diff options
Diffstat (limited to 'gcc/config/c4x/c4x.c')
| -rw-r--r-- | gcc/config/c4x/c4x.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/gcc/config/c4x/c4x.c b/gcc/config/c4x/c4x.c index e708521e509..5d097cc0cda 100644 --- a/gcc/config/c4x/c4x.c +++ b/gcc/config/c4x/c4x.c @@ -44,7 +44,6 @@ Boston, MA 02111-1307, USA. */ #include "flags.h" #include "loop.h" #include "recog.h" -#include "c-tree.h" #include "ggc.h" #include "cpplib.h" #include "toplev.h" @@ -186,6 +185,7 @@ static int c4x_valid_operands PARAMS ((enum rtx_code, rtx *, enum machine_mode, int)); static int c4x_arn_reg_operand PARAMS ((rtx, enum machine_mode, unsigned int)); static int c4x_arn_mem_operand PARAMS ((rtx, enum machine_mode, unsigned int)); +static void c4x_file_start PARAMS ((void)); static void c4x_file_end PARAMS ((void)); static void c4x_check_attribute PARAMS ((const char *, tree, tree, tree *)); static int c4x_r11_set_p PARAMS ((rtx)); @@ -208,6 +208,10 @@ static int c4x_address_cost PARAMS ((rtx)); #define TARGET_ASM_ALIGNED_HI_OP NULL #undef TARGET_ASM_ALIGNED_SI_OP #define TARGET_ASM_ALIGNED_SI_OP NULL +#undef TARGET_ASM_FILE_START +#define TARGET_ASM_FILE_START c4x_file_start +#undef TARGET_ASM_FILE_START_FILE_DIRECTIVE +#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true #undef TARGET_ASM_FILE_END #define TARGET_ASM_FILE_END c4x_file_end @@ -4564,6 +4568,26 @@ c4x_external_ref (name) extern_head = p; } +/* We need to have a data section we can identify so that we can set + the DP register back to a data pointer in the small memory model. + This is only required for ISRs if we are paranoid that someone + may have quietly changed this register on the sly. */ +static void +c4x_file_start () +{ + int dspversion = 0; + if (TARGET_C30) dspversion = 30; + if (TARGET_C31) dspversion = 31; + if (TARGET_C32) dspversion = 32; + if (TARGET_C33) dspversion = 33; + if (TARGET_C40) dspversion = 40; + if (TARGET_C44) dspversion = 44; + + default_file_start (); + fprintf (asm_out_file, "\t.version\t%d\n", dspversion); + fputs ("\n\t.data\ndata_sec:\n", asm_out_file); +} + static void c4x_file_end () |