mzyy94

(lldb) settings set target.run-args 2
(lldb) run
There is a running process, kill it and restart?: [Y/n]
Process 44396 launched: '/Volumes/RamDisk/a.out' (x86_64)
Process 44396 stopped
* thread #1: tid = 0x65861, 0x0000000100000f66 a.out`main(argc=2, argv=0x00007fff5fbff838) + 150 at bus_error.c:15, queue = 'com.apple.main-thread, stop reason = EXC_BAD_ACCESS (code=1, address=0x7fff5fc87000)
    frame #0: 0x0000000100000f66 a.out`main(argc=2, argv=0x00007fff5fbff838) + 150 at bus_error.c:15
   12  					s[i] = '\0';
   13  					break;
   14  				case '2':

mzyy94

(lldb) settings set target.run-args 0
(lldb) run
There is a running process, kill it and restart?: [Y/n]
Process 31576 launched: '/Volumes/RamDisk/a.out' (x86_64)
Process 31576 stopped
* thread #1: tid = 0x61fc2, 0x0000000100000f43 a.out`main(argc=2, argv=0x00007fff5fbff838) + 115 at bus_error.c:9, queue = 'com.apple.main-thread, stop reason = EXC_BAD_ACCESS (code=2, address=0x100005000)
    frame #0: 0x0000000100000f43 a.out`main(argc=2, argv=0x00007fff5fbff838) + 115 at bus_error.c:9
   6   		for(int i = 0; ; i++){
   7   			switch(mode) {
   8   				case '0':

mzyy94

Last login: Wed Dec 18 12:10:55 on ttys006
mzyy94:~ mzyy94$ cd /Volumes/RamDisk/
mzyy94:RamDisk mzyy94$ gcc -g bus_error.c
mzyy94:RamDisk mzyy94$ lldb -- a.out
Current executable set to 'a.out' (x86_64).
(lldb) settings set target.run-args 0
(lldb) run
Process 67334 launched: '/Volumes/RamDisk/a.out' (x86_64)
Process 67334 stopped
* thread #1: tid = 0x50c5f, 0x0000000100000f43 a.out`main(argc=2, argv=0x00007fff5fbff838) + 115 at bus_error.c:9, queue = 'com.apple.main-thread, stop reason = EXC_BAD_ACCESS (code=2, address=0x100005000)

mzyy94

Last login: Wed Dec 18 11:19:03 on ttys001
mzyy94:~ mzyy94$ cd /Volumes/RamDisk/
mzyy94:RamDisk mzyy94$ gcc bus_error_test.c
mzyy94:RamDisk mzyy94$ ./a.out
ARRAY
mode: [auto/set]
Segmentation fault: 11
mode: [auto/read]
Segmentation fault: 11
mode: [const/read]

mzyy94

int main(int argc, char* argv[]) {
	unsigned char c[1];
	static unsigned char s[1];
	char mode = argc == 2 ? argv[1][0] : '\0';

	for(int i = 0; ; i++){
		switch(mode) {
			case '0':
				c[0] = s[i];
				break;

mzyy94

#include <stdio.h>
#include <stdlib.h>
#include <setjmp.h>

int mode = 0;
jmp_buf jb;
static const char* label[] = {"auto/set", "auto/read",
	"const/read", "static/set", "static/read",
   	"register/set", "register/read", "volatile/set",
   	"volatile/read", "normal/set", "normal/read"};