From 54b3002fce50cde57dd22b5e603ff1cb7dc69cc4 Mon Sep 17 00:00:00 2001
From: Omar Vega Ramos <ovruni@gnu.org.pe>
Date: Fri, 22 Sep 2017 11:18:32 -0500
Subject: Removing llvm38

---
 ...t-initialization-failure-with-newer-glibc.patch | 103 ---------------------
 1 file changed, 103 deletions(-)
 delete mode 100644 pcr/llvm38/msan-prevent-initialization-failure-with-newer-glibc.patch

(limited to 'pcr/llvm38/msan-prevent-initialization-failure-with-newer-glibc.patch')

diff --git a/pcr/llvm38/msan-prevent-initialization-failure-with-newer-glibc.patch b/pcr/llvm38/msan-prevent-initialization-failure-with-newer-glibc.patch
deleted file mode 100644
index 57387a6a1..000000000
--- a/pcr/llvm38/msan-prevent-initialization-failure-with-newer-glibc.patch
+++ /dev/null
@@ -1,103 +0,0 @@
-Index: lib/msan/msan_interceptors.cc
-===================================================================
---- lib/msan/msan_interceptors.cc	(revision 282231)
-+++ lib/msan/msan_interceptors.cc	(revision 282232)
-@@ -64,6 +64,23 @@
-   return in_interceptor_scope;
- }
- 
-+static uptr allocated_for_dlsym;
-+static const uptr kDlsymAllocPoolSize = 1024;
-+static uptr alloc_memory_for_dlsym[kDlsymAllocPoolSize];
-+
-+static bool IsInDlsymAllocPool(const void *ptr) {
-+  uptr off = (uptr)ptr - (uptr)alloc_memory_for_dlsym;
-+  return off < sizeof(alloc_memory_for_dlsym);
-+}
-+
-+static void *AllocateFromLocalPool(uptr size_in_bytes) {
-+  uptr size_in_words = RoundUpTo(size_in_bytes, kWordSize) / kWordSize;
-+  void *mem = (void *)&alloc_memory_for_dlsym[allocated_for_dlsym];
-+  allocated_for_dlsym += size_in_words;
-+  CHECK_LT(allocated_for_dlsym, kDlsymAllocPoolSize);
-+  return mem;
-+}
-+
- #define ENSURE_MSAN_INITED() do { \
-   CHECK(!msan_init_is_running); \
-   if (!msan_inited) { \
-@@ -227,7 +244,7 @@
- 
- INTERCEPTOR(void, free, void *ptr) {
-   GET_MALLOC_STACK_TRACE;
--  if (!ptr) return;
-+  if (!ptr || UNLIKELY(IsInDlsymAllocPool(ptr))) return;
-   MsanDeallocate(&stack, ptr);
- }
- 
-@@ -234,7 +251,7 @@
- #if !SANITIZER_FREEBSD
- INTERCEPTOR(void, cfree, void *ptr) {
-   GET_MALLOC_STACK_TRACE;
--  if (!ptr) return;
-+  if (!ptr || UNLIKELY(IsInDlsymAllocPool(ptr))) return;
-   MsanDeallocate(&stack, ptr);
- }
- #define MSAN_MAYBE_INTERCEPT_CFREE INTERCEPT_FUNCTION(cfree)
-@@ -907,27 +924,29 @@
- 
- INTERCEPTOR(void *, calloc, SIZE_T nmemb, SIZE_T size) {
-   GET_MALLOC_STACK_TRACE;
--  if (UNLIKELY(!msan_inited)) {
-+  if (UNLIKELY(!msan_inited))
-     // Hack: dlsym calls calloc before REAL(calloc) is retrieved from dlsym.
--    const SIZE_T kCallocPoolSize = 1024;
--    static uptr calloc_memory_for_dlsym[kCallocPoolSize];
--    static SIZE_T allocated;
--    SIZE_T size_in_words = ((nmemb * size) + kWordSize - 1) / kWordSize;
--    void *mem = (void*)&calloc_memory_for_dlsym[allocated];
--    allocated += size_in_words;
--    CHECK(allocated < kCallocPoolSize);
--    return mem;
--  }
-+    return AllocateFromLocalPool(nmemb * size);
-   return MsanCalloc(&stack, nmemb, size);
- }
- 
- INTERCEPTOR(void *, realloc, void *ptr, SIZE_T size) {
-   GET_MALLOC_STACK_TRACE;
-+  if (UNLIKELY(IsInDlsymAllocPool(ptr))) {
-+    uptr offset = (uptr)ptr - (uptr)alloc_memory_for_dlsym;
-+    uptr copy_size = Min(size, kDlsymAllocPoolSize - offset);
-+    void *new_ptr = AllocateFromLocalPool(size);
-+    internal_memcpy(new_ptr, ptr, copy_size);
-+    return new_ptr;
-+  }
-   return MsanReallocate(&stack, ptr, size, sizeof(u64), false);
- }
- 
- INTERCEPTOR(void *, malloc, SIZE_T size) {
-   GET_MALLOC_STACK_TRACE;
-+  if (UNLIKELY(!msan_inited))
-+    // Hack: dlsym calls malloc before REAL(malloc) is retrieved from dlsym.
-+    return AllocateFromLocalPool(size);
-   return MsanReallocate(&stack, nullptr, size, sizeof(u64), false);
- }
- 
-Index: lib/asan/asan_malloc_linux.cc
-===================================================================
---- lib/asan/asan_malloc_linux.cc	(revision 282231)
-+++ lib/asan/asan_malloc_linux.cc	(revision 282232)
-@@ -78,7 +78,11 @@
-   if (UNLIKELY(IsInDlsymAllocPool(ptr))) {
-     uptr offset = (uptr)ptr - (uptr)alloc_memory_for_dlsym;
-     uptr copy_size = Min(size, kDlsymAllocPoolSize - offset);
--    void *new_ptr = asan_malloc(size, &stack);
-+    void *new_ptr;
-+    if (UNLIKELY(!asan_inited))
-+      new_ptr = AllocateFromLocalPool(size);
-+    else
-+      new_ptr = asan_malloc(size, &stack);
-     internal_memcpy(new_ptr, ptr, copy_size);
-     return new_ptr;
-   }
-- 
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