Commit 6533dd6e authored by Lluís Vilanova's avatar Lluís Vilanova Committed by Stefan Hajnoczi
Browse files

trace: [linux-user] Commandline arguments to control tracing 



[Changed const char *trace_file to char *trace_file since it's a
heap-allocated string that needs to be freed.  This type is also
returned by trace_opt_parse() and used in vl.c.
--Stefan]

Signed-off-by: default avatarLluís Vilanova <vilanova@ac.upc.edu>
Message-id: 146860251784.30668.17339867835129075077.stgit@fimbulvetr.bsc.es
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
parent 3913d370

linux-user/main.c

+19 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 
#include "qapi/error.h"

#include "qemu.h"

#include "qemu/path.h"

#include "qemu/config-file.h"

#include "qemu/cutils.h"

#include "qemu/help_option.h"

#include "cpu.h"
@@ -33,6 +34,8 @@ 
#include "qemu/envlist.h"

#include "elf.h"

#include "exec/log.h"

#include "trace/control.h"

#include "glib-compat.h"



char *exec_path;
@@ -4001,6 +4004,13 @@ static void handle_arg_version(const char *arg) 
    exit(EXIT_SUCCESS);

}



static char *trace_file;

static void handle_arg_trace(const char *arg)

{

    g_free(trace_file);

    trace_file = trace_opt_parse(arg);

}



struct qemu_argument {

    const char *argv;

    const char *env;
@@ -4048,6 +4058,8 @@ static const struct qemu_argument arg_table[] = { 
     "",           "log system calls"},

    {"seed",       "QEMU_RAND_SEED",   true,  handle_arg_randseed,

     "",           "Seed for pseudo-random number generator"},

    {"trace",      "QEMU_TRACE",       true,  handle_arg_trace,

     "",           "[[enable=]<pattern>][,events=<file>][,file=<file>]"},

    {"version",    "QEMU_VERSION",     false, handle_arg_version,

     "",           "display version information and exit"},

    {NULL, NULL, false, NULL, NULL, NULL}
@@ -4237,8 +4249,15 @@ int main(int argc, char **argv, char **envp) 


    srand(time(NULL));



    qemu_add_opts(&qemu_trace_opts);



    optind = parse_args(argc, argv);



    if (!trace_init_backends()) {

        exit(1);

    }

    trace_init_file(trace_file);



    /* Zero out regs */

    memset(regs, 0, sizeof(struct target_pt_regs));