[v2] Logging cleanup and per-thread logfiles

[PATCH v2 17/39] util/log: Drop return value from qemu_log

Richard Henderson posted 39 patches 3 years, 10 months ago

Diff against v1 v1 v3
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Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Warner Losh <imp@bsdimp.com>, Kyle Evans <kevans@freebsd.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, Yanan Wang <wangyanan55@huawei.com>, Pavel Pisa <pisa@cmp.felk.cvut.cz>, Vikram Garhwal <fnu.vikram@xilinx.com>, Jason Wang <jasowang@redhat.com>, Stefano Stabellini <sstabellini@kernel.org>, Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul@xen.org>, Stefan Weil <sw@weilnetz.de>, Laurent Vivier <laurent@vivier.eu>, Markus Armbruster <armbru@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Eric Blake <eblake@redhat.com>, Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>, Fam Zheng <fam@euphon.net>, Peter Maydell <peter.maydell@linaro.org>, Michael Rolnik <mrolnik@gmail.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Taylor Simpson <tsimpson@quicinc.com>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Chris Wulff <crwulff@gmail.com>, Marek Vasut <marex@denx.de>, Stafford Horne <shorne@gmail.com>, "Cédric Le Goater" <clg@kaod.org>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Greg Kurz <groug@kaod.org>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, David Hildenbrand <david@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Thomas Huth <thuth@redhat.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Max Filippov <jcmvbkbc@gmail.com>

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[PATCH v2 17/39] util/log: Drop return value from qemu_log

Posted by Richard Henderson 3 years, 10 months ago

The only user of this feature, tcg_dump_ops, has been
converted to use fprintf directly.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/qemu/log-for-trace.h |  2 +-
 util/log.c                   | 13 ++-----------
 2 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/include/qemu/log-for-trace.h b/include/qemu/log-for-trace.h
index 5e41517227..d47c9cd446 100644
--- a/include/qemu/log-for-trace.h
+++ b/include/qemu/log-for-trace.h
@@ -30,6 +30,6 @@ static inline bool qemu_loglevel_mask(int mask)
 }
 
 /* main logging function */
-int G_GNUC_PRINTF(1, 2) qemu_log(const char *fmt, ...);
+void G_GNUC_PRINTF(1, 2) qemu_log(const char *fmt, ...);
 
 #endif
diff --git a/util/log.c b/util/log.c
index 090bc3bc39..2bd4dfba1b 100644
--- a/util/log.c
+++ b/util/log.c
@@ -59,26 +59,17 @@ void qemu_log_unlock(FILE *fd)
     }
 }
 
-/* Return the number of characters emitted.  */
-int qemu_log(const char *fmt, ...)
+void qemu_log(const char *fmt, ...)
 {
     FILE *f = qemu_log_trylock();
-    int ret = 0;
-
     if (f) {
         va_list ap;
 
         va_start(ap, fmt);
-        ret = vfprintf(f, fmt, ap);
+        vfprintf(f, fmt, ap);
         va_end(ap);
         qemu_log_unlock(f);
-
-        /* Don't pass back error results.  */
-        if (ret < 0) {
-            ret = 0;
-        }
     }
-    return ret;
 }
 
 static void __attribute__((__constructor__)) qemu_logfile_init(void)
-- 
2.25.1

Re: [PATCH v2 17/39] util/log: Drop return value from qemu_log

Posted by Alex Bennée 3 years, 10 months ago

Richard Henderson <richard.henderson@linaro.org> writes:

> The only user of this feature, tcg_dump_ops, has been
> converted to use fprintf directly.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée