Merge pull request #276 from cpunion/libc

runtime: fix alias no effects on linux

c/c.go

@@ -97,13 +97,13 @@ func Qsort(base Pointer, count, elem uintptr, compar func(a, b Pointer) Int)
 
 // -----------------------------------------------------------------------------
 
-//go:linkname Stdin llgo_stdin
+//go:linkname Stdin stdin
 var Stdin FilePtr
 
-//go:linkname Stdout llgo_stdout
+//go:linkname Stdout stdout
 var Stdout FilePtr
 
-//go:linkname Stderr llgo_stderr
+//go:linkname Stderr stderr
 var Stderr FilePtr
 
 //go:linkname Printf C.printf

cl/_testrt/concat/out.ll

@@ -13,7 +13,7 @@ source_filename = "main"
 @3 = private unnamed_addr constant [6 x i8] c"Hello\00", align 1
 @4 = private unnamed_addr constant [2 x i8] c" \00", align 1
 @5 = private unnamed_addr constant [6 x i8] c"World\00", align 1
-@llgo_stderr = external global ptr
+@stderr = external global ptr
 @6 = private unnamed_addr constant [8 x i8] c"Hi, %s\0A\00", align 1
 
 define %"github.com/goplus/llgo/internal/runtime.String" @main.concat(%"github.com/goplus/llgo/internal/runtime.Slice" %0) {
@@ -119,7 +119,7 @@ _llgo_0:
   store i64 3, ptr %21, align 4
   %22 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %18, align 8
   %23 = call %"github.com/goplus/llgo/internal/runtime.String" @main.concat(%"github.com/goplus/llgo/internal/runtime.Slice" %22)
-  %24 = load ptr, ptr @llgo_stderr, align 8
+  %24 = load ptr, ptr @stderr, align 8
   %25 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %23, 1
   %26 = add i64 %25, 1
   %27 = alloca i8, i64 %26, align 1

internal/runtime/c/c.go

@@ -26,13 +26,13 @@ type (
 	FilePtr = unsafe.Pointer
 )
 
-//go:linkname Stdin llgo_stdin
+//go:linkname Stdin stdin
 var Stdin FilePtr
 
-//go:linkname Stdout llgo_stdout
+//go:linkname Stdout stdout
 var Stdout FilePtr
 
-//go:linkname Stderr llgo_stderr
+//go:linkname Stderr stderr
 var Stderr FilePtr
 
 //go:linkname Str llgo.cstr

internal/runtime/c/c_default.go

@@ -4,5 +4,5 @@
 package c
 
 const (
-	LLGoPackage = "decl: stdio_default.ll"
+	LLGoPackage = "decl: c_default.ll"
 )

internal/runtime/c/c_default.ll

@@ -4,6 +4,6 @@ source_filename = "github.com/goplus/llgo/internal/runtime/c"
 @__stderrp = external global ptr
 @__stdinp = external global ptr
 @__stdoutp = external global ptr
-@llgo_stdin = alias i8*, i8** @__stdinp
+@stdin = alias i8*, i8** @__stdinp
-@llgo_stdout = alias i8*, i8** @__stdoutp
+@stdout = alias i8*, i8** @__stdoutp
-@llgo_stderr = alias i8*, i8** @__stderrp
+@stderr = alias i8*, i8** @__stderrp

internal/runtime/c/c_linux.go

@@ -4,5 +4,5 @@
 package c
 
 const (
-	LLGoPackage = "decl: stdio_linux.ll"
+	LLGoPackage = "decl: c_linux.ll"
 )

internal/runtime/c/c_linux.ll

@@ -1,9 +1,2 @@
 ; ModuleID = 'github.com/goplus/llgo/internal/runtime/c'
 source_filename = "github.com/goplus/llgo/internal/runtime/c"
-
-@stderr = external global ptr
-@stdin = external global ptr
-@stdout = external global ptr
-@llgo_stdin = alias i8*, i8** @stdin
-@llgo_stdout = alias i8*, i8** @stdout
-@llgo_stderr = alias i8*, i8** @stderr