kpatch/0001-support-compile-kpatch-on-aarch64.patch

From 1281e03a115ee04e8ddea9f88d0e4e16b2e5ce57 Mon Sep 17 00:00:00 2001
From: Zhipeng Xie <xiezhipeng1@huawei.com>
Date: Thu, 20 Dec 2018 04:55:38 +0000
Subject: [PATCH 01/21] support compile kpatch on aarch64

delete __x86_64__ to support compile kpatch on aarch64.

Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
---
 kpatch-build/Makefile             |  4 ++++
 kpatch-build/create-diff-object.c | 14 +-------------
 2 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/kpatch-build/Makefile b/kpatch-build/Makefile
index 7505e07..8efae94 100644
--- a/kpatch-build/Makefile
+++ b/kpatch-build/Makefile
@@ -14,6 +14,10 @@ ifeq ($(ARCH),x86_64)
 SOURCES += insn/insn.c insn/inat.c
 INSN     = insn/insn.o insn/inat.o
 insn/%.o: CFLAGS := $(filter-out -Wconversion, $(CFLAGS))
+else ifeq ($(ARCH),aarch64)
+SOURCES += insn/insn.c insn/inat.c
+INSN     = insn/insn.o insn/inat.o
+insn/%.o: CFLAGS := $(filter-out -Wconversion, $(CFLAGS))
 else ifeq ($(ARCH),ppc64le)
 SOURCES += gcc-plugins/ppc64le-plugin.c
 PLUGIN   = gcc-plugins/ppc64le-plugin.so
diff --git a/kpatch-build/create-diff-object.c b/kpatch-build/create-diff-object.c
index aedd07d..2707cdb 100644
--- a/kpatch-build/create-diff-object.c
+++ b/kpatch-build/create-diff-object.c
@@ -475,7 +475,6 @@ out:
 		log_debug("section %s has changed\n", sec->name);
 }
 
-#ifdef __x86_64__
 /*
  * Determine if a section has changed only due to a WARN* or might_sleep
  * macro call's embedding of the line number into an instruction operand.
@@ -586,7 +585,7 @@ static int kpatch_line_macro_change_only(struct section *sec)
 
 	return 1;
 }
-#elif __powerpc64__
+#if __powerpc64__
 #define PPC_INSTR_LEN 4
 #define PPC_RA_OFFSET 16
 
@@ -652,11 +651,6 @@ static int kpatch_line_macro_change_only(struct section *sec)
 
 	return 1;
 }
-#else
-static int kpatch_line_macro_change_only(struct section *sec)
-{
-	return 0;
-}
 #endif
 
 static void kpatch_compare_sections(struct list_head *seclist)
@@ -1215,7 +1209,6 @@ static void kpatch_compare_correlated_elements(struct kpatch_elf *kelf)
 	kpatch_compare_symbols(&kelf->symbols);
 }
 
-#ifdef __x86_64__
 static void rela_insn(const struct section *sec, const struct rela *rela,
 		      struct insn *insn)
 {
@@ -1239,7 +1232,6 @@ static void rela_insn(const struct section *sec, const struct rela *rela,
 			return;
 	}
 }
-#endif
 
 static bool is_callback_section(struct section *sec) {
 
@@ -1785,7 +1777,6 @@ static int jump_table_group_size(struct kpatch_elf *kelf, int offset)
 	return size;
 }
 
-#ifdef __x86_64__
 static int parainstructions_group_size(struct kpatch_elf *kelf, int offset)
 {
 	static int size = 0;
@@ -1820,7 +1811,6 @@ static int smp_locks_group_size(struct kpatch_elf *kelf, int offset)
 {
 	return 4;
 }
-#endif
 #ifdef __powerpc64__
 static int fixup_entry_group_size(struct kpatch_elf *kelf, int offset)
 {
@@ -1915,7 +1905,6 @@ static struct special_section special_sections[] = {
 		.name		= "__jump_table",
 		.group_size	= jump_table_group_size,
 	},
-#ifdef __x86_64__
 	{
 		.name		= ".smp_locks",
 		.group_size	= smp_locks_group_size,
@@ -1928,7 +1917,6 @@ static struct special_section special_sections[] = {
 		.name		= ".altinstructions",
 		.group_size	= altinstructions_group_size,
 	},
-#endif
 #ifdef __powerpc64__
 	{
 		.name		= "__ftr_fixup",
-- 
2.18.1