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Introduce flush_early_log_to_stderr destructor

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Prior log initialisation CRIU preserves all (early) log messages in a
buffer. In case of error the content of the content of this buffer
needs to be printed out (flushed).

Suggested-by: Dmitry Safonov <0x7f454c46@gmail.com>
Signed-off-by: Radostin Stoyanov <rstoyanov1@gmail.com>
This commit is contained in:
Radostin Stoyanov
2019-09-15 06:58:15 +01:00
committed by Andrei Vagin
parent 8bdc60d50e
commit a9f974b495
1 changed files with 8 additions and 3 deletions
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11
criu/crtools.c
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@@ -47,6 +47,13 @@
#include "setproctitle.h" #include "setproctitle.h"
#include "sysctl.h" #include "sysctl.h"
void flush_early_log_to_stderr() __attribute__((destructor));
void flush_early_log_to_stderr(void)
{
flush_early_log_buffer(STDERR_FILENO);
}
int main(int argc, char *argv[], char *envp[]) int main(int argc, char *argv[], char *envp[])
{ {
int ret = -1; int ret = -1;
@@ -95,10 +102,8 @@ int main(int argc, char *argv[], char *envp[])
return cr_service_work(atoi(argv[2])); return cr_service_work(atoi(argv[2]));
} }
if (check_options()) { if (check_options())
flush_early_log_buffer(STDERR_FILENO);
return 1; return 1;
}
if (opts.imgs_dir == NULL) if (opts.imgs_dir == NULL)
SET_CHAR_OPTS(imgs_dir, "."); SET_CHAR_OPTS(imgs_dir, ".");