terminated by signal SIGSEGV in C

问题

I was writing a C program that reads the width and heights of a bmp image following (http://smsoftdev-solutions.blogspot.com.au/2014/07/code-for-reading-bmp-image-files.html). But I've met an error in terminal, it shows that:

i './a.out' terminated by signal SIGSEGV (Address boundary error)

I did some googling, they mention it's accessing extra memory problem, but I can't really find that in my code, any suggestion would be appreciated

#include <stdio.h>

struct __attribute__((__packed__)) BitmapHeader
{
    int width; 
    int height; 
};


void loadBmp(char* filePath, struct BitmapHeader bmpHeaderInfo){
    FILE* filePtr = fopen(filePath, "rb");

    unsigned char header[54];
    fread(header, sizeof(unsigned char), 54, filePtr);
}

int main(){
    char path2BMP[] = "/cup.bmp";
    struct BitmapHeader bmpHeaderInfo = {0};
    loadBmp(path2BMP, bmpHeaderInfo);
    return 0;
}

来源：https://stackoverflow.com/questions/36326567/terminated-by-signal-sigsegv-in-c