如何让atos打印损坏的名称？

Question

我正在使用-arch arm64 -o MyApp -s <slide> -f <symbol file>运行atos来符号化地址。但是，它像type metadata accessor for GradientView (in MyApp) (<compiler-generated>:0)一样打印行。我想让它打印出损坏的名字，例如_$s22FeatureImpl12LanguageCellC19GradientViewSo012GradientI0CvpACTk。我需要它的原因有很多，包括传递给链接器的订单文件。有没有办法用atos做到这一点？

Answer 1

我发现了一个没有atos的变通方法。我可以直接使用私有CoreSymbolication框架：

#import <Foundation/Foundation.h>
#include <stdint.h>
#include <mach/machine.h>
#include <mach-o/arch.h>
#include <architecture/byte_order.h>

struct sCSTypeRef {
    void* csCppData;    // typically retrieved using CSCppSymbol...::data(csData & 0xFFFFFFF8)
    void* csCppObj;        // a pointer to the actual CSCppObject
};
typedef struct sCSTypeRef CSTypeRef;

typedef CSTypeRef CSSymbolicatorRef;
typedef CSTypeRef CSSourceInfoRef;
typedef CSTypeRef CSSymbolOwnerRef;
typedef CSTypeRef CSSectionRef;
typedef CSTypeRef CSSegmentRef;
typedef CSTypeRef CSSymbolRef;
typedef CSTypeRef CSRegionRef;
typedef CSTypeRef CSUUIDRef;

CSSymbolicatorRef CSSymbolicatorCreateWithURLAndArchitecture(CFURLRef url, cpu_type_t type);
CSSymbolRef CSSymbolicatorGetSymbolWithAddressAtTime(CSSymbolicatorRef cs, vm_address_t addr, uint64_t time);
const char* CSSymbolGetMangledName(CSSymbolRef sym);

int main(int argc, const char * argv[]) {
    CFURLRef url = CFURLCreateWithFileSystemPath(NULL, CFSTR("/path/to/dSYM/binary"), kCFURLPOSIXPathStyle, false);
    CSSymbolicatorRef cs = CSSymbolicatorCreateWithURLAndArchitecture(url, 16777228 /* arm64 cputype */);
    int slide = ...;
    ptrdiff_t addr = ...;
    CSSymbolRef sym = CSSymbolicatorGetSymbolWithAddressAtTime(cs, addr - slide, 0);
    const char *name = CSSymbolGetMangledName(sym);
    printf("%s\n", name);
    return 0;
}

https://github.com/mountainstorm/CoreSymbolication/blob/master/CoreSymbolication/CoreSymbolication.h提供了原型