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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-06 10:43:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-06 10:43:28 -0700
commitcc07aabc53978ae09a1d539237189f7c9841060a (patch)
tree6f47580d19ab5ad85f319bdb260615e991a93399 /arch/xtensa
parent9e47aaef0bd3a50a43626fa6b19e1f964ac173d6 (diff)
parent9358d755bd5cba8965ea79f2a446e689323409f9 (diff)
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux into next
Pull arm64 updates from Catalin Marinas: - Optimised assembly string/memory routines (based on the AArch64 Cortex Strings library contributed to glibc but re-licensed under GPLv2) - Optimised crypto algorithms making use of the ARMv8 crypto extensions (together with kernel API for using FPSIMD instructions in interrupt context) - Ftrace support - CPU topology parsing from DT - ESR_EL1 (Exception Syndrome Register) exposed to user space signal handlers for SIGSEGV/SIGBUS (useful to emulation tools like Qemu) - 1GB section linear mapping if applicable - Barriers usage clean-up - Default pgprot clean-up Conflicts as per Catalin. * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (57 commits) arm64: kernel: initialize broadcast hrtimer based clock event device arm64: ftrace: Add system call tracepoint arm64: ftrace: Add CALLER_ADDRx macros arm64: ftrace: Add dynamic ftrace support arm64: Add ftrace support ftrace: Add arm64 support to recordmcount arm64: Add 'notrace' attribute to unwind_frame() for ftrace arm64: add __ASSEMBLY__ in asm/insn.h arm64: Fix linker script entry point arm64: lib: Implement optimized string length routines arm64: lib: Implement optimized string compare routines arm64: lib: Implement optimized memcmp routine arm64: lib: Implement optimized memset routine arm64: lib: Implement optimized memmove routine arm64: lib: Implement optimized memcpy routine arm64: defconfig: enable a few more common/useful options in defconfig ftrace: Make CALLER_ADDRx macros more generic arm64: Fix deadlock scenario with smp_send_stop() arm64: Fix machine_shutdown() definition arm64: Support arch_irq_work_raise() via self IPIs ...
Diffstat (limited to 'arch/xtensa')
-rw-r--r--arch/xtensa/include/asm/ftrace.h14
1 files changed, 4 insertions, 10 deletions
diff --git a/arch/xtensa/include/asm/ftrace.h b/arch/xtensa/include/asm/ftrace.h
index 736b9d214d80..6c6d9a9f185f 100644
--- a/arch/xtensa/include/asm/ftrace.h
+++ b/arch/xtensa/include/asm/ftrace.h
@@ -12,24 +12,18 @@
#include <asm/processor.h>
-#define HAVE_ARCH_CALLER_ADDR
#ifndef __ASSEMBLY__
-#define CALLER_ADDR0 ({ unsigned long a0, a1; \
+#define ftrace_return_address0 ({ unsigned long a0, a1; \
__asm__ __volatile__ ( \
"mov %0, a0\n" \
"mov %1, a1\n" \
: "=r"(a0), "=r"(a1)); \
MAKE_PC_FROM_RA(a0, a1); })
+
#ifdef CONFIG_FRAME_POINTER
extern unsigned long return_address(unsigned level);
-#define CALLER_ADDR1 return_address(1)
-#define CALLER_ADDR2 return_address(2)
-#define CALLER_ADDR3 return_address(3)
-#else /* CONFIG_FRAME_POINTER */
-#define CALLER_ADDR1 (0)
-#define CALLER_ADDR2 (0)
-#define CALLER_ADDR3 (0)
-#endif /* CONFIG_FRAME_POINTER */
+#define ftrace_return_address(n) return_address(n)
+#endif
#endif /* __ASSEMBLY__ */
#ifdef CONFIG_FUNCTION_TRACER