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@zhuowei
Created Jun 8, 2021
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// dsc_extractor from https://github.com/apple-opensource/dyld/blob/1128192c016372ae94793d88530bc5978c1fce93/dyld3/shared-cache/dsc_extractor.cpp#L817
// test program
#include <stdio.h>
#include <stddef.h>
#include <dlfcn.h>
typedef int (*extractor_proc)(const char* shared_cache_file_path, const char* extraction_root_path,
void (^progress)(unsigned current, unsigned total));
int main(int argc, const char* argv[])
{
if ( argc != 3 ) {
fprintf(stderr, "usage: dsc_extractor <path-to-cache-file> <path-to-device-dir>\n");
return 1;
}
//void* handle = dlopen("/Volumes/my/src/dyld/build/Debug/dsc_extractor.bundle", RTLD_LAZY);
// zhuowei: the path
// void* handle = dlopen("/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/usr/lib/dsc_extractor.bundle", RTLD_LAZY);
void* handle = dlopen("/usr/lib/dsc_extractor.bundle", RTLD_LAZY);
if ( handle == NULL ) {
fprintf(stderr, "dsc_extractor.bundle could not be loaded\n");
return 1;
}
extractor_proc proc = (extractor_proc)dlsym(handle, "dyld_shared_cache_extract_dylibs_progress");
if ( proc == NULL ) {
fprintf(stderr, "dsc_extractor.bundle did not have dyld_shared_cache_extract_dylibs_progress symbol\n");
return 1;
}
int result = (*proc)(argv[1], argv[2], ^(unsigned c, unsigned total) { printf("%d/%d\n", c, total); } );
fprintf(stderr, "dyld_shared_cache_extract_dylibs_progress() => %d\n", result);
return 0;
}
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