X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=linux%2Fplat.c;h=2842691e5e22d2e65be373eb10a26b27942ea8ea;hb=HEAD;hp=9109a3242c5e251fc63083820e3290d557a654af;hpb=5d636caaaf684a5d4832cd5d4460dfc214a815de;p=libpicofe.git

diff --git a/linux/plat.c b/linux/plat.c
index 9109a32..2cdcace 100644
--- a/linux/plat.c
+++ b/linux/plat.c
@@ -13,6 +13,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdarg.h>
+#include <stdint.h>
 #include <dirent.h>
 #include <sys/time.h>
 #include <time.h>
@@ -55,7 +56,13 @@ static int plat_get_exe_dir(char *dst, int len)
 	memcpy(dst, PICO_DATA_DIR, sizeof PICO_DATA_DIR);
 	return sizeof(PICO_DATA_DIR) - 1;
 #else
-	int j, ret = readlink("/proc/self/exe", dst, len - 1);
+	int j, ret = readlink(
+#ifdef __FreeBSD__
+	"/proc/curproc/file",
+#else
+	"/proc/self/exe",
+#endif
+	dst, len - 1);
 	if (ret < 0) {
 		perror("readlink");
 		ret = 0;
@@ -75,7 +82,7 @@ int plat_get_skin_dir(char *dst, int len)
 {
 	int ret = plat_get_exe_dir(dst, len);
 	if (ret < 0)
-		return ret;
+		ret = 0;
 
 	memcpy(dst + ret, "skin/", sizeof "skin/");
 	return ret + sizeof("skin/") - 1;
@@ -207,6 +214,16 @@ void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed)
 		}
 		flags &= ~MAP_HUGETLB;
 		ret = mmap(req, size, prot, flags, -1, 0);
+#ifdef MADV_HUGEPAGE
+		if (ret != MAP_FAILED && ((uintptr_t)ret & (2*1024*1024 - 1))) {
+			// try to manually realign assuming bottom-to-top alloc
+			munmap(ret, size);
+			ret = (void *)((uintptr_t)ret & ~(2*1024*1024 - 1));
+			ret = mmap(ret, size, prot, flags, -1, 0);
+		}
+		if (ret != MAP_FAILED)
+			madvise(ret, size, MADV_HUGEPAGE);
+#endif
 	}
 	if (ret == MAP_FAILED)
 		return NULL;