Add mmap casts in linux-btrace.c

gdb/ChangeLog:

	* linux-btrace.c (linux_enable_pt): Add cast to mmap return.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 4f506e5..a06f568 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2015-10-23  Simon Marchi  <simon.marchi@polymtl.ca>
+
+       * linux-btrace.c (linux_enable_pt): Add cast to mmap return.
+
 2015-10-23  Simon Marchi  <simon.marchi@ericsson.com>
 
        * observer.h (observer_${event}_notification_stub): Add cast.

diff --git a/gdb/nat/linux-btrace.c b/gdb/nat/linux-btrace.c
index 3173146..1c3cb40 100644 (file)
--- a/gdb/nat/linux-btrace.c
+++ b/gdb/nat/linux-btrace.c
@@ -820,8 +820,9 @@ linux_enable_pt (ptid_t ptid, const struct btrace_config_pt *conf)
     goto err;
 
   /* Allocate the configuration page. */
-  header = mmap (NULL, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
-                pt->file, 0);
+  header = ((struct perf_event_mmap_page *)
+           mmap (NULL, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+                 pt->file, 0));
   if (header == MAP_FAILED)
     goto err_file;
 
@@ -862,8 +863,9 @@ linux_enable_pt (ptid_t ptid, const struct btrace_config_pt *conf)
       header->aux_size = data_size;
       length = size;
 
-      pt->pt.mem = mmap (NULL, length, PROT_READ, MAP_SHARED, pt->file,
-                        header->aux_offset);
+      pt->pt.mem = ((const uint8_t *)
+                   mmap (NULL, length, PROT_READ, MAP_SHARED, pt->file,
+                         header->aux_offset));
       if (pt->pt.mem != MAP_FAILED)
        break;
     }