From: blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Thu, 10 Jul 2008 17:21:31 +0000 (+0000)
Subject: Link ARM prologue closer to code segment to avoid a build failure
X-Git-Tag: TizenStudio_2.0_p2.3~11359
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=719acc51a36a28e62b5347845b1b4b72763f7285;p=sdk%2Femulator%2Fqemu.git

Link ARM prologue closer to code segment to avoid a build failure

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4867 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/arm.ld b/arm.ld
index e216cbf..93285d6 100644
--- a/arm.ld
+++ b/arm.ld
@@ -63,6 +63,7 @@ SECTIONS
   . = ALIGN(0x100000) + (. & (0x100000 - 1));
   .data    :
   {
+    *(.gen_code)
     *(.data)
     *(.gnu.linkonce.d*)
     CONSTRUCTORS
diff --git a/exec.c b/exec.c
index 5b43172..47f35e5 100644
--- a/exec.c
+++ b/exec.c
@@ -89,7 +89,19 @@ int nb_tbs;
 /* any access to the tbs or the page table must use this lock */
 spinlock_t tb_lock = SPIN_LOCK_UNLOCKED;
 
-uint8_t code_gen_prologue[1024] __attribute__((aligned (32)));
+#if defined(__arm__)
+/* The prologue must be reachable with a direct jump. ARM has a
+ limited branch range (possibly also PPC and SPARC?) so place it in a
+ section close to code segment. */
+#define code_gen_section                                \
+    __attribute__((__section__(".gen_code")))           \
+    __attribute__((aligned (32)))
+#else
+#define code_gen_section                                \
+    __attribute__((aligned (32)))
+#endif
+
+uint8_t code_gen_prologue[1024] code_gen_section;
 uint8_t *code_gen_buffer;
 unsigned long code_gen_buffer_size;
 /* threshold to flush the translated code buffer */