gcc: backporting fix for glibc 2.31 (#15403)

* backporting fix for building gcc >= 8.1.0 and gcc <= 9.2.0 with binutils 2.31

* removed trailing whitespace
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Mathias Anselmann 2020-03-10 22:27:07 +01:00 committed by GitHub
parent 4ef0442a01
commit fc78456547
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3 changed files with 114 additions and 0 deletions

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@ -0,0 +1,37 @@
From ce9568e9e9cf6094be30e748821421e703754ffc Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 8 Nov 2019 19:53:18 +0100
Subject: [PATCH] backport: re PR sanitizer/92154 (new glibc breaks arm
bootstrap due to libsanitizer)
Backported from mainline
2019-10-22 Tamar Christina <tamar.christina@arm.com>
PR sanitizer/92154
* sanitizer_common/sanitizer_platform_limits_posix.cc:
Cherry-pick compiler-rt revision r375220.
From-SVN: r277981
---
libsanitizer/ChangeLog | 9 +++++++++
.../sanitizer_common/sanitizer_platform_limits_posix.cc | 6 +++++-
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
index 6cd4a5bac8b0..06a605ff4670 100644
--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
@@ -1156,8 +1156,12 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
-#if !defined(__aarch64__) || !SANITIZER_LINUX || __GLIBC_PREREQ (2, 21)
+#if (!defined(__aarch64__) || !SANITIZER_LINUX || __GLIBC_PREREQ (2, 21)) && \
+ !defined(__arm__)
/* On aarch64 glibc 2.20 and earlier provided incorrect mode field. */
+/* On Arm glibc 2.31 and later provide a different mode field, this field is
+ never used by libsanitizer so we can simply ignore this assert for all glibc
+ versions. */
CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
#endif

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@ -0,0 +1,73 @@
From 75003cdd23c310ec385344e8040d490e8dd6d2be Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 20 Dec 2019 17:58:35 +0100
Subject: [PATCH] backport: re PR sanitizer/92154 (new glibc breaks arm
bootstrap due to libsanitizer)
Backported from mainline
2019-11-26 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/92154
* sanitizer_common/sanitizer_platform_limits_posix.h: Cherry-pick
llvm-project revision 947f9692440836dcb8d88b74b69dd379d85974ce.
* sanitizer_common/sanitizer_platform_limits_posix.cc: Likewise.
From-SVN: r279653
---
libsanitizer/ChangeLog | 10 ++++++++++
.../sanitizer_platform_limits_posix.cc | 9 +++------
.../sanitizer_platform_limits_posix.h | 15 +--------------
3 files changed, 14 insertions(+), 20 deletions(-)
diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
index 06a605ff4670..d823a12190c0 100644
--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
@@ -1156,12 +1156,9 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
-#if (!defined(__aarch64__) || !SANITIZER_LINUX || __GLIBC_PREREQ (2, 21)) && \
- !defined(__arm__)
-/* On aarch64 glibc 2.20 and earlier provided incorrect mode field. */
-/* On Arm glibc 2.31 and later provide a different mode field, this field is
- never used by libsanitizer so we can simply ignore this assert for all glibc
- versions. */
+#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
+/* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
+ on many architectures. */
CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
#endif
diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
index 73af92af1e8f..6a673a7c9959 100644
--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -211,26 +211,13 @@ namespace __sanitizer {
u64 __unused1;
u64 __unused2;
#elif defined(__sparc__)
-#if defined(__arch64__)
unsigned mode;
- unsigned short __pad1;
-#else
- unsigned short __pad1;
- unsigned short mode;
unsigned short __pad2;
-#endif
unsigned short __seq;
unsigned long long __unused1;
unsigned long long __unused2;
-#elif defined(__mips__) || defined(__aarch64__) || defined(__s390x__)
- unsigned int mode;
- unsigned short __seq;
- unsigned short __pad1;
- unsigned long __unused1;
- unsigned long __unused2;
#else
- unsigned short mode;
- unsigned short __pad1;
+ unsigned int mode;
unsigned short __seq;
unsigned short __pad2;
#if defined(__x86_64__) && !defined(_LP64)

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@ -230,6 +230,10 @@ class Gcc(AutotoolsPackage, GNUMirrorPackage):
patch('piclibs.patch', when='+piclibs') patch('piclibs.patch', when='+piclibs')
patch('gcc-backport.patch', when='@4.7:4.9.2,5:5.3') patch('gcc-backport.patch', when='@4.7:4.9.2,5:5.3')
# Backport libsanitizer patch for glibc >= 2.31 and 8.1.0 <= gcc <= 9.2.0
# https://bugs.gentoo.org/708346
patch('glibc-2.31-libsanitizer-1.patch', when='@8.1.0:9.2.0')
patch('glibc-2.31-libsanitizer-2.patch', when='@8.1.0:9.2.0')
# Older versions do not compile with newer versions of glibc # Older versions do not compile with newer versions of glibc
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81712 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81712
patch('ucontext_t.patch', when='@4.9,5.1:5.4,6.1:6.4,7.1') patch('ucontext_t.patch', when='@4.9,5.1:5.4,6.1:6.4,7.1')