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Commit fda89d9e authored by Chris Redmon's avatar Chris Redmon Committed by Catalin Marinas
Browse files

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: default avatarChris Redmon <credmonster@gmail.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 44176bb3

arch/arm64/include/asm/processor.h

+2 −0
Original line number Diff line number Diff line
@@ -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 {