sigsegv-tests: make more things static

* tests/test-sigsegv-catch-segv1.c:
* tests/test-sigsegv-catch-stackoverflow1.c:
* tests/test-sigsegv-catch-stackoverflow2.c:
Declare some functions and variables static, to pacify GCC when
warning about external functions missing declarations.

3 files changed, 19 insertions, 19 deletions

diff --git a/tests/test-sigsegv-catch-segv1.c b/tests/test-sigsegv-catch-segv1.c
index 68f65c55c6..4f6989efe9 100644
--- a/tests/test-sigsegv-catch-segv1.c
+++ b/tests/test-sigsegv-catch-segv1.c
@@ -40,7 +40,7 @@ uintptr_t page;
 
 volatile int handler_called = 0;
 
-int
+static int
 handler (void *fault_address, int serious)
 {
   handler_called++;
@@ -54,7 +54,7 @@ handler (void *fault_address, int serious)
   return 0;
 }
 
-void
+static void
 crasher (uintptr_t p)
 {
   *(volatile int *) (p + 0x678) = 42;
diff --git a/tests/test-sigsegv-catch-stackoverflow1.c b/tests/test-sigsegv-catch-stackoverflow1.c
index 2f1e6f4879..3c229975b3 100644
--- a/tests/test-sigsegv-catch-stackoverflow1.c
+++ b/tests/test-sigsegv-catch-stackoverflow1.c
@@ -44,13 +44,13 @@
 # endif
 # include "altstack-util.h"
 
-jmp_buf mainloop;
-sigset_t mainsigset;
+static jmp_buf mainloop;
+static sigset_t mainsigset;
 
-volatile int pass = 0;
+static volatile int pass = 0;
 
-volatile char *stack_lower_bound;
-volatile char *stack_upper_bound;
+static volatile char *stack_lower_bound;
+static volatile char *stack_upper_bound;
 
 static void
 stackoverflow_handler_continuation (void *arg1, void *arg2, void *arg3)
@@ -59,7 +59,7 @@ stackoverflow_handler_continuation (void *arg1, void *arg2, void *arg3)
   longjmp (mainloop, arg);
 }
 
-void
+static void
 stackoverflow_handler (int emergency, stackoverflow_context_t scp)
 {
   char dummy;
@@ -73,7 +73,7 @@ stackoverflow_handler (int emergency, stackoverflow_context_t scp)
                          (void *) (long) (emergency ? -1 : pass), NULL, NULL);
 }
 
-volatile int *
+static volatile int *
 recurse_1 (int n, volatile int *p)
 {
   if (n < INT_MAX)
@@ -81,7 +81,7 @@ recurse_1 (int n, volatile int *p)
   return p;
 }
 
-int
+static int
 recurse (volatile int n)
 {
   return *recurse_1 (n, &n);
diff --git a/tests/test-sigsegv-catch-stackoverflow2.c b/tests/test-sigsegv-catch-stackoverflow2.c
index 5914e32504..ea79b96e7f 100644
--- a/tests/test-sigsegv-catch-stackoverflow2.c
+++ b/tests/test-sigsegv-catch-stackoverflow2.c
@@ -46,12 +46,12 @@
 # endif
 # include "altstack-util.h"
 
-jmp_buf mainloop;
-sigset_t mainsigset;
+static jmp_buf mainloop;
+static sigset_t mainsigset;
 
-volatile int pass = 0;
-uintptr_t page;
-volatile int *null_pointer_to_volatile_int /* = NULL */;
+static volatile int pass = 0;
+static uintptr_t page;
+static volatile int *null_pointer_to_volatile_int /* = NULL */;
 
 static void
 stackoverflow_handler_continuation (void *arg1, void *arg2, void *arg3)
@@ -60,7 +60,7 @@ stackoverflow_handler_continuation (void *arg1, void *arg2, void *arg3)
   longjmp (mainloop, arg);
 }
 
-void
+static void
 stackoverflow_handler (int emergency, stackoverflow_context_t scp)
 {
   pass++;
@@ -76,7 +76,7 @@ stackoverflow_handler (int emergency, stackoverflow_context_t scp)
                          (void *) (long) (emergency ? -1 : pass), NULL, NULL);
 }
 
-int
+static int
 sigsegv_handler (void *address, int emergency)
 {
   /* This test is necessary to distinguish stack overflow and SIGSEGV.  */
@@ -96,7 +96,7 @@ sigsegv_handler (void *address, int emergency)
                                 (void *) (long) pass, NULL, NULL);
 }
 
-volatile int *
+static volatile int *
 recurse_1 (int n, volatile int *p)
 {
   if (n < INT_MAX)
@@ -104,7 +104,7 @@ recurse_1 (int n, volatile int *p)
   return p;
 }
 
-int
+static int
 recurse (volatile int n)
 {
   return *recurse_1 (n, &n);