From: Dmitry V. Levin <ldv@altlinux.org>
Date: Mon, 6 Nov 2017 19:21:58 +0000 (+0000)
Subject: mpers.m4: check for size of long and kernel_long_t
X-Git-Tag: v4.20~18
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9517cfa9963cdf329cde2163905ab85508b02908;p=strace

mpers.m4: check for size of long and kernel_long_t

The primary purpose of this new check is diagnostics.

* m4/mpers.m4 (st_MPERS): Check for size of long and kernel_long_t.
---

diff --git a/m4/mpers.m4 b/m4/mpers.m4
index 277a3841..bb46fae8 100644
--- a/m4/mpers.m4
+++ b/m4/mpers.m4
@@ -126,6 +126,23 @@ case "$arch" in
 				  [Define to 1 if you have CFLAG mpers support])
 			st_MPERS_STRUCT_STAT([])
 			st_MPERS_STRUCT_STAT([64])
+
+			if test $st_cv_runtime = yes; then
+				pushdef([SIZEOF_LONG],
+					MPERS_NAME[_SIZEOF_LONG])
+				st_MPERS_LOAD_AC_CV([sizeof_long])
+				AC_CHECK_SIZEOF([long])
+				st_MPERS_SAVE_AC_CV([sizeof_long])
+				popdef([SIZEOF_LONG])
+
+				pushdef([SIZEOF_KERNEL_LONG_T],
+					MPERS_NAME[_SIZEOF_KERNEL_LONG_T])
+				st_MPERS_LOAD_AC_CV([sizeof_kernel_long_t])
+				AC_CHECK_SIZEOF([kernel_long_t],,
+						[#include "$srcdir/kernel_types.h"])
+				st_MPERS_SAVE_AC_CV([sizeof_kernel_long_t])
+				popdef([SIZEOF_KERNEL_LONG_T])
+			fi
 		fi
 	fi
 	CFLAGS="$saved_CFLAGS"