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Author SHA1 Message Date
Omar Sandoval
4891a6341f typeindex: add method for getting type of literal 
This will be used for ProgramObject operators where one operand is not a
ProgramObject.
 2018-05-02 22:56:16 -07:00
Omar Sandoval
b060c9dcf7 typeindex: make sure we can find base types 
The compiler might call a base type by any variation of its name (e.g.,
long or long int). Make sure we find it no matter what it chose.
 2018-05-02 22:41:26 -07:00
Omar Sandoval
d7236962db type: fix BoolType.__repr__() 
It shouldn't include self.signed.
 2018-05-02 01:20:30 -07:00
Omar Sandoval
389f483dbb program: implement unary operators for ProgramObject 2018-05-01 23:52:02 -07:00
Omar Sandoval
eb32ef6756 program: pass TypeIndex to Program instead of callback 2018-05-01 23:42:25 -07:00
Omar Sandoval
e458348409 type: rename EnumType.compatible to compatible_name 
More descriptive but not too verbose.
 2018-05-01 21:07:38 -07:00
Omar Sandoval
90f6913242 program: convert value when creating rvalue 
This is useful for a few cases:

- We should make sure that the value of an object is actually valid for
  its type
- When casting, the value should be converted to the new type where
  appropriate
- For the upcoming ProgramObject operators
 2018-05-01 20:58:37 -07:00
Omar Sandoval
c3dbe939ad program: fix Program.object() type annotation 
It can also be used to create rvalues, so make the address optional.
 2018-05-01 20:56:50 -07:00
Omar Sandoval
812951c340 type: add Type.convert() 
For converting a value to a valid value of that type (i.e., casting).
 2018-05-01 20:49:49 -07:00
Omar Sandoval
68462da720 typeindex: add usual arithmetic conversions 
The rules are really subtle and not completely specified, so hopefully
this covers all of the corner cases... This will be used for
ProgramObject operators.
 2018-05-01 00:17:20 -07:00
Omar Sandoval
78a745588a type: add TypedefType.real_type() 
Instead of open-coding it in ProgramObject.
 2018-04-30 22:23:55 -07:00
Omar Sandoval
c49426359b type: add Type.unqualified() 
Used to get the same type with no qualifiers.
 2018-04-30 22:16:44 -07:00
Omar Sandoval
26d8e0f7e9 type: add compatible integer type to EnumType 2018-04-30 19:33:40 -07:00
Omar Sandoval
22ddd198ce type: rename BasicType to ArithmeticType 
This is more descriptive and allows for future expansion to complex
types.
 2018-04-30 19:11:52 -07:00
Omar Sandoval
da4ff78f36 type: make BoolType a subclass of IntType 
_Bool is a standard unsigned integer type.
 2018-04-30 19:05:24 -07:00
Omar Sandoval
cef86a18c0 Move from_dwarf_type{,_name}() logic to a class 2018-04-30 18:11:28 -07:00
Omar Sandoval
80d3058b17 type: canonicalize basic type names 
Instead of using whatever the compiler emits, make sure we are
consistent with naming.
 2018-04-30 00:01:18 -07:00
Omar Sandoval
e1673f9f29 typename: use a better canonical formatting for integer types 
I.e., omit "int" for "short", "long", and "long long".
 2018-04-29 23:56:31 -07:00
Omar Sandoval
8a7bf0edf7 program: implement ProgramObject.__iter__() 2018-04-28 23:18:49 -07:00
Omar Sandoval
41c74593b3 program: implement ProgramObject.__len__() 2018-04-28 23:12:53 -07:00
Omar Sandoval
322b35259b program: better error message for ProgramObject.__getattr__() on non-struct 
Instead of propagating the "not a struct or union" from member_(),
provide the usual attribute error message.
 2018-04-28 23:03:49 -07:00
Omar Sandoval
6ca83a3775 program: implement ProgramObject.__dir__() 2018-04-28 22:54:03 -07:00
Omar Sandoval
e38ddba9c6 type: fix pretty-print of array of structs 
We need to handle indentation like we do with nested structs.
 2018-04-28 22:42:01 -07:00
Omar Sandoval
650896b619 dwarfindex: fix variable shadowing warning 2018-04-15 23:32:53 -07:00
Omar Sandoval
bb22a8e417 Add more documentation 2018-04-15 23:21:57 -07:00
Omar Sandoval
0713c57217 Add version information 2018-04-15 15:30:54 -07:00
Omar Sandoval
a4768ba2a4 License under GPL-3.0 or later 2018-04-15 15:03:33 -07:00
Omar Sandoval
1d2b90e62b Document drgn.program and drgn.type more 2018-04-12 00:51:32 -07:00
Omar Sandoval
abc286df76 Rename Coredump{,Object} to Program{,Object} 2018-04-09 23:12:17 -07:00
Omar Sandoval
170df11650 type: cache calls to from_dwarf_type{,_name}() 
And CompilationUnit.die(), otherwise caching from_dwarf_type() is
completely ineffective. This speeds up scripts drastically.
 2018-04-09 22:52:18 -07:00
Omar Sandoval
4c9a454cd2 type{,name}: get rid of __eq__() 
We should only have these for testing.
 2018-04-09 22:49:39 -07:00
Omar Sandoval
f347a51399 type{,name}: make qualifiers a frozenset 2018-04-09 21:57:52 -07:00
Omar Sandoval
d5ba112e36 coredump: add rvalue objects 
Sometimes it's useful to have a computed object that does not exist in
the coredump itself (e.g., when doing pointer arithmetic). Introduce the
notion of "rvalues", which have an explicit value instead of an address.
 2018-04-09 21:14:23 -07:00
Omar Sandoval
366a706a96 type: replace Type.format() with Type.pretty(Type.read()) 
Most of the implementations of format() call read(). Make pretty() do
just the formatting part of format() and take the already read value.
 2018-04-09 21:02:03 -07:00
Omar Sandoval
226bdd20d6 coredump: fix spelling of container_of in exceptions 2018-04-09 19:59:42 -07:00
Omar Sandoval
89f58ffd4f coredump: don't open-code pointer value_() in __getitem__() 2018-04-09 19:39:45 -07:00
Omar Sandoval
b848134c49 Add (partial) support for function types 
The only part not implemented is function type name parsing.
 2018-04-08 23:04:08 -07:00
Omar Sandoval
d41137d6e2 type: format empty struct without newline 
This shows up in, e.g., Linux's struct lock_class_key if compiled
without lockdep.
 2018-04-07 15:36:46 -07:00
Omar Sandoval
76cba644a8 Reorganize packaging 2018-04-07 10:42:48 -07:00
Omar Sandoval
a655325b4c coredump: add Coredump.object() instead of exposing CoredumpObject constructor 2018-04-06 22:48:18 -07:00
Omar Sandoval
422c39823f type: allow reading incomplete array types 
Just return a zero-length array.
 2018-04-06 00:27:17 -07:00
Omar Sandoval
c6c7c080ce type: handle typedef bitfields 2018-04-06 00:24:48 -07:00
Omar Sandoval
a63fbdb975 coredump: raise better errors from CoredumpObject.__getattr__() 2018-04-06 00:22:31 -07:00
Omar Sandoval
e6a1ece77f type: don't eagerly repr compound types 
Something like struct list_head will trivially get into an infinite
recursion.
 2018-04-06 00:04:50 -07:00
Omar Sandoval
87d9058ba3 Add type annotations everywhere 2018-04-05 23:40:28 -07:00
Omar Sandoval
2bd81fd5fc coredump: push ELF/DWARF-specific logic out of Coredump 
Instead, take callbacks for looking up variables and reading memory.
While we're at it, get rid of TypeFactory and instead implement its
methods as functions taking a DwarfIndex.
 2018-04-05 00:52:00 -07:00
Omar Sandoval
f4e62cfc1b cli: include CoredumpObject in globals 
For constructing objects from computed addresses. This is required for,
e.g., Linux kernel percpu allocations.
 2018-04-05 00:25:52 -07:00
Omar Sandoval
3f6130a9b3 coredump: document Coredump and CoredumpObject 2018-04-05 00:22:56 -07:00
Omar Sandoval
65a8060a15 dwarfindex: fix heap overflow when reading abbreviation table 
We might need to reallocate the array to make room for the null
terminator and tag/children byte.
 2018-04-03 00:15:43 -07:00
Omar Sandoval
2d7a052356 dwarfindex: remove dependency on dwarf.h 2018-04-03 00:03:31 -07:00