# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 787d946ad4579b39eb13fd5fa5a0b36c1e2face6
# Parent 568b8d8fc782d5662c27ac60db2eab2a2b90cd3b
Allow CONFIG_DEBUG_INFO to be specified when building
x86/64 XenLinux. Builds and boots fine. Leave the option
disabled by default, as with all other defconfigs.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
diff -r 568b8d8fc782 -r 787d946ad457 buildconfigs/linux-defconfig_xen0_x86_64
--- a/buildconfigs/linux-defconfig_xen0_x86_64 Thu Apr 6 08:40:15 2006
+++ b/buildconfigs/linux-defconfig_xen0_x86_64 Thu Apr 6 08:47:58 2006
@@ -1183,6 +1183,7 @@
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
+# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_DEBUG_VM is not set
CONFIG_FRAME_POINTER=y
diff -r 568b8d8fc782 -r 787d946ad457 buildconfigs/linux-defconfig_xenU_x86_64
--- a/buildconfigs/linux-defconfig_xenU_x86_64 Thu Apr 6 08:40:15 2006
+++ b/buildconfigs/linux-defconfig_xenU_x86_64 Thu Apr 6 08:47:58 2006
@@ -1080,6 +1080,7 @@
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
+# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_DEBUG_VM is not set
CONFIG_FRAME_POINTER=y
diff -r 568b8d8fc782 -r 787d946ad457 buildconfigs/linux-defconfig_xen_x86_64
--- a/buildconfigs/linux-defconfig_xen_x86_64 Thu Apr 6 08:40:15 2006
+++ b/buildconfigs/linux-defconfig_xen_x86_64 Thu Apr 6 08:47:58 2006
@@ -2587,6 +2587,7 @@
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
+# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_FRAME_POINTER is not set
diff -r 568b8d8fc782 -r 787d946ad457 linux-2.6-xen-sparse/lib/Kconfig.debug
--- a/linux-2.6-xen-sparse/lib/Kconfig.debug Thu Apr 6 08:40:15 2006
+++ /dev/null Thu Apr 6 08:47:58 2006
@@ -1,224 +0,0 @@
-
-config PRINTK_TIME
- bool "Show timing information on printks"
- help
- Selecting this option causes timing information to be
- included in printk output. This allows you to measure
- the interval between kernel operations, including bootup
- operations. This is useful for identifying long delays
- in kernel startup.
-
-
-config MAGIC_SYSRQ
- bool "Magic SysRq key"
- depends on !UML
- help
- If you say Y here, you will have some control over the system even
- if the system crashes for example during kernel debugging (e.g., you
- will be able to flush the buffer cache to disk, reboot the system
- immediately or dump some status information). This is accomplished
- by pressing various keys while holding SysRq (Alt+PrintScreen). It
- also works on a serial console (on PC hardware at least), if you
- send a BREAK and then within 5 seconds a command keypress. The
- keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
- unless you really know what this hack does.
-
-config DEBUG_KERNEL
- bool "Kernel debugging"
- help
- Say Y here if you are developing drivers or trying to debug and
- identify kernel problems.
-
-config LOG_BUF_SHIFT
- int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" if DEBUG_KERNEL
- range 12 21
- default 17 if S390
- default 16 if X86_NUMAQ || IA64
- default 15 if SMP
- default 14
- help
- Select kernel log buffer size as a power of 2.
- Defaults and Examples:
- 17 => 128 KB for S/390
- 16 => 64 KB for x86 NUMAQ or IA-64
- 15 => 32 KB for SMP
- 14 => 16 KB for uniprocessor
- 13 => 8 KB
- 12 => 4 KB
-
-config DETECT_SOFTLOCKUP
- bool "Detect Soft Lockups"
- depends on DEBUG_KERNEL
- default y
- help
- Say Y here to enable the kernel to detect "soft lockups",
- which are bugs that cause the kernel to loop in kernel
- mode for more than 10 seconds, without giving other tasks a
- chance to run.
-
- When a soft-lockup is detected, the kernel will print the
- current stack trace (which you should report), but the
- system will stay locked up. This feature has negligible
- overhead.
-
- (Note that "hard lockups" are separate type of bugs that
- can be detected via the NMI-watchdog, on platforms that
- support it.)
-
-config SCHEDSTATS
- bool "Collect scheduler statistics"
- depends on DEBUG_KERNEL && PROC_FS
- help
- If you say Y here, additional code will be inserted into the
- scheduler and related routines to collect statistics about
- scheduler behavior and provide them in /proc/schedstat. These
- stats may be useful for both tuning and debugging the scheduler
- If you aren't debugging the scheduler or trying to tune a specific
- application, you can say N to avoid the very slight overhead
- this adds.
-
-config DEBUG_SLAB
- bool "Debug memory allocations"
- depends on DEBUG_KERNEL && SLAB
- help
- Say Y here to have the kernel do limited verification on memory
- allocation as well as poisoning memory on free to catch use of freed
- memory. This can make kmalloc/kfree-intensive workloads much slower.
-
-config DEBUG_PREEMPT
- bool "Debug preemptible kernel"
- depends on DEBUG_KERNEL && PREEMPT
- default y
- help
- If you say Y here then the kernel will use a debug variant of the
- commonly used smp_processor_id() function and will print warnings
- if kernel code uses it in a preemption-unsafe way. Also, the kernel
- will detect preemption count underflows.
-
-config DEBUG_MUTEXES
- bool "Mutex debugging, deadlock detection"
- default y
- depends on DEBUG_KERNEL
- help
- This allows mutex semantics violations and mutex related deadlocks
- (lockups) to be detected and reported automatically.
-
-config DEBUG_SPINLOCK
- bool "Spinlock debugging"
- depends on DEBUG_KERNEL
- help
- Say Y here and build SMP to catch missing spinlock initialization
- and certain other kinds of spinlock errors commonly made. This is
- best used in conjunction with the NMI watchdog so that spinlock
- deadlocks are also debuggable.
-
-config DEBUG_SPINLOCK_SLEEP
- bool "Sleep-inside-spinlock checking"
- depends on DEBUG_KERNEL
- help
- If you say Y here, various routines which may sleep will become very
- noisy if they are called with a spinlock held.
-
-config DEBUG_KOBJECT
- bool "kobject debugging"
- depends on DEBUG_KERNEL
- help
- If you say Y here, some extra kobject debugging messages will be sent
- to the syslog.
-
-config DEBUG_HIGHMEM
- bool "Highmem debugging"
- depends on DEBUG_KERNEL && HIGHMEM
- help
- This options enables addition error checking for high memory systems.
- Disable for production systems.
-
-config DEBUG_BUGVERBOSE
- bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED
- depends on BUG
- depends on ARM || ARM26 || M32R || M68K || SPARC32 || SPARC64 || X86_32
|| FRV
- default !EMBEDDED
- help
- Say Y here to make BUG() panics output the file name and line number
- of the BUG call as well as the EIP and oops trace. This aids
- debugging but costs about 70-100K of memory.
-
-config DEBUG_INFO
- bool "Compile the kernel with debug info"
- depends on DEBUG_KERNEL && !X86_64_XEN
- help
- If you say Y here the resulting kernel image will include
- debugging info resulting in a larger kernel image.
- Say Y here only if you plan to debug the kernel.
-
- If unsure, say N.
-
-config DEBUG_IOREMAP
- bool "Enable ioremap() debugging"
- depends on DEBUG_KERNEL && PARISC
- help
- Enabling this option will cause the kernel to distinguish between
- ioremapped and physical addresses. It will print a backtrace (at
- most one every 10 seconds), hopefully allowing you to see which
- drivers need work. Fixing all these problems is a prerequisite
- for turning on USE_HPPA_IOREMAP. The warnings are harmless;
- the kernel has enough information to fix the broken drivers
- automatically, but we'd like to make it more efficient by not
- having to do that.
-
-config DEBUG_FS
- bool "Debug Filesystem"
- depends on DEBUG_KERNEL && SYSFS
- help
- debugfs is a virtual file system that kernel developers use to put
- debugging files into. Enable this option to be able to read and
- write to these files.
-
- If unsure, say N.
-
-config DEBUG_VM
- bool "Debug VM"
- depends on DEBUG_KERNEL
- help
- Enable this to turn on extended checks in the virtual-memory system
- that may impact performance.
-
- If unsure, say N.
-
-config FRAME_POINTER
- bool "Compile the kernel with frame pointers"
- depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV ||
UML)
- default y if DEBUG_INFO && UML
- help
- If you say Y here the resulting kernel image will be slightly larger
- and slower, but it might give very useful debugging information on
- some architectures or if you use external debuggers.
- If you don't debug the kernel, you can say N.
-
-config FORCED_INLINING
- bool "Force gcc to inline functions marked 'inline'"
- depends on DEBUG_KERNEL
- default y
- help
- This option determines if the kernel forces gcc to inline the
functions
- developers have marked 'inline'. Doing so takes away freedom from gcc
to
- do what it thinks is best, which is desirable for the gcc 3.x series
of
- compilers. The gcc 4.x series have a rewritten inlining algorithm and
- disabling this option will generate a smaller kernel there. Hopefully
- this algorithm is so good that allowing gcc4 to make the decision can
- become the default in the future, until then this option is there to
- test gcc for this.
-
-config RCU_TORTURE_TEST
- tristate "torture tests for RCU"
- depends on DEBUG_KERNEL
- default n
- help
- This option provides a kernel module that runs torture tests
- on the RCU infrastructure. The kernel module may be built
- after the fact on the running kernel to be tested, if desired.
-
- Say Y here if you want RCU torture tests to start automatically
- at boot time (you probably don't).
- Say M if you want the RCU torture tests to build as a module.
- Say N if you are unsure.
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