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authorJeff Dike <jdike@addtoit.com>2007-10-16 12:26:50 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 20:43:05 +0400
commit42fda66387daa53538ae13a2c858396aaf037158 (patch)
tree77955a91a958fde7be47cb0ff23ac9e1248217db /arch/um/Kconfig.debug
parenta1ff5878d2628bbe1e42821c024c96f48318f683 (diff)
downloadlinux-42fda66387daa53538ae13a2c858396aaf037158.tar.xz
uml: throw out CONFIG_MODE_TT
This patchset throws out tt mode, which has been non-functional for a while. This is done in phases, interspersed with code cleanups on the affected files. The removal is done as follows: remove all code, config options, and files which depend on CONFIG_MODE_TT get rid of the CHOOSE_MODE macro, which decided whether to call tt-mode or skas-mode code, and replace invocations with their skas portions replace all now-trivial procedures with their skas equivalents There are now a bunch of now-redundant pieces of data structures, including mode-specific pieces of the thread structure, pt_regs, and mm_context. These are all replaced with their skas-specific contents. As part of the ongoing style compliance project, I made a style pass over all files that were changed. There are three such patches, one for each phase, covering the files affected by that phase but no later ones. I noticed that we weren't freeing the LDT state associated with a process when it exited, so that's fixed in one of the later patches. The last patch is a tidying patch which I've had for a while, but which caused inexplicable crashes under tt mode. Since that is no longer a problem, this can now go in. This patch: Start getting rid of tt mode support. This patch throws out CONFIG_MODE_TT and all config options, code, and files which depend on it. CONFIG_MODE_SKAS is gone and everything that depends on it is included unconditionally. The few changed lines are in re-written Kconfig help, lines which needed something skas-related removed from them, and a few more which weren't strictly deletions. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/Kconfig.debug')
-rw-r--r--arch/um/Kconfig.debug23
1 files changed, 2 insertions, 21 deletions
diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug
index c86f5eb29fd5..1eace4bd6616 100644
--- a/arch/um/Kconfig.debug
+++ b/arch/um/Kconfig.debug
@@ -2,28 +2,9 @@ menu "Kernel hacking"
source "lib/Kconfig.debug"
-config CMDLINE_ON_HOST
- bool "Show command line arguments on the host in TT mode"
- depends on MODE_TT
- default !DEBUG_INFO
- help
- This controls whether arguments in guest processes should be shown on
- the host's ps output.
- Enabling this option hinders debugging on some recent GDB versions
- (because GDB gets "confused" when we do an execvp()). So probably you
- should disable it.
-
-config PT_PROXY
- bool "Enable ptrace proxy"
- depends on XTERM_CHAN && DEBUG_INFO && MODE_TT
- help
- This option enables a debugging interface which allows gdb to debug
- the kernel without needing to actually attach to kernel threads.
- If you want to do kernel debugging, say Y here; otherwise say N.
-
config GPROF
bool "Enable gprof support"
- depends on DEBUG_INFO && MODE_SKAS && !MODE_TT
+ depends on DEBUG_INFO
help
This allows profiling of a User-Mode Linux kernel with the gprof
utility.
@@ -36,7 +17,7 @@ config GPROF
config GCOV
bool "Enable gcov support"
- depends on DEBUG_INFO && MODE_SKAS
+ depends on DEBUG_INFO
help
This option allows developers to retrieve coverage data from a UML
session.