Get rid of GNU libelf and its autoconf nastiness and replace

it with FreeBSD's implementation

--HG--
extra : convert_revision : ef9c4551b9a6b54b76a89f286ff9804c55790621

1 files changed, 101 insertions, 0 deletions

diff --git a/ext/libelf/libelf_msize.m4 b/ext/libelf/libelf_msize.m4
new file mode 100644
index 000000000..cca31679b
--- /dev/null
+++ b/ext/libelf/libelf_msize.m4
@@ -0,0 +1,101 @@
+/*-
+ * Copyright (c) 2006 Joseph Koshy
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include "elf32.h"
+#include "elf64.h"
+#include "libelf.h"
+#include "_libelf.h"
+
+/* WARNING: GENERATED FROM __file__. */
+
+struct msize {
+	size_t	msz32;
+	size_t	msz64;
+};
+
+divert(-1)
+include(SRCDIR`/elf_types.m4')
+
+define(BYTE_SIZE,	1)
+define(NOTE_SIZE,	1)
+
+/*
+ * Unimplemented types.
+ */
+define(MOVEP_SIZE,	0)
+define(SXWORD_SIZE32,	0)
+define(XWORD_SIZE32,	0)
+
+define(`DEFINE_ELF_MSIZE',
+  `ifdef($1`_SIZE',
+    `define($1_SIZE32,$1_SIZE)
+     define($1_SIZE64,$1_SIZE)',
+    `ifdef($1`_SIZE32',`',
+      `define($1_SIZE32,sizeof(Elf32_$2))')
+     ifdef($1`_SIZE64',`',
+      `define($1_SIZE64,sizeof(Elf64_$2))')')')
+define(`DEFINE_ELF_MSIZES',
+  `ifelse($#,1,`',
+    `DEFINE_ELF_MSIZE($1)
+     DEFINE_ELF_MSIZES(shift($@))')')
+
+DEFINE_ELF_MSIZES(ELF_TYPE_LIST)
+
+define(`MSIZE',
+  `[ELF_T_$1] = { .msz32 = $1_SIZE32, .msz64 = $1_SIZE64 },')
+define(`MSIZES',
+  `ifelse($#,1,`',
+    `MSIZE($1)
+MSIZES(shift($@))')')
+
+divert(0)
+
+static struct msize msize[ELF_T_NUM] = {
+MSIZES(ELF_TYPE_LIST)
+};
+
+size_t
+_libelf_msize(Elf_Type t, int elfclass, unsigned int version)
+{
+	size_t sz;
+
+	assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64);
+	assert((signed) t >= ELF_T_FIRST && t <= ELF_T_LAST);
+
+	if (version != EV_CURRENT) {
+		LIBELF_SET_ERROR(VERSION, 0);
+		return (0);
+	}
+
+	sz = (elfclass == ELFCLASS32) ? msize[t].msz32 : msize[t].msz64;
+
+	return (sz);
+}