Patch below adds support for newer gcc -march code generation options.
It adds options for pentium-mmx, pentium-pro, pentium2, pentium3 and pentium4.
(note: pII part depends or previous patch).
It just what Luca Barbieri did adding PII.
I have been running a PII optmized kernel on a dual PII@400 box and nothing
has broken for 2 days....
Patch follows:
--- linux-2.4.19-pre8-jam4/arch/i386/Makefile.orig 2002-05-26 11:39:23.000000000 +0200
+++ linux-2.4.19-pre8-jam4/arch/i386/Makefile 2002-05-26 11:43:06.000000000 +0200
@@ -43,23 +43,23 @@
endif
ifdef CONFIG_M586MMX
-CFLAGS += -march=i586
+CFLAGS += $(shell if $(CC) -march=pentium-mmx -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=pentium-mmx"; else echo "-march=i586"; fi)
endif
ifdef CONFIG_M686
-CFLAGS += -march=i686
+CFLAGS += $(shell if $(CC) -march=pentium-pro -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=pentium-pro; else echo "-march=i686"; fi)
endif
ifdef CONFIG_MPENTIUMII
-CFLAGS += -march=i686
+CFLAGS += $(shell if $(CC) -march=pentium2 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=pentium2"; else echo "-march=i686"; fi)
endif
ifdef CONFIG_MPENTIUMIII
-CFLAGS += -march=i686
+CFLAGS += $(shell if $(CC) -march=pentium3 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=pentium3"; else echo "-march=i686"; fi)
endif
ifdef CONFIG_MPENTIUM4
-CFLAGS += -march=i686
+CFLAGS += $(shell if $(CC) -march=pentium4 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=pentium4"; else echo "-march=i686"; fi)
endif
ifdef CONFIG_MK6
-- J.A. Magallon # Let the source be with you... mailto:jamagallon@able.es Mandrake Linux release 8.3 (Cooker) for i586 Linux werewolf 2.4.19-pre8-jam4 #2 SMP dom may 26 11:20:42 CEST 2002 i686 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/