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-rw-r--r--tools/perf/arch/x86/Makefile23
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/Makefile b/tools/perf/arch/x86/Makefile
index 269af2143735..6c9211b18ec0 100644
--- a/tools/perf/arch/x86/Makefile
+++ b/tools/perf/arch/x86/Makefile
@@ -4,3 +4,26 @@ endif
HAVE_KVM_STAT_SUPPORT := 1
PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
PERF_HAVE_JITDUMP := 1
+
+###
+# Syscall table generation
+#
+
+out := $(OUTPUT)arch/x86/include/generated/asm
+header := $(out)/syscalls_64.c
+sys := $(srctree)/tools/perf/arch/x86/entry/syscalls
+systbl := $(sys)/syscalltbl.sh
+
+# Create output directory if not already present
+_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
+
+$(header): $(sys)/syscall_64.tbl $(systbl)
+ @(test -d ../../kernel -a -d ../../tools -a -d ../perf && ( \
+ (diff -B arch/x86/entry/syscalls/syscall_64.tbl ../../arch/x86/entry/syscalls/syscall_64.tbl >/dev/null) \
+ || echo "Warning: x86_64's syscall_64.tbl differs from kernel" >&2 )) || true
+ $(Q)$(SHELL) '$(systbl)' $(sys)/syscall_64.tbl 'x86_64' > $@
+
+clean::
+ $(call QUIET_CLEAN, x86) $(RM) $(header)
+
+archheaders: $(header)