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Removed mmap code which lingered around from very early simulat0r approach

This commit is contained in:
bernd 2011-07-24 08:33:03 +02:00
parent cd1d43883d
commit 561daa9406
1 changed files with 1 additions and 79 deletions
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80
simulat0r/firmware/core/sysinit.c
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@ -1,83 +1,5 @@
#include <sys/mman.h> #include "core/sysinit.h"
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
//#define handle_error(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)
#define handle_error(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)
#include "core/lpc134x.h"
void testByte(void* addr) {
fprintf(stderr,"Testing address %x : read ",addr);
fprintf(stderr,"%x, write ",(int)(*((char*)addr)));
++(*((char*)addr));
fprintf(stderr,"%x",(int)(*((char*)addr)));
--(*((char*)addr));
fprintf(stderr," OK\n");
}
void testMemoryHack(void* addr,long size) {
fprintf(stderr,"Testing memory range %x - %x\n",addr,addr+size);
for(void* p=addr; p<addr+size; p+=sysconf(_SC_PAGE_SIZE)) {
testByte(p);
}
}
int setupMemoryHack(void* address, long size) {
char *addr;
int fd;
struct stat sb;
off_t offset, pa_offset;
size_t length;
ssize_t s;
FILE *tempfil=tmpfile();
fd = fileno(tempfil);
ftruncate(fd,size);
if (fd == -1)
handle_error("open");
if (fstat(fd, &sb) == -1) /* To obtain file size */
handle_error("fstat");
offset = 0;
pa_offset = offset & ~(sysconf(_SC_PAGE_SIZE) - 1);
/* offset for mmap() must be page aligned */
if (offset >= sb.st_size) {
fprintf(stderr, "offset is past end of file\n");
exit(EXIT_FAILURE);
}
length = size;
addr = mmap(address, length + offset - pa_offset, PROT_READ | PROT_WRITE,
MAP_PRIVATE, fd, pa_offset);
if (addr == MAP_FAILED)
handle_error("mmap");
if(addr!=address) {
fprintf(stderr, "mmap: wanted %x, got %x: ",address,addr);
handle_error("mmap address discrepancy");
}
// testMemoryHack(address,size);
fprintf(stderr,"Range %x tested\n",addr);
}
void systemInit() void systemInit()
{ {
// setupMemoryHack((void*)0x40000000,0x1000000);
// setupMemoryHack((void*)0x50000000,10*1024*1024);
// setupMemoryHack((void*)0x10000000,10*1024*1024);
// systick stuff unmappable setupMemoryHack((void*)0xe0000000,0x10000);
#if 0
printf("Test %d\n",SSP_SSP0CR0);
printf("Test2 %d\n",++SSP_SSP0CR0);
printf("Test3 pre %x\n",&SYSTICK_STRELOAD);
// printf("Test3 %d\n",++SYSTICK_STRELOAD);
#endif
} }