i386-elf/coff cross build

[CARERI/SED]

I encountered the same problem as you when I built cross-gcc on cygwin for target i386-rtems.

And I tracked the source code and found out why the compiler generates ".align 3", not  ".align 2^3" (that is ".align 8"):
The Makefile uses the file:	.../gcc/config/i386/bsd.h, in which there is one line 
	#define ASM_OUTPUT_ALIGN(FILE,LOG)	\
  		if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", (LOG))

And I think it doesn't fit the meaning of its comments above:
	/* This is how to output an assembler line
	   that says to advance the location counter
	   to a multiple of 2**LOG bytes.  */

So I changed the line into 
	#define ASM_OUTPUT_ALIGN(FILE,LOG)	\
  		if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))

and rebuilt gcc.
	The result was in expect.
	
	Is this a bug?

Su Wenming
Engineer
CARERI

mailto:careri@public.sta.net.cn



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