Merge branch 'uprobes-v7' of git://git.linaro.org/people/dave.long/linux into devel-stable

This patch series adds basic uprobes support to ARM. It is based on
patches developed earlier by Rabin Vincent. That approach of adding
hooks into the kprobes instruction parsing code was not well received.
This approach separates the ARM instruction parsing code in kprobes out
into a separate set of functions which can be used by both kprobes and
uprobes. Both kprobes and uprobes then provide their own semantic action
tables to process the results of the parsing.

1 files changed, 22 insertions, 0 deletions

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 896f27047ed6..6aa6fb6f7bd9 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -37,6 +37,10 @@
 # define MADV_UNMERGEABLE       13
 #endif
 
+#ifndef EFD_SEMAPHORE
+# define EFD_SEMAPHORE          1
+#endif
+
 struct tp_field {
         int offset;
         union {
@@ -279,6 +283,11 @@ static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
 
 #define SCA_STRARRAY syscall_arg__scnprintf_strarray
 
+#if defined(__i386__) || defined(__x86_64__)
+/*
+ * FIXME: Make this available to all arches as soon as the ioctl beautifier
+ *        gets rewritten to support all arches.
+ */
 static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size,
                                                  struct syscall_arg *arg)
 {
@@ -286,6 +295,7 @@ static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size,
 }
 
 #define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray
+#endif /* defined(__i386__) || defined(__x86_64__) */
 
 static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
                                         struct syscall_arg *arg);
@@ -839,6 +849,10 @@ static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscal
 
 #define SCA_SIGNUM syscall_arg__scnprintf_signum
 
+#if defined(__i386__) || defined(__x86_64__)
+/*
+ * FIXME: Make this available to all arches.
+ */
 #define TCGETS          0x5401
 
 static const char *tioctls[] = {
@@ -860,6 +874,7 @@ static const char *tioctls[] = {
 };
 
 static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401);
+#endif /* defined(__i386__) || defined(__x86_64__) */
 
 #define STRARRAY(arg, name, array) \
           .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \
@@ -941,9 +956,16 @@ static struct syscall_fmt {
         { .name     = "getrlimit",  .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
         { .name     = "ioctl",      .errmsg = true,
           .arg_scnprintf = { [0] = SCA_FD, /* fd */ 
+#if defined(__i386__) || defined(__x86_64__)
+/*
+ * FIXME: Make this available to all arches.
+ */
                              [1] = SCA_STRHEXARRAY, /* cmd */
                              [2] = SCA_HEX, /* arg */ },
           .arg_parm      = { [1] = &strarray__tioctls, /* cmd */ }, },
+#else
+                             [2] = SCA_HEX, /* arg */ }, },
+#endif
         { .name     = "kill",       .errmsg = true,
           .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
         { .name     = "linkat",     .errmsg = true,