14 files changed, 248 insertions, 0 deletions
diff --git a/debian/rules.d/scripts/mod/Makefile b/debian/rules.d/scripts/mod/Makefile
new file mode 100644
index 000000000..35bf77cd2
--- /dev/null
+++ b/debian/rules.d/scripts/mod/Makefile
@@ -0,0 +1,22 @@
+PROGS = \
+	modpost \
+	modpost.real-lsb-32 \
+	modpost.real-lsb-64 \
+	modpost.real-msb-32 \
+	modpost.real-msb-64
+
+include $(top_rulesdir)/Makefile.inc
+
+wrapperdir = $(top_rulesdir)/$(OUTDIR)
+
+modpost.real-%:
+	$(MAKE) -f $(wrapperdir)/Makefile.real TYPE=$* SOURCEDIR=$(top_srcdir)/scripts/mod
+
+%: %.o
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
+
+modpost-opts.h: $(top_srcdir)/scripts/mod/modpost.c
+	$(wrapperdir)/gendef.py $< > $@
+
+modpost.o: modpost.c modpost-opts.h
+	$(CC) $(CFLAGS) -I $(CURDIR) -c -o $@ $<
diff --git a/debian/rules.d/scripts/mod/Makefile.real b/debian/rules.d/scripts/mod/Makefile.real
new file mode 100644
index 000000000..8b097f897
--- /dev/null
+++ b/debian/rules.d/scripts/mod/Makefile.real
@@ -0,0 +1,23 @@
+PROGS = modpost.real-$(TYPE)
+
+include $(top_rulesdir)/Makefile.inc
+
+wrapperdir = $(top_rulesdir)/$(OUTDIR)
+CFLAGS += -I $(CURDIR)/real-$(TYPE) -I $(wrapperdir)/real-$(TYPE)
+
+modpost.real-$(TYPE): file2alias.real-$(TYPE).o modpost.real-$(TYPE).o sumversion.real-$(TYPE).o
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
+
+%.real-$(TYPE).o: $(SOURCEDIR)/%.c real-$(TYPE)/devicetable-offsets.h
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+real-$(TYPE)/devicetable-offsets.s: $(SOURCEDIR)/devicetable-offsets.c
+	mkdir -p real-$(TYPE)
+	$(CC) -include $(wrapperdir)/real-$(TYPE)/types.h $(CFLAGS) -nostdinc -I$(top_srcdir)/include -S -o $@ $<
+
+real-$(TYPE)/devicetable-offsets.h: real-$(TYPE)/devicetable-offsets.s
+	echo >$@ "#define __DEVICEVTABLE_OFFSETS_H__"
+	sed -ne "s:^[[:space:]]*\.ascii[[:space:]]*\"\(.*\)\".*:\1:; \
+		 /^->/{s:->#\(.*\):/* \1 */:; \
+		 s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
+		 s:->::; p;}" $< >>$@
diff --git a/debian/rules.d/scripts/mod/elfconfig.h b/debian/rules.d/scripts/mod/elfconfig.h
new file mode 100644
index 000000000..8c90ea600
--- /dev/null
+++ b/debian/rules.d/scripts/mod/elfconfig.h
@@ -0,0 +1,7 @@
+#include <endian.h>
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define HOST_ELFDATA ELFDATA2LSB
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define HOST_ELFDATA ELFDATA2MSB
+#endif
diff --git a/debian/rules.d/scripts/mod/gendef.py b/debian/rules.d/scripts/mod/gendef.py
new file mode 100755
index 000000000..55d3fc60e
--- /dev/null
+++ b/debian/rules.d/scripts/mod/gendef.py
@@ -0,0 +1,20 @@
+#!/usr/bin/python3
+import re
+import sys
+
+for line in open(sys.argv[1]):
+    match = re.search(r'getopt\(argc, argv, "([\w:]*?)"\)', line)
+    if match:
+        options = match.group(1)
+        break
+else:
+    raise RuntimeError
+
+print('#define GETOPT_OPTIONS "%s"' % options)
+
+print('#define GETOPT_CASE', end=' ')
+for c in options:
+    if c == ':' or c == 'T':
+        continue
+    print("case '%c':" % c, end=' ')
+print()
diff --git a/debian/rules.d/scripts/mod/modpost.c b/debian/rules.d/scripts/mod/modpost.c
new file mode 100644
index 000000000..d574957ae
--- /dev/null
+++ b/debian/rules.d/scripts/mod/modpost.c
@@ -0,0 +1,136 @@
+#include <elf.h>
+#include <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "modpost-opts.h"
+
+int main (int argc, char *argv[])
+{
+  char const *data, *class;
+  char *list_name = NULL;
+  char *name = NULL;
+  char prog[1024];
+  unsigned char ei[EI_NIDENT];
+  int opt;
+  FILE *file;
+
+  while ((opt = getopt (argc, argv, GETOPT_OPTIONS)) != -1)
+  { 
+    switch(opt)
+    {
+      GETOPT_CASE
+        break;
+      case 'T':
+        list_name = optarg;
+        break;
+      default:
+        return EXIT_FAILURE;
+    }
+  }
+
+  if (optind != argc)
+  {
+    name = argv[optind];
+  }
+  else if (list_name)
+  {
+    size_t name_len;
+    int is_stdin = strcmp (list_name, "-") == 0;
+
+    /* Read first line of list file */
+    if (is_stdin)
+    {
+      file = stdin;
+      setvbuf(stdin, NULL, _IONBF, 0); /* don't over-read */
+    }
+    else
+    {
+      file = fopen (list_name, "r");
+      if (!file)
+      {
+        fprintf (stderr, "Can't open \"%s\"\n", list_name);
+        return EXIT_FAILURE;
+      }
+    }
+    if (getline (&name, &name_len, file) < 0)
+    {
+      if (errno)
+      {
+        fprintf (stderr, "Can't read \"%s\"\n", list_name);
+        return EXIT_FAILURE;
+      }
+      else
+      {
+        /* Empty list */
+        return EXIT_SUCCESS;
+      }
+    }
+    if (!is_stdin)
+      fclose(file);
+
+    /* Remove new-line */
+    name [strcspn (name, "\n")] = 0;
+
+    /* If this came from stdin, we need to add the first name to the
+     * arguments, because the upstream modpost can't read it again.
+     */
+    if (is_stdin)
+    {
+      char **new_argv = malloc (sizeof(*argv) * (argc + 2));
+      memcpy(new_argv, argv, sizeof(*argv) * argc);
+      new_argv [argc] = name;
+      new_argv [argc + 1] = NULL;
+      argv = new_argv;
+    }
+  }
+  else
+  {
+    /* Empty list */
+    return EXIT_SUCCESS;
+  }
+
+  if (!(file = fopen (name, "r")))
+  {
+    fprintf (stderr, "Can't open \"%s\"\n", name);
+    return EXIT_FAILURE;
+  }
+
+  if (fread (ei, 1, EI_NIDENT, file) != EI_NIDENT)
+  {
+    fprintf (stderr, "Error: input truncated\n");
+    return EXIT_FAILURE;
+  }
+
+  if (memcmp (ei, ELFMAG, SELFMAG) != 0)
+  {
+    fprintf (stderr, "Error: not ELF\n");
+    return EXIT_FAILURE;
+  }
+  switch (ei[EI_DATA]) {
+    case ELFDATA2LSB:
+      data = "lsb";
+      break;
+    case ELFDATA2MSB:
+      data = "msb";
+      break;
+    default:
+      return EXIT_FAILURE;
+  }
+  switch (ei[EI_CLASS]) {
+    case ELFCLASS32:
+      class = "32";
+      break;
+    case ELFCLASS64:
+      class = "64";
+      break;
+    default:
+      return EXIT_FAILURE;
+  }
+  snprintf (prog, sizeof prog, "%s.real-%s-%s", argv[0], data, class);
+
+  return execv (prog, argv);
+}
diff --git a/debian/rules.d/scripts/mod/real-lsb-32/elfconfig.h b/debian/rules.d/scripts/mod/real-lsb-32/elfconfig.h
new file mode 100644
index 000000000..1f7a7321a
--- /dev/null
+++ b/debian/rules.d/scripts/mod/real-lsb-32/elfconfig.h
@@ -0,0 +1,4 @@
+#define KERNEL_ELFCLASS ELFCLASS32
+#define KERNEL_ELFDATA ELFDATA2LSB
+#define MODULE_SYMBOL_PREFIX ""
+#include "../elfconfig.h"
diff --git a/debian/rules.d/scripts/mod/real-lsb-32/types.h b/debian/rules.d/scripts/mod/real-lsb-32/types.h
new file mode 100644
index 000000000..bad6dcccd
--- /dev/null
+++ b/debian/rules.d/scripts/mod/real-lsb-32/types.h
@@ -0,0 +1,3 @@
+#include "../types.h"
+typedef __u32 kernel_ulong_t;
+#define BITS_PER_LONG 32
diff --git a/debian/rules.d/scripts/mod/real-lsb-64/elfconfig.h b/debian/rules.d/scripts/mod/real-lsb-64/elfconfig.h
new file mode 100644
index 000000000..e6f519fcc
--- /dev/null
+++ b/debian/rules.d/scripts/mod/real-lsb-64/elfconfig.h
@@ -0,0 +1,4 @@
+#define KERNEL_ELFCLASS ELFCLASS64
+#define KERNEL_ELFDATA ELFDATA2LSB
+#define MODULE_SYMBOL_PREFIX ""
+#include "../elfconfig.h"
diff --git a/debian/rules.d/scripts/mod/real-lsb-64/types.h b/debian/rules.d/scripts/mod/real-lsb-64/types.h
new file mode 100644
index 000000000..8d7b87591
--- /dev/null
+++ b/debian/rules.d/scripts/mod/real-lsb-64/types.h
@@ -0,0 +1,3 @@
+#include "../types.h"
+typedef __u64 __attribute__((aligned(8))) kernel_ulong_t;
+#define BITS_PER_LONG 64
diff --git a/debian/rules.d/scripts/mod/real-msb-32/elfconfig.h b/debian/rules.d/scripts/mod/real-msb-32/elfconfig.h
new file mode 100644
index 000000000..a9ae561ab
--- /dev/null
+++ b/debian/rules.d/scripts/mod/real-msb-32/elfconfig.h
@@ -0,0 +1,4 @@
+#define KERNEL_ELFCLASS ELFCLASS32
+#define KERNEL_ELFDATA ELFDATA2MSB
+#define MODULE_SYMBOL_PREFIX ""
+#include "../elfconfig.h"
diff --git a/debian/rules.d/scripts/mod/real-msb-32/types.h b/debian/rules.d/scripts/mod/real-msb-32/types.h
new file mode 100644
index 000000000..bad6dcccd
--- /dev/null
+++ b/debian/rules.d/scripts/mod/real-msb-32/types.h
@@ -0,0 +1,3 @@
+#include "../types.h"
+typedef __u32 kernel_ulong_t;
+#define BITS_PER_LONG 32
diff --git a/debian/rules.d/scripts/mod/real-msb-64/elfconfig.h b/debian/rules.d/scripts/mod/real-msb-64/elfconfig.h
new file mode 100644
index 000000000..844d22f5c
--- /dev/null
+++ b/debian/rules.d/scripts/mod/real-msb-64/elfconfig.h
@@ -0,0 +1,4 @@
+#define KERNEL_ELFCLASS ELFCLASS64
+#define KERNEL_ELFDATA ELFDATA2MSB
+#define MODULE_SYMBOL_PREFIX ""
+#include "../elfconfig.h"
diff --git a/debian/rules.d/scripts/mod/real-msb-64/types.h b/debian/rules.d/scripts/mod/real-msb-64/types.h
new file mode 100644
index 000000000..8d7b87591
--- /dev/null
+++ b/debian/rules.d/scripts/mod/real-msb-64/types.h
@@ -0,0 +1,3 @@
+#include "../types.h"
+typedef __u64 __attribute__((aligned(8))) kernel_ulong_t;
+#define BITS_PER_LONG 64
diff --git a/debian/rules.d/scripts/mod/types.h b/debian/rules.d/scripts/mod/types.h
new file mode 100644
index 000000000..bba382183
--- /dev/null
+++ b/debian/rules.d/scripts/mod/types.h
@@ -0,0 +1,12 @@
+/* Minimal definitions for mod_devicetable.h and devicetable-offsets.c */
+typedef unsigned char __u8;
+typedef unsigned short __u16;
+typedef unsigned int __u32;
+typedef unsigned long long __u64;
+typedef struct {
+        __u8 b[16];
+} guid_t;
+typedef guid_t uuid_le;
+typedef unsigned char uuid_t[16];
+#define UUID_STRING_LEN 36
+#define offsetof(a,b) __builtin_offsetof(a,b)