X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/fe8ab488e9161c46dd9885d58fc52996dc0249ff..c3c9b80d004dbbfdf763edeb97968c6997e3b45b:/tools/tests/perf_index/test_fault_helper.c

diff --git a/tools/tests/perf_index/test_fault_helper.c b/tools/tests/perf_index/test_fault_helper.c
index 94127979c..e3f8ee3ef 100644
--- a/tools/tests/perf_index/test_fault_helper.c
+++ b/tools/tests/perf_index/test_fault_helper.c
@@ -6,81 +6,88 @@
 #include <assert.h>
 #include <TargetConditionals.h>
 
+#if (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR)
+#define MEMSIZE (1L<<28)
+#else
 #define MEMSIZE (1L<<30)
+#endif
 
 static char* memblock;
 
-int test_fault_setup() {
-    char *ptr;
-    int pgsz = getpagesize();
-    int retval;
+int
+test_fault_setup()
+{
+	char *ptr;
+	int pgsz = getpagesize();
+	int retval;
 
-    memblock = (char *)mmap(NULL, MEMSIZE, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
-    VERIFY(memblock != MAP_FAILED, "mmap failed");
+	memblock = (char *)mmap(NULL, MEMSIZE, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
+	VERIFY(memblock != MAP_FAILED, "mmap failed");
 
-    /* make sure memory is paged */
-    for(ptr = memblock; ptr<memblock+MEMSIZE; ptr+= pgsz) {
-        *ptr = 1;
-    }
+	/* make sure memory is paged */
+	for (ptr = memblock; ptr < memblock + MEMSIZE; ptr += pgsz) {
+		*ptr = 1;
+	}
 
-    /* set to read only, then back to read write so it faults on first write */
-    retval = mprotect(memblock, MEMSIZE, PROT_READ);
-    VERIFY(retval == 0, "mprotect failed");
+	/* set to read only, then back to read write so it faults on first write */
+	retval = mprotect(memblock, MEMSIZE, PROT_READ);
+	VERIFY(retval == 0, "mprotect failed");
 
-    retval = mprotect(memblock, MEMSIZE, PROT_READ | PROT_WRITE);
-    VERIFY(retval == 0, "mprotect failed");
+	retval = mprotect(memblock, MEMSIZE, PROT_READ | PROT_WRITE);
+	VERIFY(retval == 0, "mprotect failed");
 
-    return PERFINDEX_SUCCESS;
+	return PERFINDEX_SUCCESS;
 }
 
-int test_fault_helper(int thread_id, int num_threads, long long length, testtype_t testtype) {
-    char *ptr;
-    int pgsz = getpagesize();
-    int retval;
-
-    long long num_pages = MEMSIZE / pgsz;
-    long long region_len = num_pages/num_threads;
-    long long region_start = region_len * thread_id; 
-    long long region_end;
-
-    if(thread_id < num_pages % num_threads) {
-        region_start += thread_id;
-        region_len++;
-    }
-    else {
-        region_start += num_pages % num_threads;
-    }
-
-    region_start *= pgsz;
-    region_len *= pgsz;
-    region_end = region_start + region_len;
-
-    long long left = length;
-
-    while(1) {
-        for(ptr = memblock+region_start; ptr<memblock+region_end; ptr+= pgsz) {
-            *ptr = 1;
-            left--;
-            if(left==0)
-                break;
-        }
-
-        if(left==0)
-            break;
-
-        if(testtype == TESTFAULT) {
-            retval = mprotect(memblock+region_start, region_len, PROT_READ) == 0;
-            VERIFY(retval == 0, "mprotect failed");
-            retval = mprotect(memblock+region_start, region_len, PROT_READ | PROT_WRITE) == 0;
-            VERIFY(retval == 0, "mprotect failed");
-        }
-
-        else if(testtype == TESTZFOD) {
-            retval = munmap(memblock+region_start, region_len) == 0;
-            VERIFY(retval == 0, "munmap failed");
-            ptr = mmap(memblock+region_start, region_len, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
-            VERIFY(ptr != 0, "mmap failed");
-        }
-    }
-    return PERFINDEX_SUCCESS;
+int
+test_fault_helper(int thread_id, int num_threads, long long length, testtype_t testtype)
+{
+	char *ptr;
+	int pgsz = getpagesize();
+	int retval;
+
+	long long num_pages = MEMSIZE / pgsz;
+	long long region_len = num_pages / num_threads;
+	long long region_start = region_len * thread_id;
+	long long region_end;
+
+	if (thread_id < num_pages % num_threads) {
+		region_start += thread_id;
+		region_len++;
+	} else {
+		region_start += num_pages % num_threads;
+	}
+
+	region_start *= pgsz;
+	region_len *= pgsz;
+	region_end = region_start + region_len;
+
+	long long left = length;
+
+	while (1) {
+		for (ptr = memblock + region_start; ptr < memblock + region_end; ptr += pgsz) {
+			*ptr = 1;
+			left--;
+			if (left == 0) {
+				break;
+			}
+		}
+
+		if (left == 0) {
+			break;
+		}
+
+		if (testtype == TESTFAULT) {
+			retval = mprotect(memblock + region_start, region_len, PROT_READ) == 0;
+			VERIFY(retval == 0, "mprotect failed");
+			retval = mprotect(memblock + region_start, region_len, PROT_READ | PROT_WRITE) == 0;
+			VERIFY(retval == 0, "mprotect failed");
+		} else if (testtype == TESTZFOD) {
+			retval = munmap(memblock + region_start, region_len) == 0;
+			VERIFY(retval == 0, "munmap failed");
+			ptr = mmap(memblock + region_start, region_len, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+			VERIFY(ptr != 0, "mmap failed");
+		}
+	}
+	return PERFINDEX_SUCCESS;
 }