diff options
| -rw-r--r-- | compiler/evalffi.nim | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/compiler/evalffi.nim b/compiler/evalffi.nim index d53fba816..58b996e60 100644 --- a/compiler/evalffi.nim +++ b/compiler/evalffi.nim @@ -10,6 +10,7 @@ ## This file implements the FFI part of the evaluator for Nim code. import ast, types, options, tables, dynlib, msgs, lineinfos +from os import getAppFilename import pkg/libffi when defined(windows): @@ -27,7 +28,7 @@ var gDllCache = initTable[string, LibHandle]() when defined(windows): - var gExeHandle = loadLib(os.getAppFilename()) + var gExeHandle = loadLib(getAppFilename()) else: var gExeHandle = loadLib() @@ -52,11 +53,13 @@ proc importcSymbol*(conf: ConfigRef, sym: PSym): PNode = # that contains the address instead: result = newNodeIT(nkPtrLit, sym.info, sym.typ) when true: + var libPathMsg = "" let lib = sym.annex if lib != nil and lib.path.kind notin {nkStrLit..nkTripleStrLit}: globalError(conf, sym.info, "dynlib needs to be a string lit") var theAddr: pointer if (lib.isNil or lib.kind == libHeader) and not gExeHandle.isNil: + libPathMsg = "current exe: " & getAppFilename() & " nor libc: " & libcDll # first try this exe itself: theAddr = gExeHandle.symAddr(name) # then try libc: @@ -65,9 +68,11 @@ proc importcSymbol*(conf: ConfigRef, sym: PSym): PNode = theAddr = dllhandle.symAddr(name) elif not lib.isNil: let dll = if lib.kind == libHeader: libcDll else: lib.path.strVal + libPathMsg = dll let dllhandle = getDll(conf, gDllCache, dll, sym.info) theAddr = dllhandle.symAddr(name) - if theAddr.isNil: globalError(conf, sym.info, "cannot import: " & name) + if theAddr.isNil: globalError(conf, sym.info, + "cannot import symbol: " & name & " from " & libPathMsg) result.intVal = cast[ByteAddress](theAddr) proc mapType(conf: ConfigRef, t: ast.PType): ptr libffi.Type = @@ -320,7 +325,7 @@ proc unpack(conf: ConfigRef, x: pointer, typ: PType, n: PNode): PNode = else: reset n[] result = n - result.kind = nkNilLit + result[] = TNode(kind: nkNilLit) result.typ = typ template awi(kind, v: untyped): untyped = aw(kind, v, intVal) |