Janne, this looks OK. Since you are touching on configuration and posix
dependencies have you tested under any other systems?
Jerry
On 9/21/18 1:41 AM, Janne Blomqvist wrote:
PING
On Wed, Sep 12, 2018 at 10:17 PM Janne Blomqvist <blomqvist.ja...@gmail.com>
wrote:
When producing error and warning messages, libgfortran writes a
message by using many system calls. By using vectored writes (the
POSIX writev function) when available and feasible to use without
major surgery, we reduce the chance that output gets intermingled with
other output to stderr.
In practice, this is done by introducing a new function estr_writev in
addition to the existing estr_write. In order to use this, the old
st_vprintf is removed, replaced by direct calls of vsnprintf, allowing
more message batching.
Regtested on x86_64-pc-linux-gnu, Ok for trunk?
libgfortran/ChangeLog:
2018-09-12 Janne Blomqvist <j...@gcc.gnu.org>
* config.h.in: Regenerated.
* configure: Regenerated.
* configure.ac: Check for writev and sys/uio.h.
* libgfortran.h: Include sys/uio.h.
(st_vprintf): Remove prototype.
(struct iovec): Define if not available.
(estr_writev): New prototype.
* runtime/backtrace.c (error_callback): Use estr_writev.
* runtime/error.c (ST_VPRINTF_SIZE): Remove.
(estr_writev): New function.
(st_vprintf): Remove.
(gf_vsnprintf): New function.
(ST_ERRBUF_SIZE): New macro.
(st_printf): Use vsnprintf.
(os_error): Use estr_writev.
(runtime_error): Use vsnprintf and estr_writev.
(runtime_error_at): Likewise.
(runtime_warning_at): Likewise.
(internal_error): Use estr_writev.
(generate_error_common): Likewise.
(generate_warning): Likewise.
(notify_std): Likewise.
* runtime/pause.c (pause_string): Likewise.
* runtime/stop.c (report_exception): Likewise.
(stop_string): Likewise.
(error_stop_string): Likewise.
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