Kconfig SourceCode GDB调试 *****
Posted qiuri2008
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1、GDB&makefile
scripts->Makefile编译FLAGS -g
HOSTCC = gcc HOSTCXX = g++ HOSTCFLAGS := HOSTCXXFLAGS := include $(srctree)/scripts/Kbuild.include HOSTCFLAGS += $(call hostcc-option,-Wall -Wstrict-prototypes -O2 -g -fomit-frame-pointer,) HOSTCXXFLAGS += -O2
静态模式:
所有xxxconfig的目标都执行
%config: scripts_basic outputmakefile FORCE customer
customer: ../code/tools/gen_radisson_customer.pl -C ../CUS_FILE config: scripts_basic outputmakefile FORCE customer # $(Q)mkdir -p include $(Q)$(MAKE) $(build)=scripts/kconfig $@ $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease %config: scripts_basic outputmakefile FORCE customer # $(Q)mkdir -p include $(Q)$(MAKE) $(build)=scripts/kconfig $@ $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease
Makefile的执行过程:
../code/tools/gen_radisson_customer.pl -C ../CUS_FILE make -f scripts/Makefile.build obj=scripts/kconfig menuconfig set -e; echo \' HOSTCC scripts/kconfig/conf.o\';
gcc -Wp,-MD,scripts/kconfig/.conf.o.d -Wall -Wstrict-prototypes -O2 -g -fomit-frame-pointer \\
-c -o scripts/kconfig/conf.o scripts/kconfig/conf.c; scripts/basic/fixdep scripts/kconfig/.conf.o.d scripts/kconfig/conf.o \\
\'gcc -Wp,-MD,scripts/kconfig/.conf.o.d -Wall -Wstrict-prototypes -O2 -g -fomit-frame-pointer -c -o scripts/kconfig/conf.o scripts/kconfig/conf.c\' \\
> scripts/kconfig/.conf.o.tmp; rm -f scripts/kconfig/.conf.o.d; mv -f scripts/kconfig/.conf.o.tmp scripts/kconfig/.conf.o.cmd
set -e; echo \' HOSTCC scripts/kconfig/kxgettext.o\';
gcc -Wp,-MD,scripts/kconfig/.kxgettext.o.d -Wall -Wstrict-prototypes -O2 -g -fomit-frame-pointer -c -o scripts/kconfig/kxgettext.o scripts/kconfig/kxgettext.c; scripts/basic/fixdep scripts/kconfig/.kxgettext.o.d scripts/kconfig/kxgettext.o
\'gcc -Wp,-MD,scripts/kconfig/.kxgettext.o.d -Wall -Wstrict-prototypes -O2 -g -fomit-frame-pointer -c -o scripts/kconfig/kxgettext.o scripts/kconfig/kxgettext.c\' > scripts/kconfig/.kxgettext.o.tmp;
rm -f scripts/kconfig/.kxgettext.o.d;
mv -f scripts/kconfig/.kxgettext.o.tmp scripts/kconfig/.kxgettext.o.cmd
set -e; echo \' HOSTCC scripts/kconfig/mconf.o\';
gcc -Wp,-MD,scripts/kconfig/.mconf.o.d -Wall -Wstrict-prototypes -O2 -g -fomit-frame-pointer -c -o scripts/kconfig/mconf.o scripts/kconfig/mconf.c; scripts/basic/fixdep scripts/kconfig/.mconf.o.d scripts/kconfig/mconf.o
\'gcc -Wp,-MD,scripts/kconfig/.mconf.o.d -Wall -Wstrict-prototypes -O2 -g -fomit-frame-pointer -c -o scripts/kconfig/mconf.o scripts/kconfig/mconf.c\' > scripts/kconfig/.mconf.o.tmp; rm -f scripts/kconfig/.mconf.o.d;
mv -f scripts/kconfig/.mconf.o.tmp scripts/kconfig/.mconf.o.cmd set -e; echo \' HOSTCC scripts/kconfig/zconf.tab.o\';
gcc -Wp,-MD,scripts/kconfig/.zconf.tab.o.d -Wall -Wstrict-prototypes -O2 -g -fomit-frame-pointer -Iscripts/kconfig -c -o scripts/kconfig/zconf.tab.o scripts/kconfig/zconf.tab.c; scripts/basic/fixdep scripts/kconfig/.zconf.tab.o.d scripts/kconfig/zconf.tab.o
\'gcc -Wp,-MD,scripts/kconfig/.zconf.tab.o.d -Wall -Wstrict-prototypes -O2 -g -fomit-frame-pointer -Iscripts/kconfig -c -o scripts/kconfig/zconf.tab.o scripts/kconfig/zconf.tab.c\' > scripts/kconfig/.zconf.tab.o.tmp;
rm -f scripts/kconfig/.zconf.tab.o.d;
mv -f scripts/kconfig/.zconf.tab.o.tmp scripts/kconfig/.zconf.tab.o.cmd set -e; echo \' HOSTLD scripts/kconfig/mconf\';
gcc -o scripts/kconfig/mconf scripts/kconfig/mconf.o scripts/kconfig/zconf.tab.o ; echo \'cmd_scripts/kconfig/mconf := gcc -o scripts/kconfig/mconf scripts/kconfig/mconf.o scripts/kconfig/zconf.tab.o \' > scripts/kconfig/.mconf.cmd
make -f scripts/Makefile.build obj=scripts/kconfig/lxdialog
set -e; echo \' HOSTLD scripts/kconfig/lxdialog/lxdialog\';
gcc -o scripts/kconfig/lxdialog/lxdialog scripts/kconfig/lxdialog/checklist.o scripts/kconfig/lxdialog/menubox.o scripts/kconfig/lxdialog/textbox.o scripts/kconfig/lxdialog/yesno.o scripts/kconfig/lxdialog/inputbox.o scripts/kconfig/lxdialog/util.o scripts/kconfig/lxdialog/lxdialog.o scripts/kconfig/lxdialog/msgbox.o -lncursesw ; echo \'cmd_scripts/kconfig/lxdialog/lxdialog := gcc -o scripts/kconfig/lxdialog/lxdialog scripts/kconfig/lxdialog/checklist.o scripts/kconfig/lxdialog/menubox.o scripts/kconfig/lxdialog/textbox.o scripts/kconfig/lxdialog/yesno.o scripts/kconfig/lxdialog/inputbox.o scripts/kconfig/lxdialog/util.o scripts/kconfig/lxdialog/lxdialog.o scripts/kconfig/lxdialog/msgbox.o -lncursesw \' > scripts/kconfig/lxdialog/.lxdialog.cmd /bin/sh /home/kk/share/bak/512c/scripts_0925/scripts/kconfig/lxdialog/check-lxdialog.sh -check gcc -DCURSES_LOC="<ncurses.h>" -DLOCALE -lncursesw :
gdb scripts/kconfig/mconf Config.in make -C /home/kk/share/bak/512c/scripts_0925 KBUILD_SRC= .kernelrelease
源代码
整个UI的节点保存在“rootmenu”为“head”节点的链表中,即“rootmenu”为跟节点,“rootmenu”没有兄弟节点及父节点。
struct menu { struct menu *next; //兄弟节点 struct menu *parent; //父节点 struct menu *list; //子节点链表,即下一级菜单的链表 struct symbol *sym; //节点符号 struct property *prompt; //节点提示符 struct expr *dep; //依赖 unsigned int flags; //char *help; struct file *file; int lineno; void *data; };
如下图的UI:
节点图:
(gdb) p rootmenu $25 = {next = 0x0, parent = 0x0, list = 0x806bfe0, sym = 0x0, prompt = 0x8063d00, dep = 0x0, flags = 0, file = 0x0, lineno = 0, data = 0x0}
(gdb) p *rootmenu.list $27 = {next = 0x8067e70, parent = 0x8062a80 <rootmenu>, list = 0x806c0f8, sym = 0x806bfa0, prompt = 0x806c058, dep = 0x0, flags = 1, file = 0x8067d98, lineno = 3, data = 0x0}
(gdb) p *rootmenu.list->prompt $29 = {next = 0x0, sym = 0x806bfa0, type = P_PROMPT, text = 0x806c040 "BUILD_RECORD", visible = {expr = 0x0, tri = yes}, expr = 0x0, menu = 0x806bfe0, file = 0x8067d98, lineno = 4}
(gdb) p *rootmenu.list->next->prompt $30 = {next = 0x0, sym = 0x8067e30, type = P_PROMPT, text = 0x8067ed0 "AQ", visible = {expr = 0x0, tri = yes}, expr = 0x0, menu = 0x8067e70, file = 0x8067df8, lineno = 4}
(gdb) p *rootmenu.list->next->next->prompt $31 = {next = 0x0, sym = 0x0, type = P_MENU, text = 0x8067ff0 "System Application", visible = {expr = 0x0, tri = no}, expr = 0x0, menu = 0x8068018, file = 0x8067fa8, lineno = 1}
(gdb) p *rootmenu.list->next->next->list->prompt $32 = {next = 0x0, sym = 0x8068078, type = P_PROMPT, text = 0x8068828 "System APP", visible = {expr = 0x0, tri = yes}, expr = 0x0, menu = 0x80687c8, file = 0x8067fa8, lineno = 4}
(gdb) p *rootmenu.list->next->next->list->next $33 = {next = 0x8068dd0, parent = 0x8068018, list = 0x0, sym = 0x8068ce8, prompt = 0x0, dep = 0x8068d58, flags = 1, file = 0x8067fa8, lineno = 17, data = 0x0}
(gdb) p *rootmenu.list->next->next->list->next->next->prompt $35 = {next = 0x0, sym = 0x0, type = P_MENU, text = 0x8068da8 "Product Location Select", visible = {expr = 0x0, tri = no}, expr = 0x0, menu = 0x8068dd0, file = 0x8067fa8, lineno = 22}
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