Add support for SerialPortLib that maps into POSIX StdIn and StdOut. Add a device path text to lib as a holding point waiting on getting it reviewed for other packages. Some minor fixes. Also map the FV as writable, so the Variable store becomes writable.

I plan to try and make only the Variable store and logs writable, and make the executable/compressed FV read only in a future checkin. 



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11760 6f19259b-4bc3-4df7-8a09-765794883524

4 files changed, 168 insertions, 4 deletions

diff --git a/InOsEmuPkg/Unix/Sec/EmuThunk.c b/InOsEmuPkg/Unix/Sec/EmuThunk.c
index abae70b89a..579f67fa1a 100644
--- a/InOsEmuPkg/Unix/Sec/EmuThunk.c
+++ b/InOsEmuPkg/Unix/Sec/EmuThunk.c
@@ -49,12 +49,75 @@ SecWriteStdErr (
 {
   ssize_t Return;
   
-  Return = write (1, (const void *)Buffer, (size_t)NumberOfBytes);
+  Return = write (STDERR_FILENO, (const void *)Buffer, (size_t)NumberOfBytes);
   
   return (Return == -1) ? 0 : Return;
 }
 
 
+EFI_STATUS
+SecConfigStdIn (
+  VOID
+  )
+{
+  struct termios tty;
+  
+  //
+  // Need to turn off line buffering, ECHO, and make it unbuffered.
+  //
+  tcgetattr (STDIN_FILENO, &tty);
+  tty.c_lflag &= ~(ICANON | ECHO);
+  tcsetattr (STDIN_FILENO, TCSANOW, &tty);
+  
+//  setvbuf (STDIN_FILENO, NULL, _IONBF, 0);
+  
+  // now ioctl FIONREAD will do what we need
+  return EFI_SUCCESS;
+}
+
+UINTN
+SecWriteStdOut (
+  IN UINT8     *Buffer,
+  IN UINTN     NumberOfBytes
+  )
+{
+  ssize_t Return;
+  
+  Return = write (STDOUT_FILENO, (const void *)Buffer, (size_t)NumberOfBytes);
+  
+  return (Return == -1) ? 0 : Return;
+}
+
+UINTN
+SecReadStdIn (
+  IN UINT8     *Buffer,
+  IN UINTN     NumberOfBytes
+  )
+{
+  ssize_t Return;
+  
+  Return = read (STDIN_FILENO, Buffer, (size_t)NumberOfBytes);
+  
+  return (Return == -1) ? 0 : Return;
+}
+
+BOOLEAN
+SecPollStdIn (
+  VOID
+  )
+{
+  int Result;
+  int Bytes;
+  
+  Result = ioctl (STDIN_FILENO, FIONREAD, &Bytes);
+  if (Result == -1) {
+    return FALSE;
+  }
+  
+  return (BOOLEAN)(Bytes > 0);
+}
+
+
 
 void
 settimer_handler (int sig)
@@ -287,6 +350,10 @@ SecGetNextProtocol (
 
 EMU_THUNK_PROTOCOL gEmuThunkProtocol = {
   GasketSecWriteStdErr,
+  GasketSecConfigStdIn,
+  GasketSecWriteStdOut,
+  GasketSecReadStdIn,
+  GasketSecPollStdIn,
   GasketSecPeCoffGetEntryPoint,
   GasketSecPeCoffRelocateImageExtraAction,
   GasketSecPeCoffUnloadImageExtraAction,
diff --git a/InOsEmuPkg/Unix/Sec/Gasket.h b/InOsEmuPkg/Unix/Sec/Gasket.h
index e506e774b6..5cc42dd575 100644
--- a/InOsEmuPkg/Unix/Sec/Gasket.h
+++ b/InOsEmuPkg/Unix/Sec/Gasket.h
@@ -21,11 +21,40 @@
 //

 

 UINTN

+EFIAPI

 GasketSecWriteStdErr (

   IN UINT8     *Buffer,

   IN UINTN     NumberOfBytes

   );

 

+EFI_STATUS

+EFIAPI

+GasketSecConfigStdIn (

+  VOID

+  );

+

+UINTN

+EFIAPI

+GasketSecWriteStdOut (

+  IN UINT8     *Buffer,

+  IN UINTN     NumberOfBytes

+  );

+  

+UINTN

+EFIAPI

+GasketSecReadStdIn (

+  IN UINT8     *Buffer,

+  IN UINTN     NumberOfBytes

+  );

+

+BOOLEAN

+EFIAPI

+GasketSecPollStdIn (

+  VOID

+  );

+

+

+

 RETURN_STATUS

 EFIAPI

 GasketSecPeCoffGetEntryPoint (

diff --git a/InOsEmuPkg/Unix/Sec/SecMain.c b/InOsEmuPkg/Unix/Sec/SecMain.c
index ff5eff0c07..41b66b3bc0 100644
--- a/InOsEmuPkg/Unix/Sec/SecMain.c
+++ b/InOsEmuPkg/Unix/Sec/SecMain.c
@@ -354,18 +354,19 @@ MapFile (
   VOID    *res;
   UINTN   FileSize;
 
-  fd = open (FileName, O_RDONLY);
+  fd = open (FileName, O_RDWR);
   if (fd < 0) {
     return EFI_NOT_FOUND;
   }
   FileSize = lseek (fd, 0, SEEK_END);
 
 
-  res = MapMemory (fd, FileSize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE);
+  res = MapMemory (fd, FileSize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_SHARED);
 
   close (fd);
 
-  if (res == MAP_FAILED) {
+  if (res == NULL) {
+    perror ("MapFile() Failed");
     return EFI_DEVICE_ERROR;
   }
   
diff --git a/InOsEmuPkg/Unix/Sec/X64/Gasket.S b/InOsEmuPkg/Unix/Sec/X64/Gasket.S
index e5515e259b..093b05ca07 100644
--- a/InOsEmuPkg/Unix/Sec/X64/Gasket.S
+++ b/InOsEmuPkg/Unix/Sec/X64/Gasket.S
@@ -60,6 +60,73 @@ ASM_PFX(GasketSecWriteStdErr):
   ret
 
 
+ASM_GLOBAL ASM_PFX(GasketSecConfigStdIn)
+ASM_PFX(GasketSecConfigStdIn):
+  pushq   %rbp            // stack frame is for the debugger
+  movq    %rsp, %rbp
+
+  pushq    %rsi          // %rsi & %rdi are volatile in Unix and callee-save in EFI ABI
+  pushq    %rdi
+
+  call  ASM_PFX(SecConfigStdIn)
+  
+  popq  %rdi            // restore state
+  popq  %rsi
+  popq  %rbp
+  ret
+
+ASM_GLOBAL ASM_PFX(GasketSecWriteStdOut)
+ASM_PFX(GasketSecWriteStdOut):
+  pushq   %rbp            // stack frame is for the debugger
+  movq    %rsp, %rbp
+
+  pushq    %rsi          // %rsi & %rdi are volatile in Unix and callee-save in EFI ABI
+  pushq    %rdi
+
+  movq    %rcx, %rdi    // Swizzle args 
+  movq    %rdx, %rsi     
+
+  call  ASM_PFX(SecWriteStdOut)
+  
+  popq  %rdi            // restore state
+  popq  %rsi
+  popq  %rbp
+  ret
+
+ASM_GLOBAL ASM_PFX(GasketSecReadStdIn)
+ASM_PFX(GasketSecReadStdIn):
+  pushq   %rbp            // stack frame is for the debugger
+  movq    %rsp, %rbp
+
+  pushq    %rsi          // %rsi & %rdi are volatile in Unix and callee-save in EFI ABI
+  pushq    %rdi
+
+  movq    %rcx, %rdi    // Swizzle args 
+  movq    %rdx, %rsi     
+
+  call  ASM_PFX(SecReadStdIn)
+  
+  popq  %rdi            // restore state
+  popq  %rsi
+  popq  %rbp
+  ret
+
+ASM_GLOBAL ASM_PFX(GasketSecPollStdIn)
+ASM_PFX(GasketSecPollStdIn):
+  pushq   %rbp            // stack frame is for the debugger
+  movq    %rsp, %rbp
+
+  pushq    %rsi          // %rsi & %rdi are volatile in Unix and callee-save in EFI ABI
+  pushq    %rdi
+
+  call  ASM_PFX(SecPollStdIn)
+  
+  popq  %rdi            // restore state
+  popq  %rsi
+  popq  %rbp
+  ret
+
+
 ASM_GLOBAL ASM_PFX(GasketSecSetTimer)
 ASM_PFX(GasketSecSetTimer):
   pushq   %rbp            // stack frame is for the debugger