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-rw-r--r--stdio-common/vfprintf.c108
1 files changed, 69 insertions, 39 deletions
diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c
index 5d5bb5e578..38ba8ffdcd 100644
--- a/stdio-common/vfprintf.c
+++ b/stdio-common/vfprintf.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1991-2002, 2003, 2004, 2005, 2006, 2007, 2008
- Free Software Foundation, Inc.
+/* Copyright (C) 1991-2008, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -239,7 +238,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
/* This table maps a character into a number representing a
class. In each step there is a destination label for each
class. */
- static const int jump_table[] =
+ static const uint8_t jump_table[] =
{
/* ' ' */ 1, 0, 0, /* '#' */ 4,
0, /* '%' */ 14, 0, /* '\''*/ 6,
@@ -1631,6 +1630,7 @@ do_positional:
size_t nargs = 0;
int *args_type;
union printf_arg *args_value = NULL;
+ int *args_size;
/* Positional parameters refer to arguments directly. This could
also determine the maximum number of arguments. Track the
@@ -1663,24 +1663,10 @@ do_positional:
{
/* Extend the array of format specifiers. */
struct printf_spec *old = specs;
+ specs = extend_alloca (specs, nspecs_max, 2 * nspecs_max);
- nspecs_max *= 2;
- specs = alloca (nspecs_max * sizeof (struct printf_spec));
-
- if (specs == &old[nspecs])
- /* Stack grows up, OLD was the last thing allocated;
- extend it. */
- nspecs_max += nspecs_max / 2;
- else
- {
- /* Copy the old array's elements to the new space. */
- memcpy (specs, old, nspecs * sizeof (struct printf_spec));
- if (old == &specs[nspecs])
- /* Stack grows down, OLD was just below the new
- SPECS. We can use that space when the new space
- runs out. */
- nspecs_max += nspecs_max / 2;
- }
+ /* Copy the old array's elements to the new space. */
+ memmove (specs, old, nspecs * sizeof (struct printf_spec));
}
/* Parse the format specifier. */
@@ -1699,6 +1685,7 @@ do_positional:
memset (args_type, s->_flags2 & _IO_FLAGS2_FORTIFY ? '\xff' : '\0',
nargs * sizeof (int));
args_value = alloca (nargs * sizeof (union printf_arg));
+ args_size = alloca (nargs * sizeof (int));
/* XXX Could do sanity check here: If any element in ARGS_TYPE is
still zero after this loop, format is invalid. For now we
@@ -1719,8 +1706,10 @@ do_positional:
{
case 0: /* No arguments. */
break;
- case 1: /* One argument; we already have the type. */
+ case 1: /* One argument; we already have the
+ type and size. */
args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
+ args_size[specs[cnt].data_arg] = specs[cnt].size;
break;
default:
/* We have more than one argument for this format spec.
@@ -1728,7 +1717,8 @@ do_positional:
all the types. */
(void) (*__printf_arginfo_table[specs[cnt].info.spec])
(&specs[cnt].info,
- specs[cnt].ndata_args, &args_type[specs[cnt].data_arg]);
+ specs[cnt].ndata_args, &args_type[specs[cnt].data_arg],
+ &args_size[specs[cnt].data_arg]);
break;
}
}
@@ -1743,13 +1733,21 @@ do_positional:
args_value[cnt].mem = va_arg (ap_save, type); \
break
- T (PA_CHAR, pa_int, int); /* Promoted. */
T (PA_WCHAR, pa_wchar, wint_t);
- T (PA_INT|PA_FLAG_SHORT, pa_int, int); /* Promoted. */
+ case PA_CHAR: /* Promoted. */
+ case PA_INT|PA_FLAG_SHORT: /* Promoted. */
+#if LONG_MAX == INT_MAX
+ case PA_INT|PA_FLAG_LONG:
+#endif
T (PA_INT, pa_int, int);
- T (PA_INT|PA_FLAG_LONG, pa_long_int, long int);
+#if LONG_MAX == LONG_LONG_MAX
+ case PA_INT|PA_FLAG_LONG:
+#endif
T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
- T (PA_FLOAT, pa_double, double); /* Promoted. */
+#if LONG_MAX != INT_MAX && LONG_MAX != LONG_LONG_MAX
+# error "he?"
+#endif
+ case PA_FLOAT: /* Promoted. */
T (PA_DOUBLE, pa_double, double);
case PA_DOUBLE|PA_FLAG_LONG_DOUBLE:
if (__ldbl_is_dbl)
@@ -1760,13 +1758,20 @@ do_positional:
else
args_value[cnt].pa_long_double = va_arg (ap_save, long double);
break;
- T (PA_STRING, pa_string, const char *);
- T (PA_WSTRING, pa_wstring, const wchar_t *);
+ case PA_STRING: /* All pointers are the same */
+ case PA_WSTRING: /* All pointers are the same */
T (PA_POINTER, pa_pointer, void *);
#undef T
default:
if ((args_type[cnt] & PA_FLAG_PTR) != 0)
args_value[cnt].pa_pointer = va_arg (ap_save, void *);
+ else if (__builtin_expect (__printf_va_arg_table != NULL, 0)
+ && __printf_va_arg_table[args_type[cnt] - PA_LAST] != NULL)
+ {
+ args_value[cnt].pa_user = alloca (args_size[cnt]);
+ (*__printf_va_arg_table[args_type[cnt] - PA_LAST])
+ (args_value[cnt].pa_user, &ap_save);
+ }
else
args_value[cnt].pa_long_double = 0.0;
break;
@@ -1870,6 +1875,40 @@ do_positional:
/* Process format specifiers. */
while (1)
{
+ extern printf_function **__printf_function_table;
+ int function_done;
+
+ if (spec <= UCHAR_MAX
+ && __printf_function_table != NULL
+ && __printf_function_table[(size_t) spec] != NULL)
+ {
+ const void **ptr = alloca (specs[nspecs_done].ndata_args
+ * sizeof (const void *));
+
+ /* Fill in an array of pointers to the argument values. */
+ for (unsigned int i = 0; i < specs[nspecs_done].ndata_args;
+ ++i)
+ ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
+
+ /* Call the function. */
+ function_done = __printf_function_table[(size_t) spec]
+ (s, &specs[nspecs_done].info, ptr);
+
+ if (function_done != -2)
+ {
+ /* If an error occurred we don't have information
+ about # of chars. */
+ if (function_done < 0)
+ {
+ done = -1;
+ goto all_done;
+ }
+
+ done_add (function_done);
+ break;
+ }
+ }
+
JUMP (spec, step4_jumps);
process_arg ((&specs[nspecs_done]));
@@ -1877,19 +1916,9 @@ do_positional:
LABEL (form_unknown):
{
- extern printf_function **__printf_function_table;
- int function_done;
- printf_function *function;
unsigned int i;
const void **ptr;
- function =
- (__printf_function_table == NULL ? NULL :
- __printf_function_table[specs[nspecs_done].info.spec]);
-
- if (function == NULL)
- function = &printf_unknown;
-
ptr = alloca (specs[nspecs_done].ndata_args
* sizeof (const void *));
@@ -1898,7 +1927,8 @@ do_positional:
ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
/* Call the function. */
- function_done = (*function) (s, &specs[nspecs_done].info, ptr);
+ function_done = printf_unknown (s, &specs[nspecs_done].info,
+ ptr);
/* If an error occurred we don't have information about #
of chars. */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-28 15:03:59 +0000