diff options
Diffstat (limited to 'cpukit/libtrace/record/record-dump.c')
-rw-r--r-- | cpukit/libtrace/record/record-dump.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/cpukit/libtrace/record/record-dump.c b/cpukit/libtrace/record/record-dump.c new file mode 100644 index 0000000000..b3c757226a --- /dev/null +++ b/cpukit/libtrace/record/record-dump.c @@ -0,0 +1,108 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/* + * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/recorddump.h> +#include <rtems/score/threadimpl.h> + +typedef struct { + rtems_record_dump_chunk chunk; + void *arg; +} dump_context; + +static void dump_chunk( dump_context *ctx, const void *data, size_t length ) +{ + ( *ctx->chunk )( ctx->arg, data, length ); +} + +static bool thread_names_visitor( rtems_tcb *tcb, void *arg ) +{ + dump_context *ctx; + char name[ 2 * THREAD_DEFAULT_MAXIMUM_NAME_SIZE ]; + size_t n; + size_t i; + rtems_record_item item; + rtems_record_data data; + + ctx = arg; + item.event = RTEMS_RECORD_THREAD_ID; + item.data = tcb->Object.id; + dump_chunk( ctx, &item, sizeof( item ) ); + + n = _Thread_Get_name( tcb, name, sizeof( name ) ); + i = 0; + + while ( i < n ) { + size_t j; + + data = 0; + + for ( j = 0; i < n && j < sizeof( data ); ++j ) { + rtems_record_data c; + + c = (unsigned char) name[ i ]; + data |= c << ( j * 8 ); + ++i; + } + + item.event = RTEMS_RECORD_THREAD_NAME; + item.data = data; + dump_chunk( ctx, &item, sizeof( item ) ); + } + + return false; +} + +static void drain_visitor( + const rtems_record_item *items, + size_t count, + void *arg +) +{ + dump_chunk( arg, items, count * sizeof( *items ) ); +} + +void rtems_record_dump( + rtems_record_dump_chunk chunk, + void *arg +) +{ + Record_Stream_header header; + size_t size; + dump_context ctx; + + ctx.chunk = chunk; + ctx.arg = arg; + + size = _Record_Stream_header_initialize( &header ); + dump_chunk( &ctx, &header, size ); + rtems_task_iterate( thread_names_visitor, &ctx ); + rtems_record_drain( drain_visitor, &ctx ); +} |