46a751081d
gcc 9.3.0 and glibc 2.31 (found in the base install of Ubuntu 20.04)
cause the gcc package to error during build with the error:
"size of array 'assertion_failed__####' is negative"
Previous to this fix, the error was resolved for v8.1.0 <= gcc <= v9.2.0
via two patches.
This fix backports those patches for v5.3.0 <= gcc <= v7.4.0
Potentially these patches need to be backported to versions of gcc
before v5.3.0, but other compile issues need to be resolved for earlier
versions of gcc first.
Fixes #16968
70 lines
2.8 KiB
Diff
70 lines
2.8 KiB
Diff
From 75003cdd23c310ec385344e8040d490e8dd6d2be Mon Sep 17 00:00:00 2001
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From: Jakub Jelinek <jakub@redhat.com>
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Date: Fri, 20 Dec 2019 17:58:35 +0100
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Subject: [PATCH] backport: re PR sanitizer/92154 (new glibc breaks arm
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bootstrap due to libsanitizer)
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Backported from mainline
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2019-11-26 Jakub Jelinek <jakub@redhat.com>
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Backported for version 7.1.0 <= gcc <= 7.4.0
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2020-06-05 John L. Jolly <john.jolly@gmail.com>
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PR sanitizer/92154
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* sanitizer_common/sanitizer_platform_limits_posix.h: Cherry-pick
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llvm-project revision 947f9692440836dcb8d88b74b69dd379d85974ce.
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* sanitizer_common/sanitizer_platform_limits_posix.cc: Likewise.
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From-SVN: r279653
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---
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libsanitizer/ChangeLog | 10 ++++++++++
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.../sanitizer_platform_limits_posix.cc | 9 +++------
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.../sanitizer_platform_limits_posix.h | 15 +--------------
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3 files changed, 14 insertions(+), 20 deletions(-)
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diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
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index 06a605ff4670..d823a12190c0 100644
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--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
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+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
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@@ -1156,12 +1156,9 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
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CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
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CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
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CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
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-#if (!defined(__aarch64__) || !SANITIZER_LINUX || __GLIBC_PREREQ (2, 21)) && \
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- !defined(__arm__)
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-/* On aarch64 glibc 2.20 and earlier provided incorrect mode field. */
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-/* On Arm glibc 2.31 and later provide a different mode field, this field is
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- never used by libsanitizer so we can simply ignore this assert for all glibc
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- versions. */
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+#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
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+/* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
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+ on many architectures. */
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CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
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#endif
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diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
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index 73af92af1e8f..6a673a7c9959 100644
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--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
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+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
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@@ -211,20 +211,13 @@ namespace __sanitizer {
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unsigned long __unused1;
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unsigned long __unused2;
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#elif defined(__sparc__)
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-# if defined(__arch64__)
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unsigned mode;
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- unsigned short __pad1;
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-# else
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- unsigned short __pad1;
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- unsigned short mode;
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unsigned short __pad2;
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-# endif
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unsigned short __seq;
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unsigned long long __unused1;
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unsigned long long __unused2;
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#else
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- unsigned short mode;
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- unsigned short __pad1;
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+ unsigned int mode;
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unsigned short __seq;
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unsigned short __pad2;
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#if defined(__x86_64__) && !defined(_LP64)
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