gwj / at91sam9263 · Commits

Commit d03d860b151d382e3a158e8e27838729cfcda075

Authored by blueswir1
1 parent 815a6742

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
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Showing 2 changed files with 14 additions and 1 deletions
... ... @@ -63,6 +63,7 @@ SECTIONS
63 63 . = ALIGN(0x100000) + (. & (0x100000 - 1));
64 64 .data :
65 65 {
  66 + *(.gen_code)
66 67 *(.data)
67 68 *(.gnu.linkonce.d*)
68 69 CONSTRUCTORS
... ...
... ... @@ -89,7 +89,19 @@ int nb_tbs;
89 89 /* any access to the tbs or the page table must use this lock */
90 90 spinlock_t tb_lock = SPIN_LOCK_UNLOCKED;
91 91  
92   -uint8_t code_gen_prologue[1024] __attribute__((aligned (32)));
  92 +#if defined(__arm__)
  93 +/* The prologue must be reachable with a direct jump. ARM has a
  94 + limited branch range (possibly also PPC and SPARC?) so place it in a
  95 + section close to code segment. */
  96 +#define code_gen_section \
  97 + __attribute__((__section__(".gen_code"))) \
  98 + __attribute__((aligned (32)))
  99 +#else
  100 +#define code_gen_section \
  101 + __attribute__((aligned (32)))
  102 +#endif
  103 +
  104 +uint8_t code_gen_prologue[1024] code_gen_section;
93 105 uint8_t *code_gen_buffer;
94 106 unsigned long code_gen_buffer_size;
95 107 /* threshold to flush the translated code buffer */
... ...