[Scummvm-cvs-logs] SF.net SVN: scummvm:[50111] scummvm/trunk/backends
Bluddy at users.sourceforge.net
Bluddy at users.sourceforge.net
Mon Jun 21 13:51:19 CEST 2010
Revision: 50111
http://scummvm.svn.sourceforge.net/scummvm/?rev=50111&view=rev
Author: Bluddy
Date: 2010-06-21 11:51:19 +0000 (Mon, 21 Jun 2010)
Log Message:
-----------
PSP: switched loader to use PSP's debug mechanism
Modified Paths:
--------------
scummvm/trunk/backends/platform/psp/psploader.cpp
scummvm/trunk/backends/plugins/psp/psp-provider.cpp
Modified: scummvm/trunk/backends/platform/psp/psploader.cpp
===================================================================
--- scummvm/trunk/backends/platform/psp/psploader.cpp 2010-06-21 10:51:14 UTC (rev 50110)
+++ scummvm/trunk/backends/platform/psp/psploader.cpp 2010-06-21 11:51:19 UTC (rev 50111)
@@ -37,24 +37,20 @@
#include "backends/platform/psp/psploader.h"
#include "backends/platform/psp/powerman.h"
-//#define __PSP_DEBUG_PLUGINS__
+//#define __PSP_DEBUG_FUNCS__ /* For debugging the stack */
+//#define __PSP_DEBUG_PRINT__
-#ifdef __PSP_DEBUG_PLUGINS__
-#define DBG(x,...) fprintf(stderr,x, ## __VA_ARGS__)
-#else
-#define DBG(x,...)
-#endif
+#include "backends/platform/psp/trace.h"
-#define seterror(x,...) fprintf(stderr,x, ## __VA_ARGS__)
-
extern char __plugin_hole_start; // Indicates start of hole in program file for shorts
extern char __plugin_hole_end; // Indicates end of hole in program file
-extern char _gp[]; // Value of gp register
+extern char _gp[]; // Value of gp register
DECLARE_SINGLETON(ShortSegmentManager) // For singleton
// Get rid of symbol table in memory
void DLObject::discard_symtab() {
+ DEBUG_ENTER_FUNC();
free(_symtab);
free(_strtab);
_symtab = NULL;
@@ -64,6 +60,7 @@
// Unload all objects from memory
void DLObject::unload() {
+ DEBUG_ENTER_FUNC();
discard_symtab();
free(_segment);
_segment = NULL;
@@ -84,18 +81,19 @@
*
*/
bool DLObject::relocate(int fd, unsigned long offset, unsigned long size, void *relSegment) {
+ DEBUG_ENTER_FUNC();
Elf32_Rel *rel = NULL; // relocation entry
// Allocate memory for relocation table
if (!(rel = (Elf32_Rel *)malloc(size))) {
- seterror("Out of memory.");
+ PSP_ERROR("Out of memory.");
return false;
}
// Read in our relocation table
if (lseek(fd, offset, SEEK_SET) < 0 ||
read(fd, rel, size) != (ssize_t)size) {
- seterror("Relocation table load failed.");
+ PSP_ERROR("Relocation table load failed.");
free(rel);
return false;
}
@@ -103,7 +101,7 @@
// Treat each relocation entry. Loop over all of them
int cnt = size / sizeof(*rel);
- DBG("Loaded relocation table. %d entries. base address=%p\n", cnt, relSegment);
+ PSP_DEBUG_PRINT("Loaded relocation table. %d entries. base address=%p\n", cnt, relSegment);
bool seenHi16 = false; // For treating HI/LO16 commands
int firstHi16 = -1; // Mark the point of the first hi16 seen
@@ -127,7 +125,7 @@
// Get the target instruction in the code
unsigned int *target = (unsigned int *)((char *)relSegment + rel[i].r_offset);
- unsigned int origTarget = *target; // Save for debugging
+ PSP_DEBUG_DO(unsigned int origTarget = *target); // Save for debugging
// Act differently based on the type of relocation
switch (REL_TYPE(rel[i].r_info)) {
@@ -142,7 +140,7 @@
lastHiSymVal = sym->st_value;
hi16InShorts = (ShortsMan.inGeneralSegment((char *)sym->st_value)); // Fix for problem with switching btw segments
if (debugRelocs[0]++ < DEBUG_NUM) // Print only a set number
- DBG("R_MIPS_HI16: i=%d, offset=%x, ahl = %x, target = %x\n",
+ PSP_DEBUG_PRINT("R_MIPS_HI16: i=%d, offset=%x, ahl = %x, target = %x\n",
i, rel[i].r_offset, ahl, *target);
}
break;
@@ -150,7 +148,7 @@
case R_MIPS_LO16: // Absolute addressing. Needs a HI16 to come before it
if (sym->st_shndx < SHN_LOPROC) { // Only shift for plugin section. (ie. has a real section index)
if (!seenHi16) { // We MUST have seen HI16 first
- seterror("R_MIPS_LO16 w/o preceding R_MIPS_HI16 at relocation %d!\n", i);
+ PSP_ERROR("R_MIPS_LO16 w/o preceding R_MIPS_HI16 at relocation %d!\n", i);
free(rel);
return false;
}
@@ -195,10 +193,10 @@
*target |= relocation & 0xffff; // Take the lower 16 bits of the relocation
if (debugRelocs[1]++ < DEBUG_NUM)
- DBG("R_MIPS_LO16: i=%d, offset=%x, a=%x, ahl = %x, lastTarget = %x, origt = %x, target = %x\n",
+ PSP_DEBUG_PRINT("R_MIPS_LO16: i=%d, offset=%x, a=%x, ahl = %x, lastTarget = %x, origt = %x, target = %x\n",
i, rel[i].r_offset, a, ahl, *lastTarget, origTarget, *target);
if (lo16InShorts && debugRelocs[2]++ < DEBUG_NUM)
- DBG("R_MIPS_LO16s: i=%d, offset=%x, a=%x, ahl = %x, lastTarget = %x, origt = %x, target = %x\n",
+ PSP_DEBUG_PRINT("R_MIPS_LO16s: i=%d, offset=%x, a=%x, ahl = %x, lastTarget = %x, origt = %x, target = %x\n",
i, rel[i].r_offset, a, ahl, *lastTarget, origTarget, *target);
}
break;
@@ -212,11 +210,11 @@
*target |= (relocation & 0x03ffffff);
if (debugRelocs[3]++ < DEBUG_NUM)
- DBG("R_MIPS_26: i=%d, offset=%x, symbol=%d, stinfo=%x, a=%x, origTarget=%x, target=%x\n",
+ PSP_DEBUG_PRINT("R_MIPS_26: i=%d, offset=%x, symbol=%d, stinfo=%x, a=%x, origTarget=%x, target=%x\n",
i, rel[i].r_offset, REL_INDEX(rel[i].r_info), sym->st_info, a, origTarget, *target);
} else {
if (debugRelocs[4]++ < DEBUG_NUM)
- DBG("R_MIPS_26: i=%d, offset=%x, symbol=%d, stinfo=%x, a=%x, origTarget=%x, target=%x\n",
+ PSP_DEBUG_PRINT("R_MIPS_26: i=%d, offset=%x, symbol=%d, stinfo=%x, a=%x, origTarget=%x, target=%x\n",
i, rel[i].r_offset, REL_INDEX(rel[i].r_info), sym->st_info, a, origTarget, *target);
}
break;
@@ -233,7 +231,7 @@
*target |= relocation & 0xffff;
if (debugRelocs[5]++ < DEBUG_NUM)
- DBG("R_MIPS_GPREL16: i=%d, a=%x, gpVal=%x, origTarget=%x, target=%x, offset=%x\n",
+ PSP_DEBUG_PRINT("R_MIPS_GPREL16: i=%d, a=%x, gpVal=%x, origTarget=%x, target=%x, offset=%x\n",
i, a, _gpVal, origTarget, *target, _shortsSegment->getOffset());
}
@@ -250,24 +248,25 @@
*target = relocation;
if (debugRelocs[6]++ < DEBUG_NUM)
- DBG("R_MIPS_32: i=%d, a=%x, origTarget=%x, target=%x\n", i, a, origTarget, *target);
+ PSP_DEBUG_PRINT("R_MIPS_32: i=%d, a=%x, origTarget=%x, target=%x\n", i, a, origTarget, *target);
}
break;
default:
- seterror("Unknown relocation type %x at relocation %d.\n", REL_TYPE(rel[i].r_info), i);
+ PSP_ERROR("Unknown relocation type %x at relocation %d.\n", REL_TYPE(rel[i].r_info), i);
free(rel);
return false;
}
}
- DBG("Done with relocation. extendedHi16=%d\n\n", extendedHi16);
+ PSP_DEBUG_PRINT("Done with relocation. extendedHi16=%d\n\n", extendedHi16);
free(rel);
return true;
}
bool DLObject::readElfHeader(int fd, Elf32_Ehdr *ehdr) {
+ DEBUG_ENTER_FUNC();
// Start reading the elf header. Check for errors
if (read(fd, ehdr, sizeof(*ehdr)) != sizeof(*ehdr) ||
memcmp(ehdr->e_ident, ELFMAG, SELFMAG) || // Check MAGIC
@@ -275,31 +274,32 @@
ehdr->e_machine != EM_MIPS || // Check for MIPS machine type
ehdr->e_phentsize < sizeof(Elf32_Phdr) || // Check for size of program header
ehdr->e_shentsize != sizeof(Elf32_Shdr)) { // Check for size of section header
- seterror("Invalid file type.");
+ PSP_ERROR("Invalid file type.");
return false;
}
- DBG("phoff = %d, phentsz = %d, phnum = %d\n",
+ PSP_DEBUG_PRINT("phoff = %d, phentsz = %d, phnum = %d\n",
ehdr->e_phoff, ehdr->e_phentsize, ehdr->e_phnum);
return true;
}
bool DLObject::readProgramHeaders(int fd, Elf32_Ehdr *ehdr, Elf32_Phdr *phdr, int num) {
+ DEBUG_ENTER_FUNC();
// Read program header
if (lseek(fd, ehdr->e_phoff + sizeof(*phdr)*num, SEEK_SET) < 0 ||
read(fd, phdr, sizeof(*phdr)) != sizeof(*phdr)) {
- seterror("Program header load failed.");
+ PSP_ERROR("Program header load failed.");
return false;
}
// Check program header values
if (phdr->p_type != PT_LOAD || phdr->p_filesz > phdr->p_memsz) {
- seterror("Invalid program header.");
+ PSP_ERROR("Invalid program header.");
return false;
}
- DBG("offs = %x, filesz = %x, memsz = %x, align = %x\n",
+ PSP_DEBUG_PRINT("offs = %x, filesz = %x, memsz = %x, align = %x\n",
phdr->p_offset, phdr->p_filesz, phdr->p_memsz, phdr->p_align);
return true;
@@ -307,6 +307,7 @@
}
bool DLObject::loadSegment(int fd, Elf32_Phdr *phdr) {
+ DEBUG_ENTER_FUNC();
char *baseAddress = 0;
@@ -315,15 +316,15 @@
// Attempt to allocate memory for segment
int extra = phdr->p_vaddr % phdr->p_align; // Get extra length TODO: check logic here
- DBG("extra mem is %x\n", extra);
+ PSP_DEBUG_PRINT("extra mem is %x\n", extra);
if (phdr->p_align < 0x10000) phdr->p_align = 0x10000; // Fix for wrong alignment on e.g. AGI
if (!(_segment = (char *)memalign(phdr->p_align, phdr->p_memsz + extra))) {
- seterror("Out of memory.\n");
+ PSP_ERROR("Out of memory.\n");
return false;
}
- DBG("allocated segment @ %p\n", _segment);
+ PSP_DEBUG_PRINT("allocated segment @ %p\n", _segment);
// Get offset to load segment into
baseAddress = (char *)_segment + phdr->p_vaddr;
@@ -332,20 +333,20 @@
_shortsSegment = ShortsMan.newSegment(phdr->p_memsz, (char *)phdr->p_vaddr);
baseAddress = _shortsSegment->getStart();
- DBG("shorts segment @ %p to %p. Segment wants to be at %x. Offset=%x\n",
+ PSP_DEBUG_PRINT("shorts segment @ %p to %p. Segment wants to be at %x. Offset=%x\n",
_shortsSegment->getStart(), _shortsSegment->getEnd(), phdr->p_vaddr, _shortsSegment->getOffset());
}
// Set bss segment to 0 if necessary (assumes bss is at the end)
if (phdr->p_memsz > phdr->p_filesz) {
- DBG("Setting %p to %p to 0 for bss\n", baseAddress + phdr->p_filesz, baseAddress + phdr->p_memsz);
+ PSP_DEBUG_PRINT("Setting %p to %p to 0 for bss\n", baseAddress + phdr->p_filesz, baseAddress + phdr->p_memsz);
memset(baseAddress + phdr->p_filesz, 0, phdr->p_memsz - phdr->p_filesz);
}
// Read the segment into memory
if (lseek(fd, phdr->p_offset, SEEK_SET) < 0 ||
read(fd, baseAddress, phdr->p_filesz) != (ssize_t)phdr->p_filesz) {
- seterror("Segment load failed.");
+ PSP_ERROR("Segment load failed.");
return false;
}
@@ -354,12 +355,13 @@
Elf32_Shdr * DLObject::loadSectionHeaders(int fd, Elf32_Ehdr *ehdr) {
+ DEBUG_ENTER_FUNC();
Elf32_Shdr *shdr = NULL;
// Allocate memory for section headers
if (!(shdr = (Elf32_Shdr *)malloc(ehdr->e_shnum * sizeof(*shdr)))) {
- seterror("Out of memory.");
+ PSP_ERROR("Out of memory.");
return NULL;
}
@@ -367,7 +369,7 @@
if (lseek(fd, ehdr->e_shoff, SEEK_SET) < 0 ||
read(fd, shdr, ehdr->e_shnum * sizeof(*shdr)) !=
(ssize_t)(ehdr->e_shnum * sizeof(*shdr))) {
- seterror("Section headers load failed.");
+ PSP_ERROR("Section headers load failed.");
return NULL;
}
@@ -375,11 +377,12 @@
}
int DLObject::loadSymbolTable(int fd, Elf32_Ehdr *ehdr, Elf32_Shdr *shdr) {
+ DEBUG_ENTER_FUNC();
// Loop over sections, looking for symbol table linked to a string table
for (int i = 0; i < ehdr->e_shnum; i++) {
- //DBG("Section %d: type = %x, size = %x, entsize = %x, link = %x\n",
- // i, shdr[i].sh_type, shdr[i].sh_size, shdr[i].sh_entsize, shdr[i].sh_link);
+ PSP_DEBUG_PRINT("Section %d: type = %x, size = %x, entsize = %x, link = %x\n",
+ i, shdr[i].sh_type, shdr[i].sh_size, shdr[i].sh_entsize, shdr[i].sh_link);
if (shdr[i].sh_type == SHT_SYMTAB &&
shdr[i].sh_entsize == sizeof(Elf32_Sym) &&
@@ -392,15 +395,15 @@
// Check for no symbol table
if (_symtab_sect < 0) {
- seterror("No symbol table.");
+ PSP_ERROR("No symbol table.");
return -1;
}
- DBG("Symbol section at section %d, size %x\n", _symtab_sect, shdr[_symtab_sect].sh_size);
+ PSP_DEBUG_PRINT("Symbol section at section %d, size %x\n", _symtab_sect, shdr[_symtab_sect].sh_size);
// Allocate memory for symbol table
if (!(_symtab = malloc(shdr[_symtab_sect].sh_size))) {
- seterror("Out of memory.");
+ PSP_ERROR("Out of memory.");
return -1;
}
@@ -408,25 +411,26 @@
if (lseek(fd, shdr[_symtab_sect].sh_offset, SEEK_SET) < 0 ||
read(fd, _symtab, shdr[_symtab_sect].sh_size) !=
(ssize_t)shdr[_symtab_sect].sh_size) {
- seterror("Symbol table load failed.");
+ PSP_ERROR("Symbol table load failed.");
return -1;
}
// Set number of symbols
_symbol_cnt = shdr[_symtab_sect].sh_size / sizeof(Elf32_Sym);
- DBG("Loaded %d symbols.\n", _symbol_cnt);
+ PSP_DEBUG_PRINT("Loaded %d symbols.\n", _symbol_cnt);
return _symtab_sect;
}
bool DLObject::loadStringTable(int fd, Elf32_Shdr *shdr) {
+ DEBUG_ENTER_FUNC();
int string_sect = shdr[_symtab_sect].sh_link;
// Allocate memory for string table
if (!(_strtab = (char *)malloc(shdr[string_sect].sh_size))) {
- seterror("Out of memory.");
+ PSP_ERROR("Out of memory.");
return false;
}
@@ -434,16 +438,17 @@
if (lseek(fd, shdr[string_sect].sh_offset, SEEK_SET) < 0 ||
read(fd, _strtab, shdr[string_sect].sh_size) !=
(ssize_t)shdr[string_sect].sh_size) {
- seterror("Symbol table strings load failed.");
+ PSP_ERROR("Symbol table strings load failed.");
return false;
}
return true;
}
void DLObject::relocateSymbols(Elf32_Addr offset, Elf32_Addr shortsOffset) {
+ DEBUG_ENTER_FUNC();
int shortsCount = 0, othersCount = 0;
- DBG("Relocating symbols by %x. Shorts offset=%x\n", offset, shortsOffset);
+ PSP_DEBUG_PRINT("Relocating symbols by %x. Shorts offset=%x\n", offset, shortsOffset);
// Loop over symbols, add relocation offset
Elf32_Sym *s = (Elf32_Sym *)_symtab;
@@ -454,22 +459,23 @@
othersCount++;
s->st_value += offset;
if (s->st_value < (Elf32_Addr)_segment || s->st_value > (Elf32_Addr)_segment + _segmentSize)
- seterror("Symbol out of bounds! st_value = %x\n", s->st_value);
+ PSP_ERROR("Symbol out of bounds! st_value = %x\n", s->st_value);
} else { // shorts section
shortsCount++;
s->st_value += shortsOffset;
if (!_shortsSegment->inSegment((char *)s->st_value))
- seterror("Symbol out of bounds! st_value = %x\n", s->st_value);
+ PSP_ERROR("Symbol out of bounds! st_value = %x\n", s->st_value);
}
}
}
- DBG("Relocated %d short symbols, %d others.\n", shortsCount, othersCount);
+ PSP_DEBUG_PRINT("Relocated %d short symbols, %d others.\n", shortsCount, othersCount);
}
bool DLObject::relocateRels(int fd, Elf32_Ehdr *ehdr, Elf32_Shdr *shdr) {
+ DEBUG_ENTER_FUNC();
// Loop over sections, finding relocation sections
for (int i = 0; i < ehdr->e_shnum; i++) {
@@ -500,7 +506,7 @@
bool DLObject::load(int fd) {
- fprintf(stderr, "In DLObject::load\n");
+ DEBUG_ENTER_FUNC();
Elf32_Ehdr ehdr; // ELF header
Elf32_Phdr phdr; // Program header
@@ -512,9 +518,8 @@
}
for (int i = 0; i < ehdr.e_phnum; i++) { // Load our 2 segments
+ PSP_DEBUG_PRINT("Loading segment %d\n", i);
- fprintf(stderr, "Loading segment %d\n", i);
-
if (readProgramHeaders(fd, &ehdr, &phdr, i) == false)
return false;
@@ -543,19 +548,20 @@
}
bool DLObject::open(const char *path) {
+ DEBUG_ENTER_FUNC();
int fd;
void *ctors_start, *ctors_end;
- DBG("open(\"%s\")\n", path);
+ PSP_DEBUG_PRINT("open(\"%s\")\n", path);
// Get the address of the global pointer
_gpVal = (unsigned int) & _gp;
- DBG("_gpVal is %x\n", _gpVal);
+ PSP_DEBUG_PRINT("_gpVal is %x\n", _gpVal);
PowerMan.beginCriticalSection();
if ((fd = ::open(path, O_RDONLY)) < 0) {
- seterror("%s not found.", path);
+ PSP_ERROR("%s not found.", path);
return false;
}
@@ -581,21 +587,22 @@
if (ctors_start == NULL || ctors_end == NULL || _dtors_start == NULL ||
_dtors_end == NULL) {
- seterror("Missing ctors/dtors.");
+ PSP_ERROR("Missing ctors/dtors.");
_dtors_start = _dtors_end = NULL;
unload();
return false;
}
- DBG("Calling constructors.\n");
+ PSP_DEBUG_PRINT("Calling constructors.\n");
for (void (**f)(void) = (void (**)(void))ctors_start; f != ctors_end; f++)
(**f)();
- DBG("%s opened ok.\n", path);
+ PSP_DEBUG_PRINT("%s opened ok.\n", path);
return true;
}
bool DLObject::close() {
+ DEBUG_ENTER_FUNC();
if (_dtors_start != NULL && _dtors_end != NULL)
for (void (**f)(void) = (void (**)(void))_dtors_start; f != _dtors_end; f++)
(**f)();
@@ -605,10 +612,11 @@
}
void *DLObject::symbol(const char *name) {
- DBG("symbol(\"%s\")\n", name);
+ DEBUG_ENTER_FUNC();
+ PSP_DEBUG_PRINT("symbol(\"%s\")\n", name);
if (_symtab == NULL || _strtab == NULL || _symbol_cnt < 1) {
- seterror("No symbol table loaded.");
+ PSP_ERROR("No symbol table loaded.");
return NULL;
}
@@ -621,23 +629,25 @@
!strcmp(name, _strtab + s->st_name)) {
// We found the symbol
- DBG("=> %p\n", (void*)s->st_value);
+ PSP_DEBUG_PRINT("=> %p\n", (void*)s->st_value);
return (void*)s->st_value;
}
}
- seterror("Symbol \"%s\" not found.", name);
+ PSP_ERROR("Symbol \"%s\" not found.", name);
return NULL;
}
ShortSegmentManager::ShortSegmentManager() {
+ DEBUG_ENTER_FUNC();
_shortsStart = &__plugin_hole_start ;
_shortsEnd = &__plugin_hole_end;
}
ShortSegmentManager::Segment *ShortSegmentManager::newSegment(int size, char *origAddr) {
+ DEBUG_ENTER_FUNC();
char *lastAddress = origAddr;
Common::List<Segment *>::iterator i;
@@ -654,7 +664,7 @@
lastAddress += 4 - ((Elf32_Addr)lastAddress & 3); // Round up to multiple of 4
if (lastAddress + size > _shortsEnd) {
- seterror("Error. No space in shorts segment for %x bytes. Last address is %p, max address is %p.\n",
+ PSP_ERROR("No space in shorts segment for %x bytes. Last address is %p, max address is %p.\n",
size, lastAddress, _shortsEnd);
return NULL;
}
@@ -665,14 +675,15 @@
_list.insert(i, seg);
- DBG("Shorts segment size %x allocated. End = %p. Remaining space = %x. Highest so far is %p.\n",
+ PSP_DEBUG_PRINT("Shorts segment size %x allocated. End = %p. Remaining space = %x. Highest so far is %p.\n",
size, lastAddress + size, _shortsEnd - _list.back()->getEnd(), _highestAddress);
return seg;
}
void ShortSegmentManager::deleteSegment(ShortSegmentManager::Segment *seg) {
- DBG("Deleting shorts segment from %p to %p.\n\n", seg->getStart(), seg->getEnd());
+ DEBUG_ENTER_FUNC();
+ PSP_DEBUG_PRINT("Deleting shorts segment from %p to %p.\n\n", seg->getStart(), seg->getEnd());
_list.remove(seg);
delete seg;
}
Modified: scummvm/trunk/backends/plugins/psp/psp-provider.cpp
===================================================================
--- scummvm/trunk/backends/plugins/psp/psp-provider.cpp 2010-06-21 10:51:14 UTC (rev 50110)
+++ scummvm/trunk/backends/plugins/psp/psp-provider.cpp 2010-06-21 11:51:19 UTC (rev 50111)
@@ -31,7 +31,9 @@
#include "backends/platform/psp/psploader.h"
+#include "backends/platform/psp/trace.h"
+
class PSPPlugin : public DynamicPlugin {
protected:
void *_dlHandle;
@@ -95,13 +97,13 @@
bool PSPPluginProvider::isPluginFilename(const Common::FSNode &node) const {
// Check the plugin suffix
Common::String filename = node.getName();
- fprintf(stderr, "Testing name %s", filename.c_str());
+ PSP_DEBUG_PRINT("Testing name %s", filename.c_str());
if (!filename.hasSuffix(".PLG") && !filename.hasSuffix(".plg")) {
- fprintf(stderr," fail.\n");
+ PSP_DEBUG_PRINT(" fail.\n");
return false;
}
- fprintf(stderr," success!\n");
+ PSP_DEBUG_PRINT(" success!\n");
return true;
}
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