diff options
Diffstat (limited to 'gnu/packages/patches/jemalloc-arm-address-bits.patch')
| -rw-r--r-- | gnu/packages/patches/jemalloc-arm-address-bits.patch | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/gnu/packages/patches/jemalloc-arm-address-bits.patch b/gnu/packages/patches/jemalloc-arm-address-bits.patch deleted file mode 100644 index f2ef24c25a..0000000000 --- a/gnu/packages/patches/jemalloc-arm-address-bits.patch +++ /dev/null @@ -1,39 +0,0 @@ -From 8cfc9dec37b312a2686f602bbcdd102ca07cca99 Mon Sep 17 00:00:00 2001 -From: David Goldblatt <davidgoldblatt@fb.com> -Date: Fri, 29 Sep 2017 13:54:08 -0700 -Subject: [PATCH] ARM: Don't extend bit LG_VADDR to compute high address bits. - -In userspace ARM on Linux, zero-ing the high bits is the correct way to do this. -This doesn't fix the fact that we currently set LG_VADDR to 48 on ARM, when in -fact larger virtual address sizes are coming soon. We'll cross that bridge when -we come to it. ---- - include/jemalloc/internal/rtree.h | 12 ++++++++++++ - 1 file changed, 12 insertions(+) - -diff --git a/include/jemalloc/internal/rtree.h b/include/jemalloc/internal/rtree.h -index b5d4db39..4563db23 100644 ---- a/include/jemalloc/internal/rtree.h -+++ b/include/jemalloc/internal/rtree.h -@@ -178,9 +178,21 @@ rtree_leaf_elm_bits_read(tsdn_t *tsdn, rtree_t *rtree, rtree_leaf_elm_t *elm, - - JEMALLOC_ALWAYS_INLINE extent_t * - rtree_leaf_elm_bits_extent_get(uintptr_t bits) { -+# ifdef __aarch64__ -+ /* -+ * aarch64 doesn't sign extend the highest virtual address bit to set -+ * the higher ones. Instead, the high bits gets zeroed. -+ */ -+ uintptr_t high_bit_mask = ((uintptr_t)1 << LG_VADDR) - 1; -+ /* Mask off the slab bit. */ -+ uintptr_t low_bit_mask = ~(uintptr_t)1; -+ uintptr_t mask = high_bit_mask & low_bit_mask; -+ return (extent_t *)(bits & mask); -+# else - /* Restore sign-extended high bits, mask slab bit. */ - return (extent_t *)((uintptr_t)((intptr_t)(bits << RTREE_NHIB) >> - RTREE_NHIB) & ~((uintptr_t)0x1)); -+# endif - } - - JEMALLOC_ALWAYS_INLINE szind_t |