Re: multiboot2.h includes stdint.h - not good

[Pavel Roskin <proski@gnu.org>]

On Mon, 2009-03-23 at 20:43 +0200, Vesa Jääskeläinen wrote:
> Pavel Roskin wrote:
> > By the way, I already noticed that the inclusion of stdint.h from
> > multiboot2.h is one of the problems preventing cross-compilation of GRUB
> > without the libc for the target.  Perhaps GRUB should provide its
> > replacement for stdint.h when compiling for the target.  Alternatively,
> > multiboot2.h should use GRUB types.
> 
> In grub ecosystem grub_* types should be used to specify arch dependent
> types. Where as I favor stdint.h types like uint8_t for many things, the
> idea for grub's own replacement is to easily detect wrong types used on
> compilation process.
> 
> So... stdint.h out... grub types in..

OK, let's fix the error messages for now.

It turns out *.lst files for *.S files are generated without ASM_FILE
defined.  Real compilation defines ASM_FILE.  Several *.S files define
ASM_FILE internally, but loader/i386/multiboot_helper.S is not one of
them.

It's hard to capture errors in the *.lst generation without splitting a
pipe into separate commands and introducing a temporary file, so it's
probably not worth the trouble.  Besides, any errors in the list
generation will be caught at the compilation stage if the compiler flags
are the same.  But they are not the same, and that's a problem.

ASM_FILE should be consistently defined for the same files in the
compilation rules and in the list generating rules in genmk.rb.

ChangeLog:

	* genmk.rb: Define ASM_FILE for *.S files when generating
	any lists.

Index: genmk.rb
===================================================================
--- genmk.rb	(revision 2043)
+++ genmk.rb	(working copy)
@@ -159,17 +159,17 @@
 
 #{command}: #{src} $(#{src}_DEPENDENCIES) gencmdlist.sh
 	set -e; \
-	  $(TARGET_CC) -I#{dir} -I$(srcdir)/#{dir} $(TARGET_CPPFLAGS) $(TARGET_#{flag}) $(#{prefix}_#{flag}) -E $< \
+	  $(TARGET_CC) -I#{dir} -I$(srcdir)/#{dir} $(TARGET_CPPFLAGS) #{extra_flags} $(TARGET_#{flag}) $(#{prefix}_#{flag}) -E $< \
 	  | sh $(srcdir)/gencmdlist.sh #{symbolic_name} > $@ || (rm -f $@; exit 1)
 
 #{fs}: #{src} $(#{src}_DEPENDENCIES) genfslist.sh
 	set -e; \
-	  $(TARGET_CC) -I#{dir} -I$(srcdir)/#{dir} $(TARGET_CPPFLAGS) $(TARGET_#{flag}) $(#{prefix}_#{flag}) -E $< \
+	  $(TARGET_CC) -I#{dir} -I$(srcdir)/#{dir} $(TARGET_CPPFLAGS) #{extra_flags} $(TARGET_#{flag}) $(#{prefix}_#{flag}) -E $< \
 	  | sh $(srcdir)/genfslist.sh #{symbolic_name} > $@ || (rm -f $@; exit 1)
 
 #{partmap}: #{src} $(#{src}_DEPENDENCIES) genpartmaplist.sh
 	set -e; \
-	  $(TARGET_CC) -I#{dir} -I$(srcdir)/#{dir} $(TARGET_CPPFLAGS) $(TARGET_#{flag}) $(#{prefix}_#{flag}) -E $< \
+	  $(TARGET_CC) -I#{dir} -I$(srcdir)/#{dir} $(TARGET_CPPFLAGS) #{extra_flags} $(TARGET_#{flag}) $(#{prefix}_#{flag}) -E $< \
 	  | sh $(srcdir)/genpartmaplist.sh #{symbolic_name} > $@ || (rm -f $@; exit 1)
 
 


-- 
Regards,
Pavel Roskin