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1 From 75003cdd23c310ec385344e8040d490e8dd6d2be Mon Sep 17 00:00:00 2001
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2 From: Jakub Jelinek <jakub@redhat.com>
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3 Date: Fri, 20 Dec 2019 17:58:35 +0100
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4 Subject: [PATCH] backport: re PR sanitizer/92154 (new glibc breaks arm
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5 bootstrap due to libsanitizer)
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6
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7 Backported from mainline
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8 2019-11-26 Jakub Jelinek <jakub@redhat.com>
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9
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10 PR sanitizer/92154
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11 * sanitizer_common/sanitizer_platform_limits_posix.h: Cherry-pick
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12 llvm-project revision 947f9692440836dcb8d88b74b69dd379d85974ce.
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13 * sanitizer_common/sanitizer_platform_limits_posix.cc: Likewise.
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14
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15 From-SVN: r279653
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16 ---
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17 libsanitizer/ChangeLog | 10 ++++++++++
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18 .../sanitizer_platform_limits_posix.cc | 9 +++------
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19 .../sanitizer_platform_limits_posix.h | 15 +--------------
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20 3 files changed, 14 insertions(+), 20 deletions(-)
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21
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22 diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
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23 index 06a605ff4670..d823a12190c0 100644
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24 --- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
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25 +++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
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26 @@ -1156,12 +1156,9 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
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27 CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
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28 CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
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29 CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
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30 -#if (!defined(__aarch64__) || !SANITIZER_LINUX || __GLIBC_PREREQ (2, 21)) && \
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31 - !defined(__arm__)
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32 -/* On aarch64 glibc 2.20 and earlier provided incorrect mode field. */
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33 -/* On Arm glibc 2.31 and later provide a different mode field, this field is
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34 - never used by libsanitizer so we can simply ignore this assert for all glibc
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35 - versions. */
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36 +#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
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37 +/* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
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38 + on many architectures. */
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39 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
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40 #endif
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41
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42 diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
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43 index 73af92af1e8f..6a673a7c9959 100644
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44 --- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
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45 +++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
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46 @@ -211,26 +211,13 @@ namespace __sanitizer {
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47 u64 __unused1;
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48 u64 __unused2;
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49 #elif defined(__sparc__)
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50 -#if defined(__arch64__)
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51 unsigned mode;
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52 - unsigned short __pad1;
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53 -#else
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54 - unsigned short __pad1;
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55 - unsigned short mode;
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56 unsigned short __pad2;
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57 -#endif
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58 unsigned short __seq;
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59 unsigned long long __unused1;
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60 unsigned long long __unused2;
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61 -#elif defined(__mips__) || defined(__aarch64__) || defined(__s390x__)
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62 - unsigned int mode;
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63 - unsigned short __seq;
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64 - unsigned short __pad1;
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65 - unsigned long __unused1;
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66 - unsigned long __unused2;
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67 #else
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68 - unsigned short mode;
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69 - unsigned short __pad1;
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70 + unsigned int mode;
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71 unsigned short __seq;
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72 unsigned short __pad2;
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73 #if defined(__x86_64__) && !defined(_LP64)
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