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sanitizer: update to version 10.3.0

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Issue #4094
This commit is contained in:
Christian Prochaska 2021-04-04 23:42:20 +02:00 committed by Christian Helmuth
parent 4a4b754bf2
commit d5e4ffd191
7 changed files with 150 additions and 111 deletions
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42
repos/libports/lib/mk/libsanitizer_common.mk
View File

@ -2,31 +2,33 @@ SANITIZER_PORT_DIR := $(call select_from_ports,sanitizer)
SANITIZER_DIR := $(SANITIZER_PORT_DIR)/src/lib/sanitizer
SRC_CC = sanitizer_allocator.cc \
SRC_CC = sanitizer_allocator.cpp \
sanitizer_common.cc \
sanitizer_common_libcdep.cc \
sanitizer_coverage_libcdep_new.cc \
sanitizer_file.cc \
sanitizer_flag_parser.cc \
sanitizer_flags.cc \
sanitizer_common_libcdep.cpp \
sanitizer_coverage_libcdep_new.cpp \
sanitizer_file.cpp \
sanitizer_flag_parser.cpp \
sanitizer_flags.cpp \
sanitizer_genode.cc \
sanitizer_libc.cc \
sanitizer_persistent_allocator.cc \
sanitizer_printf.cc \
sanitizer_stackdepot.cc \
sanitizer_stacktrace.cc \
sanitizer_stacktrace_libcdep.cc \
sanitizer_stacktrace_printer.cc \
sanitizer_suppressions.cc \
sanitizer_symbolizer.cc \
sanitizer_symbolizer_libbacktrace.cc \
sanitizer_symbolizer_libcdep.cc \
sanitizer_symbolizer_posix_libcdep.cc \
sanitizer_termination.cc
sanitizer_libc.cpp \
sanitizer_persistent_allocator.cpp \
sanitizer_printf.cpp \
sanitizer_stackdepot.cpp \
sanitizer_stacktrace.cpp \
sanitizer_stacktrace_libcdep.cpp \
sanitizer_stacktrace_printer.cpp \
sanitizer_suppressions.cpp \
sanitizer_symbolizer.cpp \
sanitizer_symbolizer_libbacktrace.cpp \
sanitizer_symbolizer_libcdep.cpp \
sanitizer_symbolizer_posix_libcdep.cpp \
sanitizer_symbolizer_report.cpp \
sanitizer_termination.cpp
INC_DIR += $(SANITIZER_DIR)
vpath %.cc $(SANITIZER_DIR)/sanitizer_common
vpath %.cc $(SANITIZER_DIR)/sanitizer_common
vpath %.cpp $(SANITIZER_DIR)/sanitizer_common
SHARED_LIB = yes

19
repos/libports/lib/mk/libubsan.mk
View File

@ -2,14 +2,15 @@ SANITIZER_PORT_DIR := $(call select_from_ports,sanitizer)
SANITIZER_DIR := $(SANITIZER_PORT_DIR)/src/lib/sanitizer
SRC_CC = ubsan_diag.cc \
ubsan_flags.cc \
ubsan_handlers.cc \
ubsan_handlers_cxx.cc \
ubsan_init.cc \
ubsan_type_hash.cc \
ubsan_type_hash_itanium.cc \
ubsan_value.cc
SRC_CC = ubsan_diag.cpp \
ubsan_flags.cpp \
ubsan_handlers.cpp \
ubsan_handlers_cxx.cpp \
ubsan_init.cpp \
ubsan_monitor.cpp \
ubsan_type_hash.cpp \
ubsan_type_hash_itanium.cpp \
ubsan_value.cpp
CC_OPT += -DCAN_SANITIZE_UB=1 -DUBSAN_CAN_USE_CXXABI=1
@ -17,7 +18,7 @@ LIBS += libsanitizer_common
INC_DIR += $(SANITIZER_DIR)
vpath %.cc $(SANITIZER_DIR)/ubsan
vpath %.cpp $(SANITIZER_DIR)/ubsan
SHARED_LIB = yes

2
repos/libports/lib/symbols/libsanitizer_common
View File

@ -203,7 +203,7 @@ _ZN11__sanitizer21ScopedErrorReportLockC2Ev T
_ZN11__sanitizer21ScopedErrorReportLockD1Ev T
_ZN11__sanitizer21ScopedErrorReportLockD2Ev T
_ZN11__sanitizer21SetSandboxingCallbackEPFvvE T
_ZN11__sanitizer21common_flags_dont_useE B 232
_ZN11__sanitizer21common_flags_dont_useE B 248
_ZN11__sanitizer22AllocatorMayReturnNullEv T
_ZN11__sanitizer22CatastrophicErrorWriteEPKcm T
_ZN11__sanitizer22IsAllocatorOutOfMemoryEv T

2
repos/libports/lib/symbols/libubsan
View File

@ -8,7 +8,7 @@ _ZN7__ubsan12ScopedReportD1Ev T
_ZN7__ubsan12ScopedReportD2Ev T
_ZN7__ubsan12ignoreReportENS_14SourceLocationENS_13ReportOptionsENS_9ErrorTypeE T
_ZN7__ubsan14IsPCSuppressedENS_9ErrorTypeEmPKc T
_ZN7__ubsan14TypeCheckKindsE D 88
_ZN7__ubsan14TypeCheckKindsE D 96
_ZN7__ubsan15InitializeFlagsEv T
_ZN7__ubsan16InitAsStandaloneEv T
_ZN7__ubsan16checkDynamicTypeEPvS0_m T

2
repos/libports/ports/sanitizer.hash
View File

@ -1 +1 @@
3ac05b0fdf5b49cd1b375afe08095c4c1a6c5289
58ab991bee9d68f213ae71f04c796de0490f3b0e

4
repos/libports/ports/sanitizer.port
View File

@ -1,9 +1,9 @@
LICENSE := LGPL
VERSION := 8.3.0
VERSION := 10.3.0
DOWNLOADS := sanitizer.archive
URL(sanitizer) := ftp://ftp.fu-berlin.de/gnu/gcc/gcc-$(VERSION)/gcc-$(VERSION).tar.xz
SHA(sanitizer) := 64baadfe6cc0f4947a84cb12d7f0dfaf45bb58b7e92461639596c21e02d97d2c
SHA(sanitizer) := 64f404c1a650f27fc33da242e1f2df54952e3963a49e06e73f6940f3223ac344
DIR(sanitizer) := src/lib/sanitizer
SIG(sanitizer) := ${URL(gcc)}
KEY(sanitizer) := GNU

190
repos/libports/src/lib/sanitizer/sanitizer.patch
View File

@ -4,24 +4,26 @@ From: Christian Prochaska <christian.prochaska@genode-labs.com>
---
sanitizer_common/sanitizer_genode.cc | 345 ++++++++++++++++++++
sanitizer_common/sanitizer_genode.cc | 331 ++++++++++++++++++++
sanitizer_common/sanitizer_internal_defs.h | 6
sanitizer_common/sanitizer_platform.h | 4
sanitizer_common/sanitizer_posix.h | 2
sanitizer_common/sanitizer_printf.cc | 2
sanitizer_common/sanitizer_printf.cpp | 2
sanitizer_common/sanitizer_stacktrace.h | 2
sanitizer_common/sanitizer_symbolizer_libcdep.cc | 10 -
.../sanitizer_symbolizer_posix_libcdep.cc | 31 +-
ubsan/ubsan_diag.cc | 4
9 files changed, 391 insertions(+), 15 deletions(-)
sanitizer_common/sanitizer_symbolizer_libcdep.cpp | 10 -
.../sanitizer_symbolizer_posix_libcdep.cpp | 29 +-
sanitizer_common/sanitizer_symbolizer_report.cpp | 4
ubsan/ubsan_diag.cpp | 4
ubsan/ubsan_flags.cpp | 6
11 files changed, 385 insertions(+), 15 deletions(-)
create mode 100644 sanitizer_common/sanitizer_genode.cc
diff --git a/sanitizer_common/sanitizer_genode.cc b/sanitizer_common/sanitizer_genode.cc
new file mode 100644
index 0000000..52dda98
index 0000000..03b1740
--- /dev/null
+++ b/sanitizer_common/sanitizer_genode.cc
@@ -0,0 +1,345 @@
@@ -0,0 +1,331 @@
+/*
+ * \brief Genode-specific functions from sanitizer_common.h
+ * and sanitizer_libc.h
@ -132,12 +134,6 @@ index 0000000..52dda98
+}
+
+
+void __sanitizer::PrepareForSandboxing(__sanitizer_sandbox_arguments *args)
+{
+ Genode::error("sanitizer: ", __func__, " called");
+}
+
+
+const char *__sanitizer::GetEnv(const char *name)
+{
+ if (verbose)
@ -282,14 +278,6 @@ index 0000000..52dda98
+}
+
+
+bool __sanitizer::RenameFile(const char *oldpath, const char *newpath,
+ error_t *error_p)
+{
+ Genode::error("sanitizer: ", __func__, " called");
+ return false;
+}
+
+
+void *__sanitizer::MapWritableFileToMemory(void *addr, uptr size, fd_t fd,
+ OFF_T offset)
+{
@ -368,10 +356,10 @@ index 0000000..52dda98
+ return false;
+}
diff --git a/sanitizer_common/sanitizer_internal_defs.h b/sanitizer_common/sanitizer_internal_defs.h
index edd6a21..a927498 100644
index 0022630..3ca8b9f 100644
--- a/sanitizer_common/sanitizer_internal_defs.h
+++ b/sanitizer_common/sanitizer_internal_defs.h
@@ -13,6 +13,8 @@
@@ -14,6 +14,8 @@
#include "sanitizer_platform.h"
@ -380,14 +368,14 @@ index edd6a21..a927498 100644
#ifndef SANITIZER_DEBUG
# define SANITIZER_DEBUG 0
#endif
@@ -152,13 +154,13 @@ typedef uptr OFF_T;
@@ -180,13 +182,13 @@ typedef uptr OFF_T;
typedef u64 OFF64_T;
#if (SANITIZER_WORDSIZE == 64) || SANITIZER_MAC
-typedef uptr operator_new_size_type;
+typedef size_t operator_new_size_type;
#else
# if defined(__s390__) && !defined(__s390x__)
# if SANITIZER_OPENBSD || defined(__s390__) && !defined(__s390x__)
// Special case: 31-bit s390 has unsigned long as size_t.
typedef unsigned long operator_new_size_type;
# else
@ -397,36 +385,38 @@ index edd6a21..a927498 100644
#endif
diff --git a/sanitizer_common/sanitizer_platform.h b/sanitizer_common/sanitizer_platform.h
index 1eb4d0c..95701c2 100644
index c68bfa2..b13d28a 100644
--- a/sanitizer_common/sanitizer_platform.h
+++ b/sanitizer_common/sanitizer_platform.h
@@ -11,10 +11,12 @@
@@ -12,12 +12,14 @@
#ifndef SANITIZER_PLATFORM_H
#define SANITIZER_PLATFORM_H
+#if 0
#if !defined(__linux__) && !defined(__FreeBSD__) && !defined(__NetBSD__) && \
!defined(__APPLE__) && !defined(_WIN32) && !defined(__Fuchsia__)
!defined(__OpenBSD__) && !defined(__APPLE__) && !defined(_WIN32) && \
!defined(__Fuchsia__) && !defined(__rtems__) && \
!(defined(__sun__) && defined(__svr4__))
# error "This operating system is not supported"
#endif
+#endif
#if defined(__linux__)
# define SANITIZER_LINUX 1
@@ -90,7 +92,7 @@
#endif
@@ -112,7 +114,7 @@
#define SANITIZER_POSIX \
- (SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC || SANITIZER_NETBSD)
+ (SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC || SANITIZER_NETBSD || 1)
(SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC || \
- SANITIZER_NETBSD || SANITIZER_OPENBSD || SANITIZER_SOLARIS)
+ SANITIZER_NETBSD || SANITIZER_OPENBSD || SANITIZER_SOLARIS || 1)
#if __LP64__ || defined(_WIN64)
# define SANITIZER_WORDSIZE 64
diff --git a/sanitizer_common/sanitizer_posix.h b/sanitizer_common/sanitizer_posix.h
index 9626654..2afbdc0 100644
index 05fb0f6..ff76f33 100644
--- a/sanitizer_common/sanitizer_posix.h
+++ b/sanitizer_common/sanitizer_posix.h
@@ -80,9 +80,11 @@ int my_pthread_attr_getstack(void *attr, void **addr, uptr *size);
@@ -94,9 +94,11 @@ int my_pthread_attr_getstack(void *attr, void **addr, uptr *size);
// A routine named real_sigaction() must be implemented by each sanitizer in
// order for internal_sigaction() to bypass interceptors.
int internal_sigaction(int signum, const void *act, void *oldact);
@ -438,11 +428,11 @@ index 9626654..2afbdc0 100644
uptr internal_execve(const char *filename, char *const argv[],
char *const envp[]);
diff --git a/sanitizer_common/sanitizer_printf.cc b/sanitizer_common/sanitizer_printf.cc
index 1456c76..d6d46b3 100644
--- a/sanitizer_common/sanitizer_printf.cc
+++ b/sanitizer_common/sanitizer_printf.cc
@@ -16,7 +16,9 @@
diff --git a/sanitizer_common/sanitizer_printf.cpp b/sanitizer_common/sanitizer_printf.cpp
index a032787..fdf21c9 100644
--- a/sanitizer_common/sanitizer_printf.cpp
+++ b/sanitizer_common/sanitizer_printf.cpp
@@ -17,7 +17,9 @@
#include "sanitizer_flags.h"
#include "sanitizer_libc.h"
@ -453,11 +443,11 @@ index 1456c76..d6d46b3 100644
#if SANITIZER_WINDOWS && defined(_MSC_VER) && _MSC_VER < 1800 && \
diff --git a/sanitizer_common/sanitizer_stacktrace.h b/sanitizer_common/sanitizer_stacktrace.h
index 31e99f6..47c7204 100644
index f1f29e9..fe310f7 100644
--- a/sanitizer_common/sanitizer_stacktrace.h
+++ b/sanitizer_common/sanitizer_stacktrace.h
@@ -31,7 +31,7 @@ static const u32 kStackTraceMax = 256;
#if SANITIZER_MAC
@@ -36,7 +36,7 @@ static const u32 kStackTraceMax = 256;
#if SANITIZER_MAC || SANITIZER_OPENBSD || SANITIZER_RTEMS
# define SANITIZER_CAN_SLOW_UNWIND 0
#else
-# define SANITIZER_CAN_SLOW_UNWIND 1
@ -465,11 +455,11 @@ index 31e99f6..47c7204 100644
#endif
struct StackTrace {
diff --git a/sanitizer_common/sanitizer_symbolizer_libcdep.cc b/sanitizer_common/sanitizer_symbolizer_libcdep.cc
index df93441..fd65874 100644
--- a/sanitizer_common/sanitizer_symbolizer_libcdep.cc
+++ b/sanitizer_common/sanitizer_symbolizer_libcdep.cc
@@ -9,6 +9,8 @@
diff --git a/sanitizer_common/sanitizer_symbolizer_libcdep.cpp b/sanitizer_common/sanitizer_symbolizer_libcdep.cpp
index 3b19a68..3f0f40e 100644
--- a/sanitizer_common/sanitizer_symbolizer_libcdep.cpp
+++ b/sanitizer_common/sanitizer_symbolizer_libcdep.cpp
@@ -10,6 +10,8 @@
// run-time libraries.
//===----------------------------------------------------------------------===//
@ -478,7 +468,7 @@ index df93441..fd65874 100644
#include "sanitizer_allocator_internal.h"
#include "sanitizer_internal_defs.h"
#include "sanitizer_symbolizer_internal.h"
@@ -167,7 +169,7 @@ void Symbolizer::RefreshModules() {
@@ -189,7 +191,7 @@ void Symbolizer::RefreshModules() {
RAW_CHECK(modules_.size() > 0);
modules_fresh_ = true;
}
@ -487,7 +477,7 @@ index df93441..fd65874 100644
static const LoadedModule *SearchForModule(const ListOfModules &modules,
uptr address) {
for (uptr i = 0; i < modules.size(); i++) {
@@ -177,8 +179,11 @@ static const LoadedModule *SearchForModule(const ListOfModules &modules,
@@ -199,8 +201,11 @@ static const LoadedModule *SearchForModule(const ListOfModules &modules,
}
return nullptr;
}
@ -500,7 +490,7 @@ index df93441..fd65874 100644
bool modules_were_reloaded = false;
if (!modules_fresh_) {
RefreshModules();
@@ -202,6 +207,7 @@ const LoadedModule *Symbolizer::FindModuleForAddress(uptr address) {
@@ -224,6 +229,7 @@ const LoadedModule *Symbolizer::FindModuleForAddress(uptr address) {
module = SearchForModule(fallback_modules_, address);
}
return module;
@ -508,11 +498,11 @@ index df93441..fd65874 100644
}
// For now we assume the following protocol:
diff --git a/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc b/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc
index afd6bbe..9a34d2f 100644
--- a/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc
+++ b/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc
@@ -10,6 +10,9 @@
diff --git a/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cpp b/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cpp
index c123ecb..be6873c 100644
--- a/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cpp
+++ b/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cpp
@@ -11,6 +11,9 @@
// POSIX-specific implementation of symbolizer parts.
//===----------------------------------------------------------------------===//
@ -522,7 +512,7 @@ index afd6bbe..9a34d2f 100644
#include "sanitizer_platform.h"
#if SANITIZER_POSIX
#include "sanitizer_allocator_internal.h"
@@ -25,13 +28,14 @@
@@ -26,12 +29,14 @@
#include "sanitizer_symbolizer_libbacktrace.h"
#include "sanitizer_symbolizer_mac.h"
@ -533,12 +523,11 @@ index afd6bbe..9a34d2f 100644
#include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>
-
+#endif
#if SANITIZER_MAC
#include <util.h> // for forkpty()
#endif // SANITIZER_MAC
@@ -61,7 +65,7 @@ const char *DemangleCXXABI(const char *name) {
// C++ demangling function, as required by Itanium C++ ABI. This is weak,
// because we do not require a C++ ABI library to be linked to a program
@@ -58,7 +63,7 @@ const char *DemangleCXXABI(const char *name) {
return name;
}
@ -547,7 +536,7 @@ index afd6bbe..9a34d2f 100644
// As of now, there are no headers for the Swift runtime. Once they are
// present, we will weakly link since we do not require Swift runtime to be
// linked.
@@ -92,14 +96,16 @@ const char *DemangleSwift(const char *name) {
@@ -90,14 +95,16 @@ const char *DemangleSwift(const char *name) {
return nullptr;
}
@ -566,7 +555,7 @@ index afd6bbe..9a34d2f 100644
static bool CreateTwoHighNumberedPipes(int *infd_, int *outfd_) {
int *infd = NULL;
int *outfd = NULL;
@@ -139,8 +145,12 @@ static bool CreateTwoHighNumberedPipes(int *infd_, int *outfd_) {
@@ -137,8 +144,12 @@ static bool CreateTwoHighNumberedPipes(int *infd_, int *outfd_) {
outfd_[1] = outfd[1];
return true;
}
@ -580,7 +569,7 @@ index afd6bbe..9a34d2f 100644
if (!FileExists(path_)) {
if (!reported_invalid_path_) {
Report("WARNING: invalid path to external symbolizer!\n");
@@ -246,6 +256,7 @@ bool SymbolizerProcess::StartSymbolizerSubprocess() {
@@ -196,6 +207,7 @@ bool SymbolizerProcess::StartSymbolizerSubprocess() {
}
return true;
@ -588,16 +577,15 @@ index afd6bbe..9a34d2f 100644
}
class Addr2LineProcess : public SymbolizerProcess {
@@ -443,7 +454,7 @@ const char *Symbolizer::PlatformDemangle(const char *name) {
@@ -393,6 +405,7 @@ const char *Symbolizer::PlatformDemangle(const char *name) {
return DemangleSwiftAndCXX(name);
}
void Symbolizer::PlatformPrepareForSandboxing() {}
-
+#if 0
static SymbolizerTool *ChooseExternalSymbolizer(LowLevelAllocator *allocator) {
const char *path = common_flags()->external_symbolizer_path;
const char *binary_name = path ? StripModuleName(path) : "";
@@ -491,7 +502,7 @@ static SymbolizerTool *ChooseExternalSymbolizer(LowLevelAllocator *allocator) {
@@ -440,7 +453,7 @@ static SymbolizerTool *ChooseExternalSymbolizer(LowLevelAllocator *allocator) {
}
return nullptr;
}
@ -606,7 +594,7 @@ index afd6bbe..9a34d2f 100644
static void ChooseSymbolizerTools(IntrusiveList<SymbolizerTool> *list,
LowLevelAllocator *allocator) {
if (!common_flags()->symbolize) {
@@ -510,11 +521,11 @@ static void ChooseSymbolizerTools(IntrusiveList<SymbolizerTool> *list,
@@ -459,11 +472,11 @@ static void ChooseSymbolizerTools(IntrusiveList<SymbolizerTool> *list,
list->push_back(tool);
return;
}
@ -620,7 +608,7 @@ index afd6bbe..9a34d2f 100644
#if SANITIZER_MAC
VReport(2, "Using dladdr symbolizer.\n");
list->push_back(new(*allocator) DlAddrSymbolizer());
@@ -530,7 +541,9 @@ Symbolizer *Symbolizer::PlatformInit() {
@@ -479,7 +492,9 @@ Symbolizer *Symbolizer::PlatformInit() {
void Symbolizer::LateInitialize() {
Symbolizer::GetOrInit();
@ -630,11 +618,33 @@ index afd6bbe..9a34d2f 100644
}
} // namespace __sanitizer
diff --git a/ubsan/ubsan_diag.cc b/ubsan/ubsan_diag.cc
index 978d966..7d38a9b 100644
--- a/ubsan/ubsan_diag.cc
+++ b/ubsan/ubsan_diag.cc
@@ -20,7 +20,9 @@
diff --git a/sanitizer_common/sanitizer_symbolizer_report.cpp b/sanitizer_common/sanitizer_symbolizer_report.cpp
index c26724c..fb91e96 100644
--- a/sanitizer_common/sanitizer_symbolizer_report.cpp
+++ b/sanitizer_common/sanitizer_symbolizer_report.cpp
@@ -20,7 +20,7 @@
#include "sanitizer_stacktrace_printer.h"
#include "sanitizer_symbolizer.h"
-#if SANITIZER_POSIX
+#if SANITIZER_POSIX && 0
# include "sanitizer_posix.h"
# include <sys/mman.h>
#endif
@@ -88,7 +88,7 @@ void ReportErrorSummary(const char *error_type, const StackTrace *stack,
}
void ReportMmapWriteExec(int prot) {
-#if SANITIZER_POSIX && (!SANITIZER_GO && !SANITIZER_ANDROID)
+#if SANITIZER_POSIX && (!SANITIZER_GO && !SANITIZER_ANDROID) && 0
if ((prot & (PROT_WRITE | PROT_EXEC)) != (PROT_WRITE | PROT_EXEC))
return;
diff --git a/ubsan/ubsan_diag.cpp b/ubsan/ubsan_diag.cpp
index 1b2828d..8605700 100644
--- a/ubsan/ubsan_diag.cpp
+++ b/ubsan/ubsan_diag.cpp
@@ -22,7 +22,9 @@
#include "sanitizer_common/sanitizer_stacktrace_printer.h"
#include "sanitizer_common/sanitizer_suppressions.h"
#include "sanitizer_common/sanitizer_symbolizer.h"
@ -644,7 +654,7 @@ index 978d966..7d38a9b 100644
using namespace __ubsan;
@@ -209,7 +211,9 @@ static void RenderText(InternalScopedString *Buffer, const char *Message,
@@ -218,7 +220,9 @@ static void RenderText(InternalScopedString *Buffer, const char *Message,
#if SANITIZER_WINDOWS
sprintf_s(FloatBuffer, sizeof(FloatBuffer), "%Lg", (long double)A.Float);
#else
@ -654,3 +664,29 @@ index 978d966..7d38a9b 100644
#endif
Buffer->append("%s", FloatBuffer);
break;
diff --git a/ubsan/ubsan_flags.cpp b/ubsan/ubsan_flags.cpp
index 80de2a6..913fd4b 100644
--- a/ubsan/ubsan_flags.cpp
+++ b/ubsan/ubsan_flags.cpp
@@ -17,7 +17,9 @@
#include "sanitizer_common/sanitizer_flags.h"
#include "sanitizer_common/sanitizer_flag_parser.h"
+#if 0
#include <stdlib.h>
+#endif
namespace __ubsan {
@@ -30,7 +32,11 @@ static const char *GetFlag(const char *flag) {
if (SANITIZER_CAN_USE_PREINIT_ARRAY) {
return GetEnv(flag);
} else {
+#if 0
return getenv(flag);
+#else
+ return "";
+#endif
}
}