diff options
Diffstat (limited to 'gcc/config/mn10300/mn10300.c')
| -rw-r--r-- | gcc/config/mn10300/mn10300.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/gcc/config/mn10300/mn10300.c b/gcc/config/mn10300/mn10300.c index 608f8a0fa35..1a0eb37bbde 100644 --- a/gcc/config/mn10300/mn10300.c +++ b/gcc/config/mn10300/mn10300.c @@ -83,6 +83,9 @@ static bool mn10300_pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode, static int mn10300_arg_partial_bytes (CUMULATIVE_ARGS *, enum machine_mode, tree, bool); static unsigned int mn10300_case_values_threshold (void); +static void mn10300_encode_section_info (tree, rtx, int); +static void mn10300_asm_trampoline_template (FILE *); +static void mn10300_trampoline_init (rtx, tree, rtx); /* Initialize the GCC target structure. */ #undef TARGET_ASM_ALIGNED_HI_OP @@ -131,7 +134,11 @@ static unsigned int mn10300_case_values_threshold (void); #undef TARGET_LEGITIMATE_ADDRESS_P #define TARGET_LEGITIMATE_ADDRESS_P mn10300_legitimate_address_p -static void mn10300_encode_section_info (tree, rtx, int); +#undef TARGET_ASM_TRAMPOLINE_TEMPLATE +#define TARGET_ASM_TRAMPOLINE_TEMPLATE mn10300_asm_trampoline_template +#undef TARGET_TRAMPOLINE_INIT +#define TARGET_TRAMPOLINE_INIT mn10300_trampoline_init + struct gcc_target targetm = TARGET_INITIALIZER; /* Implement TARGET_HANDLE_OPTION. */ @@ -2165,3 +2172,36 @@ unsigned int mn10300_case_values_threshold (void) { return 6; } + +/* Worker function for TARGET_ASM_TRAMPOLINE_TEMPLATE. */ + +static void +mn10300_asm_trampoline_template (FILE *f) +{ + fprintf (f, "\tadd -4,sp\n"); + fprintf (f, "\t.long 0x0004fffa\n"); + fprintf (f, "\tmov (0,sp),a0\n"); + fprintf (f, "\tadd 4,sp\n"); + fprintf (f, "\tmov (13,a0),a1\n"); + fprintf (f, "\tmov (17,a0),a0\n"); + fprintf (f, "\tjmp (a0)\n"); + fprintf (f, "\t.long 0\n"); + fprintf (f, "\t.long 0\n"); +} + +/* Worker function for TARGET_TRAMPOLINE_INIT. */ + +static void +mn10300_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value) +{ + rtx fnaddr = XEXP (DECL_RTL (fndecl), 0); + rtx mem; + + emit_block_move (m_tramp, assemble_trampoline_template (), + GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL); + + mem = adjust_address (m_tramp, SImode, 0x14); + emit_move_insn (mem, chain_value); + mem = adjust_address (m_tramp, SImode, 0x18); + emit_move_insn (mem, fnaddr); +} |