#include "ggc.h"
#include "expr.h"
#include "c-common.h"
+#include "defaults.h"
#include "tm_p.h"
#include "intl.h"
#include "diagnostic.h"
#include "obstack.h"
-
-#if USE_CPPLIB
#include "cpplib.h"
cpp_reader parse_in;
-#endif
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE TYPE_PRECISION (wchar_type_node)
+#ifndef WINT_TYPE
+#define WINT_TYPE "unsigned int"
+#endif
+
+#ifndef INTMAX_TYPE
+#define INTMAX_TYPE ((INT_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \
+ ? "int" \
+ : ((LONG_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \
+ ? "long int" \
+ : "long long int"))
+#endif
+
+#ifndef UINTMAX_TYPE
+#define UINTMAX_TYPE ((INT_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \
+ ? "unsigned int" \
+ : ((LONG_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \
+ ? "long unsigned int" \
+ : "long long unsigned int"))
+#endif
+
/* The following symbols are subsumed in the c_global_trees array, and
listed here individually for documentation purposes.
const char *flag_dump_translation_unit;
+/* Warn about *printf or *scanf format/argument anomalies. */
+
+int warn_format;
+
+/* Warn about Y2K problems with strftime formats. */
+
+int warn_format_y2k;
+
+/* Warn about excess arguments to formats. */
+
+int warn_format_extra_args;
+
+/* Warn about non-literal format arguments. */
+
+int warn_format_nonliteral;
+
/* Nonzero means warn about possible violations of sequence point rules. */
int warn_sequence_point;
va_list ap;
diagnostic_context dc;
- if (status)
- *status = 1;
- else
- {
- VA_START (ap, msgid);
+ VA_START (ap, msgid);
#ifndef ANSI_PROTOTYPES
- status = va_arg (ap, int *);
- msgid = va_arg (ap, const char *);
+ status = va_arg (ap, int *);
+ msgid = va_arg (ap, const char *);
#endif
+ if (status)
+ *status = 1;
+ else
+ {
/* This duplicates the warning function behavior. */
set_diagnostic_context
(&dc, msgid, &ap, input_filename, lineno, /* warn = */ 1);
report_diagnostic (&dc);
-
- va_end (ap);
}
+
+ va_end (ap);
}
/* Variables used by the checking of $ operand number formats. */
/* Functions taking a va_list normally pass a non-literal format
string. These functions typically are declared with
first_arg_num == 0, so avoid warning in those cases. */
- if (info->first_arg_num != 0 && warn_format > 1)
+ if (info->first_arg_num != 0 && warn_format_nonliteral)
status_warning (status, "format not a string literal, argument types not checked");
}
If the format is an empty string, this should be counted similarly to the
case of extra format arguments. */
if (res.number_extra_args > 0 && res.number_non_literal == 0
- && res.number_other == 0)
+ && res.number_other == 0 && warn_format_extra_args)
status_warning (status, "too many arguments for format");
if (res.number_dollar_extra_args > 0 && res.number_non_literal == 0
- && res.number_other == 0)
+ && res.number_other == 0 && warn_format_extra_args)
status_warning (status, "unused arguments in $-style format");
if (res.number_empty > 0 && res.number_non_literal == 0
&& res.number_other == 0)
}
/* Give Y2K warnings. */
- {
- int y2k_level = 0;
- if (strchr (fci->flags2, '4') != 0)
- if (strchr (flag_chars, 'E') != 0)
+ if (warn_format_y2k)
+ {
+ int y2k_level = 0;
+ if (strchr (fci->flags2, '4') != 0)
+ if (strchr (flag_chars, 'E') != 0)
+ y2k_level = 3;
+ else
+ y2k_level = 2;
+ else if (strchr (fci->flags2, '3') != 0)
y2k_level = 3;
- else
+ else if (strchr (fci->flags2, '2') != 0)
y2k_level = 2;
- else if (strchr (fci->flags2, '3') != 0)
- y2k_level = 3;
- else if (strchr (fci->flags2, '2') != 0)
- y2k_level = 2;
- if (y2k_level == 3)
- status_warning (status, "`%%%c' yields only last 2 digits of year in some locales",
- format_char);
- else if (y2k_level == 2)
- status_warning (status, "`%%%c' yields only last 2 digits of year", format_char);
- }
+ if (y2k_level == 3)
+ status_warning (status, "`%%%c' yields only last 2 digits of year in some locales",
+ format_char);
+ else if (y2k_level == 2)
+ status_warning (status, "`%%%c' yields only last 2 digits of year", format_char);
+ }
if (strchr (fci->flags2, '[') != 0)
{
}
}
}
+
+/* Set format warning options according to a -Wformat=n option. */
+
+void
+set_Wformat (setting)
+ int setting;
+{
+ warn_format = setting;
+ warn_format_y2k = setting;
+ warn_format_extra_args = setting;
+ if (setting != 1)
+ warn_format_nonliteral = setting;
+}
\f
/* Print a warning if a constant expression had overflow in folding.
Invoke this function on every expression that the language
return build_binary_op (NE_EXPR, expr, integer_zero_node, 1);
}
\f
-#if !USE_CPPLIB
-/* Read the rest of a #-directive from input stream FINPUT.
- In normal use, the directive name and the white space after it
- have already been read, so they won't be included in the result.
- We allow for the fact that the directive line may contain
- a newline embedded within a character or string literal which forms
- a part of the directive.
-
- The value is a string in a reusable buffer. It remains valid
- only until the next time this function is called.
-
- The terminating character ('\n' or EOF) is left in FINPUT for the
- caller to re-read. */
-
-char *
-get_directive_line (finput)
- register FILE *finput;
-{
- static char *directive_buffer = NULL;
- static unsigned buffer_length = 0;
- register char *p;
- register char *buffer_limit;
- register int looking_for = 0;
- register int char_escaped = 0;
-
- if (buffer_length == 0)
- {
- directive_buffer = (char *)xmalloc (128);
- buffer_length = 128;
- }
-
- buffer_limit = &directive_buffer[buffer_length];
-
- for (p = directive_buffer; ; )
- {
- int c;
-
- /* Make buffer bigger if it is full. */
- if (p >= buffer_limit)
- {
- register unsigned bytes_used = (p - directive_buffer);
-
- buffer_length *= 2;
- directive_buffer
- = (char *)xrealloc (directive_buffer, buffer_length);
- p = &directive_buffer[bytes_used];
- buffer_limit = &directive_buffer[buffer_length];
- }
-
- c = getc (finput);
-
- /* Discard initial whitespace. */
- if ((c == ' ' || c == '\t') && p == directive_buffer)
- continue;
-
- /* Detect the end of the directive. */
- if (looking_for == 0
- && (c == '\n' || c == EOF))
- {
- ungetc (c, finput);
- c = '\0';
- }
-
- *p++ = c;
-
- if (c == 0)
- return directive_buffer;
-
- /* Handle string and character constant syntax. */
- if (looking_for)
- {
- if (looking_for == c && !char_escaped)
- looking_for = 0; /* Found terminator... stop looking. */
- }
- else
- if (c == '\'' || c == '"')
- looking_for = c; /* Don't stop buffering until we see another
- one of these (or an EOF). */
-
- /* Handle backslash. */
- char_escaped = (c == '\\' && ! char_escaped);
- }
-}
-#endif /* USE_CPPLIB */
-\f
/* Make a variant type in the proper way for C/C++, propagating qualifiers
down to the element type of an array. */
tree int_ftype_cptr_cptr_sizet;
tree int_ftype_string_string, string_ftype_ptr_ptr;
tree string_ftype_string_int, string_ftype_string_string;
+ tree string_ftype_string_cstring_sizet, int_ftype_cstring_cstring_sizet;
tree long_ftype_long;
tree longlong_ftype_longlong;
+ tree intmax_ftype_intmax;
/* Either char* or void*. */
tree traditional_ptr_type_node;
/* Either const char* or const void*. */
tree va_list_ref_type_node;
tree va_list_arg_type_node;
+ string_type_node = build_pointer_type (char_type_node);
+ const_string_type_node
+ = build_pointer_type (build_type_variant (char_type_node, 1, 0));
+
+ wint_type_node =
+ TREE_TYPE (identifier_global_value (get_identifier (WINT_TYPE)));
+
+ intmax_type_node =
+ TREE_TYPE (identifier_global_value (get_identifier (INTMAX_TYPE)));
+ uintmax_type_node =
+ TREE_TYPE (identifier_global_value (get_identifier (UINTMAX_TYPE)));
+
+ default_function_type = build_function_type (integer_type_node, NULL_TREE);
+ ptrdiff_type_node
+ = TREE_TYPE (identifier_global_value (get_identifier (PTRDIFF_TYPE)));
+ unsigned_ptrdiff_type_node = unsigned_type (ptrdiff_type_node);
+
pushdecl (build_decl (TYPE_DECL, get_identifier ("__builtin_va_list"),
va_list_type_node));
tree_cons (NULL_TREE, long_long_integer_type_node,
endlink));
+ intmax_ftype_intmax
+ = build_function_type (intmax_type_node,
+ tree_cons (NULL_TREE, intmax_type_node,
+ endlink));
+
int_ftype_cptr_cptr_sizet
= build_function_type (integer_type_node,
tree_cons (NULL_TREE, const_ptr_type_node,
const_string_type_node,
endlink)));
+ /* Prototype for strncpy. */
+ string_ftype_string_cstring_sizet
+ = build_function_type (string_type_node,
+ tree_cons (NULL_TREE, string_type_node,
+ tree_cons (NULL_TREE,
+ const_string_type_node,
+ sizetype_endlink)));
+
traditional_len_type_node = ((flag_traditional &&
c_language != clk_cplusplus)
? integer_type_node : sizetype);
const_string_type_node,
endlink)));
+ /* Prototype for strncmp. */
+ int_ftype_cstring_cstring_sizet
+ = build_function_type (integer_type_node,
+ tree_cons (NULL_TREE, const_string_type_node,
+ tree_cons (NULL_TREE,
+ const_string_type_node,
+ sizetype_endlink)));
+
/* Prototype for strstr, strpbrk, etc. */
string_ftype_string_string
= build_function_type (string_type_node,
BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("__builtin_llabs", longlong_ftype_longlong, BUILT_IN_LLABS,
BUILT_IN_NORMAL, NULL_PTR);
+ builtin_function ("__builtin_imaxabs", intmax_ftype_intmax, BUILT_IN_IMAXABS,
+ BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("__builtin_saveregs", ptr_ftype, BUILT_IN_SAVEREGS,
BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("__builtin_classify_type", default_function_type,
BUILT_IN_INDEX, BUILT_IN_NORMAL, "index");
builtin_function ("__builtin_rindex", string_ftype_string_int,
BUILT_IN_RINDEX, BUILT_IN_NORMAL, "rindex");
- builtin_function ("__builtin_strcmp", int_ftype_string_string,
- BUILT_IN_STRCMP, BUILT_IN_NORMAL, "strcmp");
+ built_in_decls[BUILT_IN_STRCMP] =
+ builtin_function ("__builtin_strcmp", int_ftype_string_string,
+ BUILT_IN_STRCMP, BUILT_IN_NORMAL, "strcmp");
+ builtin_function ("__builtin_strncmp", int_ftype_cstring_cstring_sizet,
+ BUILT_IN_STRNCMP, BUILT_IN_NORMAL, "strncmp");
builtin_function ("__builtin_strstr", string_ftype_string_string,
BUILT_IN_STRSTR, BUILT_IN_NORMAL, "strstr");
builtin_function ("__builtin_strpbrk", string_ftype_string_string,
BUILT_IN_STRRCHR, BUILT_IN_NORMAL, "strrchr");
builtin_function ("__builtin_strcpy", string_ftype_ptr_ptr,
BUILT_IN_STRCPY, BUILT_IN_NORMAL, "strcpy");
+ builtin_function ("__builtin_strncpy", string_ftype_string_cstring_sizet,
+ BUILT_IN_STRNCPY, BUILT_IN_NORMAL, "strncpy");
builtin_function ("__builtin_strlen", strlen_ftype,
BUILT_IN_STRLEN, BUILT_IN_NORMAL, "strlen");
builtin_function ("__builtin_sqrtf", float_ftype_float,
builtin_function ("labs", long_ftype_long, BUILT_IN_LABS,
BUILT_IN_NORMAL, NULL_PTR);
if (flag_isoc99 || ! flag_no_nonansi_builtin)
- builtin_function ("llabs", longlong_ftype_longlong, BUILT_IN_LLABS,
- BUILT_IN_NORMAL, NULL_PTR);
+ {
+ builtin_function ("llabs", longlong_ftype_longlong, BUILT_IN_LLABS,
+ BUILT_IN_NORMAL, NULL_PTR);
+ builtin_function ("imaxabs", intmax_ftype_intmax, BUILT_IN_IMAXABS,
+ BUILT_IN_NORMAL, NULL_PTR);
+ }
builtin_function ("memcpy", memcpy_ftype, BUILT_IN_MEMCPY,
BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("memcmp", int_ftype_cptr_cptr_sizet, BUILT_IN_MEMCMP,
BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("strcmp", int_ftype_string_string, BUILT_IN_STRCMP,
BUILT_IN_NORMAL, NULL_PTR);
+ builtin_function ("strncmp", int_ftype_cstring_cstring_sizet,
+ BUILT_IN_STRNCMP, BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("strstr", string_ftype_string_string, BUILT_IN_STRSTR,
BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("strchr", string_ftype_string_int, BUILT_IN_STRCHR,
BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("strcpy", string_ftype_ptr_ptr, BUILT_IN_STRCPY,
BUILT_IN_NORMAL, NULL_PTR);
+ builtin_function ("strncpy", string_ftype_string_cstring_sizet,
+ BUILT_IN_STRNCPY, BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("strlen", strlen_ftype, BUILT_IN_STRLEN,
BUILT_IN_NORMAL, NULL_PTR);
builtin_function ("sqrtf", float_ftype_float, BUILT_IN_FSQRT,
case BUILT_IN_ABS:
case BUILT_IN_LABS:
case BUILT_IN_LLABS:
+ case BUILT_IN_IMAXABS:
case BUILT_IN_FABS:
if (coerced_params == 0)
return integer_zero_node;
projects / platform / upstream / gcc.git / blobdiff