diff options
Diffstat (limited to 'gcc/langhooks.c')
| -rw-r--r-- | gcc/langhooks.c | 120 |
1 files changed, 113 insertions, 7 deletions
diff --git a/gcc/langhooks.c b/gcc/langhooks.c index 6b0c5bdba08..a1d60f9ff5e 100644 --- a/gcc/langhooks.c +++ b/gcc/langhooks.c @@ -32,6 +32,8 @@ Boston, MA 02111-1307, USA. */ #include "flags.h" #include "langhooks.h" #include "langhooks-def.h" +#include "ggc.h" +#include "diagnostic.h" /* Do nothing; in many cases the default hook. */ @@ -54,6 +56,16 @@ lhd_do_nothing_i (int i ATTRIBUTE_UNUSED) { } +/* Do nothing (int, int, int). Return NULL_TREE. */ + +tree +lhd_do_nothing_iii_return_null_tree (int i ATTRIBUTE_UNUSED, + int j ATTRIBUTE_UNUSED, + int k ATTRIBUTE_UNUSED) +{ + return NULL_TREE; +} + /* Do nothing (function). */ void @@ -72,6 +84,14 @@ lhd_return_tree (tree t) /* Do nothing (return NULL_TREE). */ tree +lhd_return_null_tree_v (void) +{ + return NULL_TREE; +} + +/* Do nothing (return NULL_TREE). */ + +tree lhd_return_null_tree (tree t ATTRIBUTE_UNUSED) { return NULL_TREE; @@ -136,6 +156,11 @@ lhd_warn_unused_global_decl (tree decl) return true; } +/* Number for making the label on the next + static variable internal to a function. */ + +static GTY(()) int var_labelno; + /* Set the DECL_ASSEMBLER_NAME for DECL. */ void lhd_set_decl_assembler_name (tree decl) @@ -149,12 +174,28 @@ lhd_set_decl_assembler_name (tree decl) && (TREE_STATIC (decl) || DECL_EXTERNAL (decl) || TREE_PUBLIC (decl)))) - /* By default, assume the name to use in assembly code is the - same as that used in the source language. (That's correct - for C, and GCC used to set DECL_ASSEMBLER_NAME to the same - value as DECL_NAME in build_decl, so this choice provides - backwards compatibility with existing front-ends. */ - SET_DECL_ASSEMBLER_NAME (decl, DECL_NAME (decl)); + { + /* By default, assume the name to use in assembly code is the + same as that used in the source language. (That's correct + for C, and GCC used to set DECL_ASSEMBLER_NAME to the same + value as DECL_NAME in build_decl, so this choice provides + backwards compatibility with existing front-ends. + + Can't use just the variable's own name for a variable whose + scope is less than the whole compilation. Concatenate a + distinguishing number. */ + if (!TREE_PUBLIC (decl) && DECL_CONTEXT (decl)) + { + const char *name = IDENTIFIER_POINTER (DECL_NAME (decl)); + char *label; + + ASM_FORMAT_PRIVATE_NAME (label, name, var_labelno); + var_labelno++; + SET_DECL_ASSEMBLER_NAME (decl, get_identifier (label)); + } + else + SET_DECL_ASSEMBLER_NAME (decl, DECL_NAME (decl)); + } else /* Nobody should ever be asking for the DECL_ASSEMBLER_NAME of these DECLs -- unless they're in language-dependent code, in @@ -185,6 +226,13 @@ lhd_type_promotes_to (tree type ATTRIBUTE_UNUSED) abort (); } +/* Registration of machine- or os-specific builtin types. */ +void +lhd_register_builtin_type (tree type ATTRIBUTE_UNUSED, + const char* name ATTRIBUTE_UNUSED) +{ +} + /* Invalid use of an incomplete type. */ void lhd_incomplete_type_error (tree value ATTRIBUTE_UNUSED, tree type) @@ -408,6 +456,14 @@ lhd_expr_size (tree exp) else return size_in_bytes (TREE_TYPE (exp)); } +/* lang_hooks.decl_uninit: Find out if a variable is uninitialized based + on DECL_INITIAL. */ + +bool +lhd_decl_uninit (tree t ATTRIBUTE_UNUSED) +{ + return false; +} /* lang_hooks.tree_size: Determine the size of a tree with code C, which is a language-specific tree code in category 'x'. The @@ -439,7 +495,7 @@ write_global_declarations (void) tree globals = (*lang_hooks.decls.getdecls) (); int len = list_length (globals); - tree *vec = (tree *) xmalloc (sizeof (tree) * len); + tree *vec = xmalloc (sizeof (tree) * len); int i; tree decl; @@ -456,3 +512,53 @@ write_global_declarations (void) /* Clean up. */ free (vec); } + +/* Called to perform language-specific initialization of CTX. */ +void +lhd_initialize_diagnostics (struct diagnostic_context *ctx ATTRIBUTE_UNUSED) +{ +} + +/* The default function to print out name of current function that caused + an error. */ +void +lhd_print_error_function (diagnostic_context *context, const char *file) +{ + if (diagnostic_last_function_changed (context)) + { + const char *old_prefix = context->printer->prefix; + char *new_prefix = file ? file_name_as_prefix (file) : NULL; + + pp_set_prefix (context->printer, new_prefix); + + if (current_function_decl == NULL) + pp_printf (context->printer, "At top level:"); + else + { + if (TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE) + pp_printf + (context->printer, "In member function `%s':", + (*lang_hooks.decl_printable_name) (current_function_decl, 2)); + else + pp_printf + (context->printer, "In function `%s':", + (*lang_hooks.decl_printable_name) (current_function_decl, 2)); + } + pp_newline (context->printer); + + diagnostic_set_last_function (context); + pp_flush (context->printer); + context->printer->prefix = old_prefix; + free ((char*) new_prefix); + } +} + +tree +lhd_callgraph_analyze_expr (tree *tp ATTRIBUTE_UNUSED, + int *walk_subtrees ATTRIBUTE_UNUSED, + tree decl ATTRIBUTE_UNUSED) +{ + return NULL; +} + +#include "gt-langhooks.h" |