diff options
Diffstat (limited to 'gcc/config/vax/vax.c')
| -rw-r--r-- | gcc/config/vax/vax.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gcc/config/vax/vax.c b/gcc/config/vax/vax.c index 5989607be75..82f13da1c99 100644 --- a/gcc/config/vax/vax.c +++ b/gcc/config/vax/vax.c @@ -62,6 +62,7 @@ static void vax_asm_trampoline_template (FILE *); static void vax_trampoline_init (rtx, tree, rtx); static int vax_return_pops_args (tree, tree, int); static bool vax_mode_dependent_address_p (const_rtx, addr_space_t); +static HOST_WIDE_INT vax_starting_frame_offset (void); /* Initialize the GCC target structure. */ #undef TARGET_ASM_ALIGNED_HI_OP @@ -120,6 +121,9 @@ static bool vax_mode_dependent_address_p (const_rtx, addr_space_t); #undef TARGET_OPTION_OVERRIDE #define TARGET_OPTION_OVERRIDE vax_option_override +#undef TARGET_STARTING_FRAME_OFFSET +#define TARGET_STARTING_FRAME_OFFSET vax_starting_frame_offset + struct gcc_target targetm = TARGET_INITIALIZER; /* Set global variables as needed for the options enabled. */ @@ -208,7 +212,7 @@ vax_expand_prologue (void) /* Allocate the local stack frame. */ size = get_frame_size (); - size -= STARTING_FRAME_OFFSET; + size -= vax_starting_frame_offset (); emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, GEN_INT (-size))); @@ -2179,3 +2183,12 @@ vax_function_arg_advance (cumulative_args_t cum_v, machine_mode mode, ? (GET_MODE_SIZE (mode) + 3) & ~3 : (int_size_in_bytes (type) + 3) & ~3); } + +static HOST_WIDE_INT +vax_starting_frame_offset (void) +{ + /* On ELF targets, reserve the top of the stack for exception handler + stackadj value. */ + return TARGET_ELF ? -4 : 0; +} + |