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Add more debug logging to g_get_shared_cache_class_info_body 

llvm-svn: 268303
This commit is contained in:
Enrico Granata 2016-05-02 20:58:15 +00:00
parent 732c4646ee
commit 1dccd9da01
1 changed files with 14 additions and 1 deletions
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15
lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp
View File

@ -228,7 +228,7 @@ __lldb_apple_objc_v2_get_shared_cache_class_info (void *objc_opt_ro_ptr,
uint32_t idx = 0;
DEBUG_PRINTF ("objc_opt_ro_ptr = %p\n", objc_opt_ro_ptr);
DEBUG_PRINTF ("class_infos_ptr = %p\n", class_infos_ptr);
DEBUG_PRINTF ("class_infos_byte_size = %u (%" PRIu64 " class infos)\n", class_infos_byte_size, (size_t)(class_infos_byte_size/sizeof(ClassInfo)));
DEBUG_PRINTF ("class_infos_byte_size = %u (%llu class infos)\n", class_infos_byte_size, (uint64_t)(class_infos_byte_size/sizeof(ClassInfo)));
if (objc_opt_ro_ptr)
{
const objc_opt_t *objc_opt = (objc_opt_t *)objc_opt_ro_ptr;
@ -257,6 +257,7 @@ __lldb_apple_objc_v2_get_shared_cache_class_info (void *objc_opt_ro_ptr,
else
clsopt = (const objc_clsopt_t*)((uint8_t *)objc_opt + objc_opt->clsopt_offset);
const size_t max_class_infos = class_infos_byte_size/sizeof(ClassInfo);
DEBUG_PRINTF("max_class_infos = %llu\n", (uint64_t)max_class_infos);
ClassInfo *class_infos = (ClassInfo *)class_infos_ptr;
int32_t invalidEntryOffset = 0;
// this is safe to do because the version field order is invariant
@ -268,13 +269,21 @@ __lldb_apple_objc_v2_get_shared_cache_class_info (void *objc_opt_ro_ptr,
DEBUG_PRINTF ("clsopt->capacity = %u\n", clsopt->capacity);
DEBUG_PRINTF ("clsopt->mask = 0x%8.8x\n", clsopt->mask);
DEBUG_PRINTF ("classOffsets = %p\n", classOffsets);
DEBUG_PRINTF("invalidEntryOffset = %d\n", invalidEntryOffset);
for (uint32_t i=0; i<clsopt->capacity; ++i)
{
const int32_t clsOffset = classOffsets[i].clsOffset;
DEBUG_PRINTF("clsOffset[%u] = %u\n", i, clsOffset);
if (clsOffset & 1)
{
DEBUG_PRINTF("clsOffset & 1\n");
continue; // duplicate
}
else if (clsOffset == invalidEntryOffset)
{
DEBUG_PRINTF("clsOffset == invalidEntryOffset\n");
continue; // invalid offset
}
if (class_infos && idx < max_class_infos)
{
@ -288,6 +297,10 @@ __lldb_apple_objc_v2_get_shared_cache_class_info (void *objc_opt_ro_ptr,
h = ((h << 5) + h) + c;
class_infos[idx].hash = h;
}
else
{
DEBUG_PRINTF("not(class_infos && idx < max_class_infos)\n");
}
++idx;
}