From fda89d9efcabaafcbbb189e969d46dc634574b67 Mon Sep 17 00:00:00 2001 From: Chris Redmon Date: Thu, 16 Mar 2017 18:10:43 -0400 Subject: [PATCH] arm64: struct debug_info: Check CONFIG_HAVE_HW_BREAKPOINT Check if CONFIG_HAVE_HW_BREAKPOINT is enabled before compiling in extra data required for hardware breakpoints. Compiling out this code when hw breakpoints are disabled saves about 272 bytes per struct task_struct. Signed-off-by: Chris Redmon Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/processor.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index c97b8bd..9428b93 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -50,6 +50,7 @@ extern phys_addr_t arm64_dma_phys_limit; #define ARCH_LOW_ADDRESS_LIMIT (arm64_dma_phys_limit - 1) struct debug_info { +#ifdef CONFIG_HAVE_HW_BREAKPOINT /* Have we suspended stepping by a debugger? */ int suspended_step; /* Allow breakpoints and watchpoints to be disabled for this thread. */ @@ -58,6 +59,7 @@ struct debug_info { /* Hardware breakpoints pinned to this task. */ struct perf_event *hbp_break[ARM_MAX_BRP]; struct perf_event *hbp_watch[ARM_MAX_WRP]; +#endif }; struct cpu_context { -- 2.7.4