ash: move config stuff into ash.c, no code chages

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

4 files changed, 126 insertions, 110 deletions

diff --git a/shell/Config.src b/shell/Config.src
index f415a5fa6..6389d943a 100644
--- a/shell/Config.src
+++ b/shell/Config.src
@@ -7,109 +7,6 @@ menu "Shells"
 
 INSERT
 
-config ASH
-        bool "ash"
-        default y
-        depends on !NOMMU
-        help
-          Tha 'ash' shell adds about 60k in the default configuration and is
-          the most complete and most pedantically correct shell included with
-          busybox. This shell is actually a derivative of the Debian 'dash'
-          shell (by Herbert Xu), which was created by porting the 'ash' shell
-          (written by Kenneth Almquist) from NetBSD.
-
-config ASH_BASH_COMPAT
-        bool "bash-compatible extensions"
-        default y
-        depends on ASH
-        help
-          Enable bash-compatible extensions.
-
-config ASH_JOB_CONTROL
-        bool "Job control"
-        default y
-        depends on ASH
-        help
-          Enable job control in the ash shell.
-
-config ASH_ALIAS
-        bool "alias support"
-        default y
-        depends on ASH
-        help
-          Enable alias support in the ash shell.
-
-config ASH_GETOPTS
-        bool "Builtin getopt to parse positional parameters"
-        default y
-        depends on ASH
-        help
-          Enable getopts builtin in the ash shell.
-
-config ASH_BUILTIN_ECHO
-        bool "Builtin version of 'echo'"
-        default y
-        depends on ASH
-        help
-          Enable support for echo, builtin to ash.
-
-config ASH_BUILTIN_PRINTF
-        bool "Builtin version of 'printf'"
-        default y
-        depends on ASH
-        help
-          Enable support for printf, builtin to ash.
-
-config ASH_BUILTIN_TEST
-        bool "Builtin version of 'test'"
-        default y
-        depends on ASH
-        help
-          Enable support for test, builtin to ash.
-
-config ASH_CMDCMD
-        bool "'command' command to override shell builtins"
-        default y
-        depends on ASH
-        help
-          Enable support for the ash 'command' builtin, which allows
-          you to run the specified command with the specified arguments,
-          even when there is an ash builtin command with the same name.
-
-config ASH_MAIL
-        bool "Check for new mail on interactive shells"
-        default n
-        depends on ASH
-        help
-          Enable "check for new mail" in the ash shell.
-
-config ASH_OPTIMIZE_FOR_SIZE
-        bool "Optimize for size instead of speed"
-        default y
-        depends on ASH
-        help
-          Compile ash for reduced size at the price of speed.
-
-config ASH_RANDOM_SUPPORT
-        bool "Pseudorandom generator and $RANDOM variable"
-        default y
-        depends on ASH
-        help
-          Enable pseudorandom generator and dynamic variable "$RANDOM".
-          Each read of "$RANDOM" will generate a new pseudorandom value.
-          You can reset the generator by using a specified start value.
-          After "unset RANDOM" the generator will switch off and this
-          variable will no longer have special treatment.
-
-config ASH_EXPAND_PRMT
-        bool "Expand prompt string"
-        default y
-        depends on ASH
-        help
-          "PS#" may contain volatile content, such as backquote commands.
-          This option recreates the prompt string from the environment
-          variable each time it is displayed.
-
 
 choice
         prompt "Choose which shell is aliased to 'sh' name"
@@ -284,12 +181,17 @@ config CTTYHACK
 
           ::respawn:/bin/cttyhack /bin/sh
 
+          Starting an interactive shell from boot shell script:
+
+          setsid cttyhack sh
+
           Giving controlling tty to shell running with PID 1:
 
-          $ exec cttyhack sh
+          # exec cttyhack sh
 
-          Starting an interactive shell from boot shell script:
+          Without cttyhack, you need to know exact tty name,
+          and do something like this:
 
-          setsid cttyhack sh
+          # exec setsid sh -c 'exec sh </dev/tty1 >/dev/tty1 2>&1'
 
 endmenu
diff --git a/shell/Kbuild.src b/shell/Kbuild.src
index c7eb5b61a..bce99240f 100644
--- a/shell/Kbuild.src
+++ b/shell/Kbuild.src
@@ -8,8 +8,5 @@ lib-y:=
 
 INSERT
 
-lib-$(CONFIG_ASH)      += ash.o ash_ptr_hack.o shell_common.o
 lib-$(CONFIG_CTTYHACK) += cttyhack.o
-
 lib-$(CONFIG_SH_MATH_SUPPORT) += math.o
-lib-$(CONFIG_ASH_RANDOM_SUPPORT) += random.o
diff --git a/shell/ash.c b/shell/ash.c
index 0337a5535..9b33e78ec 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -70,6 +70,123 @@
 # error "Do not even bother, ash will not run on NOMMU machine"
 #endif
 
+//applet:IF_ASH(APPLET(ash, _BB_DIR_BIN, _BB_SUID_DROP))
+//applet:IF_FEATURE_SH_IS_ASH(APPLET_ODDNAME(sh, ash, _BB_DIR_BIN, _BB_SUID_DROP, sh))
+//applet:IF_FEATURE_BASH_IS_ASH(APPLET_ODDNAME(bash, ash, _BB_DIR_BIN, _BB_SUID_DROP, bash))
+
+//kbuild:lib-$(CONFIG_ASH)      += ash.o ash_ptr_hack.o shell_common.o
+//kbuild:lib-$(CONFIG_ASH_RANDOM_SUPPORT) += random.o
+
+//config:config ASH
+//config:       bool "ash"
+//config:       default y
+//config:       depends on !NOMMU
+//config:       help
+//config:         Tha 'ash' shell adds about 60k in the default configuration and is
+//config:         the most complete and most pedantically correct shell included with
+//config:         busybox. This shell is actually a derivative of the Debian 'dash'
+//config:         shell (by Herbert Xu), which was created by porting the 'ash' shell
+//config:         (written by Kenneth Almquist) from NetBSD.
+//config:
+//config:config ASH_BASH_COMPAT
+//config:       bool "bash-compatible extensions"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Enable bash-compatible extensions.
+//config:
+//config:config ASH_JOB_CONTROL
+//config:       bool "Job control"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Enable job control in the ash shell.
+//config:
+//config:config ASH_ALIAS
+//config:       bool "alias support"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Enable alias support in the ash shell.
+//config:
+//config:config ASH_GETOPTS
+//config:       bool "Builtin getopt to parse positional parameters"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Enable getopts builtin in the ash shell.
+//config:
+//config:config ASH_BUILTIN_ECHO
+//config:       bool "Builtin version of 'echo'"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Enable support for echo, builtin to ash.
+//config:
+//config:config ASH_BUILTIN_PRINTF
+//config:       bool "Builtin version of 'printf'"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Enable support for printf, builtin to ash.
+//config:
+//config:config ASH_BUILTIN_TEST
+//config:       bool "Builtin version of 'test'"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Enable support for test, builtin to ash.
+//config:
+//config:config ASH_CMDCMD
+//config:       bool "'command' command to override shell builtins"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Enable support for the ash 'command' builtin, which allows
+//config:         you to run the specified command with the specified arguments,
+//config:         even when there is an ash builtin command with the same name.
+//config:
+//config:config ASH_MAIL
+//config:       bool "Check for new mail on interactive shells"
+//config:       default n
+//config:       depends on ASH
+//config:       help
+//config:         Enable "check for new mail" in the ash shell.
+//config:
+//config:config ASH_OPTIMIZE_FOR_SIZE
+//config:       bool "Optimize for size instead of speed"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Compile ash for reduced size at the price of speed.
+//config:
+//config:config ASH_RANDOM_SUPPORT
+//config:       bool "Pseudorandom generator and $RANDOM variable"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         Enable pseudorandom generator and dynamic variable "$RANDOM".
+//config:         Each read of "$RANDOM" will generate a new pseudorandom value.
+//config:         You can reset the generator by using a specified start value.
+//config:         After "unset RANDOM" the generator will switch off and this
+//config:         variable will no longer have special treatment.
+//config:
+//config:config ASH_EXPAND_PRMT
+//config:       bool "Expand prompt string"
+//config:       default y
+//config:       depends on ASH
+//config:       help
+//config:         "PS#" may contain volatile content, such as backquote commands.
+//config:         This option recreates the prompt string from the environment
+//config:         variable each time it is displayed.
+
+//usage:#define ash_trivial_usage NOUSAGE_STR
+//usage:#define ash_full_usage ""
+//usage:#define sh_trivial_usage NOUSAGE_STR
+//usage:#define sh_full_usage ""
+//usage:#define bash_trivial_usage NOUSAGE_STR
+//usage:#define bash_full_usage ""
+
 
 /* ============ Hash table sizes. Configurable. */
 
diff --git a/shell/hush.c b/shell/hush.c
index c5a8ea617..56a3f4b14 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -114,7 +114,7 @@
 //config:       bool "hush"
 //config:       default y
 //config:       help
-//config:         hush is a small shell (22k). It handles the normal flow control
+//config:         hush is a small shell (25k). It handles the normal flow control
 //config:         constructs such as if/then/elif/else/fi, for/in/do/done, while loops,
 //config:         case/esac. Redirections, here documents, $((arithmetic))
 //config:         and functions are supported.