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Add --enable-debug-log configure option
Until now the notion of an internal debug logging infrastructure
was conflated with enabling ASSERT()s. This patch clarifies things
by cleanly breaking the two subsystem apart. The result of this
is the following behavior.
--enable-debug - Enable/disable code wrapped in ASSERT()s.
--disable-debug ASSERT()s are used to check invariants and
are never required for correct operation.
They are disabled by default because they
may impact performance.
--enable-debug-log - Enable/disable the debug log infrastructure.
--disable-debug-log This infrastructure allows the spl code and
its consumer to log messages to an in-kernel
log. The granularity of the logging can be
controlled by a debug mask. By default the
mask disables most debug messages resulting
in a negligible performance impact. Because
of this the debug log is enabled by default.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Brian Behlendorf
@@ -961,6 +961,7 @@ with_config
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with_linux
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with_linux_obj
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enable_debug
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enable_debug_log
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enable_debug_kmem
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enable_debug_kmem_tracking
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enable_atomic_spinlocks
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@@ -1615,6 +1616,7 @@ Optional Features:
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optimize for fast installation [default=yes]
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--disable-libtool-lock avoid locking (might break parallel builds)
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--enable-debug Enable generic debug support [default=no]
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--enable-debug-log Enable basic debug logging [default=yes]
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--enable-debug-kmem Enable basic kmem accounting [default=yes]
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--enable-debug-kmem-tracking
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Enable detailed kmem tracking [default=no]
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@@ -4783,13 +4785,13 @@ if test "${lt_cv_nm_interface+set}" = set; then
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else
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lt_cv_nm_interface="BSD nm"
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echo "int some_variable = 0;" > conftest.$ac_ext
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(eval echo "\"\$as_me:4786: $ac_compile\"" >&5)
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(eval echo "\"\$as_me:4788: $ac_compile\"" >&5)
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(eval "$ac_compile" 2>conftest.err)
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cat conftest.err >&5
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(eval echo "\"\$as_me:4789: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
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(eval echo "\"\$as_me:4791: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
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(eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
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cat conftest.err >&5
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(eval echo "\"\$as_me:4792: output\"" >&5)
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(eval echo "\"\$as_me:4794: output\"" >&5)
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cat conftest.out >&5
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if $GREP 'External.*some_variable' conftest.out > /dev/null; then
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lt_cv_nm_interface="MS dumpbin"
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@@ -5995,7 +5997,7 @@ ia64-*-hpux*)
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;;
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*-*-irix6*)
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# Find out which ABI we are using.
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echo '#line 5998 "configure"' > conftest.$ac_ext
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echo '#line 6000 "configure"' > conftest.$ac_ext
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if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
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(eval $ac_compile) 2>&5
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ac_status=$?
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@@ -7848,11 +7850,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:7851: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:7853: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>conftest.err)
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ac_status=$?
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cat conftest.err >&5
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echo "$as_me:7855: \$? = $ac_status" >&5
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echo "$as_me:7857: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s "$ac_outfile"; then
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# The compiler can only warn and ignore the option if not recognized
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# So say no if there are warnings other than the usual output.
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@@ -8187,11 +8189,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:8190: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:8192: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>conftest.err)
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ac_status=$?
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cat conftest.err >&5
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echo "$as_me:8194: \$? = $ac_status" >&5
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echo "$as_me:8196: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s "$ac_outfile"; then
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# The compiler can only warn and ignore the option if not recognized
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# So say no if there are warnings other than the usual output.
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@@ -8292,11 +8294,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:8295: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:8297: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>out/conftest.err)
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ac_status=$?
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cat out/conftest.err >&5
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echo "$as_me:8299: \$? = $ac_status" >&5
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echo "$as_me:8301: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s out/conftest2.$ac_objext
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then
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# The compiler can only warn and ignore the option if not recognized
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@@ -8347,11 +8349,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:8350: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:8352: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>out/conftest.err)
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ac_status=$?
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cat out/conftest.err >&5
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echo "$as_me:8354: \$? = $ac_status" >&5
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echo "$as_me:8356: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s out/conftest2.$ac_objext
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then
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# The compiler can only warn and ignore the option if not recognized
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@@ -11150,7 +11152,7 @@ else
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lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
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lt_status=$lt_dlunknown
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cat > conftest.$ac_ext <<_LT_EOF
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#line 11153 "configure"
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#line 11155 "configure"
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#include "confdefs.h"
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#if HAVE_DLFCN_H
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@@ -11246,7 +11248,7 @@ else
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lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
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lt_status=$lt_dlunknown
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cat > conftest.$ac_ext <<_LT_EOF
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#line 11249 "configure"
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#line 11251 "configure"
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#include "confdefs.h"
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#if HAVE_DLFCN_H
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@@ -11980,6 +11982,30 @@ fi
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$as_echo "$enable_debug" >&6; }
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# Check whether --enable-debug-log was given.
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if test "${enable_debug_log+set}" = set; then
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enableval=$enable_debug_log;
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else
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enable_debug_log=yes
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fi
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if test "x$enable_debug_log" = xyes; then
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cat >>confdefs.h <<\_ACEOF
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#define DEBUG_LOG 1
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_ACEOF
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KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_LOG"
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fi
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{ $as_echo "$as_me:$LINENO: checking whether basic debug logging is enabled" >&5
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$as_echo_n "checking whether basic debug logging is enabled... " >&6; }
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{ $as_echo "$as_me:$LINENO: result: $enable_debug_log" >&5
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$as_echo "$enable_debug_log" >&6; }
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# Check whether --enable-debug-kmem was given.
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if test "${enable_debug_kmem+set}" = set; then
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enableval=$enable_debug_kmem;
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@@ -16359,6 +16385,30 @@ fi
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$as_echo "$enable_debug" >&6; }
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# Check whether --enable-debug-log was given.
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if test "${enable_debug_log+set}" = set; then
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enableval=$enable_debug_log;
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else
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enable_debug_log=yes
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fi
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if test "x$enable_debug_log" = xyes; then
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cat >>confdefs.h <<\_ACEOF
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#define DEBUG_LOG 1
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_ACEOF
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KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_LOG"
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fi
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{ $as_echo "$as_me:$LINENO: checking whether basic debug logging is enabled" >&5
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$as_echo_n "checking whether basic debug logging is enabled... " >&6; }
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{ $as_echo "$as_me:$LINENO: result: $enable_debug_log" >&5
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$as_echo "$enable_debug_log" >&6; }
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# Check whether --enable-debug-kmem was given.
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if test "${enable_debug_kmem+set}" = set; then
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enableval=$enable_debug_kmem;
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