#include <assert.h>
-
#include <string.h>
+#include <iostream>
-
-#include "trace_parser.hpp"
#include "retrace.hpp"
-
-
-namespace retrace {
-
-struct Region
-{
- void *buffer;
- unsigned long long size;
-};
-
-typedef std::map<unsigned long long, Region> RegionMap;
-static RegionMap regionMap;
-
-
-static inline bool
-contains(RegionMap::iterator &it, unsigned long long address) {
- return it->first <= address && (it->first + it->second.size) > address;
-}
-
-
-static inline bool
-intersects(RegionMap::iterator &it, unsigned long long start, unsigned long long size) {
- unsigned long it_start = it->first;
- unsigned long it_stop = it->first + it->second.size;
- unsigned long stop = start + size;
- return it_start < stop && start < it_stop;
-}
-
-
-// Iterator to the first region that contains the address, or the first after
-static RegionMap::iterator
-lowerBound(unsigned long long address) {
- RegionMap::iterator it = regionMap.lower_bound(address);
-
- while (it != regionMap.begin()) {
- RegionMap::iterator pred = it;
- --pred;
- if (contains(pred, address)) {
- it = pred;
- } else {
- break;
- }
- }
-
- return it;
-}
-
-// Iterator to the first region that starts after the address
-static RegionMap::iterator
-upperBound(unsigned long long address) {
- RegionMap::iterator it = regionMap.upper_bound(address);
-
- return it;
-}
-
-void
-addRegion(unsigned long long address, void *buffer, unsigned long long size)
-{
- if (retrace::verbosity >= 2) {
- std::cout
- << "region "
- << std::hex
- << "0x" << address << "-0x" << (address + size)
- << " -> "
- << "0x" << (uintptr_t)buffer << "-0x" << ((uintptr_t)buffer + size)
- << std::dec
- << "\n";
- }
-
- if (!address) {
- // Ignore NULL pointer
- assert(!buffer);
- return;
- }
-
-#ifndef NDEBUG
- RegionMap::iterator start = lowerBound(address);
- RegionMap::iterator stop = upperBound(address + size);
- if (0) {
- // Forget all regions that intersect this new one.
- regionMap.erase(start, stop);
- } else {
- for (RegionMap::iterator it = start; it != stop; ++it) {
- std::cerr << std::hex << "warning: "
- "region 0x" << address << "-0x" << (address + size) << " "
- "intersects existing region 0x" << it->first << "-0x" << (it->first + it->second.size) << "\n" << std::dec;
- assert(intersects(it, address, size));
- }
- }
-#endif
-
- assert(buffer);
-
- Region region;
- region.buffer = buffer;
- region.size = size;
-
- regionMap[address] = region;
-}
-
-static RegionMap::iterator
-lookupRegion(unsigned long long address) {
- RegionMap::iterator it = regionMap.lower_bound(address);
-
- if (it == regionMap.end() ||
- it->first > address) {
- if (it == regionMap.begin()) {
- return regionMap.end();
- } else {
- --it;
- }
- }
-
- assert(contains(it, address));
- return it;
-}
-
-void
-delRegion(unsigned long long address) {
- RegionMap::iterator it = lookupRegion(address);
- if (it != regionMap.end()) {
- regionMap.erase(it);
- } else {
- assert(0);
- }
-}
-
-
-void
-delRegionByPointer(void *ptr) {
- for (RegionMap::iterator it = regionMap.begin(); it != regionMap.end(); ++it) {
- if (it->second.buffer == ptr) {
- regionMap.erase(it);
- return;
- }
- }
- assert(0);
-}
-
-void *
-lookupAddress(unsigned long long address) {
- RegionMap::iterator it = lookupRegion(address);
- if (it != regionMap.end()) {
- unsigned long long offset = address - it->first;
- assert(offset < it->second.size);
- void *addr = (char *)it->second.buffer + offset;
-
- if (retrace::verbosity >= 2) {
- std::cout
- << "region "
- << std::hex
- << "0x" << address
- << " <- "
- << "0x" << (uintptr_t)addr
- << std::dec
- << "\n";
- }
-
- return addr;
- }
-
- if (retrace::debug && address >= 64 * 1024 * 1024) {
- /* Likely not an offset, but an address that should had been swizzled */
- std::cerr << "warning: passing high address 0x" << std::hex << address << std::dec << " as uintptr_t\n";
- }
-
- return (void *)(uintptr_t)address;
-}
-
-
-class Translator : protected trace::Visitor
-{
-protected:
- bool bind;
-
- void *result;
-
- void visit(trace::Null *) {
- result = NULL;
- }
-
- void visit(trace::Blob *blob) {
- result = blob->toPointer(bind);
- }
-
- void visit(trace::Pointer *p) {
- result = lookupAddress(p->value);
- }
-
-public:
- Translator(bool _bind) :
- bind(_bind),
- result(NULL)
- {}
-
- void * operator() (trace::Value *node) {
- _visit(node);
- return result;
- }
-};
-
-
-void *
-toPointer(trace::Value &value, bool bind) {
- return Translator(bind) (&value);
-}
+#include "retrace_swizzle.hpp"
static void retrace_malloc(trace::Call &call) {
void *buffer = malloc(size);
if (!buffer) {
- std::cerr << "error: failed to allocated " << size << " bytes.";
+ std::cerr << "error: failed to allocate " << size << " bytes.";
return;
}
- addRegion(address, buffer, size);
+ retrace::addRegion(address, buffer, size);
}
static void retrace_memcpy(trace::Call &call) {
- void * dest = toPointer(call.arg(0));
- void * src = toPointer(call.arg(1));
+ void * dest = retrace::toPointer(call.arg(0));
+ void * src = retrace::toPointer(call.arg(1));
size_t n = call.arg(2).toUInt();
if (!dest || !src || !n) {
}
-const retrace::Entry stdc_callbacks[] = {
+const retrace::Entry retrace::stdc_callbacks[] = {
{"malloc", &retrace_malloc},
{"memcpy", &retrace_memcpy},
{NULL, NULL}
};
-
-
-} /* retrace */
projects / apitrace / blobdiff