bcm5719-llvm/compiler-rt/lib/sanitizer_common, branch meklort-10.0.1

Summary: update macro for OFF_T so that sanitizer works on AARCH64.

2020-01-10T21:34:49+00:00

Reviewers: vitalybuka, eugenis, MaskRay Reviewed By: eugenis, MaskRay Subscribers: MaskRay, kristof.beyls, #sanitizers, llvm-commits, jkz, scw Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D72367

[msan] Fix underflow in qsort interceptor.

2020-01-07T00:12:52+00:00

[msan] Check qsort input.

2020-01-06T23:07:02+00:00

Summary: Qsort interceptor suppresses all checks by unpoisoning the data in the wrapper of a comparator function, and then unpoisoning the output array as well. This change adds an explicit run of the comparator on all elements of the input array to catch any sanitizer bugs. Reviewers: vitalybuka Subscribers: #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D71780

[compiler-rt] [netbsd] Switch to syscall for ThreadSelfTlsTcb()

2020-01-03T01:40:52+00:00

This change avoids using internal, namespaced per-CPU calls that are not a stable interface to read the TSL base value.

[sanitizer] Link Sanitizer-x86_64-Test-Nolibc with -static

2019-12-27T23:25:08+00:00

Pass -static so that clang will not pass -Wl,--dynamic-linker,... to the linker. The test is not expected to run under a ld.so. (Technically it works under a ld.so but glibc expects to see a PT_DYNAMIC. lld intentionally does not follow GNU ld's complex rules regarding PT_DYNAMIC.) This allows commit 1417558e4a61794347c6bfbafaff7cd96985b2c3 to be relanded.

Reland "[msan] Intercept qsort, qsort_r."

2019-12-27T19:29:00+00:00

This reverts commit 8fcce5ac73d49981656d9126e6c88391c1f6bf01. I spoke too soon, the revert does not actually cause the startup crash to go away.

Revert "[msan] Intercept qsort, qsort_r."

2019-12-27T19:24:07+00:00

This reverts commit 7a9ebe95125ea87a494d0c18f44f10bd70e12188, and dependent commit 54c522420347e58aa7bae1892cf5c5672b57c875, which disables qsort interception for some iOS platforms. After this change, the -Nolibc sanitizer common test binary crashes on startup on my regular Linux workstation, as well as on our bots: https://ci.chromium.org/p/chromium/builders/try/linux_upload_clang/740 ******************** Failing Tests (1): SanitizerCommon-Unit :: ./Sanitizer-x86_64-Test/SanitizerCommon.NolibcMain Loading it up in gdb shows that it crashes during relocation processing, which suggests that some glibc loader versions do not support the THREADLOCAL data added in this interceptor.

[compiler-rt] [netbsd] Add support for versioned statvfs interceptors

2019-12-27T17:50:14+00:00

Summary: Add support for NetBSD 9.0 and newer versions of interceptors operating on struct statvfs: fstatvfs, fstatvfs1, getmntinfo, getvfsstat, statvfs, statvfs1. The default promoted interceptors are for NetBSD 9.99.26. Older ones (currently 9.0) are kept in a new NetBSD specific file: /sanitizer_common_interceptors_netbsd_compat.inc. This file defines compat interceptors and mangles `INIT_*` macros, concatenating the current interceptors and the compat ones. This redefinition is not elegant, but it avoids preprocessor madness. Define struct_statvfs90_sz for the compat purposes. Reviewers: mgorny, kcc, vitalybuka, joerg Reviewed By: mgorny Subscribers: dberris, llvm-commits, #sanitizers Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D71700

Temporarily Revert "[compiler-rt] [netbsd] Add support for versioned statvfs interceptors"

2019-12-27T02:40:20+00:00

as it's failing the netbsd specific linter parts of the sanitizer linter: llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors_netbsd_compat.inc:23: Lines should be <= 80 characters long [whitespace/line_length] llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.cpp:2450: Do not use variable-length arrays. Use an appropriately named ('k' followed by CamelCase) compile-time constant for the size. This reverts commit 78f714f824fac8aa3fdd85908c41538bccefb959.

[compiler-rt] [netbsd] Add support for versioned statvfs interceptors

2019-12-27T00:15:39+00:00