summaryrefslogtreecommitdiffstats
path: root/tools/perf/trace/beauty/pkey_alloc.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/trace/beauty/pkey_alloc.c')
-rw-r--r--tools/perf/trace/beauty/pkey_alloc.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/pkey_alloc.c b/tools/perf/trace/beauty/pkey_alloc.c
new file mode 100644
index 000000000..2ba784a37
--- /dev/null
+++ b/tools/perf/trace/beauty/pkey_alloc.c
@@ -0,0 +1,50 @@
+/*
+ * trace/beauty/pkey_alloc.c
+ *
+ * Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+ *
+ * Released under the GPL v2. (and only v2, not any later version)
+ */
+
+#include "trace/beauty/beauty.h"
+#include <linux/kernel.h>
+#include <linux/log2.h>
+
+static size_t pkey_alloc__scnprintf_access_rights(int access_rights, char *bf, size_t size)
+{
+ int i, printed = 0;
+
+#include "trace/beauty/generated/pkey_alloc_access_rights_array.c"
+ static DEFINE_STRARRAY(pkey_alloc_access_rights);
+
+ if (access_rights == 0) {
+ const char *s = strarray__pkey_alloc_access_rights.entries[0];
+ if (s)
+ return scnprintf(bf, size, "%s", s);
+ return scnprintf(bf, size, "%d", 0);
+ }
+
+ for (i = 1; i < strarray__pkey_alloc_access_rights.nr_entries; ++i) {
+ int bit = 1 << (i - 1);
+
+ if (!(access_rights & bit))
+ continue;
+
+ if (printed != 0)
+ printed += scnprintf(bf + printed, size - printed, "|");
+
+ if (strarray__pkey_alloc_access_rights.entries[i] != NULL)
+ printed += scnprintf(bf + printed, size - printed, "%s", strarray__pkey_alloc_access_rights.entries[i]);
+ else
+ printed += scnprintf(bf + printed, size - printed, "0x%#", bit);
+ }
+
+ return printed;
+}
+
+size_t syscall_arg__scnprintf_pkey_alloc_access_rights(char *bf, size_t size, struct syscall_arg *arg)
+{
+ unsigned long cmd = arg->val;
+
+ return pkey_alloc__scnprintf_access_rights(cmd, bf, size);
+}