[PATCH] Building OpenBIOS on Mac OS X

[Programmingkid]

This patch allows for building OpenBIOS on Mac OS X, but without the "Trying"
output. It has been tested on Mac OS 10.6 and Debian Linux.

signed-off-by: John Arbuckle <programmingkidx(a)gmail.com>

Index: trunk/openbios-devel/config/scripts/switch-arch
===================================================================
--- trunk/openbios-devel/config/scripts/switch-arch	(revision 1133)
+++ trunk/openbios-devel/config/scripts/switch-arch	(working copy)
@@ -89,15 +89,25 @@
 
 archname()
 {
-    HOSTARCH=`uname -m | sed -e s/i.86/x86/ -e s/i86pc/x86/ \
-	-e s/sun4u/sparc64/ -e s/sparc$/sparc32/ \
-	-e s/arm.*/arm/ -e s/sa110/arm/ -e s/x86_64/amd64/ \
-	-e "s/Power Macintosh/ppc/"`
+ 	OS_NAME=`uname`
+	if test "$OS_NAME" = "Darwin"; then     # Can't depend on uname
-m on Mac OS X
+		IS_64BIT=`sysctl hw.cpu64bit_capable`
+		if test "$IS_64BIT" = "hw.cpu64bit_capable: 1"; then
+			HOSTARCH="amd64"
+		else
+			HOSTARCH="x86"
+		fi
+	else
+		 HOSTARCH=`uname -m | sed -e s/i.86/x86/ -e s/i86pc/x86/ \
+		-e s/sun4u/sparc64/ -e s/sparc$/sparc32/ \
+		-e s/arm.*/arm/ -e s/sa110/arm/ -e s/x86_64/amd64/ \
+		-e "s/Power Macintosh/ppc/"`
+	fi   
 }
 
 select_prefix()
 {
-    for TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}-linux- ${1}-elf-
${1}-eabi-
+    for TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}-linux- ${1}-elf-
${1}-eabi- ppc-elf-
     do
         if type ${TARGET}gcc > /dev/null 2>&1
         then

[Andreas Färber]

Am 08.05.2013 01:54, schrieb Programmingkid:
  
 This patch allows for building OpenBIOS on Mac OS X, but without the "Trying"
output. It has been tested on Mac OS 10.6 and Debian Linux.
 
 signed-off-by: John Arbuckle <programmingkidx(a)gmail.com>
 
 Index: trunk/openbios-devel/config/scripts/switch-arch
 ===================================================================
 --- trunk/openbios-devel/config/scripts/switch-arch	(revision 1133)
 +++ trunk/openbios-devel/config/scripts/switch-arch	(working copy)
 @@ -89,15 +89,25 @@
  
  archname()
  {
 -    HOSTARCH=`uname -m | sed -e s/i.86/x86/ -e s/i86pc/x86/ \
 -	-e s/sun4u/sparc64/ -e s/sparc$/sparc32/ \
 -	-e s/arm.*/arm/ -e s/sa110/arm/ -e s/x86_64/amd64/ \
 -	-e "s/Power Macintosh/ppc/"`
 + 	OS_NAME=`uname`
 +	if test "$OS_NAME" = "Darwin"; then     # Can't depend on uname
-m on Mac OS X
 +		IS_64BIT=`sysctl hw.cpu64bit_capable`
 +		if test "$IS_64BIT" = "hw.cpu64bit_capable: 1"; then
 +			HOSTARCH="amd64"
 +		else
 +			HOSTARCH="x86"
 +		fi
This is clearly wrong, Segher already pointed you to that: You are
wrongly assuming Darwin to mean x86/amd64 exclusively!
"hw.cpu64bit_capable: 1" can mean ppc64 just as well on 10.5, so it
would be best to check for Darwin 64-bitness *after* the original `uname
-m` architecture sanitization.

  +	else
 +		 HOSTARCH=`uname -m | sed -e s/i.86/x86/ -e s/i86pc/x86/ \
 +		-e s/sun4u/sparc64/ -e s/sparc$/sparc32/ \
 +		-e s/arm.*/arm/ -e s/sa110/arm/ -e s/x86_64/amd64/ \
 +		-e "s/Power Macintosh/ppc/"`
 +	fi   
  }
  
  select_prefix()
  {
 -    for TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}-linux- ${1}-elf-
${1}-eabi-
 +    for TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}-linux- ${1}-elf-
${1}-eabi- ppc-elf-
This has nothing to do with Mac OS X and thus, if we want this at all,
belongs in a separate patch. git-svn can help with that.

I think it is wrong that you are hardcoding ppc here, so it will fall
back to ppc-elf- prefix for sparc, etc. as well. powerpc-elf- prefix is
covered by ${1}-elf- here, so you'd need to check the call sites of
select_prefix() instead.

Regards,
Andreas

       do
          if type ${TARGET}gcc > /dev/null 2>&1
          then
-- 
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GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg

[Segher Boessenkool]

  "hw.cpu64bit_capable: 1" can mean ppc64 just
as well on 10.5, so it
 would be best to check for Darwin 64-bitness *after* the original  
 `uname
 -m` architecture sanitization.
It also doesn't exist before 10.5; on 10.4 you test for 64-bit
differently.

  -    for
TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}- 
 linux- ${1}-elf- ${1}-eabi-
 +    for TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}- 
 linux- ${1}-elf- ${1}-eabi- ppc-elf-
 This has nothing to do with Mac OS X and thus, if we want this at all,
 belongs in a separate patch. git-svn can help with that.

 I think it is wrong that you are hardcoding ppc here, so it will fall
 back to ppc-elf- prefix for sparc, etc. as well. powerpc-elf-  
 prefix is
 covered by ${1}-elf- here, so you'd need to check the call sites of
 select_prefix() instead.
And again, ppc-elf- is just a random made-up name.


Segher