sbtools: fix handling of raw mode, have elf_write looks like elf_read, fix uninitiliazed offset of bss sections, add real key override on decrypt

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30858 a1c6a512-1295-4272-9138-f99709370657

3 files changed, 32 insertions, 3 deletions

diff --git a/utils/sbtools/elf.c b/utils/sbtools/elf.c
index 896c9cb..718cb58 100644
--- a/utils/sbtools/elf.c
+++ b/utils/sbtools/elf.c
@@ -19,6 +19,7 @@
  *
  ****************************************************************************/
 #include "elf.h"
+#include "misc.h"
 
 /**
  * Definitions
@@ -219,7 +220,8 @@ void elf_add_fill_section(struct elf_params_t *params,
     sec->pattern = pattern;
 }
 
-void elf_write_file(struct elf_params_t *params, elf_write_fn_t write, void *user)
+void elf_write_file(struct elf_params_t *params, elf_write_fn_t write,
+    elf_printf_fn_t printf, void *user)
 {
     Elf32_Ehdr ehdr;
     uint32_t phnum = 0;
@@ -236,6 +238,10 @@ void elf_write_file(struct elf_params_t *params, elf_write_fn_t write, void *use
             sec->offset = offset;
             offset += sec->size;
         }
+        else
+        {
+            sec->offset = 0;
+        }
         
         phnum++;
         sec = sec->next;
diff --git a/utils/sbtools/elf.h b/utils/sbtools/elf.h
index f85595d..2166833 100644
--- a/utils/sbtools/elf.h
+++ b/utils/sbtools/elf.h
@@ -82,7 +82,7 @@ void elf_add_fill_section(struct elf_params_t *params,
     uint32_t fill_addr, uint32_t size, uint32_t pattern);
 uint32_t elf_translate_virtual_address(struct elf_params_t *params, uint32_t addr);
 void elf_translate_addresses(struct elf_params_t *params);
-void elf_write_file(struct elf_params_t *params, elf_write_fn_t write, void *user);
+void elf_write_file(struct elf_params_t *params, elf_write_fn_t write, elf_printf_fn_t printf, void *user);
 bool elf_read_file(struct elf_params_t *params, elf_read_fn_t read, elf_printf_fn_t printf,
     void *user);
 bool elf_is_empty(struct elf_params_t *params);
diff --git a/utils/sbtools/sbtoelf.c b/utils/sbtools/sbtoelf.c
index 87017ab..47aebe7 100644
--- a/utils/sbtools/sbtoelf.c
+++ b/utils/sbtools/sbtoelf.c
@@ -86,6 +86,17 @@ static uint8_t instruction_checksum(struct sb_instruction_header_t *hdr)
     return sum;
 }
 
+static void elf_printf(void *user, bool error, const char *fmt, ...)
+{
+    if(!g_debug && !error)
+        return;
+    (void) user;
+    va_list args;
+    va_start(args, fmt);
+    vprintf(fmt, args);
+    va_end(args);
+}
+
 static void elf_write(void *user, uint32_t addr, const void *buf, size_t count)
 {
     FILE *f = user;
@@ -105,7 +116,7 @@ static void extract_elf_section(struct elf_params_t *elf, int count, const char
     
     if(fd == NULL)
         return ;
-    elf_write_file(elf, elf_write, fd);
+    elf_write_file(elf, elf_write, elf_printf, fd);
     fclose(fd);
 }
 
@@ -481,6 +492,15 @@ static void extract(unsigned long filesize)
         }
     }
 
+    if(getenv("SB_REAL_KEY") != 0)
+    {
+        struct crypto_key_t k;
+        char *env = getenv("SB_REAL_KEY");
+        if(!parse_key(&env, &k) || *env)
+            bug("Invalid SB_REAL_KEY");
+        memcpy(real_key, k.u.key, 16);
+    }
+
     color(RED);
     printf("  Summary:\n");
     color(GREEN);
@@ -751,6 +771,9 @@ int main(int argc, char **argv)
                 add_keys(&g_zero_key, 1);
                 break;
             }
+            case 'r':
+                g_raw_mode = true;
+                break;
             case 'a':
             {
                 struct crypto_key_t key;