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Use getsectiondata

This commit is contained in:
David Callahan 2015-06-09 12:19:24 -07:00
parent f88bc3eb73
commit cf8c2693af
1 changed files with 21 additions and 19 deletions
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40
React/Base/RCTBridge.m
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@ -48,11 +48,11 @@ typedef NS_ENUM(NSUInteger, RCTBridgeFields) {
}; };
#ifdef __LP64__ #ifdef __LP64__
typedef uint64_t RCTHeaderValue; typedef struct mach_header_64 *RCTHeaderValue;
typedef struct section_64 RCTHeaderSection; typedef struct section_64 RCTHeaderSection;
#define RCTGetSectByNameFromHeader getsectbynamefromheader_64 #define RCTGetSectByNameFromHeader getsectbynamefromheader_64
#else #else
typedef uint32_t RCTHeaderValue; typedef struct mach_header *RCTHeaderValue;
typedef struct section RCTHeaderSection; typedef struct section RCTHeaderSection;
#define RCTGetSectByNameFromHeader getsectbynamefromheader #define RCTGetSectByNameFromHeader getsectbynamefromheader
#endif #endif
@ -98,15 +98,15 @@ static NSArray *RCTJSMethods(void)
dladdr(&RCTJSMethods, &info); dladdr(&RCTJSMethods, &info);
const RCTHeaderValue mach_header = (RCTHeaderValue)info.dli_fbase; const RCTHeaderValue mach_header = (RCTHeaderValue)info.dli_fbase;
const RCTHeaderSection *section = RCTGetSectByNameFromHeader((void *)mach_header, "__DATA", "RCTImport"); unsigned long size = 0;
const uint8_t *sectionData = getsectiondata(mach_header, "__DATA", "RCTImport", &size);
if (section) { if (sectionData) {
for (RCTHeaderValue addr = section->offset; for (const uint8_t *addr = sectionData;
addr < section->offset + section->size; addr < sectionData + size;
addr += sizeof(const char **)) { addr += sizeof(const char **)) {
// Get data entry // Get data entry
NSString *entry = @(*(const char **)(mach_header + addr)); NSString *entry = @(*(const char **)addr);
[uniqueMethods addObject:entry]; [uniqueMethods addObject:entry];
} }
} }
@ -139,15 +139,15 @@ static NSArray *RCTBridgeModuleClassesByModuleID(void)
dladdr(&RCTBridgeModuleClassesByModuleID, &info); dladdr(&RCTBridgeModuleClassesByModuleID, &info);
const RCTHeaderValue mach_header = (RCTHeaderValue)info.dli_fbase; const RCTHeaderValue mach_header = (RCTHeaderValue)info.dli_fbase;
const RCTHeaderSection *section = RCTGetSectByNameFromHeader((void *)mach_header, "__DATA", "RCTExportModule"); unsigned long size;
const uint8_t *sectionData = getsectiondata(mach_header, "__DATA", "RCTExportModule", &size);
if (section) { if (sectionData) {
for (RCTHeaderValue addr = section->offset; for (const uint8_t *addr = sectionData;
addr < section->offset + section->size; addr < sectionData + size;
addr += sizeof(const char **)) { addr += sizeof(const char **)) {
// Get data entry // Get data entry
NSString *entry = @(*(const char **)(mach_header + addr)); NSString *entry = @(*(const char **)addr);
NSArray *parts = [[entry substringWithRange:(NSRange){2, entry.length - 3}] NSArray *parts = [[entry substringWithRange:(NSRange){2, entry.length - 3}]
componentsSeparatedByString:@" "]; componentsSeparatedByString:@" "];
@ -481,21 +481,23 @@ static RCTSparseArray *RCTExportedMethodsByModuleID(void)
dladdr(&RCTExportedMethodsByModuleID, &info); dladdr(&RCTExportedMethodsByModuleID, &info);
const RCTHeaderValue mach_header = (RCTHeaderValue)info.dli_fbase; const RCTHeaderValue mach_header = (RCTHeaderValue)info.dli_fbase;
const RCTHeaderSection *section = RCTGetSectByNameFromHeader((void *)mach_header, "__DATA", "RCTExport");
if (section == NULL) { unsigned long size;
const uint8_t *sectionData = getsectiondata(mach_header, "__DATA", "RCTExport", &size);
if (sectionData == NULL) {
return; return;
} }
NSArray *classes = RCTBridgeModuleClassesByModuleID(); NSArray *classes = RCTBridgeModuleClassesByModuleID();
NSMutableDictionary *methodsByModuleClassName = [NSMutableDictionary dictionaryWithCapacity:[classes count]]; NSMutableDictionary *methodsByModuleClassName = [NSMutableDictionary dictionaryWithCapacity:[classes count]];
for (RCTHeaderValue addr = section->offset; for (const uint8_t *addr = sectionData;
addr < section->offset + section->size; addr < sectionData + size;
addr += sizeof(const char **) * 3) { addr += sizeof(const char **) * 3) {
// Get data entry // Get data entry
const char **entries = (const char **)(mach_header + addr); const char **entries = (const char **) addr;
// Create method // Create method
RCTModuleMethod *moduleMethod = RCTModuleMethod *moduleMethod =