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authorKhem Raj <raj.khem@gmail.com>2015-08-23 18:40:43 -0700
committerRichard Purdie <richard.purdie@linuxfoundation.org>2015-08-30 12:34:15 +0100
commit5a514163bc805e7f59405c0074cb577cf72b9f39 (patch)
treeccc21f2af7004b406971fb7d9c3276bc47daeea5 /meta/recipes-support
parente95365400ae1ffb6b650723cfb2c6a67913c740c (diff)
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liburcu: Fix atomic function parameter types in calls
__sync_val_compare_and_swap family specifically asks for proper types of pointer type parameters, gcc does not notice it but clang does and sends out errors calling it out. (From OE-Core rev: 2767b6be71ca809f4a39ba9b8707b311b8334434) Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-support')
-rw-r--r--meta/recipes-support/liburcu/liburcu/0001-uatomic-Specify-complete-types-for-atomic-function-c.patch158
-rw-r--r--meta/recipes-support/liburcu/liburcu_0.8.7.bb1
2 files changed, 159 insertions, 0 deletions
diff --git a/meta/recipes-support/liburcu/liburcu/0001-uatomic-Specify-complete-types-for-atomic-function-c.patch b/meta/recipes-support/liburcu/liburcu/0001-uatomic-Specify-complete-types-for-atomic-function-c.patch
new file mode 100644
index 0000000000..5ad0bbd159
--- /dev/null
+++ b/meta/recipes-support/liburcu/liburcu/0001-uatomic-Specify-complete-types-for-atomic-function-c.patch
@@ -0,0 +1,158 @@
+From 6af790818d074c103c4797f1ce764896f183e028 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sat, 22 Aug 2015 21:35:03 -0700
+Subject: [PATCH] uatomic: Specify complete types for atomic function calls
+
+This was unearthed by clang compiler where it complained about parameter
+mismatch, gcc doesnt notice this
+
+urcu/uatomic/generic.h:190:10: error: address argument to atomic builtin
+must be a pointer to integer or pointer ('void *' invalid)
+ return __sync_add_and_fetch_4(addr, val);
+
+Fixed all instances thusly
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Submitted
+
+ urcu/uatomic/generic.h | 40 ++++++++++++++++++++--------------------
+ 1 file changed, 20 insertions(+), 20 deletions(-)
+
+diff --git a/urcu/uatomic/generic.h b/urcu/uatomic/generic.h
+index 37f59cc..0046ffd 100644
+--- a/urcu/uatomic/generic.h
++++ b/urcu/uatomic/generic.h
+@@ -65,17 +65,17 @@ unsigned long _uatomic_cmpxchg(void *addr, unsigned long old,
+ switch (len) {
+ #ifdef UATOMIC_HAS_ATOMIC_BYTE
+ case 1:
+- return __sync_val_compare_and_swap_1(addr, old, _new);
++ return __sync_val_compare_and_swap_1((unsigned char *)addr, old, _new);
+ #endif
+ #ifdef UATOMIC_HAS_ATOMIC_SHORT
+ case 2:
+- return __sync_val_compare_and_swap_2(addr, old, _new);
++ return __sync_val_compare_and_swap_2((unsigned short int *)addr, old, _new);
+ #endif
+ case 4:
+- return __sync_val_compare_and_swap_4(addr, old, _new);
++ return __sync_val_compare_and_swap_4((unsigned int *)addr, old, _new);
+ #if (CAA_BITS_PER_LONG == 64)
+ case 8:
+- return __sync_val_compare_and_swap_8(addr, old, _new);
++ return __sync_val_compare_and_swap_8((unsigned long *)addr, old, _new);
+ #endif
+ }
+ _uatomic_link_error();
+@@ -100,20 +100,20 @@ void _uatomic_and(void *addr, unsigned long val,
+ switch (len) {
+ #ifdef UATOMIC_HAS_ATOMIC_BYTE
+ case 1:
+- __sync_and_and_fetch_1(addr, val);
++ __sync_and_and_fetch_1((unsigned char *)addr, val);
+ return;
+ #endif
+ #ifdef UATOMIC_HAS_ATOMIC_SHORT
+ case 2:
+- __sync_and_and_fetch_2(addr, val);
++ __sync_and_and_fetch_2((unsigned short int *)addr, val);
+ return;
+ #endif
+ case 4:
+- __sync_and_and_fetch_4(addr, val);
++ __sync_and_and_fetch_4((unsigned int *)addr, val);
+ return;
+ #if (CAA_BITS_PER_LONG == 64)
+ case 8:
+- __sync_and_and_fetch_8(addr, val);
++ __sync_and_and_fetch_8((unsigned long *)addr, val);
+ return;
+ #endif
+ }
+@@ -139,20 +139,20 @@ void _uatomic_or(void *addr, unsigned long val,
+ switch (len) {
+ #ifdef UATOMIC_HAS_ATOMIC_BYTE
+ case 1:
+- __sync_or_and_fetch_1(addr, val);
++ __sync_or_and_fetch_1((unsigned char *)addr, val);
+ return;
+ #endif
+ #ifdef UATOMIC_HAS_ATOMIC_SHORT
+ case 2:
+- __sync_or_and_fetch_2(addr, val);
++ __sync_or_and_fetch_2((unsigned short int *)addr, val);
+ return;
+ #endif
+ case 4:
+- __sync_or_and_fetch_4(addr, val);
++ __sync_or_and_fetch_4((unsigned int *)addr, val);
+ return;
+ #if (CAA_BITS_PER_LONG == 64)
+ case 8:
+- __sync_or_and_fetch_8(addr, val);
++ __sync_or_and_fetch_8((unsigned long *)addr, val);
+ return;
+ #endif
+ }
+@@ -180,17 +180,17 @@ unsigned long _uatomic_add_return(void *addr, unsigned long val,
+ switch (len) {
+ #ifdef UATOMIC_HAS_ATOMIC_BYTE
+ case 1:
+- return __sync_add_and_fetch_1(addr, val);
++ return __sync_add_and_fetch_1((unsigned char *)addr, val);
+ #endif
+ #ifdef UATOMIC_HAS_ATOMIC_SHORT
+ case 2:
+- return __sync_add_and_fetch_2(addr, val);
++ return __sync_add_and_fetch_2((unsigned short int *)addr, val);
+ #endif
+ case 4:
+- return __sync_add_and_fetch_4(addr, val);
++ return __sync_add_and_fetch_4((unsigned int *)addr, val);
+ #if (CAA_BITS_PER_LONG == 64)
+ case 8:
+- return __sync_add_and_fetch_8(addr, val);
++ return __sync_add_and_fetch_8((unsigned long *)addr, val);
+ #endif
+ }
+ _uatomic_link_error();
+@@ -218,7 +218,7 @@ unsigned long _uatomic_exchange(void *addr, unsigned long val, int len)
+
+ do {
+ old = uatomic_read((unsigned char *)addr);
+- } while (!__sync_bool_compare_and_swap_1(addr, old, val));
++ } while (!__sync_bool_compare_and_swap_1((unsigned char *)addr, old, val));
+
+ return old;
+ }
+@@ -230,7 +230,7 @@ unsigned long _uatomic_exchange(void *addr, unsigned long val, int len)
+
+ do {
+ old = uatomic_read((unsigned short *)addr);
+- } while (!__sync_bool_compare_and_swap_2(addr, old, val));
++ } while (!__sync_bool_compare_and_swap_2((unsigned short int *)addr, old, val));
+
+ return old;
+ }
+@@ -241,7 +241,7 @@ unsigned long _uatomic_exchange(void *addr, unsigned long val, int len)
+
+ do {
+ old = uatomic_read((unsigned int *)addr);
+- } while (!__sync_bool_compare_and_swap_4(addr, old, val));
++ } while (!__sync_bool_compare_and_swap_4((unsigned int *)addr, old, val));
+
+ return old;
+ }
+@@ -252,7 +252,7 @@ unsigned long _uatomic_exchange(void *addr, unsigned long val, int len)
+
+ do {
+ old = uatomic_read((unsigned long *)addr);
+- } while (!__sync_bool_compare_and_swap_8(addr, old, val));
++ } while (!__sync_bool_compare_and_swap_8((unsigned long *)addr, old, val));
+
+ return old;
+ }
+--
+2.1.4
+
diff --git a/meta/recipes-support/liburcu/liburcu_0.8.7.bb b/meta/recipes-support/liburcu/liburcu_0.8.7.bb
index 71cb149d95..a7f4f51b5b 100644
--- a/meta/recipes-support/liburcu/liburcu_0.8.7.bb
+++ b/meta/recipes-support/liburcu/liburcu_0.8.7.bb
@@ -10,6 +10,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=0f060c30a27922ce9c0d557a639b4fa3 \
SRC_URI = "http://lttng.org/files/urcu/userspace-rcu-${PV}.tar.bz2 \
file://Revert-Blacklist-ARM-gcc-4.8.0-4.8.1-4.8.2.patch \
file://aarch64.patch \
+ file://0001-uatomic-Specify-complete-types-for-atomic-function-c.patch \
"
SRC_URI[md5sum] = "7a6ee17871d31226db3f618e28351d22"