kernel_optimize_test/arch/i386
Ingo Molnar 25165120f2 [PATCH] x86: add -freg-struct-return to CFLAGS
Jeremy Fitzhardinge suggested the use of -freg-struct-return, which does
structure-returns (such as when using pte_t) in registers instead of on
the stack.

that is indeed so, and this option reduced the kernel size a bit:

    text    data     bss     dec     hex filename
 4799506  543456 3760128 9103090  8ae6f2 vmlinux.before
 4798117  543456 3760128 9101701  8ae185 vmlinux.after

the resulting kernel booted fine on my testbox. Lets go for it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26 12:53:30 -08:00
..
boot Use ARRAY_SIZE() macro in i386 relocs.c file 2007-02-17 19:10:01 +01:00
crypto
kernel [PATCH] irq: Remove set_native_irq_info 2007-02-26 10:34:07 -08:00
lib
mach-default [PATCH] clockevents: i386 drivers 2007-02-16 08:13:59 -08:00
mach-es7000 ACPICA: Remove duplicate table manager 2007-02-02 21:14:28 -05:00
mach-generic [PATCH] i386: make apic probe function non-init 2007-01-11 01:52:44 +01:00
mach-visws
mach-voyager [PATCH] x86: fix PDA variables to work during boot 2007-01-22 19:39:36 -08:00
math-emu [PATCH] i386: avoid gcc extension 2007-02-13 13:26:24 +01:00
mm [PATCH] i386: Remove extern declaration from mm/discontig.c, put in header. 2007-02-13 13:26:26 +01:00
oprofile Replace remaining references to "driverfs" with "sysfs". 2007-02-17 19:13:42 +01:00
pci PCI: add systems for automatic breadth-first device sorting 2007-02-16 15:30:11 -08:00
power
defconfig [PATCH] i386: Update defconfig 2007-02-13 13:26:19 +01:00
Kconfig [PATCH] tick management: make broadcast dependent on local APIC 2007-02-19 14:22:43 -08:00
Kconfig.cpu [PATCH] i386: Remove unused kernel config option X86_XADD 2007-02-13 13:26:25 +01:00
Kconfig.debug [PATCH] i386: Paravirt debug defaults off 2007-02-13 13:26:22 +01:00
Makefile [PATCH] x86: add -freg-struct-return to CFLAGS 2007-02-26 12:53:30 -08:00
Makefile.cpu