libhugetlbfs: Fix build on musl

needs more runtime testing

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-benchmark/libhugetlbfs/files/0001-include-stddef.h-for-ptrdiff_t.patch

@@ -0,0 +1,25 @@
+From d3c2187716a0a1f9359a869ca383c129603554d9 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 21 Jun 2018 19:25:57 -0700
+Subject: [PATCH 1/6] include stddef.h for ptrdiff_t
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ morecore.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/morecore.c b/morecore.c
+index 62ad252..c5981d2 100644
+--- a/morecore.c
++++ b/morecore.c
+@@ -19,6 +19,7 @@
+ 
+ #define _GNU_SOURCE
+ 
++#include <stddef.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <malloc.h>
+-- 
+2.17.1
+

meta-oe/recipes-benchmark/libhugetlbfs/files/0002-Mark-glibc-specific-code-so.patch

@@ -0,0 +1,39 @@
+From b72bf6a81fa879f32a074fe53776fc8291c83b6f Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 21 Jun 2018 19:32:59 -0700
+Subject: [PATCH 2/6] Mark glibc specific code so
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ morecore.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/morecore.c b/morecore.c
+index c5981d2..ec9fafa 100644
+--- a/morecore.c
++++ b/morecore.c
+@@ -347,6 +347,7 @@ void hugetlbfs_setup_morecore(void)
+ 
+ 	INFO("setup_morecore(): heapaddr = 0x%lx\n", heapaddr);
+ 
++#ifdef __GLIBC__
+ 	heaptop = heapbase = (void *)heapaddr;
+ 	if (__hugetlb_opts.thp_morecore)
+ 		__morecore = &thp_morecore;
+@@ -354,7 +355,6 @@ void hugetlbfs_setup_morecore(void)
+ 		__morecore = &hugetlbfs_morecore;
+ 
+ 	/* Set some allocator options more appropriate for hugepages */
+-
+ 	if (__hugetlb_opts.shrink_ok)
+ 		mallopt(M_TRIM_THRESHOLD, hpage_size / 2);
+ 	else
+@@ -364,4 +364,5 @@ void hugetlbfs_setup_morecore(void)
+ 	 * This doesn't appear to prohibit malloc() from falling back
+ 	 * to mmap() if we run out of hugepages. */
+ 	mallopt(M_MMAP_MAX, 0);
++#endif
+ }
+-- 
+2.17.1
+

meta-oe/recipes-benchmark/libhugetlbfs/files/0003-alloc.c-Avoid-sysconf-_SC_LEVEL2_CACHE_LINESIZE-on-l.patch

@@ -0,0 +1,49 @@
+From 3d6ab5ea8e23f96ee6fdd915e05acd9a751dd876 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 21 Jun 2018 19:44:26 -0700
+Subject: [PATCH 3/6] alloc.c: Avoid sysconf(_SC_LEVEL2_CACHE_LINESIZE) on
+ linux
+
+musl does not have it
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ alloc.c | 15 ++++++++++++++-
+ 1 file changed, 14 insertions(+), 1 deletion(-)
+
+diff --git a/alloc.c b/alloc.c
+index bce9464..cf7eb40 100644
+--- a/alloc.c
++++ b/alloc.c
+@@ -245,6 +245,19 @@ void free_huge_pages(void *ptr)
+ 	__free_huge_pages(ptr, 1);
+ }
+ 
++static size_t get_cacheline_size() {
++#if defined(__linux__)
++	FILE * fp = fopen("/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size", "r");
++	unsigned int line_size = 0;
++	if (fp) {
++		fscanf(fp, "%d", &line_size);
++		fclose(fp);
++	}
++	return line_size;
++#else
++	return sysconf(_SC_LEVEL2_CACHE_LINESIZE);
++#endif
++}
+ /*
+  * Offset the buffer using bytes wasted due to alignment to avoid using the
+  * same cache lines for the start of every buffer returned by
+@@ -261,7 +274,7 @@ void *cachecolor(void *buf, size_t len, size_t color_bytes)
+ 
+ 	/* Lookup our cacheline size once */
+ 	if (cacheline_size == 0) {
+-		cacheline_size = sysconf(_SC_LEVEL2_CACHE_LINESIZE);
++		cacheline_size = get_cacheline_size();
+ 		linemod = time(NULL);
+ 	}
+ 
+-- 
+2.17.1
+

meta-oe/recipes-benchmark/libhugetlbfs/files/0004-shm.c-Mark-glibc-specific-changes-so.patch

@@ -0,0 +1,30 @@
+From 7002dec46dae375e8aa1aa8577a5b274c02fc697 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 21 Jun 2018 19:48:04 -0700
+Subject: [PATCH 4/6] shm.c: Mark glibc specific changes so
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ shm.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/shm.c b/shm.c
+index 1f82cab..9447b63 100644
+--- a/shm.c
++++ b/shm.c
+@@ -48,10 +48,11 @@
+  * system shmget() may be performed without worry as there is no dynamic
+  * call chain.
+  */
++#ifdef __GLIBC__
+ extern void *dlsym (void *__restrict __handle, __const char *__restrict __name)
+ 		__attribute__((weak)) __THROW __nonnull ((2));
+ extern char *dlerror (void) __attribute__((weak)) __THROW;
+-
++#endif
+ 
+ /* call syscall shmget through the generic syscall mechanism */
+ static int syscall_shmget(key_t key, size_t size, int shmflg)
+-- 
+2.17.1
+

meta-oe/recipes-benchmark/libhugetlbfs/files/0005-Include-dirent.h-for-ino_t.patch

@@ -0,0 +1,28 @@
+From 87ed1706f426ed27fc4eeca7c3b09a4086c9a2a9 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 21 Jun 2018 19:51:02 -0700
+Subject: [PATCH 5/6] Include dirent.h for ino_t
+
+Fixes
+error: unknown type name 'ino_t'; did you mean 'int'?
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ tests/hugetests.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/tests/hugetests.h b/tests/hugetests.h
+index 8b1d8d9..056042c 100644
+--- a/tests/hugetests.h
++++ b/tests/hugetests.h
+@@ -22,6 +22,7 @@
+ 
+ #include <errno.h>
+ #include <string.h>
++#include <dirent.h>
+ 
+ #include "libhugetlbfs_privutils.h"
+ #include "libhugetlbfs_testprobes.h"
+-- 
+2.17.1
+

meta-oe/recipes-benchmark/libhugetlbfs/files/0006-include-limits.h-for-PATH_MAX.patch

@@ -0,0 +1,42 @@
+From 96c012ea31a2d124528f3b6f3b9857b71b059db3 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 21 Jun 2018 19:58:53 -0700
+Subject: [PATCH 6/6] include limits.h for PATH_MAX
+
+Fixes
+
+error: 'PATH_MAX' undeclared
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ hugeadm.c                | 1 +
+ tests/gethugepagesizes.c | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/hugeadm.c b/hugeadm.c
+index fe4211d..8db274c 100644
+--- a/hugeadm.c
++++ b/hugeadm.c
+@@ -33,6 +33,7 @@
+ #include <grp.h>
+ #include <pwd.h>
+ #include <fcntl.h>
++#include <limits.h>
+ 
+ #include <sys/stat.h>
+ #include <sys/types.h>
+diff --git a/tests/gethugepagesizes.c b/tests/gethugepagesizes.c
+index 9551b38..2645e3f 100644
+--- a/tests/gethugepagesizes.c
++++ b/tests/gethugepagesizes.c
+@@ -29,6 +29,7 @@
+ #include <fcntl.h>
+ #include <stdarg.h>
+ #include <hugetlbfs.h>
++#include <limits.h>
+ 
+ #include "hugetests.h"
+ 
+-- 
+2.17.1
+

meta-oe/recipes-benchmark/libhugetlbfs/libhugetlbfs_git.bb

@@ -19,6 +19,12 @@ SRC_URI = " \
     file://0001-run_test.py-not-use-hard-coded-path-.-obj-hugeadm.patch \
     file://libhugetlbfs-elf_i386-avoid-search-host-library-path.patch \
     file://Force-text-segment-alignment-to-0x08000000-for-i386-.patch \
+    file://0001-include-stddef.h-for-ptrdiff_t.patch \
+    file://0002-Mark-glibc-specific-code-so.patch \
+    file://0003-alloc.c-Avoid-sysconf-_SC_LEVEL2_CACHE_LINESIZE-on-l.patch \
+    file://0004-shm.c-Mark-glibc-specific-changes-so.patch \
+    file://0005-Include-dirent.h-for-ino_t.patch \
+    file://0006-include-limits.h-for-PATH_MAX.patch \
 "
 
 UPSTREAM_CHECK_GITTAGREGEX = "(?P<pver>\d+(\.\d+)+)"