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-rw-r--r--compiler-rt/include/profile/InstrProfData.inc58
-rw-r--r--compiler-rt/lib/profile/InstrProfiling.h35
-rw-r--r--compiler-rt/lib/profile/InstrProfilingBuffer.c58
-rw-r--r--compiler-rt/lib/profile/InstrProfilingInternal.h4
-rw-r--r--compiler-rt/lib/profile/InstrProfilingMerge.c25
-rw-r--r--compiler-rt/lib/profile/InstrProfilingPlatformLinux.c20
-rw-r--r--compiler-rt/lib/profile/InstrProfilingWriter.c37
7 files changed, 202 insertions, 35 deletions
diff --git a/compiler-rt/include/profile/InstrProfData.inc b/compiler-rt/include/profile/InstrProfData.inc
index 25df899..f0bc2d9 100644
--- a/compiler-rt/include/profile/InstrProfData.inc
+++ b/compiler-rt/include/profile/InstrProfData.inc
@@ -94,6 +94,26 @@ INSTR_PROF_DATA(const uint32_t, llvm::Type::getInt32Ty(Ctx), NumBitmapBytes, \
#undef INSTR_PROF_DATA
/* INSTR_PROF_DATA end. */
+/* For a virtual table object, record the name hash to associate profiled
+ * addresses with global variables, and record {starting address, size in bytes}
+ * to map the profiled virtual table (which usually have an offset from the
+ * starting address) back to a virtual table object. */
+#ifndef INSTR_PROF_VTABLE_DATA
+#define INSTR_PROF_VTABLE_DATA(Type, LLVMType, Name, Initializer)
+#else
+#define INSTR_PROF_VTABLE_DATA_DEFINED
+#endif
+INSTR_PROF_VTABLE_DATA(
+ const uint64_t, llvm::Type::getInt64Ty(Ctx), VTableNameHash,
+ ConstantInt::get(llvm::Type::getInt64Ty(Ctx),
+ IndexedInstrProf::ComputeHash(PGOVTableName)))
+INSTR_PROF_VTABLE_DATA(const IntPtrT, llvm::Type::getInt8PtrTy(Ctx),
+ VTablePointer, VTableAddr)
+INSTR_PROF_VTABLE_DATA(const uint32_t, llvm::Type::getInt32Ty(Ctx), VTableSize,
+ ConstantInt::get(llvm::Type::getInt32Ty(Ctx),
+ VTableSizeVal))
+#undef INSTR_PROF_VTABLE_DATA
+/* INSTR_PROF_VTABLE_DATA end. */
/* This is an internal data structure used by value profiler. It
* is defined here to allow serialization code sharing by LLVM
@@ -145,6 +165,8 @@ INSTR_PROF_RAW_HEADER(uint64_t, CountersDelta,
INSTR_PROF_RAW_HEADER(uint64_t, BitmapDelta,
(uintptr_t)BitmapBegin - (uintptr_t)DataBegin)
INSTR_PROF_RAW_HEADER(uint64_t, NamesDelta, (uintptr_t)NamesBegin)
+INSTR_PROF_RAW_HEADER(uint64_t, VNamesSize, VNamesSize)
+INSTR_PROF_RAW_HEADER(uint64_t, NumVTables, NumVTables)
INSTR_PROF_RAW_HEADER(uint64_t, ValueKindLast, IPVK_Last)
#undef INSTR_PROF_RAW_HEADER
/* INSTR_PROF_RAW_HEADER end */
@@ -186,13 +208,28 @@ VALUE_PROF_FUNC_PARAM(uint32_t, CounterIndex, Type::getInt32Ty(Ctx))
VALUE_PROF_KIND(IPVK_IndirectCallTarget, 0, "indirect call target")
/* For memory intrinsic functions size profiling. */
VALUE_PROF_KIND(IPVK_MemOPSize, 1, "memory intrinsic functions size")
+/* For virtual table address profiling, the addresses of the virtual table
+ * (i.e., the address contained in objects pointing to a virtual table) are
+ * profiled. Note this may not be the address of the per C++ class virtual table
+ * object (i.e., there is an offset).
+ *
+ * The profiled addresses are stored in raw profile, together with the following
+ * two types of information.
+ * 1. The (beginning and ending) addresses of per C++ class virtual table objects.
+ * 2. The (compressed) virtual table object names.
+ * RawInstrProfReader converts profiled virtual table addresses to virtual table
+ * objects' MD5 hash.
+ */
+VALUE_PROF_KIND(IPVK_VTableTarget, 2, "The address of the compatible vtable (i.e., "
+ "there is an offset from this address to per C++ "
+ "class virtual table global variable.)")
/* These two kinds must be the last to be
* declared. This is to make sure the string
* array created with the template can be
* indexed with the kind value.
*/
VALUE_PROF_KIND(IPVK_First, IPVK_IndirectCallTarget, "first")
-VALUE_PROF_KIND(IPVK_Last, IPVK_MemOPSize, "last")
+VALUE_PROF_KIND(IPVK_Last, IPVK_VTableTarget, "last")
#undef VALUE_PROF_KIND
/* VALUE_PROF_KIND end */
@@ -267,9 +304,9 @@ COVMAP_HEADER(uint32_t, Int32Ty, Version, \
#undef COVMAP_HEADER
/* COVMAP_HEADER end. */
-
#ifdef INSTR_PROF_SECT_ENTRY
#define INSTR_PROF_DATA_DEFINED
+
INSTR_PROF_SECT_ENTRY(IPSK_data, \
INSTR_PROF_QUOTE(INSTR_PROF_DATA_COMMON), \
INSTR_PROF_DATA_COFF, "__DATA,")
@@ -282,12 +319,18 @@ INSTR_PROF_SECT_ENTRY(IPSK_bitmap, \
INSTR_PROF_SECT_ENTRY(IPSK_name, \
INSTR_PROF_QUOTE(INSTR_PROF_NAME_COMMON), \
INSTR_PROF_NAME_COFF, "__DATA,")
+INSTR_PROF_SECT_ENTRY(IPSK_vname, \
+ INSTR_PROF_QUOTE(INSTR_PROF_VNAME_COMMON), \
+ INSTR_PROF_VNAME_COFF, "__DATA,")
INSTR_PROF_SECT_ENTRY(IPSK_vals, \
INSTR_PROF_QUOTE(INSTR_PROF_VALS_COMMON), \
INSTR_PROF_VALS_COFF, "__DATA,")
INSTR_PROF_SECT_ENTRY(IPSK_vnodes, \
INSTR_PROF_QUOTE(INSTR_PROF_VNODES_COMMON), \
INSTR_PROF_VNODES_COFF, "__DATA,")
+INSTR_PROF_SECT_ENTRY(IPSK_vtab, \
+ INSTR_PROF_QUOTE(INSTR_PROF_VTAB_COMMON), \
+ INSTR_PROF_VTAB_COFF, "__DATA,")
INSTR_PROF_SECT_ENTRY(IPSK_covmap, \
INSTR_PROF_QUOTE(INSTR_PROF_COVMAP_COMMON), \
INSTR_PROF_COVMAP_COFF, "__LLVM_COV,")
@@ -307,7 +350,6 @@ INSTR_PROF_SECT_ENTRY(IPSK_covname, \
#undef INSTR_PROF_SECT_ENTRY
#endif
-
#ifdef INSTR_PROF_VALUE_PROF_DATA
#define INSTR_PROF_DATA_DEFINED
@@ -479,7 +521,6 @@ getValueProfRecordHeaderSize(uint32_t NumValueSites);
#undef INSTR_PROF_VALUE_PROF_DATA
#endif /* INSTR_PROF_VALUE_PROF_DATA */
-
#ifdef INSTR_PROF_COMMON_API_IMPL
#define INSTR_PROF_DATA_DEFINED
#ifdef __cplusplus
@@ -663,9 +704,9 @@ serializeValueProfDataFrom(ValueProfRecordClosure *Closure,
(uint64_t)'f' << 16 | (uint64_t)'R' << 8 | (uint64_t)129
/* Raw profile format version (start from 1). */
-#define INSTR_PROF_RAW_VERSION 9
+#define INSTR_PROF_RAW_VERSION 10
/* Indexed profile format version (start from 1). */
-#define INSTR_PROF_INDEX_VERSION 11
+#define INSTR_PROF_INDEX_VERSION 12
/* Coverage mapping format version (start from 0). */
#define INSTR_PROF_COVMAP_VERSION 6
@@ -703,10 +744,12 @@ serializeValueProfDataFrom(ValueProfRecordClosure *Closure,
than WIN32 */
#define INSTR_PROF_DATA_COMMON __llvm_prf_data
#define INSTR_PROF_NAME_COMMON __llvm_prf_names
+#define INSTR_PROF_VNAME_COMMON __llvm_prf_vtabnames
#define INSTR_PROF_CNTS_COMMON __llvm_prf_cnts
#define INSTR_PROF_BITS_COMMON __llvm_prf_bits
#define INSTR_PROF_VALS_COMMON __llvm_prf_vals
#define INSTR_PROF_VNODES_COMMON __llvm_prf_vnds
+#define INSTR_PROF_VTAB_COMMON __llvm_prf_vtab
#define INSTR_PROF_COVMAP_COMMON __llvm_covmap
#define INSTR_PROF_COVFUN_COMMON __llvm_covfun
#define INSTR_PROF_COVDATA_COMMON __llvm_covdata
@@ -717,10 +760,12 @@ serializeValueProfDataFrom(ValueProfRecordClosure *Closure,
*/
#define INSTR_PROF_DATA_COFF ".lprfd$M"
#define INSTR_PROF_NAME_COFF ".lprfn$M"
+#define INSTR_PROF_VNAME_COFF ".lprfn$M"
#define INSTR_PROF_CNTS_COFF ".lprfc$M"
#define INSTR_PROF_BITS_COFF ".lprfb$M"
#define INSTR_PROF_VALS_COFF ".lprfv$M"
#define INSTR_PROF_VNODES_COFF ".lprfnd$M"
+#define INSTR_PROF_VTAB_COFF ".lprfvt$M"
#define INSTR_PROF_COVMAP_COFF ".lcovmap$M"
#define INSTR_PROF_COVFUN_COFF ".lcovfun$M"
/* Since cov data and cov names sections are not allocated, we don't need to
@@ -938,3 +983,4 @@ InstrProfIsSingleValRange(uint64_t Value) {
}
#endif /* INSTR_PROF_VALUE_PROF_MEMOP_API */
+
diff --git a/compiler-rt/lib/profile/InstrProfiling.h b/compiler-rt/lib/profile/InstrProfiling.h
index 0123908..9e6306a 100644
--- a/compiler-rt/lib/profile/InstrProfiling.h
+++ b/compiler-rt/lib/profile/InstrProfiling.h
@@ -49,6 +49,12 @@ typedef struct ValueProfNode {
#include "profile/InstrProfData.inc"
} ValueProfNode;
+typedef void *IntPtrT;
+typedef struct VTableProfData {
+#define INSTR_PROF_VTABLE_DATA(Type, LLVMType, Name, Initializer) Type Name;
+#include "profile/InstrProfData.inc"
+} VTableProfData;
+
/*!
* \brief Return 1 if profile counters are continuously synced to the raw
* profile via an mmap(). This is in contrast to the default mode, in which
@@ -103,12 +109,16 @@ const __llvm_profile_data *__llvm_profile_begin_data(void);
const __llvm_profile_data *__llvm_profile_end_data(void);
const char *__llvm_profile_begin_names(void);
const char *__llvm_profile_end_names(void);
+const char *__llvm_profile_begin_vtabnames(void);
+const char *__llvm_profile_end_vtabnames(void);
char *__llvm_profile_begin_counters(void);
char *__llvm_profile_end_counters(void);
char *__llvm_profile_begin_bitmap(void);
char *__llvm_profile_end_bitmap(void);
ValueProfNode *__llvm_profile_begin_vnodes();
ValueProfNode *__llvm_profile_end_vnodes();
+VTableProfData *__llvm_profile_begin_vtables();
+VTableProfData *__llvm_profile_end_vtables();
uint32_t *__llvm_profile_begin_orderfile();
/*!
@@ -252,20 +262,31 @@ uint64_t __llvm_profile_get_num_bitmap_bytes(const char *Begin,
/*! \brief Get the size of the profile name section in bytes. */
uint64_t __llvm_profile_get_name_size(const char *Begin, const char *End);
-/* ! \brief Given the sizes of the data and counter information, return the
- * number of padding bytes before and after the counters, and after the names,
- * in the raw profile.
+/*! \brief Get the number of virtual table profile data entries */
+uint64_t __llvm_profile_get_num_vtable(const VTableProfData *Begin,
+ const VTableProfData *End);
+
+/*! \brief Get the size of virtual table profile data in bytes. */
+uint64_t __llvm_profile_get_vtable_section_size(const VTableProfData *Begin,
+ const VTableProfData *End);
+
+/* ! \brief Given the sizes of the data and counter information, computes the
+ * number of padding bytes before and after the counter section, as well as the
+ * number of padding bytes after other setions in the raw profile.
+ * Returns -1 upon errors and 0 upon success. Output parameters should be used
+ * iff return value is 0.
*
* Note: When mmap() mode is disabled, no padding bytes before/after counters
* are needed. However, in mmap() mode, the counter section in the raw profile
* must be page-aligned: this API computes the number of padding bytes
* needed to achieve that.
*/
-void __llvm_profile_get_padding_sizes_for_counters(
+int __llvm_profile_get_padding_sizes_for_counters(
uint64_t DataSize, uint64_t CountersSize, uint64_t NumBitmapBytes,
- uint64_t NamesSize, uint64_t *PaddingBytesBeforeCounters,
- uint64_t *PaddingBytesAfterCounters, uint64_t *PaddingBytesAfterBitmap,
- uint64_t *PaddingBytesAfterNames);
+ uint64_t NamesSize, uint64_t VTableSize, uint64_t VNameSize,
+ uint64_t *PaddingBytesBeforeCounters, uint64_t *PaddingBytesAfterCounters,
+ uint64_t *PaddingBytesAfterBitmap, uint64_t *PaddingBytesAfterNames,
+ uint64_t *PaddingBytesAfterVTable, uint64_t *PaddingBytesAfterVNames);
/*!
* \brief Set the flag that profile data has been dumped to the file.
diff --git a/compiler-rt/lib/profile/InstrProfilingBuffer.c b/compiler-rt/lib/profile/InstrProfilingBuffer.c
index af52804..f31dc7d 100644
--- a/compiler-rt/lib/profile/InstrProfilingBuffer.c
+++ b/compiler-rt/lib/profile/InstrProfilingBuffer.c
@@ -70,6 +70,18 @@ uint64_t __llvm_profile_get_data_size(const __llvm_profile_data *Begin,
const __llvm_profile_data *End) {
return __llvm_profile_get_num_data(Begin, End) * sizeof(__llvm_profile_data);
}
+COMPILER_RT_VISIBILITY
+uint64_t __llvm_profile_get_num_vtable(const VTableProfData *Begin,
+ const VTableProfData *End) {
+ intptr_t EndI = (intptr_t)End, BeginI = (intptr_t)Begin;
+ return (EndI + sizeof(VTableProfData) - 1 - BeginI) / sizeof(VTableProfData);
+}
+
+COMPILER_RT_VISIBILITY
+uint64_t __llvm_profile_get_vtable_section_size(const VTableProfData *Begin,
+ const VTableProfData *End) {
+ return __llvm_profile_get_num_vtable(Begin, End) * sizeof(VTableProfData);
+}
COMPILER_RT_VISIBILITY size_t __llvm_profile_counter_entry_size(void) {
if (__llvm_profile_get_version() & VARIANT_MASK_BYTE_COVERAGE)
@@ -119,11 +131,13 @@ static int needsCounterPadding(void) {
}
COMPILER_RT_VISIBILITY
-void __llvm_profile_get_padding_sizes_for_counters(
+int __llvm_profile_get_padding_sizes_for_counters(
uint64_t DataSize, uint64_t CountersSize, uint64_t NumBitmapBytes,
- uint64_t NamesSize, uint64_t *PaddingBytesBeforeCounters,
- uint64_t *PaddingBytesAfterCounters, uint64_t *PaddingBytesAfterBitmapBytes,
- uint64_t *PaddingBytesAfterNames) {
+ uint64_t NamesSize, uint64_t VTableSize, uint64_t VNameSize,
+ uint64_t *PaddingBytesBeforeCounters, uint64_t *PaddingBytesAfterCounters,
+ uint64_t *PaddingBytesAfterBitmapBytes, uint64_t *PaddingBytesAfterNames,
+ uint64_t *PaddingBytesAfterVTable, uint64_t *PaddingBytesAfterVName) {
+ // Counter padding is needed only if continuous mode is enabled.
if (!needsCounterPadding()) {
*PaddingBytesBeforeCounters = 0;
*PaddingBytesAfterCounters =
@@ -131,9 +145,19 @@ void __llvm_profile_get_padding_sizes_for_counters(
*PaddingBytesAfterBitmapBytes =
__llvm_profile_get_num_padding_bytes(NumBitmapBytes);
*PaddingBytesAfterNames = __llvm_profile_get_num_padding_bytes(NamesSize);
- return;
+ if (PaddingBytesAfterVTable != NULL)
+ *PaddingBytesAfterVTable =
+ __llvm_profile_get_num_padding_bytes(VTableSize);
+ if (PaddingBytesAfterVName != NULL)
+ *PaddingBytesAfterVName = __llvm_profile_get_num_padding_bytes(VNameSize);
+ return 0;
}
+ // Value profiling not supported in continuous mode at profile-write time.
+ // Return -1 to alert the incompatibility.
+ if (VTableSize != 0 || VNameSize != 0)
+ return -1;
+
// In continuous mode, the file offsets for headers and for the start of
// counter sections need to be page-aligned.
*PaddingBytesBeforeCounters =
@@ -142,6 +166,13 @@ void __llvm_profile_get_padding_sizes_for_counters(
*PaddingBytesAfterBitmapBytes =
calculateBytesNeededToPageAlign(NumBitmapBytes);
*PaddingBytesAfterNames = calculateBytesNeededToPageAlign(NamesSize);
+ // Set these two variables to zero to avoid uninitialized variables
+ // even if VTableSize and VNameSize are known to be zero.
+ if (PaddingBytesAfterVTable != NULL)
+ *PaddingBytesAfterVTable = 0;
+ if (PaddingBytesAfterVName != NULL)
+ *PaddingBytesAfterVName = 0;
+ return 0;
}
COMPILER_RT_VISIBILITY
@@ -162,9 +193,11 @@ uint64_t __llvm_profile_get_size_for_buffer_internal(
uint64_t PaddingBytesBeforeCounters, PaddingBytesAfterCounters,
PaddingBytesAfterNames, PaddingBytesAfterBitmapBytes;
__llvm_profile_get_padding_sizes_for_counters(
- DataSize, CountersSize, NumBitmapBytes, NamesSize,
- &PaddingBytesBeforeCounters, &PaddingBytesAfterCounters,
- &PaddingBytesAfterBitmapBytes, &PaddingBytesAfterNames);
+ DataSize, CountersSize, NumBitmapBytes, NamesSize, 0 /* VTableSize */,
+ 0 /* VNameSize */, &PaddingBytesBeforeCounters,
+ &PaddingBytesAfterCounters, &PaddingBytesAfterBitmapBytes,
+ &PaddingBytesAfterNames, NULL /* PaddingBytesAfterVTable */,
+ NULL /* PaddingbytesAfterVNames */);
return sizeof(__llvm_profile_header) + __llvm_write_binary_ids(NULL) +
DataSize + PaddingBytesBeforeCounters + CountersSize +
@@ -191,7 +224,10 @@ COMPILER_RT_VISIBILITY int __llvm_profile_write_buffer_internal(
const char *NamesBegin, const char *NamesEnd) {
ProfDataWriter BufferWriter;
initBufferWriter(&BufferWriter, Buffer);
- return lprofWriteDataImpl(&BufferWriter, DataBegin, DataEnd, CountersBegin,
- CountersEnd, BitmapBegin, BitmapEnd, 0, NamesBegin,
- NamesEnd, 0);
+ // Set virtual table arguments to NULL since they are not supported yet.
+ return lprofWriteDataImpl(
+ &BufferWriter, DataBegin, DataEnd, CountersBegin, CountersEnd,
+ BitmapBegin, BitmapEnd, 0 /* VPDataReader */, NamesBegin, NamesEnd,
+ NULL /* VTableBegin */, NULL /* VTableEnd */, NULL /* VNamesBegin */,
+ NULL /* VNamesEnd */, 0 /* SkipNameDataWrite */);
}
diff --git a/compiler-rt/lib/profile/InstrProfilingInternal.h b/compiler-rt/lib/profile/InstrProfilingInternal.h
index 03ed67f..38159b6 100644
--- a/compiler-rt/lib/profile/InstrProfilingInternal.h
+++ b/compiler-rt/lib/profile/InstrProfilingInternal.h
@@ -156,7 +156,9 @@ int lprofWriteDataImpl(ProfDataWriter *Writer,
const char *CountersBegin, const char *CountersEnd,
const char *BitmapBegin, const char *BitmapEnd,
VPDataReaderType *VPDataReader, const char *NamesBegin,
- const char *NamesEnd, int SkipNameDataWrite);
+ const char *NamesEnd, const VTableProfData *VTableBegin,
+ const VTableProfData *VTableEnd, const char *VNamesBegin,
+ const char *VNamesEnd, int SkipNameDataWrite);
/* Merge value profile data pointed to by SrcValueProfData into
* in-memory profile counters pointed by to DstData. */
diff --git a/compiler-rt/lib/profile/InstrProfilingMerge.c b/compiler-rt/lib/profile/InstrProfilingMerge.c
index b5850e9..ad7a50dc 100644
--- a/compiler-rt/lib/profile/InstrProfilingMerge.c
+++ b/compiler-rt/lib/profile/InstrProfilingMerge.c
@@ -107,6 +107,27 @@ static uintptr_t signextIfWin64(void *V) {
#endif
}
+static uint64_t
+getDistanceFromCounterToValueProf(const __llvm_profile_header *const Header) {
+ // Skip names section, vtable profile data section and vtable names section
+ // for runtime profile merge. To merge runtime addresses from multiple
+ // profiles collected from the same instrumented binary, the binary should be
+ // loaded at fixed base address (e.g., build with -no-pie, or run with ASLR
+ // disabled).
+ // In this set-up these three sections remain unchanged.
+ const uint64_t VTableSectionSize =
+ Header->NumVTables * sizeof(VTableProfData);
+ const uint64_t PaddingBytesAfterVTableSection =
+ __llvm_profile_get_num_padding_bytes(VTableSectionSize);
+ const uint64_t VNamesSize = Header->VNamesSize;
+ const uint64_t PaddingBytesAfterVNamesSize =
+ __llvm_profile_get_num_padding_bytes(VNamesSize);
+ return Header->NamesSize +
+ __llvm_profile_get_num_padding_bytes(Header->NamesSize) +
+ VTableSectionSize + PaddingBytesAfterVTableSection + VNamesSize +
+ PaddingBytesAfterVNamesSize;
+}
+
COMPILER_RT_VISIBILITY
int __llvm_profile_merge_from_buffer(const char *ProfileData,
uint64_t ProfileSize) {
@@ -136,9 +157,9 @@ int __llvm_profile_merge_from_buffer(const char *ProfileData,
Header->NumCounters * __llvm_profile_counter_entry_size();
SrcBitmapStart = SrcCountersEnd;
SrcNameStart = SrcBitmapStart + Header->NumBitmapBytes;
+
SrcValueProfDataStart =
- SrcNameStart + Header->NamesSize +
- __llvm_profile_get_num_padding_bytes(Header->NamesSize);
+ SrcNameStart + getDistanceFromCounterToValueProf(Header);
if (SrcNameStart < SrcCountersStart || SrcNameStart < SrcBitmapStart)
return 1;
diff --git a/compiler-rt/lib/profile/InstrProfilingPlatformLinux.c b/compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
index 19266ab..d2554a2 100644
--- a/compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
+++ b/compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
@@ -24,8 +24,12 @@
#define PROF_DATA_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_DATA_COMMON)
#define PROF_NAME_START INSTR_PROF_SECT_START(INSTR_PROF_NAME_COMMON)
#define PROF_NAME_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_NAME_COMMON)
+#define PROF_VNAME_START INSTR_PROF_SECT_START(INSTR_PROF_VNAME_COMMON)
+#define PROF_VNAME_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_VNAME_COMMON)
#define PROF_CNTS_START INSTR_PROF_SECT_START(INSTR_PROF_CNTS_COMMON)
#define PROF_CNTS_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_CNTS_COMMON)
+#define PROF_VTABLE_START INSTR_PROF_SECT_START(INSTR_PROF_VTAB_COMMON)
+#define PROF_VTABLE_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_VTAB_COMMON)
#define PROF_BITS_START INSTR_PROF_SECT_START(INSTR_PROF_BITS_COMMON)
#define PROF_BITS_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_BITS_COMMON)
#define PROF_ORDERFILE_START INSTR_PROF_SECT_START(INSTR_PROF_ORDERFILE_COMMON)
@@ -41,6 +45,10 @@ extern __llvm_profile_data PROF_DATA_STOP COMPILER_RT_VISIBILITY
COMPILER_RT_WEAK;
extern char PROF_CNTS_START COMPILER_RT_VISIBILITY COMPILER_RT_WEAK;
extern char PROF_CNTS_STOP COMPILER_RT_VISIBILITY COMPILER_RT_WEAK;
+extern VTableProfData PROF_VTABLE_START COMPILER_RT_VISIBILITY COMPILER_RT_WEAK;
+extern VTableProfData PROF_VTABLE_STOP COMPILER_RT_VISIBILITY COMPILER_RT_WEAK;
+extern char PROF_VNAME_START COMPILER_RT_VISIBILITY COMPILER_RT_WEAK;
+extern char PROF_VNAME_STOP COMPILER_RT_VISIBILITY COMPILER_RT_WEAK;
extern char PROF_BITS_START COMPILER_RT_VISIBILITY COMPILER_RT_WEAK;
extern char PROF_BITS_STOP COMPILER_RT_VISIBILITY COMPILER_RT_WEAK;
extern uint32_t PROF_ORDERFILE_START COMPILER_RT_VISIBILITY COMPILER_RT_WEAK;
@@ -63,6 +71,18 @@ COMPILER_RT_VISIBILITY const char *__llvm_profile_begin_names(void) {
COMPILER_RT_VISIBILITY const char *__llvm_profile_end_names(void) {
return &PROF_NAME_STOP;
}
+COMPILER_RT_VISIBILITY const char *__llvm_profile_begin_vtabnames(void) {
+ return &PROF_VNAME_START;
+}
+COMPILER_RT_VISIBILITY const char *__llvm_profile_end_vtabnames(void) {
+ return &PROF_VNAME_STOP;
+}
+COMPILER_RT_VISIBILITY VTableProfData *__llvm_profile_begin_vtables(void) {
+ return &PROF_VTABLE_START;
+}
+COMPILER_RT_VISIBILITY VTableProfData *__llvm_profile_end_vtables(void) {
+ return &PROF_VTABLE_STOP;
+}
COMPILER_RT_VISIBILITY char *__llvm_profile_begin_counters(void) {
return &PROF_CNTS_START;
}
diff --git a/compiler-rt/lib/profile/InstrProfilingWriter.c b/compiler-rt/lib/profile/InstrProfilingWriter.c
index 4d767d1..8816a71 100644
--- a/compiler-rt/lib/profile/InstrProfilingWriter.c
+++ b/compiler-rt/lib/profile/InstrProfilingWriter.c
@@ -250,9 +250,14 @@ COMPILER_RT_VISIBILITY int lprofWriteData(ProfDataWriter *Writer,
const char *BitmapEnd = __llvm_profile_end_bitmap();
const char *NamesBegin = __llvm_profile_begin_names();
const char *NamesEnd = __llvm_profile_end_names();
+ const VTableProfData *VTableBegin = __llvm_profile_begin_vtables();
+ const VTableProfData *VTableEnd = __llvm_profile_end_vtables();
+ const char *VNamesBegin = __llvm_profile_begin_vtabnames();
+ const char *VNamesEnd = __llvm_profile_end_vtabnames();
return lprofWriteDataImpl(Writer, DataBegin, DataEnd, CountersBegin,
CountersEnd, BitmapBegin, BitmapEnd, VPDataReader,
- NamesBegin, NamesEnd, SkipNameDataWrite);
+ NamesBegin, NamesEnd, VTableBegin, VTableEnd,
+ VNamesBegin, VNamesEnd, SkipNameDataWrite);
}
COMPILER_RT_VISIBILITY int
@@ -261,7 +266,9 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin,
const char *CountersBegin, const char *CountersEnd,
const char *BitmapBegin, const char *BitmapEnd,
VPDataReaderType *VPDataReader, const char *NamesBegin,
- const char *NamesEnd, int SkipNameDataWrite) {
+ const char *NamesEnd, const VTableProfData *VTableBegin,
+ const VTableProfData *VTableEnd, const char *VNamesBegin,
+ const char *VNamesEnd, int SkipNameDataWrite) {
/* Calculate size of sections. */
const uint64_t DataSectionSize =
__llvm_profile_get_data_size(DataBegin, DataEnd);
@@ -273,6 +280,12 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin,
const uint64_t NumBitmapBytes =
__llvm_profile_get_num_bitmap_bytes(BitmapBegin, BitmapEnd);
const uint64_t NamesSize = __llvm_profile_get_name_size(NamesBegin, NamesEnd);
+ const uint64_t NumVTables =
+ __llvm_profile_get_num_vtable(VTableBegin, VTableEnd);
+ const uint64_t VTableSectionSize =
+ __llvm_profile_get_vtable_section_size(VTableBegin, VTableEnd);
+ const uint64_t VNamesSize =
+ __llvm_profile_get_name_size(VNamesBegin, VNamesEnd);
/* Create the header. */
__llvm_profile_header Header;
@@ -280,11 +293,15 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin,
/* Determine how much padding is needed before/after the counters and after
* the names. */
uint64_t PaddingBytesBeforeCounters, PaddingBytesAfterCounters,
- PaddingBytesAfterNames, PaddingBytesAfterBitmapBytes;
- __llvm_profile_get_padding_sizes_for_counters(
- DataSectionSize, CountersSectionSize, NumBitmapBytes, NamesSize,
- &PaddingBytesBeforeCounters, &PaddingBytesAfterCounters,
- &PaddingBytesAfterBitmapBytes, &PaddingBytesAfterNames);
+ PaddingBytesAfterBitmapBytes, PaddingBytesAfterNames,
+ PaddingBytesAfterVTable, PaddingBytesAfterVNames;
+ if (__llvm_profile_get_padding_sizes_for_counters(
+ DataSectionSize, CountersSectionSize, NumBitmapBytes, NamesSize,
+ VTableSectionSize, VNamesSize, &PaddingBytesBeforeCounters,
+ &PaddingBytesAfterCounters, &PaddingBytesAfterBitmapBytes,
+ &PaddingBytesAfterNames, &PaddingBytesAfterVTable,
+ &PaddingBytesAfterVNames) == -1)
+ return -1;
{
/* Initialize header structure. */
@@ -323,7 +340,11 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin,
{BitmapBegin, sizeof(uint8_t), NumBitmapBytes, 0},
{NULL, sizeof(uint8_t), PaddingBytesAfterBitmapBytes, 1},
{SkipNameDataWrite ? NULL : NamesBegin, sizeof(uint8_t), NamesSize, 0},
- {NULL, sizeof(uint8_t), PaddingBytesAfterNames, 1}};
+ {NULL, sizeof(uint8_t), PaddingBytesAfterNames, 1},
+ {VTableBegin, sizeof(uint8_t), VTableSectionSize, 0},
+ {NULL, sizeof(uint8_t), PaddingBytesAfterVTable, 1},
+ {SkipNameDataWrite ? NULL : VNamesBegin, sizeof(uint8_t), VNamesSize, 0},
+ {NULL, sizeof(uint8_t), PaddingBytesAfterVNames, 1}};
if (Writer->Write(Writer, IOVecData, sizeof(IOVecData) / sizeof(*IOVecData)))
return -1;
generated by cgit v1.1 at 2024-11-04 00:45:33 +0000