1 //===-- Stream.cpp ----------------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "lldb/Utility/Stream.h"
12 #include "lldb/Utility/Endian.h"
13 #include "lldb/Utility/VASPrintf.h"
14 #include "llvm/ADT/SmallString.h"
15 #include "llvm/Support/LEB128.h"
23 using namespace lldb_private;
25 Stream::Stream(uint32_t flags, uint32_t addr_size, ByteOrder byte_order)
26 : m_flags(flags), m_addr_size(addr_size), m_byte_order(byte_order),
27 m_indent_level(0), m_forwarder(*this) {}
30 : m_flags(0), m_addr_size(4), m_byte_order(endian::InlHostByteOrder()),
31 m_indent_level(0), m_forwarder(*this) {}
33 //------------------------------------------------------------------
35 //------------------------------------------------------------------
38 ByteOrder Stream::SetByteOrder(ByteOrder byte_order) {
39 ByteOrder old_byte_order = m_byte_order;
40 m_byte_order = byte_order;
41 return old_byte_order;
44 //------------------------------------------------------------------
45 // Put an offset "uval" out to the stream using the printf format in "format".
46 //------------------------------------------------------------------
47 void Stream::Offset(uint32_t uval, const char *format) { Printf(format, uval); }
49 //------------------------------------------------------------------
50 // Put an SLEB128 "uval" out to the stream using the printf format in "format".
51 //------------------------------------------------------------------
52 size_t Stream::PutSLEB128(int64_t sval) {
53 if (m_flags.Test(eBinary))
54 return llvm::encodeSLEB128(sval, m_forwarder);
56 return Printf("0x%" PRIi64, sval);
59 //------------------------------------------------------------------
60 // Put an ULEB128 "uval" out to the stream using the printf format in "format".
61 //------------------------------------------------------------------
62 size_t Stream::PutULEB128(uint64_t uval) {
63 if (m_flags.Test(eBinary))
64 return llvm::encodeULEB128(uval, m_forwarder);
66 return Printf("0x%" PRIx64, uval);
69 //------------------------------------------------------------------
70 // Print a raw NULL terminated C string to the stream.
71 //------------------------------------------------------------------
72 size_t Stream::PutCString(llvm::StringRef str) {
73 size_t bytes_written = 0;
74 bytes_written = Write(str.data(), str.size());
76 // when in binary mode, emit the NULL terminator
77 if (m_flags.Test(eBinary))
78 bytes_written += PutChar('\0');
82 //------------------------------------------------------------------
83 // Print a double quoted NULL terminated C string to the stream using the
84 // printf format in "format".
85 //------------------------------------------------------------------
86 void Stream::QuotedCString(const char *cstr, const char *format) {
90 //------------------------------------------------------------------
91 // Put an address "addr" out to the stream with optional prefix and suffix
93 //------------------------------------------------------------------
94 void Stream::Address(uint64_t addr, uint32_t addr_size, const char *prefix,
96 if (prefix == nullptr)
98 if (suffix == nullptr)
100 // int addr_width = m_addr_size << 1;
101 // Printf ("%s0x%0*" PRIx64 "%s", prefix, addr_width, addr, suffix);
102 Printf("%s0x%0*" PRIx64 "%s", prefix, addr_size * 2, (uint64_t)addr, suffix);
105 //------------------------------------------------------------------
106 // Put an address range out to the stream with optional prefix and suffix
108 //------------------------------------------------------------------
109 void Stream::AddressRange(uint64_t lo_addr, uint64_t hi_addr,
110 uint32_t addr_size, const char *prefix,
111 const char *suffix) {
112 if (prefix && prefix[0])
114 Address(lo_addr, addr_size, "[");
115 Address(hi_addr, addr_size, "-", ")");
116 if (suffix && suffix[0])
120 size_t Stream::PutChar(char ch) { return Write(&ch, 1); }
122 //------------------------------------------------------------------
123 // Print some formatted output to the stream.
124 //------------------------------------------------------------------
125 size_t Stream::Printf(const char *format, ...) {
127 va_start(args, format);
128 size_t result = PrintfVarArg(format, args);
133 //------------------------------------------------------------------
134 // Print some formatted output to the stream.
135 //------------------------------------------------------------------
136 size_t Stream::PrintfVarArg(const char *format, va_list args) {
137 llvm::SmallString<1024> buf;
138 VASprintf(buf, format, args);
140 // Include the NULL termination byte for binary output
141 size_t length = buf.size();
142 if (m_flags.Test(eBinary))
144 return Write(buf.c_str(), length);
147 //------------------------------------------------------------------
148 // Print and End of Line character to the stream
149 //------------------------------------------------------------------
150 size_t Stream::EOL() { return PutChar('\n'); }
152 //------------------------------------------------------------------
153 // Indent the current line using the current indentation level and print an
154 // optional string following the indentation spaces.
155 //------------------------------------------------------------------
156 size_t Stream::Indent(const char *s) {
157 return Printf("%*.*s%s", m_indent_level, m_indent_level, "", s ? s : "");
160 size_t Stream::Indent(llvm::StringRef str) {
161 return Printf("%*.*s%s", m_indent_level, m_indent_level, "",
165 //------------------------------------------------------------------
166 // Stream a character "ch" out to this stream.
167 //------------------------------------------------------------------
168 Stream &Stream::operator<<(char ch) {
173 //------------------------------------------------------------------
174 // Stream the NULL terminated C string out to this stream.
175 //------------------------------------------------------------------
176 Stream &Stream::operator<<(const char *s) {
181 Stream &Stream::operator<<(llvm::StringRef str) {
182 Write(str.data(), str.size());
186 //------------------------------------------------------------------
187 // Stream the pointer value out to this stream.
188 //------------------------------------------------------------------
189 Stream &Stream::operator<<(const void *p) {
190 Printf("0x%.*tx", (int)sizeof(const void *) * 2, (ptrdiff_t)p);
194 //------------------------------------------------------------------
195 // Stream a uint8_t "uval" out to this stream.
196 //------------------------------------------------------------------
197 Stream &Stream::operator<<(uint8_t uval) {
202 //------------------------------------------------------------------
203 // Stream a uint16_t "uval" out to this stream.
204 //------------------------------------------------------------------
205 Stream &Stream::operator<<(uint16_t uval) {
206 PutHex16(uval, m_byte_order);
210 //------------------------------------------------------------------
211 // Stream a uint32_t "uval" out to this stream.
212 //------------------------------------------------------------------
213 Stream &Stream::operator<<(uint32_t uval) {
214 PutHex32(uval, m_byte_order);
218 //------------------------------------------------------------------
219 // Stream a uint64_t "uval" out to this stream.
220 //------------------------------------------------------------------
221 Stream &Stream::operator<<(uint64_t uval) {
222 PutHex64(uval, m_byte_order);
226 //------------------------------------------------------------------
227 // Stream a int8_t "sval" out to this stream.
228 //------------------------------------------------------------------
229 Stream &Stream::operator<<(int8_t sval) {
230 Printf("%i", (int)sval);
234 //------------------------------------------------------------------
235 // Stream a int16_t "sval" out to this stream.
236 //------------------------------------------------------------------
237 Stream &Stream::operator<<(int16_t sval) {
238 Printf("%i", (int)sval);
242 //------------------------------------------------------------------
243 // Stream a int32_t "sval" out to this stream.
244 //------------------------------------------------------------------
245 Stream &Stream::operator<<(int32_t sval) {
246 Printf("%i", (int)sval);
250 //------------------------------------------------------------------
251 // Stream a int64_t "sval" out to this stream.
252 //------------------------------------------------------------------
253 Stream &Stream::operator<<(int64_t sval) {
254 Printf("%" PRIi64, sval);
258 //------------------------------------------------------------------
259 // Get the current indentation level
260 //------------------------------------------------------------------
261 int Stream::GetIndentLevel() const { return m_indent_level; }
263 //------------------------------------------------------------------
264 // Set the current indentation level
265 //------------------------------------------------------------------
266 void Stream::SetIndentLevel(int indent_level) { m_indent_level = indent_level; }
268 //------------------------------------------------------------------
269 // Increment the current indentation level
270 //------------------------------------------------------------------
271 void Stream::IndentMore(int amount) { m_indent_level += amount; }
273 //------------------------------------------------------------------
274 // Decrement the current indentation level
275 //------------------------------------------------------------------
276 void Stream::IndentLess(int amount) {
277 if (m_indent_level >= amount)
278 m_indent_level -= amount;
283 //------------------------------------------------------------------
284 // Get the address size in bytes
285 //------------------------------------------------------------------
286 uint32_t Stream::GetAddressByteSize() const { return m_addr_size; }
288 //------------------------------------------------------------------
289 // Set the address size in bytes
290 //------------------------------------------------------------------
291 void Stream::SetAddressByteSize(uint32_t addr_size) { m_addr_size = addr_size; }
293 //------------------------------------------------------------------
294 // The flags get accessor
295 //------------------------------------------------------------------
296 Flags &Stream::GetFlags() { return m_flags; }
298 //------------------------------------------------------------------
299 // The flags const get accessor
300 //------------------------------------------------------------------
301 const Flags &Stream::GetFlags() const { return m_flags; }
303 //------------------------------------------------------------------
304 // The byte order get accessor
305 //------------------------------------------------------------------
307 lldb::ByteOrder Stream::GetByteOrder() const { return m_byte_order; }
309 size_t Stream::PrintfAsRawHex8(const char *format, ...) {
311 va_start(args, format);
313 llvm::SmallString<1024> buf;
314 VASprintf(buf, format, args);
316 ByteDelta delta(*this);
325 size_t Stream::PutNHex8(size_t n, uint8_t uvalue) {
326 ByteDelta delta(*this);
327 for (size_t i = 0; i < n; ++i)
328 _PutHex8(uvalue, false);
332 void Stream::_PutHex8(uint8_t uvalue, bool add_prefix) {
333 if (m_flags.Test(eBinary)) {
339 static char g_hex_to_ascii_hex_char[16] = {'0', '1', '2', '3', '4', '5',
340 '6', '7', '8', '9', 'a', 'b',
342 char nibble_chars[2];
343 nibble_chars[0] = g_hex_to_ascii_hex_char[(uvalue >> 4) & 0xf];
344 nibble_chars[1] = g_hex_to_ascii_hex_char[(uvalue >> 0) & 0xf];
345 Write(nibble_chars, sizeof(nibble_chars));
349 size_t Stream::PutHex8(uint8_t uvalue) {
350 ByteDelta delta(*this);
351 _PutHex8(uvalue, false);
355 size_t Stream::PutHex16(uint16_t uvalue, ByteOrder byte_order) {
356 ByteDelta delta(*this);
358 if (byte_order == eByteOrderInvalid)
359 byte_order = m_byte_order;
361 if (byte_order == eByteOrderLittle) {
362 for (size_t byte = 0; byte < sizeof(uvalue); ++byte)
363 _PutHex8((uint8_t)(uvalue >> (byte * 8)), false);
365 for (size_t byte = sizeof(uvalue) - 1; byte < sizeof(uvalue); --byte)
366 _PutHex8((uint8_t)(uvalue >> (byte * 8)), false);
371 size_t Stream::PutHex32(uint32_t uvalue, ByteOrder byte_order) {
372 ByteDelta delta(*this);
374 if (byte_order == eByteOrderInvalid)
375 byte_order = m_byte_order;
377 if (byte_order == eByteOrderLittle) {
378 for (size_t byte = 0; byte < sizeof(uvalue); ++byte)
379 _PutHex8((uint8_t)(uvalue >> (byte * 8)), false);
381 for (size_t byte = sizeof(uvalue) - 1; byte < sizeof(uvalue); --byte)
382 _PutHex8((uint8_t)(uvalue >> (byte * 8)), false);
387 size_t Stream::PutHex64(uint64_t uvalue, ByteOrder byte_order) {
388 ByteDelta delta(*this);
390 if (byte_order == eByteOrderInvalid)
391 byte_order = m_byte_order;
393 if (byte_order == eByteOrderLittle) {
394 for (size_t byte = 0; byte < sizeof(uvalue); ++byte)
395 _PutHex8((uint8_t)(uvalue >> (byte * 8)), false);
397 for (size_t byte = sizeof(uvalue) - 1; byte < sizeof(uvalue); --byte)
398 _PutHex8((uint8_t)(uvalue >> (byte * 8)), false);
403 size_t Stream::PutMaxHex64(uint64_t uvalue, size_t byte_size,
404 lldb::ByteOrder byte_order) {
407 return PutHex8((uint8_t)uvalue);
409 return PutHex16((uint16_t)uvalue, byte_order);
411 return PutHex32((uint32_t)uvalue, byte_order);
413 return PutHex64(uvalue, byte_order);
418 size_t Stream::PutPointer(void *ptr) {
419 return PutRawBytes(&ptr, sizeof(ptr), endian::InlHostByteOrder(),
420 endian::InlHostByteOrder());
423 size_t Stream::PutFloat(float f, ByteOrder byte_order) {
424 if (byte_order == eByteOrderInvalid)
425 byte_order = m_byte_order;
427 return PutRawBytes(&f, sizeof(f), endian::InlHostByteOrder(), byte_order);
430 size_t Stream::PutDouble(double d, ByteOrder byte_order) {
431 if (byte_order == eByteOrderInvalid)
432 byte_order = m_byte_order;
434 return PutRawBytes(&d, sizeof(d), endian::InlHostByteOrder(), byte_order);
437 size_t Stream::PutLongDouble(long double ld, ByteOrder byte_order) {
438 if (byte_order == eByteOrderInvalid)
439 byte_order = m_byte_order;
441 return PutRawBytes(&ld, sizeof(ld), endian::InlHostByteOrder(), byte_order);
444 size_t Stream::PutRawBytes(const void *s, size_t src_len,
445 ByteOrder src_byte_order, ByteOrder dst_byte_order) {
446 ByteDelta delta(*this);
448 if (src_byte_order == eByteOrderInvalid)
449 src_byte_order = m_byte_order;
451 if (dst_byte_order == eByteOrderInvalid)
452 dst_byte_order = m_byte_order;
454 const uint8_t *src = (const uint8_t *)s;
455 bool binary_was_set = m_flags.Test(eBinary);
457 m_flags.Set(eBinary);
458 if (src_byte_order == dst_byte_order) {
459 for (size_t i = 0; i < src_len; ++i)
460 _PutHex8(src[i], false);
462 for (size_t i = src_len - 1; i < src_len; --i)
463 _PutHex8(src[i], false);
466 m_flags.Clear(eBinary);
471 size_t Stream::PutBytesAsRawHex8(const void *s, size_t src_len,
472 ByteOrder src_byte_order,
473 ByteOrder dst_byte_order) {
474 ByteDelta delta(*this);
475 if (src_byte_order == eByteOrderInvalid)
476 src_byte_order = m_byte_order;
478 if (dst_byte_order == eByteOrderInvalid)
479 dst_byte_order = m_byte_order;
481 const uint8_t *src = (const uint8_t *)s;
482 bool binary_is_set = m_flags.Test(eBinary);
483 m_flags.Clear(eBinary);
484 if (src_byte_order == dst_byte_order) {
485 for (size_t i = 0; i < src_len; ++i)
486 _PutHex8(src[i], false);
488 for (size_t i = src_len - 1; i < src_len; --i)
489 _PutHex8(src[i], false);
492 m_flags.Set(eBinary);
497 size_t Stream::PutCStringAsRawHex8(const char *s) {
498 ByteDelta delta(*this);
499 bool binary_is_set = m_flags.Test(eBinary);
500 m_flags.Clear(eBinary);
506 m_flags.Set(eBinary);