update to ida 7.6, add builds

idasdk76/ldr/aif/aifcmn.cpp

@@ -0,0 +1,88 @@
+
+static const uint32 magic1[] = { ZERO_CODE1 };
+static const uint32 magic2[] = { ZERO_CODE2 };
+static const uint32 *const magics[] = { magic1, magic2 };
+
+//--------------------------------------------------------------------------
+static void swap_header(aif_header_t *hd)
+{
+  uint32 *ptr = (uint32 *)hd;
+  const int size = sizeof(aif_header_t) / sizeof(uint32);
+  for ( size_t i=0; i < size; i++, ptr++ )
+    *ptr = swap32(*ptr);
+}
+
+//--------------------------------------------------------------------------
+// 0-failed, 1-little endian, 2-big endian
+static int match_zero_code(aif_header_t *hd)
+{
+  int mostfirst = 0;
+  for ( int i=0; i < qnumber(magics); i++ )
+  {
+    if ( memcmp(hd->zero_code, magics[i], sizeof(hd->zero_code)) == 0 )
+      return mostfirst+1;
+    swap_header(hd);
+    mostfirst = !mostfirst;
+    if ( memcmp(hd->zero_code, magics[i], sizeof(hd->zero_code)) == 0 )
+      return mostfirst+1;
+  }
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+//
+//      check input file format. if recognized, then return 1
+//      otherwise return 0
+//
+bool is_aif_file(linput_t *li)
+{
+  aif_header_t hd;
+  qlseek(li, 0);
+  if ( qlread(li, &hd, sizeof(hd)) != sizeof(hd) )
+    return false;
+  return match_zero_code(&hd) != 0;
+}
+
+//--------------------------------------------------------------------------
+static void swap_section(section_t *s)
+{
+  s->codestart = swap32(s->codestart);
+  s->datastart = swap32(s->datastart);
+  s->codesize  = swap32(s->codesize);
+  s->datasize  = swap32(s->datasize);
+  s->fileinfo  = swap32(s->fileinfo);
+  s->debugsize = swap32(s->debugsize);
+  s->name      = swap32(s->name);
+}
+
+//--------------------------------------------------------------------------
+static void swap_dsym(dsym_t *s)
+{
+  s->sym   = swap32(s->sym);
+  s->value = swap32(s->value);
+}
+
+//--------------------------------------------------------------------------
+// returns true - debug info with pascal symbols
+static bool swap_symbols(dsym_t *ds, char *str, uchar *end, size_t nsyms)
+{
+  int npascal = 0;          // number of pascal strings
+  int nc = 0;               // number of c strings
+  for ( int i=0; i < nsyms; i++,ds++ )
+  {
+    if ( is_mf() )
+      swap_dsym(ds);
+    if ( ds->sym & ASD_16BITSYM )
+      continue;
+    size_t off = size_t(ds->sym & ASD_SYMOFF);
+    char *name = str + off;
+    if ( name >= (char *)end )
+      continue;
+    if ( name[0] == strlen(name)-1 )
+      npascal++;
+    else
+      nc++;
+  }
+  return npascal > nc;
+}
+