diff options
Diffstat (limited to 'gcc/config/ip2k/ip2k.c')
| -rw-r--r-- | gcc/config/ip2k/ip2k.c | 111 |
1 files changed, 75 insertions, 36 deletions
diff --git a/gcc/config/ip2k/ip2k.c b/gcc/config/ip2k/ip2k.c index c0a643ae1d1..fa543205fc9 100644 --- a/gcc/config/ip2k/ip2k.c +++ b/gcc/config/ip2k/ip2k.c @@ -1,6 +1,6 @@ /* Subroutines used for code generation on Ubicom IP2022 Communications Controller. - Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. + Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc. Contributed by Red Hat, Inc and Ubicom, Inc. This file is part of GNU CC. @@ -72,6 +72,11 @@ static void mdr_try_wreg_elim PARAMS ((rtx)); static int ip2k_check_can_adjust_stack_ref PARAMS ((rtx, int)); static void ip2k_adjust_stack_ref PARAMS ((rtx *, int)); static int ip2k_xexp_not_uses_reg_for_mem PARAMS ((rtx, unsigned int)); +static tree ip2k_handle_progmem_attribute PARAMS ((tree *, tree, tree, int, + bool *)); +static tree ip2k_handle_fndecl_attribute PARAMS ((tree *, tree, tree, int, + bool *)); +const struct attribute_spec ip2k_attribute_table[]; /* Initialize the GCC target structure. */ @@ -90,6 +95,9 @@ static int ip2k_xexp_not_uses_reg_for_mem PARAMS ((rtx, unsigned int)); #undef TARGET_ENCODE_SECTION_INFO #define TARGET_ENCODE_SECTION_INFO encode_section_info +#undef TARGET_ATTRIBUTE_TABLE +#define TARGET_ATTRIBUTE_TABLE ip2k_attribute_table + struct gcc_target targetm = TARGET_INITIALIZER; /* Commands in the functions prologues in the compiled file. */ @@ -3143,51 +3151,82 @@ class_likely_spilled_p(c) || c == PTR_REGS); } -/* Only `progmem' attribute valid for type. */ +/* Valid attributes: + progmem - put data to program memory; + naked - don't generate function prologue/epilogue and `ret' command. -int -valid_machine_type_attribute(type, attributes, identifier, args) - tree type ATTRIBUTE_UNUSED; - tree attributes ATTRIBUTE_UNUSED; - tree identifier; - tree args ATTRIBUTE_UNUSED; -{ - return is_attribute_p ("progmem", identifier); -} + Only `progmem' attribute valid for type. */ -/* If IDENTIFIER with arguments ARGS is a valid machine specific - attribute for DECL return 1. - Valid attributes: - progmem - put data to program memory; - naked - don't generate function prologue/epilogue and `ret' command. */ +const struct attribute_spec ip2k_attribute_table[] = +{ + /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ + { "progmem", 0, 0, false, false, false, ip2k_handle_progmem_attribute }, + { "naked", 0, 0, true, false, false, ip2k_handle_fndecl_attribute }, + { NULL, 0, 0, false, false, false, NULL } +}; -int -valid_machine_decl_attribute (decl, attributes, attr, args) - tree decl; - tree attributes ATTRIBUTE_UNUSED; - tree attr; +/* Handle a "progmem" attribute; arguments as in + struct attribute_spec.handler. */ +static tree +ip2k_handle_progmem_attribute (node, name, args, flags, no_add_attrs) + tree *node; + tree name; tree args ATTRIBUTE_UNUSED; + int flags ATTRIBUTE_UNUSED; + bool *no_add_attrs; { - if (is_attribute_p ("naked", attr)) - return TREE_CODE (decl) == FUNCTION_DECL; - - if (is_attribute_p ("progmem", attr) - && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) + if (DECL_P (*node)) { - /* Data stored in program RAM or FLASH must be word aligned or - it won't be directly addressable. */ - if (DECL_ALIGN (decl) < FUNCTION_BOUNDARY) - DECL_ALIGN (decl) = FUNCTION_BOUNDARY; + if (TREE_CODE (*node) == TYPE_DECL) + { + /* This is really a decl attribute, not a type attribute, + but try to handle it for GCC 3.0 backwards compatibility. */ + + tree type = TREE_TYPE (*node); + tree attr = tree_cons (name, args, TYPE_ATTRIBUTES (type)); + tree newtype = build_type_attribute_variant (type, attr); - if (DECL_INITIAL (decl) == NULL_TREE) + TYPE_MAIN_VARIANT (newtype) = TYPE_MAIN_VARIANT (type); + TREE_TYPE (*node) = newtype; + *no_add_attrs = true; + } + else if (TREE_STATIC (*node) || DECL_EXTERNAL (*node)) { - warning ("Only initialized variables can be placed into " - "program memory area."); - return 0; + if (DECL_INITIAL (*node) == NULL_TREE && !DECL_EXTERNAL (*node)) + { + warning ("only initialized variables can be placed into " + "program memory area"); + *no_add_attrs = true; + } + } + else + { + warning ("`%s' attribute ignored", IDENTIFIER_POINTER (name)); + *no_add_attrs = true; } - return 1; } - return 0; + + return NULL_TREE; +} + +/* Handle an attribute requiring a FUNCTION_DECL; arguments as in + struct attribute_spec.handler. */ +static tree +ip2k_handle_fndecl_attribute (node, name, args, flags, no_add_attrs) + tree *node; + tree name; + tree args ATTRIBUTE_UNUSED; + int flags ATTRIBUTE_UNUSED; + bool *no_add_attrs; +{ + if (TREE_CODE (*node) != FUNCTION_DECL) + { + warning ("`%s' attribute only applies to functions", + IDENTIFIER_POINTER (name)); + *no_add_attrs = true; + } + + return NULL_TREE; } /* Encode section information about tree DECL. */ |