diff options
| author | Daniel Palmer <daniel@0x0f.com> | 2025-04-16 20:42:40 +0900 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2025-07-06 12:50:50 +0200 |
| commit | 4fbdd56edf1f0b3e338c90a011bbae1a677ac884 (patch) | |
| tree | 0b4df0d5008d79dbb20a686c5e04edba2c340e0f | |
| parent | 83f672a7f69ec38b1bbb27221e342937f68c11c7 (diff) | |
m68k: Enable dead code elimination
Allow the experimental dead code elimination config to be enabled.
For my 68000 nommu config this frees up a few hundred K of memory
so seems worth while.
Boot and build tested on nommu and mmu enabled configs.
Before:
Memory: 5388K/8192K available (1986K kernel code, 114K rwdata,
244K rodata, 92K init, 41K bss, 2624K reserved, 0K cma-reserved)
After
Memory: 5684K/8192K available (1714K kernel code, 112K rwdata,
228K rodata, 92K init, 37K bss, 2328K reserved, 0K cma-reserved)
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/20250416114240.2929832-1-daniel@0x0f.com
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| -rw-r--r-- | arch/m68k/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index eb5bb6d36899..11835eb59d94 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -32,6 +32,7 @@ config M68K select HAVE_ASM_MODVERSIONS select HAVE_DEBUG_BUGVERBOSE select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED + select HAVE_LD_DEAD_CODE_DATA_ELIMINATION select HAVE_MOD_ARCH_SPECIFIC select HAVE_UID16 select MMU_GATHER_NO_RANGE if MMU |