SH gcc 4.6.3 with link-time optimization, for Archos targets

This is work from FS#12431 synced to current HEAD and slightly
tweaked (gcc 4.6.2 -> 4.6.3, binutils 2.21.1 -> 2.22)

Change-Id: I76af91e80ac2a9c16a776c7f0a33cc51603bbf9b

1 files changed, 8 insertions, 3 deletions

diff --git a/firmware/target/sh/system-sh.c b/firmware/target/sh/system-sh.c
index e054801b57..921d08f7b4 100644
--- a/firmware/target/sh/system-sh.c
+++ b/firmware/target/sh/system-sh.c
@@ -180,6 +180,7 @@ asm (
  * Must go into the same section as the UIE() handler */
 
     "\t.text\n"
+    ".global\t_UIE4\n"
     "_UIE4:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\n"
     "_UIE5:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\n"
     "_UIE6:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\n"
@@ -286,13 +287,17 @@ asm (
     "_UIE107:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\n"
     "_UIE108:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\n"
     "_UIE109:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\n"
-
+    "_UIE:\tmov.l\t__UIE_k,r0\n"
+    "jmp\t@r0\n"
+    "nop\n"
+    ".align\t4\n"
+    "__UIE_k:\t.long\t__UIE\n"
 );
 
 extern void UIE4(void); /* needed for calculating the UIE number */
 
-void UIE (unsigned int pc) __attribute__((section(".text")));
-void UIE (unsigned int pc) /* Unexpected Interrupt or Exception */
+void _UIE (unsigned int pc) __attribute__((section(".text"))) USED_ATTR;
+void _UIE (unsigned int pc) /* Unexpected Interrupt or Exception */
 {
     unsigned int n;