1 files changed, 70 insertions, 0 deletions
diff --git a/mail/thunderbird/files/patch-z-bug762445 b/mail/thunderbird/files/patch-z-bug762445
new file mode 100644
index 000000000000..648492dfa700
--- /dev/null
+++ b/mail/thunderbird/files/patch-z-bug762445
@@ -0,0 +1,70 @@
+commit b44dc8e
+Author: Jan Beich <jbeich@tormail.org>
+Date:   Fri Oct 12 18:49:59 2012 +0000
+
+    Bug 762445 - Add jemalloc3 glue for heap-committed, heap-dirty in about:memory.
+---
+ memory/build/mozjemalloc_compat.c | 34 ++++++++++++++++++++++++++++------
+ 1 file changed, 28 insertions(+), 6 deletions(-)
+
+diff --git memory/build/mozjemalloc_compat.c memory/build/mozjemalloc_compat.c
+index 94ad96e..7adfef5 100644
+--- mozilla/memory/build/mozjemalloc_compat.c
++++ mozilla/memory/build/mozjemalloc_compat.c
+@@ -11,15 +11,50 @@
+ #define wrap(a) je_ ## a
+ #endif
+ 
+-extern MOZ_IMPORT_API(int)
++/*
++ *  CTL_* macros are from memory/jemalloc/src/src/stats.c with changes:
++ *  - drop `t' argument to avoid redundancy in calculating type size
++ *  - require `i' argument for arena number explicitly
++ */
++
++#define	CTL_GET(n, v) do {						\
++	size_t sz = sizeof(v);						\
++	wrap(mallctl)(n, &v, &sz, NULL, 0);				\
++} while (0)
++
++#define	CTL_I_GET(n, v, i) do {						\
++	size_t mib[6];							\
++	size_t miblen = sizeof(mib) / sizeof(mib[0]);			\
++	size_t sz = sizeof(v);						\
++	wrap(mallctlnametomib)(n, mib, &miblen);			\
++	mib[2] = i;							\
++	wrap(mallctlbymib)(mib, miblen, &v, &sz, NULL, 0);		\
++} while (0)
++
++MOZ_IMPORT_API(int)
+ wrap(mallctl)(const char*, void*, size_t*, void*, size_t);
++MOZ_IMPORT_API(int)
++wrap(mallctlnametomib)(const char *name, size_t *mibp, size_t *miblenp);
++MOZ_IMPORT_API(int)
++wrap(mallctlbymib)(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen);
+ 
+ MOZ_EXPORT_API(void)
+ jemalloc_stats(jemalloc_stats_t *stats)
+ {
+-  size_t size = sizeof(stats->mapped);
+-  wrap(mallctl)("stats.mapped", &stats->mapped, &size, NULL, 0);
+-  wrap(mallctl)("stats.allocated", &stats->allocated, &size, NULL, 0);
+-  stats->committed = -1;
+-  stats->dirty = -1;
++  unsigned narenas;
++  size_t active, allocated, mapped, page, pdirty;
++
++  CTL_GET("arenas.narenas", narenas);
++  CTL_GET("arenas.page", page);
++  CTL_GET("stats.active", active);
++  CTL_GET("stats.allocated", allocated);
++  CTL_GET("stats.mapped", mapped);
++
++  /* get the summation for all arenas, i == narenas */
++  CTL_I_GET("stats.arenas.0.pdirty", pdirty, narenas);
++
++  stats->allocated = allocated;
++  stats->mapped = mapped;
++  stats->dirty = pdirty * page;
++  stats->committed = active + stats->dirty;
+ }