous = NULL;
-+}
-+
-+/* Iterate through both audit_list_string and audit_list. */
-+static const char *
-+audit_list_iter_next (struct audit_list_iter *iter)
-+{
-+ if (iter->audit_list_tail != NULL)
-+ {
-+ /* First iterate over audit_list_string. */
-+ while (*iter->audit_list_tail != '\0')
-+ {
-+ /* Split audit list at colon. */
-+ size_t len = strcspn (iter->audit_list_tail, ":");
-+ if (len > 0 && len < sizeof (iter->fname))
-+ {
-+ memcpy (iter->fname, iter->audit_list_tail, len);
-+ iter->fname[len] = '\0';
-+ }
-+ else
-+ /* Do not return this name to the caller. */
-+ iter->fname[0] = '\0';
-+
-+ /* Skip over the substring and the following delimiter. */
-+ iter->audit_list_tail += len;
-+ if (*iter->audit_list_tail == ':')
-+ ++iter->audit_list_tail;
-+
-+ /* If the name is valid, return it. */
-+ if (dso_name_valid_for_suid (iter->fname))
-+ return iter->fname;
-+ /* Otherwise, wrap around and try the next name. */
-+ }
-+ /* Fall through to the procesing of audit_list. */
-+ }
-+
-+ if (iter->previous == NULL)
-+ {
-+ if (audit_list == NULL)
-+ /* No pre-parsed audit list. */
-+ return NULL;
-+ /* Start of audit list. The first list element is at
-+ audit_list->next (cyclic list). */
-+ iter->previous = audit_list->next;
-+ return iter->previous->name;
-+ }
-+ if (iter->previous == audit_list)
-+ /* Cyclic list wrap-around. */
-+ return NULL;
-+ iter->previous = iter->previous->next;
-+ return iter->previous->name;
-+}
-+
- #ifndef HAVE_INLINED_SYSCALLS
- /* Set nonzero during loading and initialization of executable and
- libraries, cleared before the executable's entry point runs. This
-@@ -1305,11 +1383,13 @@ of this helper program; chances are you did not intend to run this program.\n\
- GL(dl_rtld_map).l_tls_modid = _dl_next_tls_modid ();
-
- /* If we have auditing DSOs to load, do it now. */
-- if (__glibc_unlikely (audit_list != NULL))
-+ bool need_security_init = true;
-+ if (__glibc_unlikely (audit_list != NULL)
-+ || __glibc_unlikely (audit_list_string != NULL))
- {
-- /* Iterate over all entries in the list. The order is important. */
- struct audit_ifaces *last_audit = NULL;
-- struct audit_list *al = audit_list->next;
-+ struct audit_list_iter al_iter;
-+ audit_list_iter_init (&al_iter);
-
- /* Since we start using the auditing DSOs right away we need to
- initialize the data structures now. */
-@@ -1320,9 +1400,14 @@ of this helper program; chances are you did not intend to run this program.\n\
- use different values (especially the pointer guard) and will
- fail later on. */
- security_init ();
-+ need_security_init = false;
-
-- do
-+ while (true)
- {
-+ const char *name = audit_list_iter_next (&al_iter);
-+ if (name == NULL)
-+ break;
-+
- int tls_idx = GL(dl_tls_max_dtv_idx);
-
- /* Now it is time to determine the layout of the static TLS
-@@ -1331,7 +1416,7 @@ of this helper program; chances are you did not intend to run this program.\n\
- no DF_STATIC_TLS bit is set. The reason is that we know
- glibc will use the static model. */
- struct dlmopen_args dlmargs;
-- dlmargs.fname = al->name;
-+ dlmargs.fname = name;
- dlmargs.map = NULL;
-
- const char *objname;
-@@ -1344,7 +1429,7 @@ of this helper program; chances are you did not intend to run this program.\n\
- not_loaded:
- _dl_error_printf ("\
- ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
-- al->name, err_str);
-+ name, err_str);
- if (malloced)
- free ((char *) err_str);
- }
-@@ -1448,10 +1533,7 @@ ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
- goto not_loaded;
- }
- }
--
-- al = al->next;
- }
-- while (al != audit_list->next);
-
- /* If we have any auditing modules, announce that we already
- have two objects loaded. */
-@@ -1715,7 +1797,7 @@ ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
- if (tcbp == NULL)
- tcbp = init_tls ();
-
-- if (__glibc_likely (audit_list == NULL))
-+ if (__glibc_likely (need_security_init))
- /* Initialize security features. But only if we have not done it
- earlier. */
- security_init ();
-@@ -2346,9 +2428,7 @@ process_dl_audit (char *str)
- char *p;
-
- while ((p = (strsep) (&str, ":")) != NULL)
-- if (p[0] != '\0'
-- && (__builtin_expect (! __libc_enable_secure, 1)
-- || strchr (p, '/') == NULL))
-+ if (dso_name_valid_for_suid (p))
- {
- /* This is using the local malloc, not the system malloc. The
- memory can never be freed. */
-@@ -2412,7 +2492,7 @@ process_envvars (enum mode *modep)
- break;
- }
- if (memcmp (envline, "AUDIT", 5) == 0)
-- process_dl_audit (&envline[6]);
-+ audit_list_string = &envline[6];
- break;
-
- case 7:
---
-2.11.0
-
--- /dev/null
+From 45970aa26d1af87b016ef95b4b35c566aeb6e841 Mon Sep 17 00:00:00 2001
+From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com>
+Date: Tue, 22 Aug 2017 16:34:42 -0300
+Subject: [PATCH] Provide a C++ version of iszero that does not use __MATH_TG
+ (bug 21930)
+
+When signaling nans are enabled (with -fsignaling-nans), the C++ version
+of iszero uses the fpclassify macro, which is defined with __MATH_TG.
+However, when support for float128 is available, __MATH_TG uses the
+builtin __builtin_types_compatible_p, which is only available in C mode.
+
+This patch refactors the C++ version of iszero so that it uses function
+overloading to select between the floating-point types, instead of
+relying on fpclassify and __MATH_TG.
+
+Tested for powerpc64le, s390x, x86_64, and with build-many-glibcs.py.
+
+ [BZ #21930]
+ * math/math.h [defined __cplusplus && defined __SUPPORT_SNAN__]
+ (iszero): New C++ implementation that does not use
+ fpclassify/__MATH_TG/__builtin_types_compatible_p, when
+ signaling nans are enabled, since __builtin_types_compatible_p
+ is a C-only feature.
+ * math/test-math-iszero.cc: When __HAVE_DISTINCT_FLOAT128 is
+ defined, include ieee754_float128.h for access to the union and
+ member ieee854_float128.ieee.
+ [__HAVE_DISTINCT_FLOAT128] (do_test): Call check_float128.
+ [__HAVE_DISTINCT_FLOAT128] (check_float128): New function.
+ * sysdeps/powerpc/powerpc64le/Makefile [subdir == math]
+ (CXXFLAGS-test-math-iszero.cc): Add -mfloat128 to the build
+ options of test-math-zero on powerpc64le.
+
+(cherry picked from commit 42496114ec0eb7d6d039d05d4262e109951c600c)
+[Romain rebase on glibc 2.26]
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ math/math.h | 33 +++++++++++++--
+ math/test-math-iszero.cc | 79 ++++++++++++++++++++++++++++++++++++
+ sysdeps/powerpc/powerpc64le/Makefile | 3 +-
+ 3 files changed, 110 insertions(+), 5 deletions(-)
+
+diff --git a/math/math.h b/math/math.h
+index 60dfa31..7c0fc6d 100644
+--- a/math/math.h
++++ b/math/math.h
+@@ -513,15 +513,40 @@ inline int issignaling (_Float128 __val) { return __issignalingf128 (__val); }
+ # endif
+ # else /* __cplusplus */
+ extern "C++" {
++# ifdef __SUPPORT_SNAN__
++inline int
++iszero (float __val)
++{
++ return __fpclassifyf (__val) == FP_ZERO;
++}
++inline int
++iszero (double __val)
++{
++ return __fpclassify (__val) == FP_ZERO;
++}
++inline int
++iszero (long double __val)
++{
++# ifdef __NO_LONG_DOUBLE_MATH
++ return __fpclassify (__val) == FP_ZERO;
++# else
++ return __fpclassifyl (__val) == FP_ZERO;
++# endif
++}
++# if __HAVE_DISTINCT_FLOAT128
++inline int
++iszero (_Float128 __val)
++{
++ return __fpclassifyf128 (__val) == FP_ZERO;
++}
++# endif
++# else
+ template <class __T> inline bool
+ iszero (__T __val)
+ {
+-# ifdef __SUPPORT_SNAN__
+- return fpclassify (__val) == FP_ZERO;
+-# else
+ return __val == 0;
+-# endif
+ }
++# endif
+ } /* extern C++ */
+ # endif /* __cplusplus */
+ #endif /* Use IEC_60559_BFP_EXT. */
+diff --git a/math/test-math-iszero.cc b/math/test-math-iszero.cc
+index 027e972..5c07261 100644
+--- a/math/test-math-iszero.cc
++++ b/math/test-math-iszero.cc
+@@ -22,6 +22,13 @@
+
+ #include <limits>
+
++/* Support for _Float128 in std::numeric_limits is limited.
++ Include ieee754_float128.h and use the bitfields in the union
++ ieee854_float128.ieee_nan to build corner-case inputs. */
++#if __HAVE_DISTINCT_FLOAT128
++# include <ieee754_float128.h>
++#endif
++
+ static bool errors;
+
+ static void
+@@ -72,12 +79,84 @@ check_type ()
+ std::numeric_limits<T>::has_denorm == std::denorm_absent);
+ }
+
++#if __HAVE_DISTINCT_FLOAT128
++static void
++check_float128 ()
++{
++ ieee854_float128 q;
++
++ q.d = 0.0Q;
++ CHECK (iszero (q.d), 1);
++ q.d = -0.0Q;
++ CHECK (iszero (q.d), 1);
++ q.d = 1.0Q;
++ CHECK (iszero (q.d), 0);
++ q.d = -1.0Q;
++ CHECK (iszero (q.d), 0);
++
++ /* Normal min. */
++ q.ieee.negative = 0;
++ q.ieee.exponent = 0x0001;
++ q.ieee.mantissa0 = 0x0000;
++ q.ieee.mantissa1 = 0x00000000;
++ q.ieee.mantissa2 = 0x00000000;
++ q.ieee.mantissa3 = 0x00000000;
++ CHECK (iszero (q.d), 0);
++ q.ieee.negative = 1;
++ CHECK (iszero (q.d), 0);
++
++ /* Normal max. */
++ q.ieee.negative = 0;
++ q.ieee.exponent = 0x7FFE;
++ q.ieee.mantissa0 = 0xFFFF;
++ q.ieee.mantissa1 = 0xFFFFFFFF;
++ q.ieee.mantissa2 = 0xFFFFFFFF;
++ q.ieee.mantissa3 = 0xFFFFFFFF;
++ CHECK (iszero (q.d), 0);
++ q.ieee.negative = 1;
++ CHECK (iszero (q.d), 0);
++
++ /* Infinity. */
++ q.ieee.negative = 0;
++ q.ieee.exponent = 0x7FFF;
++ q.ieee.mantissa0 = 0x0000;
++ q.ieee.mantissa1 = 0x00000000;
++ q.ieee.mantissa2 = 0x00000000;
++ q.ieee.mantissa3 = 0x00000000;
++ CHECK (iszero (q.d), 0);
++
++ /* Quiet NaN. */
++ q.ieee_nan.quiet_nan = 1;
++ q.ieee_nan.mantissa0 = 0x0000;
++ CHECK (iszero (q.d), 0);
++
++ /* Signaling NaN. */
++ q.ieee_nan.quiet_nan = 0;
++ q.ieee_nan.mantissa0 = 0x4000;
++ CHECK (iszero (q.d), 0);
++
++ /* Denormal min. */
++ q.ieee.negative = 0;
++ q.ieee.exponent = 0x0000;
++ q.ieee.mantissa0 = 0x0000;
++ q.ieee.mantissa1 = 0x00000000;
++ q.ieee.mantissa2 = 0x00000000;
++ q.ieee.mantissa3 = 0x00000001;
++ CHECK (iszero (q.d), 0);
++ q.ieee.negative = 1;
++ CHECK (iszero (q.d), 0);
++}
++#endif
++
+ static int
+ do_test (void)
+ {
+ check_type<float> ();
+ check_type<double> ();
+ check_type<long double> ();
++#if __HAVE_DISTINCT_FLOAT128
++ check_float128 ();
++#endif
+ return errors;
+ }
+
+diff --git a/sysdeps/powerpc/powerpc64le/Makefile b/sysdeps/powerpc/powerpc64le/Makefile
+index 19adbfa..dea2290 100644
+--- a/sysdeps/powerpc/powerpc64le/Makefile
++++ b/sysdeps/powerpc/powerpc64le/Makefile
+@@ -17,7 +17,8 @@ $(foreach suf,$(all-object-suffixes),$(objpfx)test-float128%$(suf)): CFLAGS += -
+ $(foreach suf,$(all-object-suffixes),$(objpfx)test-ifloat128%$(suf)): CFLAGS += -mfloat128
+ CFLAGS-libm-test-support-float128.c += -mfloat128
+ CFLAGS-test-math-issignaling.cc += -mfloat128
+-$(objpfx)test-float128% $(objpfx)test-ifloat128%: \
++CFLAGS-test-math-iszero.cc += -mfloat128
++$(objpfx)test-float128% $(objpfx)test-ifloat128% $(objpfx)test-math-iszero: \
+ gnulib-tests += $(f128-loader-link)
+ endif
+
+--
+2.9.5
+
+++ /dev/null
-From: H.J. Lu <hjl.tools@gmail.com>
-Date: Fri, 23 Jun 2017 21:38:46 +0000 (-0700)
-Subject: Avoid .symver on common symbols [BZ #21666]
-X-Git-Tag: glibc-2.26~241
-X-Git-Url: https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff_plain;h=388b4f1a02f3a801965028bbfcd48d905638b797
-
-Avoid .symver on common symbols [BZ #21666]
-
-The .symver directive on common symbol just creates a new common symbol,
-not an alias and the newer assembler with the bug fix for
-
-https://sourceware.org/bugzilla/show_bug.cgi?id=21661
-
-will issue an error. Before the fix, we got
-
-$ readelf -sW libc.so | grep "loc[12s]"
- 5109: 00000000003a0608 8 OBJECT LOCAL DEFAULT 36 loc1
- 5188: 00000000003a0610 8 OBJECT LOCAL DEFAULT 36 loc2
- 5455: 00000000003a0618 8 OBJECT LOCAL DEFAULT 36 locs
- 6575: 00000000003a05f0 8 OBJECT GLOBAL DEFAULT 36 locs@GLIBC_2.2.5
- 7156: 00000000003a05f8 8 OBJECT GLOBAL DEFAULT 36 loc1@GLIBC_2.2.5
- 7312: 00000000003a0600 8 OBJECT GLOBAL DEFAULT 36 loc2@GLIBC_2.2.5
-
-in libc.so. The versioned loc1, loc2 and locs have the wrong addresses.
-After the fix, we got
-
-$ readelf -sW libc.so | grep "loc[12s]"
- 6570: 000000000039e3b8 8 OBJECT GLOBAL DEFAULT 34 locs@GLIBC_2.2.5
- 7151: 000000000039e3c8 8 OBJECT GLOBAL DEFAULT 34 loc1@GLIBC_2.2.5
- 7307: 000000000039e3c0 8 OBJECT GLOBAL DEFAULT 34 loc2@GLIBC_2.2.5
-
- [BZ #21666]
- * misc/regexp.c (loc1): Add __attribute__ ((nocommon));
- (loc2): Likewise.
- (locs): Likewise.
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-[Backported from upstream commit
-388b4f1a02f3a801965028bbfcd48d905638b797, to fix the build with
-binutils 2.29.]
----
-diff --git a/misc/regexp.c b/misc/regexp.c
-index 19d76c0..eaea7c3 100644
---- a/misc/regexp.c
-+++ b/misc/regexp.c
-@@ -29,14 +29,15 @@
-
- #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_23)
-
--/* Define the variables used for the interface. */
--char *loc1;
--char *loc2;
-+/* Define the variables used for the interface. Avoid .symver on common
-+ symbol, which just creates a new common symbol, not an alias. */
-+char *loc1 __attribute__ ((nocommon));
-+char *loc2 __attribute__ ((nocommon));
- compat_symbol (libc, loc1, loc1, GLIBC_2_0);
- compat_symbol (libc, loc2, loc2, GLIBC_2_0);
-
- /* Although we do not support the use we define this variable as well. */
--char *locs;
-+char *locs __attribute__ ((nocommon));
- compat_symbol (libc, locs, locs, GLIBC_2_0);
-
-
--- /dev/null
+From 33f54cf4f81a51e5c8cbfb2408edd439bdee9435 Mon Sep 17 00:00:00 2001
+From: "Gabriel F. T. Gomes" <gabriel@inconstante.eti.br>
+Date: Wed, 20 Sep 2017 15:10:26 -0300
+Subject: [PATCH] Let fpclassify use the builtin when optimizing for size in
+ C++ mode (bug 22146)
+
+When optimization for size is on (-Os), fpclassify does not use the
+type-generic __builtin_fpclassify builtin, instead it uses __MATH_TG.
+However, when library support for float128 is available, __MATH_TG uses
+__builtin_types_compatible_p, which is not available in C++ mode.
+
+On the other hand, libstdc++ undefines (in cmath) many macros from
+math.h, including fpclassify, so that it can provide its own functions.
+However, during its configure tests, libstdc++ just tests for the
+availability of the macros (it does not undefine them, nor does it
+provide its own functions).
+
+Finally, when libstdc++ is configured with optimization for size
+enabled, its configure tests include math.h and get the definition of
+fpclassify that uses __MATH_TG (and __builtin_types_compatible_p).
+Since libstdc++ does not undefine the macros during its configure tests,
+they fail.
+
+This patch lets fpclassify use the builtin in C++ mode, even when
+optimization for size is on. This allows the configure test in
+libstdc++ to work.
+
+Tested for powerpc64le and x86_64.
+
+ [BZ #22146]
+ math/math.h: Let fpclassify use the builtin in C++ mode, even
+ when optimazing for size.
+
+(cherry picked from commit c5c4a626098ec884b8527356abdf2a4bb7b6bf27)
+
+[Romain rebase on glibc 2.26)
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ math/math.h | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/math/math.h b/math/math.h
+index 7c0fc6d..f9348ec 100644
+--- a/math/math.h
++++ b/math/math.h
+@@ -402,7 +402,13 @@ enum
+
+ /* Return number of classification appropriate for X. */
+ # if __GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__ \
+- && !defined __OPTIMIZE_SIZE__
++ && (!defined __OPTIMIZE_SIZE__ || defined __cplusplus)
++ /* The check for __cplusplus allows the use of the builtin, even
++ when optimization for size is on. This is provided for
++ libstdc++, only to let its configure test work when it is built
++ with -Os. No further use of this definition of fpclassify is
++ expected in C++ mode, since libstdc++ provides its own version
++ of fpclassify in cmath (which undefines fpclassify). */
+ # define fpclassify(x) __builtin_fpclassify (FP_NAN, FP_INFINITE, \
+ FP_NORMAL, FP_SUBNORMAL, FP_ZERO, x)
+ # else
+--
+2.9.5
+
+++ /dev/null
-From patchwork Wed Jun 14 06:19:50 2017
-Content-Type: text/plain; charset="utf-8"
-MIME-Version: 1.0
-Content-Transfer-Encoding: 7bit
-Subject: i686: Add missing IS_IN (libc) guards to vectorized strcspn
-From: Florian Weimer <fweimer@redhat.com>
-X-Patchwork-Id: 21003
-Message-Id: <20170614061950.400FE4010728F@oldenburg.str.redhat.com>
-To: libc-alpha@sourceware.org
-Date: Wed, 14 Jun 2017 08:19:50 +0200
-
-Since commit d957c4d3fa48d685ff2726c605c988127ef99395 (i386: Compile
-rtld-*.os with -mno-sse -mno-mmx -mfpmath=387), vector intrinsics can
-no longer be used in ld.so, even if the compiled code never makes it
-into the final ld.so link. This commit adds the missing IS_IN (libc)
-guard to the SSE 4.2 strcspn implementation, so that it can be used from
-ld.so in the future.
-
-2017-06-14 Florian Weimer <fweimer@redhat.com>
-
- * sysdeps/i386/i686/multiarch/strcspn-c.c: Add IS_IN (libc) guard.
- * sysdeps/i386/i686/multiarch/varshift.c: Likewise.
-
-[Thomas: fixes a build issue of glibc on x86:
-sysdeps/x86_64/multiarch/varshift.h:26:1: error: SSE vector return without SSE enabled changes the ABI]
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-
-diff --git a/sysdeps/i386/i686/multiarch/strcspn-c.c b/sysdeps/i386/i686/multiarch/strcspn-c.c
-index 6d61e19..ec230fb 100644
---- a/sysdeps/i386/i686/multiarch/strcspn-c.c
-+++ b/sysdeps/i386/i686/multiarch/strcspn-c.c
-@@ -1,2 +1,4 @@
--#define __strcspn_sse2 __strcspn_ia32
--#include <sysdeps/x86_64/multiarch/strcspn-c.c>
-+#if IS_IN (libc)
-+# define __strcspn_sse2 __strcspn_ia32
-+# include <sysdeps/x86_64/multiarch/strcspn-c.c>
-+#endif
-diff --git a/sysdeps/i386/i686/multiarch/varshift.c b/sysdeps/i386/i686/multiarch/varshift.c
-index 7760b96..6742a35 100644
---- a/sysdeps/i386/i686/multiarch/varshift.c
-+++ b/sysdeps/i386/i686/multiarch/varshift.c
-@@ -1 +1,3 @@
--#include <sysdeps/x86_64/multiarch/varshift.c>
-+#if IS_IN (libc)
-+# include <sysdeps/x86_64/multiarch/varshift.c>
-+#endif
+++ /dev/null
-commit db3d848e154b00071f4a5e729d5884efad410109
-Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
-Date: Wed Mar 15 15:44:59 2017 -0300
-
- Build divdi3 only for architecture that required it
-
- As noted in [1], divdi3 object is only exported in a handful ABIs
- (i386, m68k, powerpc32, s390-32, and ia64), however it is built
- for all current architectures regardless.
-
- This patch refact the make rules for this object to so only the
- aforementioned architectures that actually require it builds it.
-
- Also, to avoid internal PLT calls to the exported symbol from the
- module, glibc uses an internal header (symbol-hacks.h) which is
- unrequired (and in fact breaks the build for architectures that
- intend to get symbol definitions from libgcc.a). The patch also
- changes it to create its own header (divdi3-symbol-hacks.h) and
- adjust the architectures that require it accordingly.
-
- I checked the build/check (with run-built-tests=no) on the
- following architectures (which I think must cover all supported
- ABI/builds) using GCC 6.3:
-
- aarch64-linux-gnu
- alpha-linux-gnu
- arm-linux-gnueabihf
- hppa-linux-gnu
- ia64-linux-gnu
- m68k-linux-gnu
- microblaze-linux-gnu
- mips64-n32-linux-gnu
- mips-linux-gnu
- mips64-linux-gnu
- nios2-linux-gnu
- powerpc-linux-gnu
- powerpc-linux-gnu-power4
- powerpc64-linux-gnu
- powerpc64le-linux-gnu
- s390x-linux-gnu
- s390-linux-gnu
- sh4-linux-gnu
- sh4-linux-gnu-soft
- sparc64-linux-gnu
- sparcv9-linux-gnu
- tilegx-linux-gnu
- tilegx-linux-gnu-32
- tilepro-linux-gnu
- x86_64-linux-gnu
- x86_64-linux-gnu-x32
- i686-linux-gnu
-
- I only saw one regression on sparcv9-linux-gnu (extra PLT call to
- .udiv) which I address in next patch in the set. It also correctly
- build SH with GCC 7.0.1 (without any regression from c89721e25d).
-
- [1] https://sourceware.org/ml/libc-alpha/2017-03/msg00243.html
-
-Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
-
-diff --git a/sysdeps/i386/symbol-hacks.h b/sysdeps/i386/symbol-hacks.h
-new file mode 100644
-index 0000000000..36a13c83f7
---- /dev/null
-+++ b/sysdeps/i386/symbol-hacks.h
-@@ -0,0 +1,21 @@
-+/* Hacks needed for symbol manipulation. i386 version.
-+ Copyright (C) 2017 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
-+ <http://www.gnu.org/licenses/>. */
-+
-+#include <sysdeps/wordsize-32/divdi3-symbol-hacks.h>
-+
-+#include_next "symbol-hacks.h"
-diff --git a/sysdeps/m68k/symbol-hacks.h b/sysdeps/m68k/symbol-hacks.h
-new file mode 100644
-index 0000000000..e449d29810
---- /dev/null
-+++ b/sysdeps/m68k/symbol-hacks.h
-@@ -0,0 +1,21 @@
-+/* Hacks needed for symbol manipulation. m68k version.
-+ Copyright (C) 2017 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
-+ <http://www.gnu.org/licenses/>. */
-+
-+#include <sysdeps/wordsize-32/divdi3-symbol-hacks.h>
-+
-+#include_next "symbol-hacks.h"
-diff --git a/sysdeps/powerpc/powerpc32/symbol-hacks.h b/sysdeps/powerpc/powerpc32/symbol-hacks.h
-new file mode 100644
-index 0000000000..dbb3141621
---- /dev/null
-+++ b/sysdeps/powerpc/powerpc32/symbol-hacks.h
-@@ -0,0 +1,21 @@
-+/* Hacks needed for symbol manipulation. powerpc version.
-+ Copyright (C) 2017 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
-+ <http://www.gnu.org/licenses/>. */
-+
-+#include <sysdeps/wordsize-32/divdi3-symbol-hacks.h>
-+
-+#include_next "symbol-hacks.h"
-diff --git a/sysdeps/s390/s390-32/symbol-hacks.h b/sysdeps/s390/s390-32/symbol-hacks.h
-new file mode 100644
-index 0000000000..585c42365a
---- /dev/null
-+++ b/sysdeps/s390/s390-32/symbol-hacks.h
-@@ -0,0 +1,21 @@
-+/* Hacks needed for symbol manipulation. s390 version.
-+ Copyright (C) 2017 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
-+ <http://www.gnu.org/licenses/>. */
-+
-+#include <sysdeps/wordsize-32/divdi3-symbol-hacks.h>
-+
-+#include_next "symbol-hacks.h"
-diff --git a/sysdeps/unix/sysv/linux/i386/Makefile b/sysdeps/unix/sysv/linux/i386/Makefile
-index 6aac0dfe15..4080b8c966 100644
---- a/sysdeps/unix/sysv/linux/i386/Makefile
-+++ b/sysdeps/unix/sysv/linux/i386/Makefile
-@@ -26,6 +26,11 @@ endif
-
- ifeq ($(subdir),csu)
- sysdep-dl-routines += sysdep
-+ifeq (yes,$(build-shared))
-+sysdep_routines += divdi3
-+shared-only-routines += divdi3
-+CPPFLAGS-divdi3.c = -Din_divdi3_c
-+endif
- endif
-
- ifeq ($(subdir),nptl)
-diff --git a/sysdeps/unix/sysv/linux/m68k/Makefile b/sysdeps/unix/sysv/linux/m68k/Makefile
-index 5c50ce6927..ce1f696a6f 100644
---- a/sysdeps/unix/sysv/linux/m68k/Makefile
-+++ b/sysdeps/unix/sysv/linux/m68k/Makefile
-@@ -4,6 +4,11 @@ m68k-syntax-flag = -DMOTOROLA_SYNTAX
-
- ifeq ($(subdir),csu)
- sysdep_routines += m68k-helpers
-+ifeq (yes,$(build-shared))
-+sysdep_routines += divdi3
-+shared-only-routines += divdi3
-+CPPFLAGS-divdi3.c = -Din_divdi3_c
-+endif
- endif
-
- ifeq ($(subdir),misc)
-diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile b/sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile
-index 3d6c150582..1f45659ed1 100644
---- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile
-+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile
-@@ -1,2 +1,10 @@
- # See Makeconfig regarding the use of default-abi.
- default-abi := 32
-+
-+ifeq ($(subdir),csu)
-+ifeq (yes,$(build-shared))
-+sysdep_routines += divdi3
-+shared-only-routines += divdi3
-+CPPFLAGS-divdi3.c = -Din_divdi3_c
-+endif
-+endif
-diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/Makefile b/sysdeps/unix/sysv/linux/s390/s390-32/Makefile
-index da3b3c76b4..fd8cf92633 100644
---- a/sysdeps/unix/sysv/linux/s390/s390-32/Makefile
-+++ b/sysdeps/unix/sysv/linux/s390/s390-32/Makefile
-@@ -21,3 +21,11 @@ endif
- ifeq ($(subdir),stdlib)
- sysdep_routines += __makecontext_ret
- endif
-+
-+ifeq ($(subdir),csu)
-+ifeq (yes,$(build-shared))
-+sysdep_routines += divdi3
-+shared-only-routines += divdi3
-+CPPFLAGS-divdi3.c = -Din_divdi3_c
-+endif
-+endif
-diff --git a/sysdeps/wordsize-32/Makefile b/sysdeps/wordsize-32/Makefile
-deleted file mode 100644
-index 82beac44ed..0000000000
---- a/sysdeps/wordsize-32/Makefile
-+++ /dev/null
-@@ -1,7 +0,0 @@
--ifeq ($(subdir),csu)
--ifeq (yes,$(build-shared))
--sysdep_routines += divdi3
--shared-only-routines += divdi3
--CPPFLAGS-divdi3.c = -Din_divdi3_c
--endif
--endif
-diff --git a/sysdeps/wordsize-32/divdi3-symbol-hacks.h b/sysdeps/wordsize-32/divdi3-symbol-hacks.h
-new file mode 100644
-index 0000000000..6c90cb796d
---- /dev/null
-+++ b/sysdeps/wordsize-32/divdi3-symbol-hacks.h
-@@ -0,0 +1,31 @@
-+/* Hacks needed for divdi3 symbol manipulation.
-+ Copyright (C) 2004-2017 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
-+ <http://www.gnu.org/licenses/>. */
-+
-+/* A very dirty trick: gcc emits references to __divdi3, __udivdi3,
-+ __moddi3, and __umoddi3. These functions are exported and
-+ therefore we get PLTs. Unnecessarily so. Changing gcc is a big
-+ task which might not be worth it so we play tricks with the
-+ assembler.
-+ Note: in_divdi3_c is only used to avoid symbol alias on divdi3
-+ build itself. */
-+#if !defined __ASSEMBLER__ && !defined in_divdi3_c && IS_IN (libc) && defined SHARED
-+asm ("__divdi3 = __divdi3_internal");
-+asm ("__udivdi3 = __udivdi3_internal");
-+asm ("__moddi3 = __moddi3_internal");
-+asm ("__umoddi3 = __umoddi3_internal");
-+#endif
-diff --git a/sysdeps/wordsize-32/symbol-hacks.h b/sysdeps/wordsize-32/symbol-hacks.h
-deleted file mode 100644
-index 0aec1e0b97..0000000000
---- a/sysdeps/wordsize-32/symbol-hacks.h
-+++ /dev/null
-@@ -1,31 +0,0 @@
--/* Hacks needed for symbol manipulation.
-- Copyright (C) 2004-2017 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
-- <http://www.gnu.org/licenses/>. */
--
--#include_next "symbol-hacks.h"
--
--/* A very dirty trick: gcc emits references to __divdi3, __udivdi3,
-- __moddi3, and __umoddi3. These functions are exported and
-- therefore we get PLTs. Unnecessarily so. Changing gcc is a big
-- task which might not be worth it so we play tricks with the
-- assembler. */
--#if !defined __ASSEMBLER__ && !defined in_divdi3_c && IS_IN (libc) && defined SHARED
--asm ("__divdi3 = __divdi3_internal");
--asm ("__udivdi3 = __udivdi3_internal");
--asm ("__moddi3 = __moddi3_internal");
--asm ("__umoddi3 = __umoddi3_internal");
--#endif
# Locally calculated after checking pgp signature (glibc)
-sha256 067bd9bb3390e79aa45911537d13c3721f1d9d3769931a30c2681bfee66f23a0 glibc-2.25.tar.xz
+sha256 e54e0a934cd2bc94429be79da5e9385898d2306b9eaf3c92d5a77af96190f6bd glibc-2.26.tar.xz
#
################################################################################
-GLIBC_VERSION = 2.25
+GLIBC_VERSION = 2.26
GLIBC_SITE = $(BR2_GNU_MIRROR)/libc
GLIBC_SOURCE = glibc-$(GLIBC_VERSION).tar.xz
GLIBC_SRC_SUBDIR = .
projects / buildroot.git / commitdiff