diff options
Diffstat (limited to 'lib/system/debugger.nim')
| -rw-r--r-- | lib/system/debugger.nim | 62 |
1 files changed, 32 insertions, 30 deletions
diff --git a/lib/system/debugger.nim b/lib/system/debugger.nim index 7b5169344..b18c61755 100644 --- a/lib/system/debugger.nim +++ b/lib/system/debugger.nim @@ -10,22 +10,23 @@ ## This file implements basic features for any debugger. type - TVarSlot* {.compilerproc, final.} = object ## a slot in a frame + VarSlot* {.compilerproc, final.} = object ## a slot in a frame address*: pointer ## the variable's address typ*: PNimType ## the variable's type name*: cstring ## the variable's name; for globals this is "module.name" - PExtendedFrame = ptr TExtendedFrame - TExtendedFrame = object # If the debugger is enabled the compiler + PExtendedFrame = ptr ExtendedFrame + ExtendedFrame = object # If the debugger is enabled the compiler # provides an extended frame. Of course # only slots that are # needed are allocated and not 10_000, # except for the global data description. f: TFrame - slots: array[0..10_000, TVarSlot] + slots: array[0..10_000, VarSlot] +{.deprecated: [TVarSlot: VarSlot, TExtendedFrame: ExtendedFrame].} var - dbgGlobalData: TExtendedFrame # this reserves much space, but + dbgGlobalData: ExtendedFrame # this reserves much space, but # for now it is the most practical way proc dbgRegisterGlobal(name: cstring, address: pointer, @@ -39,7 +40,7 @@ proc dbgRegisterGlobal(name: cstring, address: pointer, dbgGlobalData.slots[i].address = address inc(dbgGlobalData.f.len) -proc getLocal*(frame: PFrame; slot: int): TVarSlot {.inline.} = +proc getLocal*(frame: PFrame; slot: int): VarSlot {.inline.} = ## retrieves the meta data for the local variable at `slot`. CAUTION: An ## invalid `slot` value causes a corruption! result = cast[PExtendedFrame](frame).slots[slot] @@ -48,7 +49,7 @@ proc getGlobalLen*(): int {.inline.} = ## gets the number of registered globals. result = dbgGlobalData.f.len -proc getGlobal*(slot: int): TVarSlot {.inline.} = +proc getGlobal*(slot: int): VarSlot {.inline.} = ## retrieves the meta data for the global variable at `slot`. CAUTION: An ## invalid `slot` value causes a corruption! result = dbgGlobalData.slots[slot] @@ -56,16 +57,16 @@ proc getGlobal*(slot: int): TVarSlot {.inline.} = # ------------------- breakpoint support ------------------------------------ type - TBreakpoint* = object ## represents a break point + Breakpoint* = object ## represents a break point low*, high*: int ## range from low to high; if disabled ## both low and high are set to their negative values filename*: cstring ## the filename of the breakpoint var - dbgBP: array[0..127, TBreakpoint] # breakpoints + dbgBP: array[0..127, Breakpoint] # breakpoints dbgBPlen: int dbgBPbloom: int64 # we use a bloom filter to speed up breakpoint checking - + dbgFilenames*: array[0..300, cstring] ## registered filenames; ## 'nil' terminated dbgFilenameLen: int @@ -131,16 +132,16 @@ proc canonFilename*(filename: cstring): cstring = if fileMatches(result, filename): return result result = nil -iterator listBreakpoints*(): ptr TBreakpoint = +iterator listBreakpoints*(): ptr Breakpoint = ## lists all breakpoints. for i in 0..dbgBPlen-1: yield addr(dbgBP[i]) -proc isActive*(b: ptr TBreakpoint): bool = b.low > 0 -proc flip*(b: ptr TBreakpoint) = +proc isActive*(b: ptr Breakpoint): bool = b.low > 0 +proc flip*(b: ptr Breakpoint) = ## enables or disables 'b' depending on its current state. b.low = -b.low; b.high = -b.high -proc checkBreakpoints*(filename: cstring, line: int): ptr TBreakpoint = +proc checkBreakpoints*(filename: cstring, line: int): ptr Breakpoint = ## in which breakpoint (if any) we are. if (dbgBPbloom and line) != line: return nil for b in listBreakpoints(): @@ -149,29 +150,30 @@ proc checkBreakpoints*(filename: cstring, line: int): ptr TBreakpoint = # ------------------- watchpoint support ------------------------------------ type - THash = int - TWatchpoint {.pure, final.} = object + Hash = int + Watchpoint {.pure, final.} = object name: cstring address: pointer typ: PNimType - oldValue: THash + oldValue: Hash +{.deprecated: [THash: Hash, TWatchpoint: Watchpoint].} var - watchpoints: array [0..99, TWatchpoint] + watchpoints: array [0..99, Watchpoint] watchpointsLen: int -proc `!&`(h: THash, val: int): THash {.inline.} = +proc `!&`(h: Hash, val: int): Hash {.inline.} = result = h +% val result = result +% result shl 10 result = result xor (result shr 6) -proc `!$`(h: THash): THash {.inline.} = +proc `!$`(h: Hash): Hash {.inline.} = result = h +% h shl 3 result = result xor (result shr 11) result = result +% result shl 15 -proc hash(data: pointer, size: int): THash = - var h: THash = 0 +proc hash(data: pointer, size: int): Hash = + var h: Hash = 0 var p = cast[cstring](data) var i = 0 var s = size @@ -181,21 +183,21 @@ proc hash(data: pointer, size: int): THash = dec(s) result = !$h -proc hashGcHeader(data: pointer): THash = +proc hashGcHeader(data: pointer): Hash = const headerSize = sizeof(int)*2 result = hash(cast[pointer](cast[int](data) -% headerSize), headerSize) proc genericHashAux(dest: pointer, mt: PNimType, shallow: bool, - h: THash): THash + h: Hash): Hash proc genericHashAux(dest: pointer, n: ptr TNimNode, shallow: bool, - h: THash): THash = + h: Hash): Hash = var d = cast[ByteAddress](dest) case n.kind of nkSlot: result = genericHashAux(cast[pointer](d +% n.offset), n.typ, shallow, h) of nkList: result = h - for i in 0..n.len-1: + for i in 0..n.len-1: result = result !& genericHashAux(dest, n.sons[i], shallow, result) of nkCase: result = h !& hash(cast[pointer](d +% n.offset), n.typ.size) @@ -203,8 +205,8 @@ proc genericHashAux(dest: pointer, n: ptr TNimNode, shallow: bool, if m != nil: result = genericHashAux(dest, m, shallow, result) of nkNone: sysAssert(false, "genericHashAux") -proc genericHashAux(dest: pointer, mt: PNimType, shallow: bool, - h: THash): THash = +proc genericHashAux(dest: pointer, mt: PNimType, shallow: bool, + h: Hash): Hash = sysAssert(mt != nil, "genericHashAux 2") case mt.kind of tyString: @@ -255,7 +257,7 @@ proc genericHashAux(dest: pointer, mt: PNimType, shallow: bool, proc genericHash(dest: pointer, mt: PNimType): int = result = genericHashAux(dest, mt, false, 0) - + proc dbgRegisterWatchpoint(address: pointer, name: cstring, typ: PNimType) {.compilerproc.} = let L = watchPointsLen @@ -283,7 +285,7 @@ var ## Only code compiled with the ``debugger:on`` switch calls this hook. dbgWatchpointHook*: proc (watchpointName: cstring) {.nimcall.} - + proc checkWatchpoints = let L = watchPointsLen for i in 0.. <L: |