size: Add a size tool to report binary sizes

diff --git a/Standalone/Makefile b/Standalone/Makefile
index c94072f..d8ea331 100644 (file)
--- a/Standalone/Makefile
+++ b/Standalone/Makefile
@@ -1,6 +1,6 @@
 CC=gcc
 CCOPTS=-O2 -g -Wall -Wno-char-subscripts -Wno-deprecated-declarations
-TARGETS=mkfs fsck ucp
+TARGETS=mkfs fsck ucp chmem size
 UTILS=util.o devio.o xfs1.o xfs1a.o xfs1b.o xfs2.o
 
 all:   $(TARGETS)
@@ -17,5 +17,11 @@ fsck:        fsck.o util.o
 ucp:   ucp.o $(UTILS)
        $(CC) $(CCOPTS) -o $@ $< $(UTILS)
 
+chmem: chmem.o
+       $(CC) $(CCOPTS) -o $@ $<
+
+size:  size.o
+       $(CC) $(CCOPTS) -o $@ $<
+
 %.o:   %.c
        $(CC) $(CCOPTS) -c -o $@ $<

diff --git a/Standalone/size.c b/Standalone/size.c
new file mode 100644 (file)
index 0000000..4b49346
--- /dev/null
+++ b/Standalone/size.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+static int bufpair(unsigned char *p, int n)
+{
+  return p[n] + 256 *p[n+1];
+}
+
+int main(int argc, char *argv[])
+{
+  FILE *fp;
+  unsigned char buf[16];
+  int basepage;
+  int n;
+
+  if (argc < 2) {
+    fprintf(stderr, "%s [executable]\n", argv[0]);
+    exit(1);
+  }
+  for (n = 1; n < argc; n++) {
+    fp = fopen(argv[n], "r");
+    if (fp == NULL) {
+      perror(argv[n]);
+      exit(1);
+    }
+    if (fread(buf, 16, 1, fp) != 1) {
+      fprintf(stderr, "%s: too short ?\n", argv[0]);
+      exit(1);
+    }
+    if (buf[0] != 0xC3 || buf[3] != 'F' || buf[4] != 'Z'|| buf[5] != 'X' ||
+      buf[6] != '1') {
+      fprintf(stderr, "%s: not a Fuzix binary format.\n", argv[1]);
+      exit(1);
+    }
+    fclose(fp);
+    basepage = buf[7] << 8;
+    printf(" base text data  bss   size  hex filename\n");
+    printf("%5x%5x%5x%5x%7d%5x %s\n",
+      basepage,
+      bufpair(buf, 10) - basepage,
+      bufpair(buf, 12) - bufpair(buf, 10) - basepage,
+      bufpair(buf, 14),
+      bufpair(buf, 14) + bufpair(buf, 12) - basepage,
+      bufpair(buf, 14) + bufpair(buf, 12) - basepage,
+      argv[n]);
+  }
+  exit(0);
+}