diff options
| author | Jeff Johnston <jjohnstn@redhat.com> | 2014-03-22 00:58:54 +0400 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2014-03-22 00:58:54 +0400 |
| commit | e59026e844dc2f11f032058e671da848beb67f91 (patch) | |
| tree | b5a9903ca1f3195791f08f41f4d5333a094e4f31 /libgloss/nds32 | |
| parent | 31b1f3e55f50aa1034b0b318c55f3776a1cd7e5d (diff) | |
2014-03-21 Sabrini Ni <sabrinanitw@gmail.com>
* nds32/crt0.S: Initialize ITB base.
* nds32/crt1.S: Ditto.
Diffstat (limited to 'libgloss/nds32')
| -rw-r--r-- | libgloss/nds32/crt0.S | 11 | ||||
| -rw-r--r-- | libgloss/nds32/crt1.S | 11 |
2 files changed, 22 insertions, 0 deletions
diff --git a/libgloss/nds32/crt0.S b/libgloss/nds32/crt0.S index 5f56e9a50..ec294428c 100644 --- a/libgloss/nds32/crt0.S +++ b/libgloss/nds32/crt0.S @@ -52,6 +52,17 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .type _start, @function .align 2 _start: +.L_hw_config: +#if __NDS32_EX9_EXT__ + /* Initialize the table base of EX9 instruction. */ + mfsr $r0, $MSC_CFG /* Check if support EIT. */ + srli $r0, $r0, 24 + andi $r0, $r0, 0x1 + beqz $r0, .L_fp_gp_init + la $r0, $_ITB_BASE_ /* Init ITB. */ + mtusr $r0, $ITB +#endif + .L_fp_gp_init: /* Initialization for $gp. The _SDA_BASE_ location stands for Small Data Access. */ diff --git a/libgloss/nds32/crt1.S b/libgloss/nds32/crt1.S index 5ff4d9629..f8365cef5 100644 --- a/libgloss/nds32/crt1.S +++ b/libgloss/nds32/crt1.S @@ -52,6 +52,17 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .type _start, @function .align 2 _start: +.L_hw_config: +#if __NDS32_EX9_EXT__ + /* Initialize the table base of EX9 instruction. */ + mfsr $r0, $MSC_CFG /* Check if support EIT. */ + srli $r0, $r0, 24 + andi $r0, $r0, 0x1 + beqz $r0, .L_fp_gp_init + la $r0, $_ITB_BASE_ /* Init ITB. */ + mtusr $r0, $ITB +#endif + .L_fp_gp_init: /* Initialization for $gp. The _SDA_BASE_ location stands for Small Data Access. */ |