From: Mark Wielaard <mark@klomp.org>
Date: Fri, 14 Dec 2018 13:32:27 +0000 (+0100)
Subject: arm64: Fix PTRACE_TRACEME memcheck/tests/linux/getregset.vgtest testcase.
X-Git-Tag: VALGRIND_3_15_0~133
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43fe4bc236d667257eeebfb4f6bcbe2b92aea455;p=thirdparty%2Fvalgrind.git

arm64: Fix PTRACE_TRACEME memcheck/tests/linux/getregset.vgtest testcase.

The sys_ptrace post didn't mark the thread as being in traceme mode.
This occassionally would make the memcheck/tests/linux/getregset.vgtest
testcase fail. With this patch it reliably passes.
---

diff --git a/coregrind/m_syswrap/syswrap-arm64-linux.c b/coregrind/m_syswrap/syswrap-arm64-linux.c
index 9ef54b40a2..650f5b9f0d 100644
--- a/coregrind/m_syswrap/syswrap-arm64-linux.c
+++ b/coregrind/m_syswrap/syswrap-arm64-linux.c
@@ -499,6 +499,9 @@ PRE(sys_ptrace)
 POST(sys_ptrace)
 {
    switch (ARG1) {
+   case VKI_PTRACE_TRACEME:
+         ML_(linux_POST_traceme)(tid);
+         break;
    case VKI_PTRACE_PEEKTEXT:
    case VKI_PTRACE_PEEKDATA:
    case VKI_PTRACE_PEEKUSR: