kconfig/lkc_proto.h
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Dec 13 23:32:39 2011 +0100 (2011-12-13)
branch1.13
changeset 2847 c0bf2319af08
parent 943 1cca90ce0481
permissions -rw-r--r--
scripts: fix dumping execution backtrace

Dumping the backtrace has been broken since changeset #652e56d6d35a:
scripts: execute each steps in a subshell

We can spawn sub-sub-shells in some cases.

The way the fault handler works is to dump the backtrace, but to avoid
printing it once for every sub-shell (which could get quite confusing),
it simply exits when it detects that it is being run in a sub-shell,
leaving to the top-level shell the work to dump the backtrace.

Because each step is executed in its own sub-shell, the variable arrays
that contain the step name, the source file and line number, are lost
when exiting the per-step sub-shell.

Hence, the backtrace is currently limited to printing only the top-level
main procedure of the shell.

Fix this thus:
- when dumping the bckatraces for the steps & the functions, remember
it was dumped, and only dump it if it was not already dumped
- at the top-level shell, print the hints

Also, rename the top-level step label.

Reported-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 4193d6e6a17430a177fa88c287879c2c35e319f3)
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#include <stdarg.h>
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/* confdata.c */
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P(conf_parse,void,(const char *name));
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P(conf_read,int,(const char *name));
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P(conf_read_simple,int,(const char *name, int));
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P(conf_write_defconfig,int,(const char *name));
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P(conf_write,int,(const char *name));
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P(conf_write_autoconf,int,(void));
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P(conf_get_changed,bool,(void));
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P(conf_set_changed_callback, void,(void (*fn)(void)));
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P(conf_set_message_callback, void,(void (*fn)(const char *fmt, va_list ap)));
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/* menu.c */
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P(rootmenu,struct menu,);
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P(menu_is_visible, bool, (struct menu *menu));
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P(menu_has_prompt, bool, (struct menu *menu));
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P(menu_get_prompt,const char *,(struct menu *menu));
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P(menu_get_root_menu,struct menu *,(struct menu *menu));
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P(menu_get_parent_menu,struct menu *,(struct menu *menu));
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P(menu_has_help,bool,(struct menu *menu));
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P(menu_get_help,const char *,(struct menu *menu));
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P(get_symbol_str, void, (struct gstr *r, struct symbol *sym));
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P(get_relations_str, struct gstr, (struct symbol **sym_arr));
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P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
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/* symbol.c */
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P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
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P(sym_lookup,struct symbol *,(const char *name, int flags));
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P(sym_find,struct symbol *,(const char *name));
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P(sym_expand_string_value,const char *,(const char *in));
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P(sym_re_search,struct symbol **,(const char *pattern));
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P(sym_type_name,const char *,(enum symbol_type type));
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P(sym_calc_value,void,(struct symbol *sym));
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P(sym_get_type,enum symbol_type,(struct symbol *sym));
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P(sym_tristate_within_range,bool,(struct symbol *sym,tristate tri));
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P(sym_set_tristate_value,bool,(struct symbol *sym,tristate tri));
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P(sym_toggle_tristate_value,tristate,(struct symbol *sym));
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P(sym_string_valid,bool,(struct symbol *sym, const char *newval));
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P(sym_string_within_range,bool,(struct symbol *sym, const char *str));
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P(sym_set_string_value,bool,(struct symbol *sym, const char *newval));
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P(sym_is_changable,bool,(struct symbol *sym));
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P(sym_get_choice_prop,struct property *,(struct symbol *sym));
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P(sym_get_default_prop,struct property *,(struct symbol *sym));
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P(sym_get_string_value,const char *,(struct symbol *sym));
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P(prop_get_type_name,const char *,(enum prop_type type));
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/* expr.c */
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P(expr_compare_type,int,(enum expr_type t1, enum expr_type t2));
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P(expr_print,void,(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken));