From eea5db3188cf0fa3fe94e444a8b18c27918cbff1 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@linux.intel.com>
Date: Thu, 1 Sep 2016 22:45:42 +0100
Subject: [PATCH] tools/makeversion: build version headers

---
 Kernel/tools/makeversion.c | 83 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 Kernel/tools/makeversion.c

diff --git a/Kernel/tools/makeversion.c b/Kernel/tools/makeversion.c
new file mode 100644
index 00000000..87971759
--- /dev/null
+++ b/Kernel/tools/makeversion.c
@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+void write_body(FILE *out, char *v, char *sv, char *p)
+{
+	fprintf(out, "#include \"kernel.h\"\n\
+#include \"version.h\"\n\
+/* Format is version/sysname/release/system */\n\
+/* pack version first so we can use uname_str as a printf target */\n\
+struct sysinfoblk sysinfo = {\n\
+	sizeof(struct sysinfoblk),\n\
+	CONFIG_BANKS,\n\
+	UFTSIZE,\n\
+	PTABSIZE,\n\
+	TICKSPERSEC,\n\
+	0,\n\
+	0,\n\
+#ifdef CONFIG_PROFIL\n\
+	CONF_PROFIL |\n\
+#endif\n\
+#ifdef CONFIG_LEVEL_2\n\
+	CONF_LEVEL_2 |\n\
+#endif\n\
+	0,\n\
+	{0, 0, 0},\n\
+	0,\n\
+	0,\n\
+	/* Quoting to work around cc65 bug */\n\
+	\"%s\\0\"\"Fuzix\\0\"\"%s\\0\"\"%s\"\n\
+};\n\n",
+	v, sv, p);
+}
+
+void write_header(FILE *out, char *v, char *sv, char *p)
+{
+	fprintf(out, "\
+/*\n\
+ *	System info shared with user space\n\
+ */\n\
+struct sysinfoblk {\n\
+  uint8_t infosize;		/* For expandability */\n\
+  uint8_t banks;		/* Banks in our 64K (and thus pagesize) */\n\
+  uint8_t max_open;\n\
+  uint8_t nproc;		/* Number of processes */\n\
+  uint16_t ticks;		/* Tick rate in HZ */\n\
+  uint16_t memk;		/* Memory in KB */\n\
+  uint16_t usedk;		/* Used memory in KB */\n\
+  uint16_t config;		/* Config flag mask */\n\
+#define CONF_PROFIL		1\n\
+#define CONF_NET		2	/* Hah.. 8) */\n\
+#define CONF_LEVEL_2		4\n\
+  uint16_t loadavg[3];\n\
+  uint16_t swapk;\n\
+  uint16_t swapusedk;\n\
+  char uname[%d];\n\
+};\n\
+\n", strlen(v) + strlen(sv) + strlen(p) + 9);
+}
+
+int main(int argc, char *argv[])
+{
+	FILE *f;
+	if (argc != 4) {
+		fprintf(stderr, "%s version subversion platform\n", argv[0]);
+		exit(1);
+	}
+	f = fopen("include/sysinfoblk.h", "w");
+	if (f == NULL) {
+		perror("include/sysinfoblk.h");
+		exit(1);
+	}
+	write_header(f, argv[1], argv[2], argv[3]);
+	fclose(f);
+	f = fopen("version.c", "w");
+	if (f == NULL) {
+		perror("version.c");
+		exit(1);
+	}
+	write_body(f, argv[1], argv[2], argv[3]);
+	fclose(f);
+}
-- 
2.34.1