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      1 /* -*- mesa-c++  -*-
      2  *
      3  * Copyright (c) 2019 Collabora LTD
      4  *
      5  * Author: Gert Wollny <gert.wollny (at) collabora.com>
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the "Software"),
      9  * to deal in the Software without restriction, including without limitation
     10  * on the rights to use, copy, modify, merge, publish, distribute, sub
     11  * license, and/or sell copies of the Software, and to permit persons to whom
     12  * the Software is furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the next
     15  * paragraph) shall be included in all copies or substantial portions of the
     16  * Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     21  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     25  */
     26 
     27 #include "util/u_debug.h"
     28 #include "sfn_debug.h"
     29 
     30 namespace r600 {
     31 
     32 class stderr_streambuf : public std::streambuf
     33 {
     34 public:
     35    stderr_streambuf();
     36 protected:
     37    int sync();
     38    int overflow(int c);
     39    std::streamsize xsputn ( const char *s, std::streamsize n );
     40 };
     41 
     42 stderr_streambuf::stderr_streambuf()
     43 {
     44 
     45 }
     46 
     47 int stderr_streambuf::sync()
     48 {
     49    fflush(stderr);
     50    return 0;
     51 }
     52 
     53 int stderr_streambuf::overflow(int c)
     54 {
     55    fputc(c, stderr);
     56    return 0;
     57 }
     58 
     59 static const struct debug_named_value sfn_debug_options[] = {
     60    {"instr", SfnLog::instr, "Log all consumed nir instructions"},
     61    {"ir", SfnLog::r600ir, "Log created R600 IR"},
     62    {"cc", SfnLog::cc, "Log R600 IR to assembly code creation"},
     63    {"noerr", SfnLog::err, "Don't log shader conversion errors"},
     64    {"si", SfnLog::shader_info, "Log shader info (non-zero values)"},
     65    {"ts", SfnLog::test_shader, "Log shaders in tests"},
     66    {"reg", SfnLog::reg, "Log register allocation and lookup"},
     67    {"io", SfnLog::io, "Log shader in and output"},
     68    {"ass", SfnLog::assembly, "Log IR to assembly conversion"},
     69    {"flow", SfnLog::flow, "Log Flow instructions"},
     70    {"merge", SfnLog::merge, "Log register merge operations"},
     71    {"nomerge", SfnLog::nomerge, "Skip register merge step"},
     72    {"tex", SfnLog::tex, "Log texture ops"},
     73    {"trans", SfnLog::trans, "Log generic translation messages"},
     74    DEBUG_NAMED_VALUE_END
     75 };
     76 
     77 SfnLog sfn_log;
     78 
     79 std::streamsize stderr_streambuf::xsputn ( const char *s, std::streamsize n )
     80 {
     81    std::streamsize i = n;
     82    while (i--)
     83       fputc(*s++, stderr);
     84    return n;
     85 }
     86 
     87 SfnLog::SfnLog():
     88    m_active_log_flags(0),
     89    m_log_mask(0),
     90    m_output(new stderr_streambuf())
     91 {
     92    m_log_mask = debug_get_flags_option("R600_NIR_DEBUG", sfn_debug_options, 0);
     93    m_log_mask ^= err;
     94 }
     95 
     96 SfnLog& SfnLog::operator << (SfnLog::LogFlag const l)
     97 {
     98    m_active_log_flags = l;
     99    return *this;
    100 }
    101 
    102 SfnLog& SfnLog::operator << (UNUSED std::ostream & (*f)(std::ostream&))
    103 {
    104    if (m_active_log_flags & m_log_mask)
    105       m_output << f;
    106    return *this;
    107 }
    108 
    109 SfnLog& SfnLog::operator << (nir_shader& sh)
    110 {
    111    if (m_active_log_flags & m_log_mask)
    112       nir_print_shader(&sh, stderr);
    113    return *this;
    114 }
    115 
    116 SfnLog& SfnLog::operator << (nir_instr &instr)
    117 {
    118    if (m_active_log_flags & m_log_mask)
    119       nir_print_instr(&instr, stderr);
    120    return *this;
    121 }
    122 
    123 SfnTrace::SfnTrace(SfnLog::LogFlag flag, const char *msg):
    124    m_flag(flag),
    125    m_msg(msg)
    126 {
    127    sfn_log << m_flag << std::string(" ", 2 * m_indention++)
    128            << "BEGIN: " << m_msg << "\n";
    129 }
    130 
    131 SfnTrace::~SfnTrace()
    132 {
    133    sfn_log << m_flag << std::string(" ", 2 * m_indention--)
    134            << "END:   " << m_msg << "\n";
    135 }
    136 
    137 int SfnTrace::m_indention = 0;
    138 
    139 }
    140