From 262b8dd7da7d508dc1638d710e183ccc71581e8c Mon Sep 17 00:00:00 2001
From: Ed Maste <emaste@freebsd.org>
Date: Tue, 23 Jul 2013 18:37:11 +0000
Subject: [PATCH] elf-core: Add helper function for parsing FreeBSD NT_PRSTATUS

This avoids the use of the ELFPrStatus class, which returns to being
used only for Linux.

llvm-svn: 186976
---
 .../Process/elf-core/ProcessElfCore.cpp       | 20 ++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/lldb/source/Plugins/Process/elf-core/ProcessElfCore.cpp b/lldb/source/Plugins/Process/elf-core/ProcessElfCore.cpp
index b507e98195e2..a79fec66e33a 100644
--- a/lldb/source/Plugins/Process/elf-core/ProcessElfCore.cpp
+++ b/lldb/source/Plugins/Process/elf-core/ProcessElfCore.cpp
@@ -435,6 +435,20 @@ struct ELFNote
     }
 };
 
+static void
+ParseFreeBSDPrStatus(ThreadData *thread_data, DataExtractor &data,
+                     ArchSpec &arch)
+{
+    lldb::offset_t offset;
+    size_t len;
+
+    offset = 36;
+    thread_data->signo = data.GetU32(&offset);
+    offset = 48;
+    len = data.GetByteSize() - offset;
+    thread_data->gpregset = DataExtractor(data, offset, len);
+}
+
 static void
 ParseFreeBSDThrMisc(ThreadData *thread_data, DataExtractor &data)
 {
@@ -507,11 +521,7 @@ ProcessElfCore::ParseThreadContextsFromNoteSegment(const elf::ELFProgramHeader *
             {
                 case NT_FREEBSD_PRSTATUS:
                     have_prstatus = true;
-                    prstatus.Parse(note_data, arch);
-                    thread_data->signo = prstatus.pr_cursig;
-                    header_size = ELFPrStatus::GetSize(arch);
-                    len = note_data.GetByteSize() - header_size;
-                    thread_data->gpregset = DataExtractor(note_data, header_size, len);
+                    ParseFreeBSDPrStatus(thread_data, note_data, arch);
                     break;
                 case NT_FREEBSD_FPREGSET:
                     thread_data->fpregset = note_data;