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External process/thread name retrieval on linux.

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This commit is contained in:
Bartosz Taudul 2019-08-16 21:00:42 +02:00
parent 26e93b35c6
commit 819ef2a82b
1 changed files with 52 additions and 2 deletions
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54
client/TracySysTrace.cpp
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@ -213,6 +213,7 @@ void SysTraceSendExternalName( uint64_t thread )
# include <sys/types.h>
# include <sys/stat.h>
# include <fcntl.h>
# include <inttypes.h>
# include <stdio.h>
# include <string.h>
# include <unistd.h>
@ -393,8 +394,57 @@ void SysTraceWorker( void* ptr )
void SysTraceSendExternalName( uint64_t thread )
{
// TODO
GetProfiler().SendString( thread, "???", QueueType::ExternalThreadName );
FILE* f;
char fn[256];
sprintf( fn, "/proc/%" PRIu64 "/comm", thread );
f = fopen( fn, "rb" );
if( f )
{
char buf[256];
const auto sz = fread( buf, 1, 256, f );
if( sz > 0 && buf[sz-1] == '\n' ) buf[sz-1] = '\0';
GetProfiler().SendString( thread, buf, QueueType::ExternalThreadName );
fclose( f );
}
else
{
GetProfiler().SendString( thread, "???", QueueType::ExternalThreadName );
}
sprintf( fn, "/proc/%" PRIu64 "/status", thread );
f = fopen( fn, "rb" );
if( f )
{
int pid = -1;
size_t lsz = 1024;
auto line = (char*)malloc( lsz );
for(;;)
{
auto rd = getline( &line, &lsz, f );
if( rd <= 0 ) break;
if( memcmp( "Tgid:\t", line, 6 ) == 0 )
{
pid = atoi( line + 6 );
break;
}
}
free( line );
fclose( f );
if( pid >= 0 )
{
sprintf( fn, "/proc/%i/comm", pid );
f = fopen( fn, "rb" );
if( f )
{
char buf[256];
const auto sz = fread( buf, 1, 256, f );
if( sz > 0 && buf[sz-1] == '\n' ) buf[sz-1] = '\0';
GetProfiler().SendString( thread, buf, QueueType::ExternalName );
fclose( f );
return;
}
}
}
GetProfiler().SendString( thread, "???", QueueType::ExternalName );
}