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authorTed Kremenek <kremenek@apple.com>2012-09-21 00:09:11 +0000
committerTed Kremenek <kremenek@apple.com>2012-09-21 00:09:11 +0000
commita43df9539644bf1c258e12710cd69d79b0b078cd (patch)
tree1c77ba3f0325a80410c1568dc939c1306e80491a /test/Analysis/unix-fns.c
parent445895a97ae3f1d7bad3480839d31ed3ebcc9c83 (diff)
Implement faux-body-synthesis of well-known functions in the static analyzer when
their implementations are unavailable. Start by simulating dispatch_sync(). This change is largely a bunch of plumbing around something very simple. We use AnalysisDeclContext to conjure up a fake function body (using the current ASTContext) when one does not exist. This is controlled under the analyzer-config option "faux-bodies", which is off by default. The plumbing in this patch is largely to pass the necessary machinery around. CallEvent needs the AnalysisDeclContextManager to get the function definition, as one may get conjured up lazily. BugReporter and PathDiagnosticLocation needed to be relaxed to handle invalid locations, as the conjured body has no real source locations. We do some primitive recovery in diagnostic generation to generate some reasonable locations (for arrows and events), but it can be improved. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164339 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/unix-fns.c')
-rw-r--r--test/Analysis/unix-fns.c1437
1 files changed, 1436 insertions, 1 deletions
diff --git a/test/Analysis/unix-fns.c b/test/Analysis/unix-fns.c
index f9c052e165..23d08d281a 100644
--- a/test/Analysis/unix-fns.c
+++ b/test/Analysis/unix-fns.c
@@ -1,4 +1,5 @@
-// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=unix.API,osx.API %s -analyzer-store=region -fblocks -verify
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,unix.API,osx.API %s -analyzer-store=region -analyzer-output=plist -analyzer-ipa=inlining -analyzer-eagerly-assume -analyzer-config faux-bodies=true -fblocks -verify -o %t.plist
+// RUN: FileCheck --input-file=%t.plist %s
struct _opaque_pthread_once_t {
long __sig;
@@ -15,9 +16,27 @@ void *realloc(void *, size_t);
void *alloca(size_t);
void *valloc(size_t);
+typedef union {
+ struct _os_object_s *_os_obj;
+ struct dispatch_object_s *_do;
+ struct dispatch_continuation_s *_dc;
+ struct dispatch_queue_s *_dq;
+ struct dispatch_queue_attr_s *_dqa;
+ struct dispatch_group_s *_dg;
+ struct dispatch_source_s *_ds;
+ struct dispatch_source_attr_s *_dsa;
+ struct dispatch_semaphore_s *_dsema;
+ struct dispatch_data_s *_ddata;
+ struct dispatch_io_s *_dchannel;
+ struct dispatch_operation_s *_doperation;
+ struct dispatch_disk_s *_ddisk;
+} dispatch_object_t __attribute__((__transparent_union__));
+
typedef void (^dispatch_block_t)(void);
typedef long dispatch_once_t;
+typedef struct dispatch_queue_s *dispatch_queue_t;
void dispatch_once(dispatch_once_t *predicate, dispatch_block_t block);
+void dispatch_sync(dispatch_queue_t queue, dispatch_block_t block);
#ifndef O_CREAT
#define O_CREAT 0x0200
@@ -151,3 +170,1419 @@ void test_dispatch_once_in_macro() {
dispatch_once_t pred = 0;
dispatch_once(&pred, ^(){}); // expected-warning {{Call to 'dispatch_once' uses the local variable 'pred' for the predicate value}}
}
+
+// Test inlining of dispatch_sync.
+void test_dispatch_sync(dispatch_queue_t queue, int *q) {
+ int *p = 0;
+ dispatch_sync(queue, ^(void){
+ if (q) {
+ *p = 1; // expected-warning {{null pointer}}
+ }
+ });
+}
+
+// CHECK: <key>diagnostics</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>path</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>49</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>49</integer>
+// CHECK-NEXT: <key>col</key><integer>5</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>7</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>7</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>7</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>7</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>9</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>0</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Assuming &apos;fd&apos; is not equal to 0</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Assuming &apos;fd&apos; is not equal to 0</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>7</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>51</integer>
+// CHECK-NEXT: <key>col</key><integer>7</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>8</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>11</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>8</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>19</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>25</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>0</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Call to &apos;open&apos; requires a third argument when the &apos;O_CREAT&apos; flag is set</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Call to &apos;open&apos; requires a third argument when the &apos;O_CREAT&apos; flag is set</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>description</key><string>Call to &apos;open&apos; requires a third argument when the &apos;O_CREAT&apos; flag is set</string>
+// CHECK-NEXT: <key>category</key><string>Unix API</string>
+// CHECK-NEXT: <key>type</key><string>Improper use of &apos;open&apos;</string>
+// CHECK-NEXT: <key>issue_context_kind</key><string>function</string>
+// CHECK-NEXT: <key>issue_context</key><string>test_open</string>
+// CHECK-NEXT: <key>issue_hash</key><integer>6</integer>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>54</integer>
+// CHECK-NEXT: <key>col</key><integer>8</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>path</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>60</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>60</integer>
+// CHECK-NEXT: <key>col</key><integer>17</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>8</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>9</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>8</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>9</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>52</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>64</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>52</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>66</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>72</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>0</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Call to &apos;dispatch_once&apos; uses the local variable &apos;pred&apos; for the predicate value. Using such transient memory for the predicate is potentially dangerous. Perhaps you intended to declare the variable as &apos;static&apos;?</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Call to &apos;dispatch_once&apos; uses the local variable &apos;pred&apos; for the predicate value. Using such transient memory for the predicate is potentially dangerous. Perhaps you intended to declare the variable as &apos;static&apos;?</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>description</key><string>Call to &apos;dispatch_once&apos; uses the local variable &apos;pred&apos; for the predicate value. Using such transient memory for the predicate is potentially dangerous. Perhaps you intended to declare the variable as &apos;static&apos;?</string>
+// CHECK-NEXT: <key>category</key><string>Mac OS X API</string>
+// CHECK-NEXT: <key>type</key><string>Improper use of &apos;dispatch_once&apos;</string>
+// CHECK-NEXT: <key>issue_context_kind</key><string>function</string>
+// CHECK-NEXT: <key>issue_context</key><string>test_dispatch_once</string>
+// CHECK-NEXT: <key>issue_hash</key><integer>2</integer>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>61</integer>
+// CHECK-NEXT: <key>col</key><integer>52</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>path</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>71</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>71</integer>
+// CHECK-NEXT: <key>col</key><integer>16</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>72</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>72</integer>
+// CHECK-NEXT: <key>col</key><integer>14</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>72</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>72</integer>
+// CHECK-NEXT: <key>col</key><integer>16</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>72</integer>
+// CHECK-NEXT: <key>col</key><integer>20</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>0</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Call to &apos;pthread_once&apos; uses the local variable &apos;pred&apos; for the &quot;control&quot; value. Using such transient memory for the control value is potentially dangerous. Perhaps you intended to declare the variable as &apos;static&apos;?</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Call to &apos;pthread_once&apos; uses the local variable &apos;pred&apos; for the &quot;control&quot; value. Using such transient memory for the control value is potentially dangerous. Perhaps you intended to declare the variable as &apos;static&apos;?</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>description</key><string>Call to &apos;pthread_once&apos; uses the local variable &apos;pred&apos; for the &quot;control&quot; value. Using such transient memory for the control value is potentially dangerous. Perhaps you intended to declare the variable as &apos;static&apos;?</string>
+// CHECK-NEXT: <key>category</key><string>Unix API</string>
+// CHECK-NEXT: <key>type</key><string>Improper use of &apos;pthread_once&apos;</string>
+// CHECK-NEXT: <key>issue_context_kind</key><string>function</string>
+// CHECK-NEXT: <key>issue_context</key><string>test_pthread_once</string>
+// CHECK-NEXT: <key>issue_hash</key><integer>2</integer>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>72</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>path</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>81</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>81</integer>
+// CHECK-NEXT: <key>col</key><integer>6</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>81</integer>
+// CHECK-NEXT: <key>col</key><integer>15</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>81</integer>
+// CHECK-NEXT: <key>col</key><integer>20</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>81</integer>
+// CHECK-NEXT: <key>col</key><integer>15</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>81</integer>
+// CHECK-NEXT: <key>col</key><integer>22</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>81</integer>
+// CHECK-NEXT: <key>col</key><integer>22</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>0</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Call to &apos;malloc&apos; has an allocation size of 0 bytes</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Call to &apos;malloc&apos; has an allocation size of 0 bytes</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>description</key><string>Call to &apos;malloc&apos; has an allocation size of 0 bytes</string>
+// CHECK-NEXT: <key>category</key><string>Unix API</string>
+// CHECK-NEXT: <key>type</key><string>Undefined allocation of 0 bytes (CERT MEM04-C; CWE-131)</string>
+// CHECK-NEXT: <key>issue_context_kind</key><string>function</string>
+// CHECK-NEXT: <key>issue_context</key><string>pr2899</string>
+// CHECK-NEXT: <key>issue_hash</key><integer>1</integer>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>81</integer>
+// CHECK-NEXT: <key>col</key><integer>15</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>path</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>93</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>93</integer>
+// CHECK-NEXT: <key>col</key><integer>6</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>93</integer>
+// CHECK-NEXT: <key>col</key><integer>15</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>93</integer>
+// CHECK-NEXT: <key>col</key><integer>20</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>93</integer>
+// CHECK-NEXT: <key>col</key><integer>15</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>93</integer>
+// CHECK-NEXT: <key>col</key><integer>22</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>93</integer>
+// CHECK-NEXT: <key>col</key><integer>22</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>0</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Call to &apos;calloc&apos; has an allocation size of 0 bytes</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Call to &apos;calloc&apos; has an allocation size of 0 bytes</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>description</key><string>Call to &apos;calloc&apos; has an allocation size of 0 bytes</string>
+// CHECK-NEXT: <key>category</key><string>Unix API</string>
+// CHECK-NEXT: <key>type</key><string>Undefined allocation of 0 bytes (CERT MEM04-C; CWE-131)</string>
+// CHECK-NEXT: <key>issue_context_kind</key><string>function</string>
+// CHECK-NEXT: <key>issue_context</key><string>test_calloc</string>
+// CHECK-NEXT: <key>issue_hash</key><integer>1</integer>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>93</integer>
+// CHECK-NEXT: <key>col</key><integer>15</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>path</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>99</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>99</integer>
+// CHECK-NEXT: <key>col</key><integer>6</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>99</integer>
+// CHECK-NEXT: <key>col</key><integer>15</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>99</integer>
+// CHECK-NEXT: <key>col</key><integer>20</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>