jemalloc/jemalloc-3.0.0.atomic_h_ppc_32bit_operations.patch
Ingvar Hagelund 61dc0cf2d4 - New upstream release
- Updated no_pprof patch to match new release
- Updated s390 patch to match new relase
- Added make check
- Added new script jemalloc.sh
- Added a patch for atomic operations on epel5/ppc
2012-05-18 17:50:37 +02:00

257 lines
13 KiB
Diff

diff -Naur ../jemalloc-3.0.0.orig/COPYING.epel5-ppc ./COPYING.epel5-ppc
--- ../jemalloc-3.0.0.orig/COPYING.epel5-ppc 1970-01-01 01:00:00.000000000 +0100
+++ ./COPYING.epel5-ppc 2012-05-18 16:21:31.869392165 +0200
@@ -0,0 +1,215 @@
+When using this jemalloc package with EPEL5 on ppc, please note that a
+non-upstream patch has been added. This patch is covered by the Apache
+2.0 License, which states that this work is
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+
+For other platforms and operating systems, please ignore this file.
+
+The patch adds missing 32bit atomic operations that is missing from
+RHEL5 and its derivates on ppc/ppc64. The code was fetched from the
+Apache Portable Runtime project, http://apr.apache.org/
+
+
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diff -Naur ../jemalloc-3.0.0.orig/include/jemalloc/internal/atomic.h ./include/jemalloc/internal/atomic.h
--- ../jemalloc-3.0.0.orig/include/jemalloc/internal/atomic.h 2012-05-12 02:50:38.000000000 +0200
+++ ./include/jemalloc/internal/atomic.h 2012-05-18 15:55:34.457212405 +0200
@@ -242,6 +242,33 @@
return (__sync_sub_and_fetch(p, x));
}
+#elif (defined(__ppc__) || defined(__PPC__))
+// Code fetched from the boost library
+//
+JEMALLOC_INLINE uint32_t
+atomic_add_uint32(uint32_t *p, uint32_t x)
+{
+ uint32_t prev, temp;
+
+ asm volatile ("0:\n\t" // retry local label
+ "lwarx %0,0,%2\n\t" // load prev and reserve
+ "add %1,%0,%3\n\t" // temp = prev + x
+ "stwcx. %1,0,%2\n\t" // conditionally store
+ "bne- 0b" // start over if we lost
+ // the reservation
+ //XXX find a cleaner way to define the temp
+ //it's not an output
+ : "=&r" (prev), "=&r" (temp) // output, temp
+ : "b" (p), "r" (x) // inputs
+ : "memory", "cc"); // clobbered
+ return temp;
+}
+
+JEMALLOC_INLINE uint32_t
+atomic_sub_uint32(uint32_t *p, uint32_t x)
+{
+ return atomic_add_uint32(p, -x);
+}
#else
# error "Missing implementation for 32-bit atomic operations"
#endif