diff options
Diffstat (limited to 'lib/asan/asan_descriptions.cc')
-rw-r--r-- | lib/asan/asan_descriptions.cc | 39 |
1 files changed, 30 insertions, 9 deletions
diff --git a/lib/asan/asan_descriptions.cc b/lib/asan/asan_descriptions.cc index 822a6a62d64e..86c6af7d9f75 100644 --- a/lib/asan/asan_descriptions.cc +++ b/lib/asan/asan_descriptions.cc @@ -122,6 +122,7 @@ static void GetAccessToHeapChunkInformation(ChunkAccess *descr, } descr->chunk_begin = chunk.Beg(); descr->chunk_size = chunk.UsedSize(); + descr->user_requested_alignment = chunk.UserRequestedAlignment(); descr->alloc_type = chunk.GetAllocType(); } @@ -150,7 +151,7 @@ static void PrintHeapChunkAccess(uptr addr, const ChunkAccess &descr) { str.append(" %zu-byte region [%p,%p)\n", descr.chunk_size, (void *)descr.chunk_begin, (void *)(descr.chunk_begin + descr.chunk_size)); - str.append("%s", d.EndLocation()); + str.append("%s", d.Default()); Printf("%s", str.data()); } @@ -260,7 +261,7 @@ static void PrintAccessAndVarIntersection(const StackVarDescr &var, uptr addr, // FIXME: we may want to also print the size of the access here, // but in case of accesses generated by memset it may be confusing. str.append("%s <== Memory access at offset %zd %s this variable%s\n", - d.Location(), addr, pos_descr, d.EndLocation()); + d.Location(), addr, pos_descr, d.Default()); } else { str.append("\n"); } @@ -295,7 +296,7 @@ static void DescribeAddressRelativeToGlobal(uptr addr, uptr access_size, MaybeDemangleGlobalName(g.name)); PrintGlobalLocation(&str, g); str.append("' (0x%zx) of size %zu\n", g.beg, g.size); - str.append("%s", d.EndLocation()); + str.append("%s", d.Default()); PrintGlobalNameIfASCII(&str, g); Printf("%s", str.data()); } @@ -335,6 +336,26 @@ void GlobalAddressDescription::Print(const char *bug_type) const { } } +bool GlobalAddressDescription::PointsInsideTheSameVariable( + const GlobalAddressDescription &other) const { + if (size == 0 || other.size == 0) return false; + + for (uptr i = 0; i < size; i++) { + const __asan_global &a = globals[i]; + for (uptr j = 0; j < other.size; j++) { + const __asan_global &b = other.globals[j]; + if (a.beg == b.beg && + a.beg <= addr && + b.beg <= other.addr && + (addr + access_size) < (a.beg + a.size) && + (other.addr + other.access_size) < (b.beg + b.size)) + return true; + } + } + + return false; +} + void StackAddressDescription::Print() const { Decorator d; char tname[128]; @@ -343,10 +364,10 @@ void StackAddressDescription::Print() const { ThreadNameWithParenthesis(tid, tname, sizeof(tname))); if (!frame_descr) { - Printf("%s\n", d.EndLocation()); + Printf("%s\n", d.Default()); return; } - Printf(" at offset %zu in frame%s\n", offset, d.EndLocation()); + Printf(" at offset %zu in frame%s\n", offset, d.Default()); // Now we print the frame where the alloca has happened. // We print this frame as a stack trace with one element. @@ -355,7 +376,7 @@ void StackAddressDescription::Print() const { // previously. That's unfortunate, but I have no better solution, // especially given that the alloca may be from entirely different place // (e.g. use-after-scope, or different thread's stack). - Printf("%s", d.EndLocation()); + Printf("%s", d.Default()); StackTrace alloca_stack(&frame_pc, 1); alloca_stack.Print(); @@ -405,18 +426,18 @@ void HeapAddressDescription::Print() const { Printf("%sfreed by thread T%d%s here:%s\n", d.Allocation(), free_thread->tid, ThreadNameWithParenthesis(free_thread, tname, sizeof(tname)), - d.EndAllocation()); + d.Default()); StackTrace free_stack = GetStackTraceFromId(free_stack_id); free_stack.Print(); Printf("%spreviously allocated by thread T%d%s here:%s\n", d.Allocation(), alloc_thread->tid, ThreadNameWithParenthesis(alloc_thread, tname, sizeof(tname)), - d.EndAllocation()); + d.Default()); } else { Printf("%sallocated by thread T%d%s here:%s\n", d.Allocation(), alloc_thread->tid, ThreadNameWithParenthesis(alloc_thread, tname, sizeof(tname)), - d.EndAllocation()); + d.Default()); } alloc_stack.Print(); DescribeThread(GetCurrentThread()); |