[PATCH] oprofile: fix build with musl

[Ross Burton <ross.burton@intel.com>]

Signed-off-by: Ross Burton <ross.burton@intel.com>
---
 meta/recipes-kernel/oprofile/oprofile.inc        |  2 ++
 meta/recipes-kernel/oprofile/oprofile/musl.patch | 46 ++++++++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 meta/recipes-kernel/oprofile/oprofile/musl.patch

diff --git a/meta/recipes-kernel/oprofile/oprofile.inc b/meta/recipes-kernel/oprofile/oprofile.inc
index 6ec56e7..faf0e53 100644
--- a/meta/recipes-kernel/oprofile/oprofile.inc
+++ b/meta/recipes-kernel/oprofile/oprofile.inc
@@ -25,6 +25,8 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/${BPN}/${BPN}-${PV}.tar.gz \
            file://run-ptest \
            file://root-home-dir.patch"
 
+SRC_URI_append_libc-musl = " file://musl.patch"
+
 inherit autotools pkgconfig ptest
 
 EXTRA_OECONF = "--with-kernel=${STAGING_DIR_HOST}${prefix} --without-x ac_cv_prog_XSLTPROC="
diff --git a/meta/recipes-kernel/oprofile/oprofile/musl.patch b/meta/recipes-kernel/oprofile/oprofile/musl.patch
new file mode 100644
index 0000000..39e5fdf
--- /dev/null
+++ b/meta/recipes-kernel/oprofile/oprofile/musl.patch
@@ -0,0 +1,46 @@
+Fix glibc-isms so that oprofile builds with musl.
+
+Patch taken from openwrt (https://github.com/openwrt-mirror/openwrt/blob/master/package/devel/oprofile/patches/100-musl.patch)
+
+Upstream-Status: Pending
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+
+--- a/pe_profiling/operf.cpp
++++ b/pe_profiling/operf.cpp
+@@ -857,11 +857,14 @@ static int __delete_old_previous_sample_
+                                 int tflag  __attribute__((unused)),
+                                 struct FTW *ftwbuf __attribute__((unused)))
+ {
++	int err;
++
+ 	if (remove(fpath)) {
++		err = errno;
+ 		perror("sample data removal error");
+-		return FTW_STOP;
++		return err;
+ 	} else {
+-		return FTW_CONTINUE;
++		return 0;
+ 	}
+ }
+ 
+@@ -896,7 +899,7 @@ static void convert_sample_data(void)
+ 		return;
+ 
+ 	if (!operf_options::append) {
+-                int flags = FTW_DEPTH | FTW_ACTIONRETVAL;
++                int flags = FTW_DEPTH;
+ 		errno = 0;
+ 		if (nftw(previous_sampledir.c_str(), __delete_old_previous_sample_data, 32, flags) !=0 &&
+ 				errno != ENOENT) {
+--- a/libop/op_events.c
++++ b/libop/op_events.c
+@@ -83,7 +83,7 @@ static int parse_hex(char const * str)
+ static u64 parse_long_hex(char const * str)
+ {
+ 	u64 value;
+-	if (sscanf(str, "%Lx", &value) != 1)
++	if (sscanf(str, "0x%llx", &value) != 1)
+ 		parse_error("expected long hexadecimal value");
+ 
+ 	fflush(stderr);
\ No newline at end of file
-- 
2.6.4