From de0bea007c446f40ecec90a2672e0a806d397e1a Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 10 Aug 2012 05:03:13 +0000 Subject: [PATCH] gdb: add completion handler for "handle" and "signal" The command line completion has spoiled me. Thus the lack of completion with the "handle" command annoys me. Patch! This does a few things: - adds a VEC_merge helper - adds a generic signal completer - adds a completion handler for the "handle" command - sets the completion handler for the "signal" command URL: http://sourceware.org/bugzilla/show_bug.cgi?id=10436 Signed-off-by: Mike Frysinger --- gdb/ChangeLog | 18 +++++++ gdb/common/vec.h | 72 +++++++++++++++++++++++++++ gdb/completer.c | 32 ++++++++++++ gdb/completer.h | 3 ++ gdb/infcmd.c | 3 +- gdb/infrun.c | 35 ++++++++++++- gdb/testsuite/ChangeLog | 5 ++ gdb/testsuite/gdb.base/completion.exp | 26 ++++++++++ 8 files changed, 192 insertions(+), 2 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index f1e503be000..17f9b083a55 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,21 @@ +2012-08-10 Mike Frysinger + + PR cli/10436: + * common/vec.h (VEC_merge): Define. + (DEF_VEC_ALLOC_FUNC_I): Add a merge helper. + (DEF_VEC_ALLOC_FUNC_P): Likewise. + (DEF_VEC_ALLOC_FUNC_O): Likewise. + * completer.c: Include gdb_signals.h. + (signal_completer): Define. + * completer.h (signal_completer): Add prototype. + * infcmd.c (_initialize_infcmd): Assign the command + completer for "signal" to handle_completer. + * infrun.c: Include completer.h. + (handle_completer): Define. + (_initialize_infrun): Declare a new local variable c. Store the + result of add_com("handle") to it. Assign the command + completer for "handle" to handle_completer. + 2012-08-09 Yao Qi * cli/cli-decode.c (set_cmd_prefix): New. diff --git a/gdb/common/vec.h b/gdb/common/vec.h index 49116e1f166..a99bcd6b7ae 100644 --- a/gdb/common/vec.h +++ b/gdb/common/vec.h @@ -210,6 +210,13 @@ #define VEC_copy(T,V) (VEC_OP(T,copy)(V)) +/* Merge two vectors. + VEC(T,A) *VEC_T_merge(VEC(T) *, VEC(T) *); + + Copy the live elements of both vectors into a new vector. The new + and old vectors need not be allocated by the same mechanism. */ +#define VEC_merge(T,V1,V2) (VEC_OP(T,merge)(V1, V2)) + /* Determine if a vector has additional capacity. int VEC_T_space (VEC(T) *v,int reserve) @@ -461,6 +468,28 @@ static inline VEC(T) *VEC_OP (T,copy) (VEC(T) *vec_) \ return new_vec_; \ } \ \ +static inline VEC(T) *VEC_OP (T,merge) (VEC(T) *vec1_, VEC(T) *vec2_) \ +{ \ + if (vec1_ && vec2_) \ + { \ + size_t len_ = vec1_->num + vec2_->num; \ + VEC (T) *new_vec_ = NULL; \ + \ + /* We must request exact size allocation, hence the negation. */ \ + new_vec_ = (VEC (T) *) \ + vec_o_reserve (NULL, -len_, offsetof (VEC(T),vec), sizeof (T)); \ + \ + new_vec_->num = len_; \ + memcpy (new_vec_->vec, vec1_->vec, sizeof (T) * vec1_->num); \ + memcpy (new_vec_->vec + vec1_->num, vec2_->vec, \ + sizeof (T) * vec2_->num); \ + \ + return new_vec_; \ + } \ + else \ + return VEC_copy (T, vec1_ ? vec1_ : vec2_); \ +} \ + \ static inline void VEC_OP (T,free) \ (VEC(T) **vec_) \ { \ @@ -741,6 +770,27 @@ static inline VEC(T) *VEC_OP (T,copy) (VEC(T) *vec_) \ return new_vec_; \ } \ \ +static inline VEC(T) *VEC_OP (T,merge) (VEC(T) *vec1_, VEC(T) *vec2_) \ +{ \ + if (vec1_ && vec2_) \ + { \ + size_t len_ = vec1_->num + vec2_->num; \ + VEC (T) *new_vec_ = NULL; \ + \ + /* We must request exact size allocation, hence the negation. */ \ + new_vec_ = (VEC (T) *)(vec_p_reserve (NULL, -len_)); \ + \ + new_vec_->num = len_; \ + memcpy (new_vec_->vec, vec1_->vec, sizeof (T) * vec1_->num); \ + memcpy (new_vec_->vec + vec1_->num, vec2_->vec, \ + sizeof (T) * vec2_->num); \ + \ + return new_vec_; \ + } \ + else \ + return VEC_copy (T, vec1_ ? vec1_ : vec2_); \ +} \ + \ static inline int VEC_OP (T,reserve) \ (VEC(T) **vec_, int alloc_ VEC_ASSERT_DECL) \ { \ @@ -975,6 +1025,28 @@ static inline VEC(T) *VEC_OP (T,copy) (VEC(T) *vec_) \ return new_vec_; \ } \ \ +static inline VEC(T) *VEC_OP (T,merge) (VEC(T) *vec1_, VEC(T) *vec2_) \ +{ \ + if (vec1_ && vec2_) \ + { \ + size_t len_ = vec1_->num + vec2_->num; \ + VEC (T) *new_vec_ = NULL; \ + \ + /* We must request exact size allocation, hence the negation. */ \ + new_vec_ = (VEC (T) *) \ + vec_o_reserve (NULL, -len_, offsetof (VEC(T),vec), sizeof (T)); \ + \ + new_vec_->num = len_; \ + memcpy (new_vec_->vec, vec1_->vec, sizeof (T) * vec1_->num); \ + memcpy (new_vec_->vec + vec1_->num, vec2_->vec, \ + sizeof (T) * vec2_->num); \ + \ + return new_vec_; \ + } \ + else \ + return VEC_copy (T, vec1_ ? vec1_ : vec2_); \ +} \ + \ static inline void VEC_OP (T,free) \ (VEC(T) **vec_) \ { \ diff --git a/gdb/completer.c b/gdb/completer.c index b9f06997634..20025785eea 100644 --- a/gdb/completer.c +++ b/gdb/completer.c @@ -24,6 +24,7 @@ #include "language.h" #include "gdb_assert.h" #include "exceptions.h" +#include "gdb_signals.h" #include "cli/cli-decode.h" @@ -797,6 +798,37 @@ command_completer (struct cmd_list_element *ignore, strlen (text), handle_help); } +/* Complete on signals. */ + +VEC (char_ptr) * +signal_completer (struct cmd_list_element *ignore, + char *text, char *word) +{ + int i; + VEC (char_ptr) *return_val = NULL; + size_t len = strlen (word); + enum gdb_signal signum; + const char *signame; + + for (signum = GDB_SIGNAL_FIRST; signum != GDB_SIGNAL_LAST; ++signum) + { + /* Can't handle this, so skip it. */ + if (signum == GDB_SIGNAL_0) + continue; + + signame = gdb_signal_to_name (signum); + + /* Ignore the unknown signal case. */ + if (!signame || strcmp (signame, "?") == 0) + continue; + + if (strncasecmp (signame, word, len) == 0) + VEC_safe_push (char_ptr, return_val, xstrdup (signame)); + } + + return return_val; +} + /* Get the list of chars that are considered as word breaks for the current command. */ diff --git a/gdb/completer.h b/gdb/completer.h index 680bc2dc1a0..fddfa42eb7d 100644 --- a/gdb/completer.h +++ b/gdb/completer.h @@ -41,6 +41,9 @@ extern VEC (char_ptr) *location_completer (struct cmd_list_element *, extern VEC (char_ptr) *command_completer (struct cmd_list_element *, char *, char *); +extern VEC (char_ptr) *signal_completer (struct cmd_list_element *, + char *, char *); + extern char *get_gdb_completer_quote_characters (void); extern char *gdb_completion_word_break_characters (void); diff --git a/gdb/infcmd.c b/gdb/infcmd.c index 635e577eda1..d56503ca47a 100644 --- a/gdb/infcmd.c +++ b/gdb/infcmd.c @@ -3016,9 +3016,10 @@ Disconnect from a target.\n\ The target will wait for another debugger to connect. Not available for\n\ all targets.")); - add_com ("signal", class_run, signal_command, _("\ + c = add_com ("signal", class_run, signal_command, _("\ Continue program giving it signal specified by the argument.\n\ An argument of \"0\" means continue program without giving it a signal.")); + set_cmd_completer (c, signal_completer); add_com ("stepi", class_run, stepi_command, _("\ Step one instruction exactly.\n\ diff --git a/gdb/infrun.c b/gdb/infrun.c index cf6c062eee0..4f59a9261ea 100644 --- a/gdb/infrun.c +++ b/gdb/infrun.c @@ -57,6 +57,7 @@ #include "skip.h" #include "probe.h" #include "objfiles.h" +#include "completer.h" /* Prototypes for local functions */ @@ -6416,6 +6417,36 @@ Are you sure you want to change it? "), do_cleanups (old_chain); } +/* Complete the "handle" command. */ + +static VEC (char_ptr) * +handle_completer (struct cmd_list_element *ignore, + char *text, char *word) +{ + VEC (char_ptr) *vec_signals, *vec_keywords, *return_val; + static const char * const keywords[] = + { + "all", + "stop", + "ignore", + "print", + "pass", + "nostop", + "noignore", + "noprint", + "nopass", + NULL, + }; + + vec_signals = signal_completer (ignore, text, word); + vec_keywords = complete_on_enum (keywords, word, word); + + return_val = VEC_merge (char_ptr, vec_signals, vec_keywords); + VEC_free (char_ptr, vec_signals); + VEC_free (char_ptr, vec_keywords); + return return_val; +} + static void xdb_handle_command (char *args, int from_tty) { @@ -7059,13 +7090,14 @@ _initialize_infrun (void) { int i; int numsigs; + struct cmd_list_element *c; add_info ("signals", signals_info, _("\ What debugger does when program gets various signals.\n\ Specify a signal as argument to print info on that signal only.")); add_info_alias ("handle", "signals", 0); - add_com ("handle", class_run, handle_command, _("\ + c = add_com ("handle", class_run, handle_command, _("\ Specify how to handle a signal.\n\ Args are signals and actions to apply to those signals.\n\ Symbolic signals (e.g. SIGSEGV) are recommended but numeric signals\n\ @@ -7080,6 +7112,7 @@ Print means print a message if this signal happens.\n\ Pass means let program see this signal; otherwise program doesn't know.\n\ Ignore is a synonym for nopass and noignore is a synonym for pass.\n\ Pass and Stop may be combined.")); + set_cmd_completer (c, handle_completer); if (xdb_commands) { add_com ("lz", class_info, signals_info, _("\ diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 8d6aca0862f..3113c6a6ca3 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-08-10 Mike Frysinger + + PR cli/10436: + * gdb.base/completion.exp: Add tests for handle completion. + 2012-08-09 Yao Qi * gdb.mi/mi-cmd-param-changed.exp: New. diff --git a/gdb/testsuite/gdb.base/completion.exp b/gdb/testsuite/gdb.base/completion.exp index 9b9459c55ee..ccdc199e670 100644 --- a/gdb/testsuite/gdb.base/completion.exp +++ b/gdb/testsuite/gdb.base/completion.exp @@ -363,6 +363,32 @@ gdb_test_multiple "" "$test" { } } +set test "complete 'handle signal'" +send_gdb "handle sigq\t" +gdb_test_multiple "" "$test" { + -re "^handle sigqSIGQUIT $" { + send_gdb "\n" + gdb_test_multiple "" "$test" { + -re "SIGQUIT.*Quit.*$gdb_prompt $" { + pass "$test" + } + } + } +} + +set test "complete 'handle keyword'" +send_gdb "handle nos\t" +gdb_test_multiple "" "$test" { + -re "^handle nostop $" { + send_gdb "\n" + gdb_test_multiple "" "$test" { + -re "$gdb_prompt $" { + pass "$test" + } + } + } +} + # These tests used to try completing the shorter "p b-a". # Unfortunately, on some systems, there are .o files in system -- 2.30.2