Some gdb_exception{,error,quit} tweaks
- Explicitly include <string> for std::string. - Use std::make_shared to construct gdb_exception::message instead of operator new, avoiding one heap allocation (2 instead of 3). Add 'const char *fmt, va_list ap' parameters to gdb_exception{,error,quit}'s ctors, and do the std::make_shared in the gdb_exception ctor. - gdb_exception_error's constructor does not need to have an 'enum return_reason' parameter, since it is always RETURN_ERROR, by definition. - Similarly, gdb_exception_quit's contructor does not need to have 'enum return_reason'/'enum errors' parameters. - In the gdb_exception_{quit,_error} ctors that take a gdb_exception as argument, assert that they're being passed a gdb_exception object of the right 'reason'. gdb/ChangeLog: 2019-04-08 Pedro Alves <palves@redhat.com> * common/common-exceptions.c (throw_exception): Don't create named object to throw; throw directly. (throw_it): Likewise. Don't initialize gdb_exception::message here, with new; pass FMT and AP to the ctor instead. * common/common-exceptions.h: Include <string>. (gdb_exception::gdb_exception(enum return_reason, enum errors, const char *, va_list)): New ctor. Use std::make_shared. (gdb_exception_error::gdb_exception_error(enum return_reason, enum errors)): Delete. (gdb_exception_error::gdb_exception_error(enum errors, const char *, va_list)): New. (gdb_exception_error::gdb_exception_error(const gdb_exception &)): Add assertion. (gdb_exception_quit::gdb_exception_quit(enum return_reason, enum errors)): Delete. (gdb_exception_quit::gdb_exception_quit(const char *, va_list)): New. (gdb_exception_quit::gdb_exception_quit(const gdb_exception &)): Add assertion.
This commit is contained in:
parent
3ae61bb67d
commit
56be6ea89c
|
@ -1,3 +1,24 @@
|
||||||
|
2019-04-08 Pedro Alves <palves@redhat.com>
|
||||||
|
|
||||||
|
* common/common-exceptions.c (throw_exception): Don't create
|
||||||
|
named object to throw; throw directly.
|
||||||
|
(throw_it): Likewise. Don't initialize gdb_exception::message
|
||||||
|
here, with new; pass FMT and AP to the ctor instead.
|
||||||
|
* common/common-exceptions.h: Include <string>.
|
||||||
|
(gdb_exception::gdb_exception(enum return_reason, enum errors,
|
||||||
|
const char *, va_list)): New ctor. Use std::make_shared.
|
||||||
|
(gdb_exception_error::gdb_exception_error(enum return_reason, enum
|
||||||
|
errors)): Delete.
|
||||||
|
(gdb_exception_error::gdb_exception_error(enum errors, const char
|
||||||
|
*, va_list)): New.
|
||||||
|
(gdb_exception_error::gdb_exception_error(const gdb_exception &)):
|
||||||
|
Add assertion.
|
||||||
|
(gdb_exception_quit::gdb_exception_quit(enum return_reason, enum
|
||||||
|
errors)): Delete.
|
||||||
|
(gdb_exception_quit::gdb_exception_quit(const char *, va_list)): New.
|
||||||
|
(gdb_exception_quit::gdb_exception_quit(const gdb_exception &)):
|
||||||
|
Add assertion.
|
||||||
|
|
||||||
2019-04-08 Tom Tromey <tom@tromey.com>
|
2019-04-08 Tom Tromey <tom@tromey.com>
|
||||||
|
|
||||||
* valops.c (value_rtti_indirect_type): Replace throw_exception
|
* valops.c (value_rtti_indirect_type): Replace throw_exception
|
||||||
|
|
|
@ -184,15 +184,9 @@ void
|
||||||
throw_exception (const gdb_exception &exception)
|
throw_exception (const gdb_exception &exception)
|
||||||
{
|
{
|
||||||
if (exception.reason == RETURN_QUIT)
|
if (exception.reason == RETURN_QUIT)
|
||||||
{
|
throw gdb_exception_quit (exception);
|
||||||
gdb_exception_quit ex (exception);
|
|
||||||
throw ex;
|
|
||||||
}
|
|
||||||
else if (exception.reason == RETURN_ERROR)
|
else if (exception.reason == RETURN_ERROR)
|
||||||
{
|
throw gdb_exception_error (exception);
|
||||||
gdb_exception_error ex (exception);
|
|
||||||
throw ex;
|
|
||||||
}
|
|
||||||
else
|
else
|
||||||
gdb_assert_not_reached ("invalid return reason");
|
gdb_assert_not_reached ("invalid return reason");
|
||||||
}
|
}
|
||||||
|
@ -202,17 +196,9 @@ throw_it (enum return_reason reason, enum errors error, const char *fmt,
|
||||||
va_list ap)
|
va_list ap)
|
||||||
{
|
{
|
||||||
if (reason == RETURN_QUIT)
|
if (reason == RETURN_QUIT)
|
||||||
{
|
throw gdb_exception_quit (fmt, ap);
|
||||||
gdb_exception_quit ex (reason, error);
|
|
||||||
ex.message.reset (new std::string (string_vprintf (fmt, ap)));
|
|
||||||
throw ex;
|
|
||||||
}
|
|
||||||
else if (reason == RETURN_ERROR)
|
else if (reason == RETURN_ERROR)
|
||||||
{
|
throw gdb_exception_error (error, fmt, ap);
|
||||||
gdb_exception_error ex (reason, error);
|
|
||||||
ex.message.reset (new std::string (string_vprintf (fmt, ap)));
|
|
||||||
throw ex;
|
|
||||||
}
|
|
||||||
else
|
else
|
||||||
gdb_assert_not_reached ("invalid return reason");
|
gdb_assert_not_reached ("invalid return reason");
|
||||||
}
|
}
|
||||||
|
|
|
@ -23,6 +23,7 @@
|
||||||
#include <setjmp.h>
|
#include <setjmp.h>
|
||||||
#include <new>
|
#include <new>
|
||||||
#include <memory>
|
#include <memory>
|
||||||
|
#include <string>
|
||||||
|
|
||||||
/* Reasons for calling throw_exceptions(). NOTE: all reason values
|
/* Reasons for calling throw_exceptions(). NOTE: all reason values
|
||||||
must be different from zero. enum value 0 is reserved for internal
|
must be different from zero. enum value 0 is reserved for internal
|
||||||
|
@ -123,6 +124,15 @@ struct gdb_exception
|
||||||
{
|
{
|
||||||
}
|
}
|
||||||
|
|
||||||
|
gdb_exception (enum return_reason r, enum errors e,
|
||||||
|
const char *fmt, va_list ap)
|
||||||
|
ATTRIBUTE_PRINTF (4, 0)
|
||||||
|
: reason (r),
|
||||||
|
error (e),
|
||||||
|
message (std::make_shared<std::string> (string_vprintf (fmt, ap)))
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
/* The copy constructor exists so that we can mark it "noexcept",
|
/* The copy constructor exists so that we can mark it "noexcept",
|
||||||
which is a good practice for any sort of exception object. */
|
which is a good practice for any sort of exception object. */
|
||||||
gdb_exception (const gdb_exception &other) noexcept
|
gdb_exception (const gdb_exception &other) noexcept
|
||||||
|
@ -214,27 +224,31 @@ extern int exceptions_state_mc_catch (struct gdb_exception *, int);
|
||||||
|
|
||||||
struct gdb_exception_error : public gdb_exception
|
struct gdb_exception_error : public gdb_exception
|
||||||
{
|
{
|
||||||
gdb_exception_error (enum return_reason r, enum errors e)
|
gdb_exception_error (enum errors e, const char *fmt, va_list ap)
|
||||||
: gdb_exception (r, e)
|
ATTRIBUTE_PRINTF (3, 0)
|
||||||
|
: gdb_exception (RETURN_ERROR, e, fmt, ap)
|
||||||
{
|
{
|
||||||
}
|
}
|
||||||
|
|
||||||
explicit gdb_exception_error (const gdb_exception &ex) noexcept
|
explicit gdb_exception_error (const gdb_exception &ex) noexcept
|
||||||
: gdb_exception (ex)
|
: gdb_exception (ex)
|
||||||
{
|
{
|
||||||
|
gdb_assert (ex.reason == RETURN_ERROR);
|
||||||
}
|
}
|
||||||
};
|
};
|
||||||
|
|
||||||
struct gdb_exception_quit : public gdb_exception
|
struct gdb_exception_quit : public gdb_exception
|
||||||
{
|
{
|
||||||
gdb_exception_quit (enum return_reason r, enum errors e)
|
gdb_exception_quit (const char *fmt, va_list ap)
|
||||||
: gdb_exception (r, e)
|
ATTRIBUTE_PRINTF (2, 0)
|
||||||
|
: gdb_exception (RETURN_QUIT, GDB_NO_ERROR, fmt, ap)
|
||||||
{
|
{
|
||||||
}
|
}
|
||||||
|
|
||||||
explicit gdb_exception_quit (const gdb_exception &ex) noexcept
|
explicit gdb_exception_quit (const gdb_exception &ex) noexcept
|
||||||
: gdb_exception (ex)
|
: gdb_exception (ex)
|
||||||
{
|
{
|
||||||
|
gdb_assert (ex.reason == RETURN_QUIT);
|
||||||
}
|
}
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue