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guile: Add 'history-append!' procedure. 

gdb/
2014-02-26  Ludovic Courtès  <ludo@gnu.org>

	* guile/scm-value.c (gdbscm_history_append_x): New function.
	(value_functions): Add it.

gdb/testsuite/
2014-02-26  Ludovic Courtès  <ludo@gnu.org>

	* gdb.guile/scm-value.exp (test_value_in_inferior): Add
	test for 'history-append!'.

gdb/doc/
2014-02-26  Ludovic Courtès  <ludo@gnu.org>

	* gdb/doc/guile.texi (Basic Guile): Document 'history-append!'.
This commit is contained in:
Ludovic Courtès 2014-02-18 23:35:46 +01:00
parent d763de106f
commit 7a5a839f3a
6 changed files with 56 additions and 0 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2014-02-26 Ludovic Courtès <ludo@gnu.org>
* guile/scm-value.c (gdbscm_history_append_x): New function.
(value_functions): Add it.
2014-02-27 Joel Brobecker <brobecker@adacore.com>
* dwarf2read.c (attr_value_as_address): New function.

4
gdb/doc/ChangeLog
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@ -1,3 +1,7 @@
2014-02-26 Ludovic Courtès <ludo@gnu.org>
* gdb/doc/guile.texi (Basic Guile): Document 'history-append!'.
2014-02-20 Joel Brobecker <brobecker@adacore.com>
* gdb.texinfo (Files): Document "add-shared-symbol-files"

9
gdb/doc/guile.texi
View File

@ -278,6 +278,15 @@ history contains the result of evaluating an expression from Guile's
command line.
@end deffn
@deffn {Scheme Procedure} history-append! value
Append @var{value}, an instance of @code{<gdb:value>}, to @value{GDBN}'s
value history. Return its index in the history.
Putting into history values returned by Guile extensions will allow
the user convenient access to those values via CLI history
facilities.
@end deffn
@deffn {Scheme Procedure} parse-and-eval expression
Parse @var{expression} as an expression in the current language,
evaluate it, and return the result as a @code{<gdb:value>}.

25
gdb/guile/scm-value.c
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@ -1297,6 +1297,27 @@ gdbscm_history_ref (SCM index)
return vlscm_scm_from_value (res_val);
}
/* (history-append! <gdb:value>) -> index
Append VALUE to GDB's value history. Return its index in the history. */
static SCM
gdbscm_history_append_x (SCM value)
{
int res_index = -1;
struct value *v;
volatile struct gdb_exception except;
v = vlscm_scm_to_value (value);
TRY_CATCH (except, RETURN_MASK_ALL)
{
res_index = record_latest_value (v);
}
GDBSCM_HANDLE_GDB_EXCEPTION (except);
return scm_from_int (res_index);
}
/* Initialize the Scheme value code. */
@ -1459,6 +1480,10 @@ Evaluates string in gdb and returns the result as a <gdb:value> object." },
"\
Return the specified value from GDB's value history." },
{ "history-append!", 1, 0, 0, gdbscm_history_append_x,
"\
Append the specified value onto GDB's value history." },
END_FUNCTIONS
};

5
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2014-02-26 Ludovic Courtès <ludo@gnu.org>
* gdb.guile/scm-value.exp (test_value_in_inferior): Add
test for 'history-append!'.
2014-02-26 Joel Brobecker <brobecker@adacore.com>
* gdb.dwarf2/dw2-abs-hi-pc-hello-dbg.S: New file.

8
gdb/testsuite/gdb.guile/scm-value.exp
View File

@ -59,6 +59,14 @@ proc test_value_in_inferior {} {
gdb_test "gu (print (value-field s \"a\"))" \
"= 3" "access element inside struct using string name"
# Append value in the value history.
gdb_scm_test_silent_cmd "gu (define i (history-append! (make-value 42)))" \
"append 42"
gdb_test "gu i" "\[0-9\]+"
gdb_test "gu (history-ref i)" "#<gdb:value 42>"
gdb_test "p \$" "= 42"
# Test dereferencing the argv pointer.
# Just get inferior variable argv the value history, available to guile.