From 75ed08fb0bcd3306897d7dfbad189ea4d2fb8919 Mon Sep 17 00:00:00 2001
From: Sijie Chen <sijiec@google.com>
Date: Thu, 23 May 2024 00:10:07 +0000
Subject: [PATCH] [Berberis][CrashReporting] Add riscv case for thread local
 retrieve

As title.

Bug: 339287219
Test: NA
Change-Id: Ia75659330d1203f4f1fbaf019d41cb72c3986cd4
---
 debuggerd/crash_dump.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/debuggerd/crash_dump.cpp b/debuggerd/crash_dump.cpp
index 77d4a07af..1c1fb8a59 100644
--- a/debuggerd/crash_dump.cpp
+++ b/debuggerd/crash_dump.cpp
@@ -449,7 +449,16 @@ static bool GetGuestRegistersFromCrashedProcess([[maybe_unused]] pid_t tid,
 
   if (ptrace(PTRACE_GETREGSET, tid, NT_ARM_TLS, &pt_iov) != 0) {
     PLOG(ERROR) << "failed to read thread register for thread " << tid;
+    return false;
   }
+#elif defined(__riscv)
+  struct user_regs_struct regs;
+  struct iovec pt_iov = {.iov_base = &regs, .iov_len = sizeof(regs)};
+  if (ptrace(PTRACE_GETREGSET, tid, NT_PRSTATUS, &pt_iov) != 0) {
+    PLOG(ERROR) << "failed to read thread register for thread " << tid;
+    return false;
+  }
+  base = reinterpret_cast<uintptr_t>(regs.tp);
 #else
   // TODO(b/339287219): Add case for Riscv host.
   return false;