diff --git a/arm.ld b/arm.ld index e216cbfa70..93285d6979 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 5b43172f36..47f35e5b2e 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 */