/* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
for now. */
/* I/O, string, cleanup, and other random utilities for GDB.
- Copyright (C) 1986-2018 Free Software Foundation, Inc.
+ Copyright (C) 1986-2021 Free Software Foundation, Inc.
This file is part of GDB.
#define UTILS_H
#include "exceptions.h"
-#include "common/scoped_restore.h"
+#include "gdbsupport/array-view.h"
+#include "gdbsupport/scoped_restore.h"
#include <chrono>
-extern void initialize_utils (void);
+#ifdef HAVE_LIBXXHASH
+#include <xxhash.h>
+#endif
+
+struct completion_match_for_lcd;
+class compiled_regex;
/* String utilities. */
-extern int sevenbit_strings;
+extern bool sevenbit_strings;
/* Modes of operation for strncmp_iw_with_mode. */
extern bool streq (const char *, const char *);
-/* A variant of streq that is suitable for use as an htab
- callback. */
-
-extern int streq_hash (const void *, const void *);
-
extern int subset_compare (const char *, const char *);
-int compare_positive_ints (const void *ap, const void *bp);
-
/* Compare C strings for std::sort. */
static inline bool
/* Return the time spent in prompt_for_continue. */
std::chrono::steady_clock::duration get_prompt_for_continue_wait_time ();
\f
-/* Parsing utilites. */
+/* Parsing utilities. */
extern int parse_pid_to_attach (const char *args);
}
/* A constructor that calls buildargv on STR. STR may be NULL, in
- which case this object is initialized with a NULL array. If
- buildargv fails due to out-of-memory, call malloc_failure.
- Therefore, the value is guaranteed to be non-NULL, unless the
- parameter itself is NULL. */
+ which case this object is initialized with a NULL array. */
explicit gdb_argv (const char *str)
: m_argv (NULL)
gdb_argv (const gdb_argv &) = delete;
gdb_argv &operator= (const gdb_argv &) = delete;
+ gdb_argv &operator= (gdb_argv &&other)
+ {
+ freeargv (m_argv);
+ m_argv = other.m_argv;
+ other.m_argv = nullptr;
+ return *this;
+ }
+
+ gdb_argv (gdb_argv &&other)
+ {
+ m_argv = other.m_argv;
+ other.m_argv = nullptr;
+ }
+
~gdb_argv ()
{
freeargv (m_argv);
/* Return the underlying array, transferring ownership to the
caller. */
- char **release ()
+ ATTRIBUTE_UNUSED_RESULT char **release ()
{
char **result = m_argv;
m_argv = NULL;
return m_argv[arg];
}
+ /* Return the arguments array as an array view. */
+
+ gdb::array_view<char *> as_array_view ()
+ {
+ return gdb::array_view<char *> (this->get (), this->count ());
+ }
+
+ /* Append arguments to this array. */
+ void append (gdb_argv &&other)
+ {
+ int size = count ();
+ int argc = other.count ();
+ m_argv = XRESIZEVEC (char *, m_argv, (size + argc + 1));
+
+ for (int argi = 0; argi < argc; argi++)
+ {
+ /* Transfer ownership of the string. */
+ m_argv[size++] = other.m_argv[argi];
+ /* Ensure that destruction of OTHER works correctly. */
+ other.m_argv[argi] = nullptr;
+ }
+ m_argv[size] = nullptr;
+ }
+
+ /* Append arguments to this array. */
+ void append (const gdb_argv &other)
+ {
+ int size = count ();
+ int argc = other.count ();
+ m_argv = XRESIZEVEC (char *, m_argv, (size + argc + 1));
+
+ for (int argi = 0; argi < argc; argi++)
+ m_argv[size++] = xstrdup (other.m_argv[argi]);
+ m_argv[size] = nullptr;
+ }
+
/* The iterator type. */
typedef char **iterator;
/* A unique_ptr wrapper for htab_t. */
typedef std::unique_ptr<htab, htab_deleter> htab_up;
-extern void free_current_contents (void *);
+/* A wrapper for 'delete' that can used as a hash table entry deletion
+ function. */
+template<typename T>
+void
+htab_delete_entry (void *ptr)
+{
+ delete (T *) ptr;
+}
extern void init_page_info (void);
int m_save_batch_flag;
};
-extern struct cleanup *make_bpstat_clear_actions_cleanup (void);
\f
/* Path utilities. */
extern void reinitialize_more_filter (void);
-extern int pagination_enabled;
+/* Return the number of characters in a line. */
+
+extern int get_chars_per_line ();
+
+extern bool pagination_enabled;
extern struct ui_file **current_ui_gdb_stdout_ptr (void);
extern struct ui_file **current_ui_gdb_stdin_ptr (void);
extern struct ui_file **current_ui_gdb_stderr_ptr (void);
extern struct ui_file **current_ui_gdb_stdlog_ptr (void);
+/* Flush STREAM. This is a wrapper for ui_file_flush that also
+ flushes any output pending from uses of the *_filtered output
+ functions; that output is kept in a special buffer so that
+ pagination and styling are handled properly. */
+extern void gdb_flush (struct ui_file *);
+
/* The current top level's ui_file streams. */
/* Normal results */
extern void set_screen_width_and_height (int width, int height);
/* More generic printf like operations. Filtered versions may return
- non-locally on error. */
+ non-locally on error. As an extension over plain printf, these
+ support some GDB-specific format specifiers. Particularly useful
+ here are the styling formatters: '%p[', '%p]' and '%ps'. See
+ ui_out::message for details. */
extern void fputs_filtered (const char *, struct ui_file *);
extern void fprintf_filtered (struct ui_file *, const char *, ...)
ATTRIBUTE_PRINTF (2, 3);
-extern void fprintfi_filtered (int, struct ui_file *, const char *, ...)
- ATTRIBUTE_PRINTF (3, 4);
-
extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
-extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
-
extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list)
/* Return nonzero if filtered printing is initialized. */
extern int filtered_printing_initialized (void);
+/* Like fprintf_filtered, but styles the output according to STYLE,
+ when appropriate. */
+
+extern void fprintf_styled (struct ui_file *stream,
+ const ui_file_style &style,
+ const char *fmt,
+ ...)
+ ATTRIBUTE_PRINTF (3, 4);
+
+extern void vfprintf_styled (struct ui_file *stream,
+ const ui_file_style &style,
+ const char *fmt,
+ va_list args)
+ ATTRIBUTE_PRINTF (3, 0);
+
+/* Like vfprintf_styled, but do not process gdb-specific format
+ specifiers. */
+extern void vfprintf_styled_no_gdbfmt (struct ui_file *stream,
+ const ui_file_style &style,
+ bool filter,
+ const char *fmt, va_list args)
+ ATTRIBUTE_PRINTF (4, 0);
+
+/* Like fputs_filtered, but styles the output according to STYLE, when
+ appropriate. */
+
+extern void fputs_styled (const char *linebuffer,
+ const ui_file_style &style,
+ struct ui_file *stream);
+
+/* Unfiltered variant of fputs_styled. */
+
+extern void fputs_styled_unfiltered (const char *linebuffer,
+ const ui_file_style &style,
+ struct ui_file *stream);
+
+/* Like fputs_styled, but uses highlight_style to highlight the
+ parts of STR that match HIGHLIGHT. */
+
+extern void fputs_highlighted (const char *str, const compiled_regex &highlight,
+ struct ui_file *stream);
+
+/* Reset the terminal style to the default, if needed. */
+
+extern void reset_terminal_style (struct ui_file *stream);
+
/* Display the host ADDR on STREAM formatted as ``0x%x''. */
extern void gdb_print_host_address_1 (const void *addr, struct ui_file *stream);
extern int myread (int, char *, int);
+/* Integer exponentiation: Return V1**V2, where both arguments
+ are integers.
+
+ Requires V1 != 0 if V2 < 0.
+ Returns 1 for 0 ** 0. */
+extern ULONGEST uinteger_pow (ULONGEST v1, LONGEST v2);
+
/* Resource limits used by getrlimit and setrlimit. */
enum resource_limit_kind
extern void dump_core (void);
-/* Return the hex string form of LENGTH bytes of DATA.
- Space for the result is malloc'd, caller must free. */
-
-extern char *make_hex_string (const gdb_byte *data, size_t length);
-
/* Copy NBITS bits from SOURCE to DEST starting at the given bit
offsets. Use the bit order as specified by BITS_BIG_ENDIAN.
Source and destination buffers must not overlap. */
const gdb_byte *source, ULONGEST source_offset,
ULONGEST nbits, int bits_big_endian);
+/* A fast hashing function. This can be used to hash data in a fast way
+ when the length is known. If no fast hashing library is available, falls
+ back to iterative_hash from libiberty. START_VALUE can be set to
+ continue hashing from a previous value. */
+
+static inline unsigned int
+fast_hash (const void *ptr, size_t len, unsigned int start_value = 0)
+{
+#ifdef HAVE_LIBXXHASH
+ return XXH64 (ptr, len, start_value);
+#else
+ return iterative_hash (ptr, len, start_value);
+#endif
+}
+
#endif /* UTILS_H */
projects / deliverable / binutils-gdb.git / blobdiff