Skip to content

Testing - Port tc-print functions to PPC64 #172

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Testing - Port tc-print functions to PPC64 #172

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 10 additions & 0 deletions hphp/tools/tc-print/CMakeLists.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -10,4 +10,14 @@ if (LibXed_INCLUDE_DIR AND LibXed_LIBRARY)
target_link_libraries(tc-print ${HHVM_LINK_LIBRARIES})
embed_all_systemlibs(tc-print "${CMAKE_CURRENT_BINARY_DIR}/../.."
"${CMAKE_CURRENT_BINARY_DIR}/tc-print")
elseif(IS_PPC64)
add_executable(tc-print "mappers.cpp" "offline-trans-data.cpp"
"offline-x86-code.cpp" "perf-events.cpp"
"repo-wrapper.cpp" "tc-print.cpp"
"../../hhvm/global-variables.cpp"
"../../hhvm/process-init.cpp")
link_object_libraries(tc-print ${HHVM_WHOLE_ARCHIVE_LIBRARIES})
target_link_libraries(tc-print ${HHVM_LINK_LIBRARIES})
embed_all_systemlibs(tc-print "${CMAKE_CURRENT_BINARY_DIR}/../.."
"${CMAKE_CURRENT_BINARY_DIR}/tc-print")
endif()
98 changes: 89 additions & 9 deletions hphp/tools/tc-print/offline-x86-code.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -90,10 +90,12 @@ TCRegion OfflineX86Code::findTCRegionContaining(TCA addr) const {
}

void OfflineX86Code::xedInit() {
#ifdef __x86_64__
xed_state_init(&xed_state, XED_MACHINE_MODE_LONG_64,
XED_ADDRESS_WIDTH_64b, XED_ADDRESS_WIDTH_64b);
xed_tables_init();
xed_syntax = getenv("HHVM_INTEL_DISAS") ? XED_SYNTAX_INTEL : XED_SYNTAX_ATT;
#endif
}


Expand Down Expand Up @@ -124,7 +126,7 @@ TCA OfflineX86Code::getTransJmpTargets(const TransRec *transRec,

return aFallThru;
}

#ifdef __x86_64__
TCA OfflineX86Code::collectJmpTargets(FILE *file,
TCA fileStartAddr,
TCA codeStartAddr,
Expand Down Expand Up @@ -191,14 +193,6 @@ TCA OfflineX86Code::collectJmpTargets(FILE *file,
return 0;
}

void OfflineX86Code::printDisasm(TCA startAddr, uint32_t len,
const vector<TransBCMapping>& bcMap,
const PerfEventsMap<TCA>& perfEvents) {
TCRegion tcr = findTCRegionContaining(startAddr);
disasm(tcRegions[tcr].file, tcRegions[tcr].baseAddr, startAddr, len,
perfEvents, BCMappingInfo(tcr, bcMap));
}

// Disassemble the code from the given raw file, whose initial address is given
// by fileStartAddr, for the address range given by
// [codeStartAddr, codeStartAddr + codeLen)
Expand Down Expand Up @@ -325,6 +319,92 @@ void OfflineX86Code::disasm(FILE* file,
ip += instrLen;
}
}
#elif defined(__powerpc64__)
static constexpr auto kIndent = 4;

TCA OfflineX86Code::collectJmpTargets(FILE *file,
TCA fileStartAddr,
TCA codeStartAddr,
uint64_t codeLen,
vector<TCA> *jmpTargets) {

return 0;
}

// Disassemble the code from the given raw file, whose initial address is given
// by fileStartAddr, for the address range given by
// [codeStartAddr, codeStartAddr + codeLen)

void OfflineX86Code::disasm(FILE* file,
TCA fileStartAddr,
TCA codeStartAddr,
uint64_t codeLen,
const PerfEventsMap<TCA>& perfEvents,
BCMappingInfo bcMappingInfo,
bool printAddr /* =true */,
bool printBinary /* =false */) {

//char codeStr[MAX_INSTR_ASM_LEN];
uint8_t* code = (uint8_t*) alloca(codeLen);
uint8_t* frontier;
uint32_t instrLen = 4;
TCA ip;
size_t currBC = 0;

if (codeLen == 0) return;

if (fseek(file, codeStartAddr - fileStartAddr, SEEK_SET)) {
error("disasm error: seeking file");
}

size_t readLen = fread(code, codeLen, 1, file);
if (readLen != 1) error("disasm error: reading file");

// Decode and print each instruction
for (frontier = code, ip = codeStartAddr; frontier < code + codeLen; ) {
std::ostringstream codeStr;
ppc64_asm::Disassembler disasm(false, false, kIndent + 4,
color(ANSI_COLOR_BROWN));
disasm.disassembly(codeStr, frontier);

// Annotate the x86 with its bytecode.
currBC = printBCMapping(bcMappingInfo, currBC, (TCA)ip);

if (printAddr) printf("%14p: ", ip);

if (printBinary) {
uint32_t i;
for (i=0; i < instrLen; i++) {
printf("%02X", frontier[i]);
}
for (; i < 16; i++) {
printf(" ");
}
}

if (!perfEvents.empty()) {
printEventStats((TCA)ip, instrLen, perfEvents);
} else {
printf("%48s", "");
}

const std::string tmp = codeStr.str();
const char* cstr = tmp.c_str();
printf("%s", cstr);

frontier += instrLen;
ip += instrLen;
}
}
#endif

void OfflineX86Code::printDisasm(TCA startAddr, uint32_t len,
const vector<TransBCMapping>& bcMap,
const PerfEventsMap<TCA>& perfEvents) {
TCRegion tcr = findTCRegionContaining(startAddr);
disasm(tcRegions[tcr].file, tcRegions[tcr].baseAddr, startAddr, len,
perfEvents, BCMappingInfo(tcr, bcMap));
}

void OfflineX86Code::loadSymbolsMap() {
loadSymbolsMapNm();
Expand Down
8 changes: 8 additions & 0 deletions hphp/tools/tc-print/offline-x86-code.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -20,15 +20,20 @@
#include <string>
#include <unordered_map>

#include "hphp/ppc64-asm/asm-ppc64.h"
#include "hphp/ppc64-asm/dasm-ppc64.h"

#include "hphp/runtime/vm/unit.h"
#include "hphp/runtime/vm/jit/translator.h"

#include "hphp/tools/tc-print/offline-trans-data.h"
#include "hphp/tools/tc-print/perf-events.h"

#ifdef __x86_64__
extern "C" {
#include <xed-interface.h>
}
#endif

namespace HPHP { namespace jit {

Expand Down Expand Up @@ -99,8 +104,11 @@ struct OfflineX86Code {

std::string dumpDir;
TCRegionRec tcRegions[TCRCount];

#ifdef __x86_64__
xed_state_t xed_state;
xed_syntax_enum_t xed_syntax;
#endif

std::unordered_map<TCA, std::string> addr2SymMap;

Expand Down