runtime: compatible difference of stdio symbols between linux and others

internal/runtime/c/c.go

@@ -19,10 +19,6 @@ package c
 import "C"
 import "unsafe"
 
-const (
-	LLGoPackage = "decl"
-)
-
 type (
 	Char    = int8
 	Int     = C.int
@@ -30,13 +26,13 @@ type (
 	FilePtr = unsafe.Pointer
 )
 
-//go:linkname Stdin __stdinp
+//go:linkname Stdin llgo_stdin
 var Stdin FilePtr
 
-//go:linkname Stdout __stdoutp
+//go:linkname Stdout llgo_stdout
 var Stdout FilePtr
 
-//go:linkname Stderr __stderrp
+//go:linkname Stderr llgo_stderr
 var Stderr FilePtr
 
 //go:linkname Str llgo.cstr

internal/runtime/c/c_default.go

@@ -0,0 +1,8 @@
+//go:build !linux
+// +build !linux
+
+package c
+
+const (
+	LLGoPackage = "decl: stdio_default.ll"
+)

internal/runtime/c/c_default.ll

@@ -0,0 +1,9 @@
+; ModuleID = 'github.com/goplus/llgo/internal/runtime/c'
+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
+@llgo_stdout = alias i8*, i8** @__stdoutp
+@llgo_stderr = alias i8*, i8** @__stderrp

internal/runtime/c/c_linux.go

@@ -0,0 +1,8 @@
+//go:build linux
+// +build linux
+
+package c
+
+const (
+	LLGoPackage = "decl: stdio_linux.ll"
+)

internal/runtime/c/c_linux.ll

@@ -0,0 +1,9 @@
+; 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