113 lines
3.6 KiB
Diff
113 lines
3.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Renaud=20M=C3=A9trich?= <rmetrich@redhat.com>
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Date: Sat, 23 Nov 2019 14:57:41 +0100
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Subject: [PATCH] New --with-debug-timestamps configure flag to prepend debug
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traces with absolute and relative timestamp
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: Renaud Métrich <rmetrich@redhat.com>
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---
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configure.ac | 18 ++++++++++++++++++
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grub-core/kern/misc.c | 20 ++++++++++++++++++++
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config.h.in | 1 +
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3 files changed, 39 insertions(+)
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diff --git a/configure.ac b/configure.ac
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index 907477a585c..d5d2a28b4ef 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -1613,6 +1613,17 @@ else
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fi
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AC_SUBST([BOOT_TIME_STATS])
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+AC_ARG_WITH([debug-timestamps],
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+ AS_HELP_STRING([--with-debug-timestamps],
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+ [prepend debug traces with absolute and relative timestamps]))
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+
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+if test x$with_debug_timestamps = xyes; then
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+ DEBUG_WITH_TIMESTAMPS=1
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+else
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+ DEBUG_WITH_TIMESTAMPS=0
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+fi
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+AC_SUBST([DEBUG_WITH_TIMESTAMPS])
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+
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AC_ARG_ENABLE([grub-emu-sdl],
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[AS_HELP_STRING([--enable-grub-emu-sdl],
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[build and install the `grub-emu' debugging utility with SDL support (default=guessed)])])
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@@ -2200,6 +2211,7 @@ AM_CONDITIONAL([COND_APPLE_LINKER], [test x$TARGET_APPLE_LINKER = x1])
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AM_CONDITIONAL([COND_ENABLE_EFIEMU], [test x$enable_efiemu = xyes])
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AM_CONDITIONAL([COND_ENABLE_CACHE_STATS], [test x$DISK_CACHE_STATS = x1])
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AM_CONDITIONAL([COND_ENABLE_BOOT_TIME_STATS], [test x$BOOT_TIME_STATS = x1])
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+AM_CONDITIONAL([COND_DEBUG_WITH_TIMESTAMPS], [test x$DEBUG_WITH_TIMESTAMPS = x1])
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AM_CONDITIONAL([COND_HAVE_CXX], [test x$HAVE_CXX = xyes])
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@@ -2295,6 +2307,12 @@ else
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echo With boot time statistics: No
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fi
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+if [ x"$with_debug_timestamps" = xyes ]; then
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+echo Debug traces with timestamps: Yes
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+else
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+echo Debug traces with timestamps: No
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+fi
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+
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if [ x"$efiemu_excuse" = x ]; then
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echo efiemu runtime: Yes
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else
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diff --git a/grub-core/kern/misc.c b/grub-core/kern/misc.c
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index 578bf51a5fc..9f54b6b7d2d 100644
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--- a/grub-core/kern/misc.c
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+++ b/grub-core/kern/misc.c
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@@ -25,6 +25,9 @@
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#include <grub/env.h>
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#include <grub/i18n.h>
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#include <grub/backtrace.h>
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+#if DEBUG_WITH_TIMESTAMPS
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+#include <grub/time.h>
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+#endif
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union printf_arg
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{
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@@ -192,9 +195,26 @@ grub_real_dprintf (const char *file, const int line, const char *condition,
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const char *fmt, ...)
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{
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va_list args;
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+#if DEBUG_WITH_TIMESTAMPS
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+ static long unsigned int last_time = 0;
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+ static int last_had_cr = 1;
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+#endif
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if (grub_debug_enabled (condition))
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{
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+#if DEBUG_WITH_TIMESTAMPS
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+ /* Don't print timestamp if last printed message isn't terminated yet */
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+ if (last_had_cr) {
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+ long unsigned int tmabs = (long unsigned int) grub_get_time_ms();
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+ long unsigned int tmrel = tmabs - last_time;
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+ last_time = tmabs;
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+ grub_printf ("%3lu.%03lus +%2lu.%03lus ", tmabs / 1000, tmabs % 1000, tmrel / 1000, tmrel % 1000);
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+ }
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+ if (fmt[grub_strlen(fmt)-1] == '\n')
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+ last_had_cr = 1;
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+ else
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+ last_had_cr = 0;
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+#endif
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grub_printf ("%s:%d: ", file, line);
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va_start (args, fmt);
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grub_vprintf (fmt, args);
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diff --git a/config.h.in b/config.h.in
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index c7e316f0f1f..c80e3e0aba3 100644
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--- a/config.h.in
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+++ b/config.h.in
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@@ -12,6 +12,7 @@
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/* Define to 1 to enable disk cache statistics. */
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#define DISK_CACHE_STATS @DISK_CACHE_STATS@
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#define BOOT_TIME_STATS @BOOT_TIME_STATS@
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+#define DEBUG_WITH_TIMESTAMPS @DEBUG_WITH_TIMESTAMPS@
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/* We don't need those. */
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#define MINILZO_CFG_SKIP_LZO_PTR 1
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