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24 changed files with 2310 additions and 17 deletions
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31
0000-gensrc-skip-vector-instruction-in-str_do_gotpcrel.patch Normal file
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@ -0,0 +1,31 @@
From ca5e000a30eae58e84c98fef9c511ef61ec00fbe Mon Sep 17 00:00:00 2001
From: Chuan Zheng <zhengchuan@huawei.com>
Date: Mon, 26 Apr 2021 14:48:34 +0800
Subject: [PATCH] gensrc: skip vector instruction in str_do_gotpcrel
We might have "move (%rip) %0xmm0" in qemu hotpatch, which causes
gensrc failure in str_do_gotpcrel.
Fix it by skipping it because we do not need anything for vector command.
---
src/kpatch_gensrc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/kpatch_gensrc.c b/src/kpatch_gensrc.c
index a16b652..4f978f8 100644
--- a/src/kpatch_gensrc.c
+++ b/src/kpatch_gensrc.c
@@ -291,6 +291,11 @@ void str_do_gotpcrel(struct kp_file *f, char *dst, char *src)
goto out;
}
+ if (strstr(movdst.s, "%xmm") != NULL) {
+ /* Is SSE (%xmm0, etc), bail out */
+ goto out;
+ }
+
/* Use full 64-bit counterpart of the destination register
* as the auxiliary register */
get_full_reg(&movdst, auxreg);
--
2.27.0

32
0001-gensrc-we-should-add-align-while-FLAGS_PUSH_SECTION-.patch Normal file
View File

@ -0,0 +1,32 @@
From 9d601f4c697a9b2d926d92025bb43dd6ebf36033 Mon Sep 17 00:00:00 2001
From: Bihong Yu <yubihong@huawei.com>
Date: Tue, 18 Jan 2022 19:29:12 +0800
Subject: [PATCH] gensrc: we should add align while FLAGS_PUSH_SECTION flag is
set
In order to ensure the .kpatch.text readable and executable and
the .kpatch.data readable and writeable, we should make sure the
.kpatch.data is page-align. So we should add align while the
.kpatch.data being pushed for the first time.
Signed-off-by: Bihong Yu <yubihong@huawei.com>
---
src/kpatch_gensrc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/kpatch_gensrc.c b/src/kpatch_gensrc.c
index 32c7afc..bf1832a 100644
--- a/src/kpatch_gensrc.c
+++ b/src/kpatch_gensrc.c
@@ -448,7 +448,7 @@ static void change_section(struct kp_file *fout, struct section_desc *sect, int
s = ".kpatch.text,\"ax\",@progbits";
else {
s = ".kpatch.data,\"aw\",@progbits";
- if (!init_data_section && !(flags & FLAG_PUSH_SECTION)) {
+ if (!init_data_section && (flags & FLAG_PUSH_SECTION)) {
init_data_section = 1;
align = ".p2align\t12";
}
--
2.27.0

677
0002-fix-cblock-parse-for-LCOLD-LHOT-.cold.NUM-.init_arra.patch Normal file
View File

@ -0,0 +1,677 @@
From c95f6cd656e9ccfd2e2b7169626cbc2f50b5e24b Mon Sep 17 00:00:00 2001
From: ctyunsystem <ctyuncommiter05@chinatelecom.cn>
Date: Tue, 18 Jan 2022 20:41:46 -0500
Subject: [PATCH] fix cblock parse for LCOLD/LHOT/.cold.NUM, .init_array and
support gnu_unique_object
---
src/arch/aarch64/arch_parse.c | 24 +++-
src/arch/x86/arch_parse.c | 49 +++++++-
src/include/kpatch_parse.h | 2 +
src/kpatch_parse.c | 106 +++++++++++++++++-
tests/Makefile | 10 +-
tests/gcc_ge8_gensrc/Makefile | 26 +++++
.../cold_func_suffix/cold_func_suffix.cpp | 48 ++++++++
.../gcc_ge8_gensrc/cold_func_suffix/sub_desc | 13 +++
.../gnu_unique_object/gnu_unique_object.cpp | 35 ++++++
.../gcc_ge8_gensrc/gnu_unique_object/sub_desc | 23 ++++
.../gcc_ge8_gensrc/init_array/init_array.cpp | 28 +++++
tests/gcc_ge8_gensrc/init_array/sub_desc | 13 +++
.../gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh | 51 +++++++++
13 files changed, 419 insertions(+), 9 deletions(-)
create mode 100644 tests/gcc_ge8_gensrc/Makefile
create mode 100644 tests/gcc_ge8_gensrc/cold_func_suffix/cold_func_suffix.cpp
create mode 100644 tests/gcc_ge8_gensrc/cold_func_suffix/sub_desc
create mode 100644 tests/gcc_ge8_gensrc/gnu_unique_object/gnu_unique_object.cpp
create mode 100644 tests/gcc_ge8_gensrc/gnu_unique_object/sub_desc
create mode 100644 tests/gcc_ge8_gensrc/init_array/init_array.cpp
create mode 100644 tests/gcc_ge8_gensrc/init_array/sub_desc
create mode 100755 tests/gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh
diff --git a/src/arch/aarch64/arch_parse.c b/src/arch/aarch64/arch_parse.c
index f91ef0c..66ccc7e 100644
--- a/src/arch/aarch64/arch_parse.c
+++ b/src/arch/aarch64/arch_parse.c
@@ -1,4 +1,10 @@
/******************************************************************************
+ * 2022.01.18 - add recog_func_attr() for count "%function"
+ * China Telecom, <luoyi2@chinatelecom.cn>
+ *
+ * 2021.12.13 - support the type of C++ "gnu_unique_object" variable in is_variable_start()
+ * China Telecom, <luoyi2@chinatelecom.cn>
+ *
* 2021.10.08 - enhance kpatch_gensrc and kpatch_elf and kpatch_cc code
* Huawei Technologies Co., Ltd. <zhengchuan@huawei.com>
*
@@ -43,11 +49,26 @@ int is_function_start(struct kp_file *f, int l, kpstr_t *nm)
func = func ? 1 : ctype(f, l) == DIRECTIVE_TYPE;
continue;
}
+
break;
}
return func;
}
+void recog_func_attr(struct kp_file *f, int i, kpstr_t *nm, int *cnt)
+{
+ kpstr_t func_nm, func_attr;
+
+ if(ctype(f, i) == DIRECTIVE_TYPE) {
+ kpstrset(&func_nm, "", 0);
+ kpstrset(&func_attr, "", 0);
+
+ get_type_args(cline(f, i), &func_nm, &func_attr);
+ if(!kpstrcmpz(&func_attr, "%function") && !kpstrcmp(&func_nm, nm)) /* verify name matches */
+ ++(*cnt);
+ }
+}
+
int is_data_def(char *s, int type)
{
kpstr_t t;
@@ -127,6 +148,7 @@ int is_variable_start(struct kp_file *f, int l, int *e, int *pglobl, kpstr_t *nm
s = cline(f, l);
if (*s == '\0' && l != l0)
continue;
+
switch (ctype(f, l)) {
case DIRECTIVE_TYPE:
case DIRECTIVE_GLOBL:
@@ -159,7 +181,7 @@ int is_variable_start(struct kp_file *f, int l, int *e, int *pglobl, kpstr_t *nm
return 1;
case DIRECTIVE_TYPE:
get_type_args(cline(f, l), &nm2, &attr);
- if (kpstrcmpz(&attr, "%object") && kpstrcmpz(&attr, "%tls_object"))
+ if (kpstrcmpz(&attr, "%object") && kpstrcmpz(&attr, "%tls_object") && kpstrcmpz(&attr, "%gnu_unique_object"))
return 0;
break;
case DIRECTIVE_GLOBL:
diff --git a/src/arch/x86/arch_parse.c b/src/arch/x86/arch_parse.c
index 15cf9fe..31caa46 100644
--- a/src/arch/x86/arch_parse.c
+++ b/src/arch/x86/arch_parse.c
@@ -1,4 +1,13 @@
/******************************************************************************
+ * 2022.01.18 - add recog_func_attr() for count "@function"
+ * China Telecom, <luoyi2@chinatelecom.cn>
+ *
+ * 2021.12.13 - support the type of C++ "gnu_unique_object" variable in is_variable_start()
+ * China Telecom, <luoyi2@chinatelecom.cn>
+ *
+ * 2021.12.13 - support the appearance of ".LCOLD*" or ".LHOT*" label in is_function_start() and is_variable_start()
+ * China Telecom, <luoyi2@chinatelecom.cn>
+ *
* 2021.10.08 - enhance kpatch_gensrc and kpatch_elf and kpatch_cc code
* Huawei Technologies Co., Ltd. <zhengchuan@huawei.com>
******************************************************************************/
@@ -37,11 +46,40 @@ int is_function_start(struct kp_file *f, int l, kpstr_t *nm)
func = func ? 1 : ctype(f, l) == DIRECTIVE_TYPE;
continue;
}
+
+ /* particularly: for "-freorder-functions" optimization under -O2/-O3/-Os,
+ ".LCOLD*" or ".LHOT*" label may appear at the head of function or variable cblock,
+ it should not be divided into an independent cblock belonging to ATTR or OTHER */
+ if(ctype(f, l) == DIRECTIVE_LABEL) {
+ s = cline(f, l);
+ if(strstr(s, ".LCOLD") || strstr(s, ".LHOT"))
+ continue;
+ }
+
break;
}
return func;
}
+void recog_func_attr(struct kp_file *f, int i, kpstr_t *nm, int *cnt)
+{
+ kpstr_t func_nm, func_attr;
+
+ if(ctype(f, i) == DIRECTIVE_TYPE) {
+ kpstrset(&func_nm, "", 0);
+ kpstrset(&func_attr, "", 0);
+
+ get_type_args(cline(f, i), &func_nm, &func_attr);
+ if(!kpstrcmpz(&func_attr, "@function")) {
+ if(func_nm.l > nm->l)
+ remove_cold_hot_suffix(&func_nm); /* remove .cold. / .hot. */
+
+ if(!kpstrcmp(&func_nm, nm)) /* verify name matches */
+ ++(*cnt);
+ }
+ }
+}
+
int is_data_def(char *s, int type)
{
kpstr_t t;
@@ -90,6 +128,15 @@ int is_variable_start(struct kp_file *f, int l, int *e, int *pglobl, kpstr_t *nm
s = cline(f, l);
if (*s == '\0' && l != l0)
continue;
+
+ /* particularly: for "-freorder-functions" optimization under -O2/-O3/-Os,
+ ".LCOLD*" or ".LHOT*" label may appear at the head of function or variable cblock,
+ it should not be divided into an independent cblock belonging to ATTR or OTHER */
+ if(ctype(f, l) == DIRECTIVE_LABEL) {
+ if(strstr(s, ".LCOLD") || strstr(s, ".LHOT"))
+ continue;
+ }
+
switch (ctype(f, l)) {
case DIRECTIVE_TYPE:
case DIRECTIVE_GLOBL:
@@ -115,7 +162,7 @@ int is_variable_start(struct kp_file *f, int l, int *e, int *pglobl, kpstr_t *nm
break;
case DIRECTIVE_TYPE:
get_type_args(cline(f, l), &nm2, &attr);
- if (kpstrcmpz(&attr, "@object"))
+ if (kpstrcmpz(&attr, "@object") && kpstrcmpz(&attr, "@gnu_unique_object"))
return 0;
break;
case DIRECTIVE_GLOBL:
diff --git a/src/include/kpatch_parse.h b/src/include/kpatch_parse.h
index a36a015..c52a1e3 100644
--- a/src/include/kpatch_parse.h
+++ b/src/include/kpatch_parse.h
@@ -106,9 +106,11 @@ struct cblock {
void get_token(char **str, kpstr_t *x);
void __get_token(char **str, kpstr_t *x, const char *delim);
+void remove_cold_hot_suffix(kpstr_t *nm);
int is_function_start(struct kp_file *f, int l, kpstr_t *nm);
int is_function_end(struct kp_file *f, int l, kpstr_t *nm);
+void recog_func_attr(struct kp_file *f, int i, kpstr_t *nm, int *cnt);
void get_type_args(char *s, kpstr_t *nm, kpstr_t *attr);
int is_variable_start(struct kp_file *f, int l, int *e, int *globl, kpstr_t *nm);
diff --git a/src/kpatch_parse.c b/src/kpatch_parse.c
index ddf58f8..0885cbe 100644
--- a/src/kpatch_parse.c
+++ b/src/kpatch_parse.c
@@ -1,4 +1,10 @@
/******************************************************************************
+ * 2021.12.16 - kpatch_parse: enhance init_other_block() to extend function cblock to cover .init_array
+ * China Telecom, <luoyi2@chinatelecom.cn>
+ *
+ * 2021.12.13 - kpatch_parse: adjust the judgment for the end of function cblock in init_func_block()
+ * China Telecom, <luoyi2@chinatelecom.cn>
+ *
* 2021.10.11 - kpatch: fix code checker warning
* Huawei Technologies Co., Ltd. <zhengchuan@huawei.com>
*
@@ -72,6 +78,19 @@ void get_token(char **str, kpstr_t *x)
__get_token(str, x, delim);
}
+/* remove .cold. / .hot. in function name */
+void remove_cold_hot_suffix(kpstr_t *nm)
+{
+ if(!nm->s)
+ return;
+
+ char *suffix_loc = strstr(nm->s, ".cold.");
+ if(!suffix_loc)
+ suffix_loc = strstr(nm->s, ".hot.");
+ if(suffix_loc)
+ nm->l = suffix_loc - nm->s; /* remove .cold. / .hot. */
+}
+
/* ------------------------------ as directives parsing ---------------------------------- */
static struct {
@@ -303,13 +322,26 @@ static void init_func_block(struct kp_file *f, int *i, kpstr_t *nm)
int flags = 0;
struct cblock *blk;
- while (e < f->nr_lines - 1 && !is_function_end(f, e, nm)) {
+ int func_cnt = 0;
+
+ while (e < f->nr_lines - 1) {
if (ctype(f, e) == DIRECTIVE_GLOBL)
globl = 1;
if (ctype(f, e) == DIRECTIVE_KPFLAGS) {
flags |= get_kpatch_flags(cline(f, e));
cline(f, e)[0] = 0;
}
+
+ /* if compiling is optimized by -freorder-functions, e.g funcA, it will contains like ".type funcA.cold.xxx,@function" inside funcA,
+ and the end of funcA is not the first size directive matched with funcA. At present, use count for "@function" to judge*/
+ recog_func_attr(f, e, nm, &func_cnt);
+
+ if(is_function_end(f, e, nm)) {
+ --func_cnt;
+ if(!func_cnt)
+ break;
+ }
+
e++;
}
@@ -357,16 +389,76 @@ static void init_set_block(struct kp_file *f, int *i, kpstr_t *nm)
(*i)++;
}
+/*if funcA is needed in initialization, e.g constructor in C++, the function pointer will be put into .init_array section.
+the directives will appear right after the function size directive like this,
+
+ .size funcA, .-funcA
+ .section .init_array,"aw"
+ .align 8
+ .quad funcA
+
+since LCOLD* or LHOT* label may appear inside, and the label may change after patched, if classified as OTHER or VAR cblock,
+label change will conflict with the corresponding matching rules. also, we cannot set a proper VAR cblock name with no violation.
+it can only be treated as an extension of FUNC cblock. */
+
+#define EXT_INIARR_FLAG 1
+#define EXT_UPDATE_FLAG 2
+
static void init_other_block(struct kp_file *f, int *i)
{
int s = *i, e = *i;
+ int flag = 0;
+
kpstr_t nm;
+ kpstrset(&nm, "", 0);
- while (e < f->nr_lines && !(is_function_start(f, e, &nm) || is_variable_start(f, e, NULL, NULL, &nm)))
- e++;
+ char *line = NULL;
+ kpstr_t nm2;
+ kpstrset(&nm2, "", 0);
+
+ struct rb_node *node = NULL;
+ struct cblock *blk = NULL;
+
+ while (e < f->nr_lines && !(is_function_start(f, e, &nm) || is_variable_start(f, e, NULL, NULL, &nm))) {
+ if(ctype(f, e) == DIRECTIVE_SECTION && !strcmp(csect(f, e)->name, ".init_array"))
+ flag = EXT_INIARR_FLAG;
+
+ if(flag && ctype(f, e) == DIRECTIVE_OTHER) {
+ line = cline(f, e);
+
+ if (is_data_def(line, DIRECTIVE_OTHER)) {
+ get_token(&line, &nm2);
+ get_token(&line, &nm2);
+
+ node = rb_last(&f->cblocks_by_start);
+ if(!node) {
+ ++e;
+ break;
+ }
+
+ blk = rb_entry(node, struct cblock, rbs);
+ if(blk->type == CBLOCK_FUNC && !kpstrcmp(&blk->name, &nm2)) {
+ kplog(LOG_DEBUG, "Extend cblock %.*s (%d: %d-%d) to (%d: %d-%d)\n",
+ blk->name.l, blk->name.s, f->id, blk->start, blk->end-1, f->id, blk->start, e);
+ blk->end = ++e;
+ flag = EXT_UPDATE_FLAG;
+ break;
+ }
+ }
+ }
+ ++e;
+ }
+
+ if(flag == EXT_INIARR_FLAG) {
+ while (e < f->nr_lines && !(is_function_start(f, e, &nm) || is_variable_start(f, e, NULL, NULL, &nm)))
+ ++e;
+ }
+
+ if(flag != EXT_UPDATE_FLAG) {
+ kpstrset(&nm, "", 0);
+ cblock_add(f, s, e, &nm, CBLOCK_OTHER, 0);
+ }
- kpstrset(&nm, "", 0);
- cblock_add(f, s, e, &nm, CBLOCK_OTHER, 0);
*i = e;
}
@@ -696,6 +788,10 @@ int is_function_end(struct kp_file *f, int l, kpstr_t *nm)
char *s = cline(f, l);
get_token(&s, &nm2); /* skip command */
get_token(&s, &nm2);
+
+ if(nm2.l > nm->l)
+ remove_cold_hot_suffix(&nm2); /* remove .cold. / .hot. */
+
if (kpstrcmp(nm, &nm2)) /* verify name matches */
return 0;
diff --git a/tests/Makefile b/tests/Makefile
index c9edaf3..ce97dbd 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -8,13 +8,15 @@ ifeq ($(ARCH), aarch64)
SUBDIRS := $(filter-out $(AARCH64_NO_SUPPORT_TESTS), $(SUBDIRS))
endif
+GCC_GE8_GENSRC_TESTS := $(patsubst gcc_ge8_gensrc/%/sub_desc,%,$(wildcard gcc_ge8_gensrc/*/sub_desc))
+
KPATCH_PATH:=$(CURDIR)/../src
export KPATCH_PATH
all: run
list:
- @echo TESTS: $(SUBDIRS)
+ @echo TESTS: $(SUBDIRS) $(GCC_GE8_GENSRC_TESTS)
fastsleep.so: CFLAGS += -fPIC
fastsleep.so: fastsleep.c
@@ -26,6 +28,7 @@ clean: $(addprefix clean-,$(SUBDIRS))
$(CURDIR)/lpmakelevel-patchroot
rm -f fastsleep.so
make -C execve clean
+ make -C gcc_ge8_gensrc clean
clean-%: FORCE
make -C $* clean
@@ -98,6 +101,9 @@ run-lpmakelevel: RUNTESTSFLAGS := -d lpmake -p $(CURDIR)/lpmakelevel-patchroot
run-lpmakelevel: fastsleep.so
run-lpmakelevel: run-startup-lpmakelevel
-run: run-build run-patchlevel # run-lpmake run-lpmakelevel
+run-gcc_ge8_gensrc:
+ make -C gcc_ge8_gensrc
+
+run: run-build run-patchlevel run-gcc_ge8_gensrc # run-lpmake run-lpmakelevel
FORCE:
diff --git a/tests/gcc_ge8_gensrc/Makefile b/tests/gcc_ge8_gensrc/Makefile
new file mode 100644
index 0000000..9b0a3d9
--- /dev/null
+++ b/tests/gcc_ge8_gensrc/Makefile
@@ -0,0 +1,26 @@
+.PHONY: all clean
+
+SOURCE = $(wildcard */*.cpp)
+ASM_SOURCE = $(patsubst %.cpp, %.orig.s, $(SOURCE))
+
+GCC_REQUIRED=8
+GCC_MAJOR = $(shell echo __GNUC__ | $(CXX) -E -x c - | tail -n 1)
+GCC_MAJOR_GTE8 = $(shell expr $(GCC_MAJOR) \>= $(GCC_REQUIRED))
+
+COMPILE_COMMAND =
+TEST_COMMAND =
+
+ifeq ($(GCC_MAJOR_GTE8), 1)
+ COMPILE_COMMAND = $(CXX) $^ -S -O2 -std=c++17 -o $@
+endif
+
+all: test
+
+test: $(ASM_SOURCE)
+ ./run_gcc_ge8_gensrc_test.sh $(GCC_MAJOR) $(GCC_REQUIRED)
+
+clean:
+ rm -f $(shell find ./ -name *.s)
+
+%.orig.s: %.cpp
+ $(COMPILE_COMMAND)
\ No newline at end of file
diff --git a/tests/gcc_ge8_gensrc/cold_func_suffix/cold_func_suffix.cpp b/tests/gcc_ge8_gensrc/cold_func_suffix/cold_func_suffix.cpp
new file mode 100644
index 0000000..da1ed43
--- /dev/null
+++ b/tests/gcc_ge8_gensrc/cold_func_suffix/cold_func_suffix.cpp
@@ -0,0 +1,48 @@
+#include <iostream>
+
+extern int ext_func(int a, int b) __attribute__((cold));
+
+void swap(int &a, int &b)
+{
+ int temp = a;
+ a = b;
+ b = temp;
+}
+
+int cold_func(int a, int b)
+{
+ int c = 0;
+ if(__builtin_expect(a > 0, false))
+ c = a*2 + b;
+ else
+ c = ext_func(a, b) + 7;
+
+ return c;
+}
+
+void reverse(int &a)
+{
+ int org = a;
+ int res = 0;
+ while(org > 0)
+ {
+ res *= 10;
+ res += org % 10;
+ org /= 10;
+ }
+ a = res;
+}
+
+int main()
+{
+ int i = 9527;
+ int m = i/9;
+ int n = i%9;
+
+ int k = cold_func(m, n);
+ swap(m, n);
+ reverse(i);
+
+ std::cout << "k=" << k << " i=" << i << std::endl;
+ return 0;
+}
diff --git a/tests/gcc_ge8_gensrc/cold_func_suffix/sub_desc b/tests/gcc_ge8_gensrc/cold_func_suffix/sub_desc
new file mode 100644
index 0000000..0e25f29
--- /dev/null
+++ b/tests/gcc_ge8_gensrc/cold_func_suffix/sub_desc
@@ -0,0 +1,13 @@
+test LCOLD/LHOT func.cold.NUM for recent gcc(>=gcc 8) with __attribute__((cold)) and __builtin_expect
+
+steps:
+1) compile the source code:
+ g++ cold_func_suffix.cpp -S -O2 -o cold_func_suffix.s
+
+2) generate diff-asm file with no difference to check the result of cblock
+ kpatch_gensrc --os=rhel6 -i cold_func_suffix.s -i cold_func_suffix.s -o tmp.s
+
+3) tmp.s should be the same as cold_func_suffix.s, except the "#---var----" and "#----func---"
+ sed '/^#/d' tmp.s > same.s
+ diff cold_func_suffix.s same.s | wc -l
+the result should be 0
\ No newline at end of file
diff --git a/tests/gcc_ge8_gensrc/gnu_unique_object/gnu_unique_object.cpp b/tests/gcc_ge8_gensrc/gnu_unique_object/gnu_unique_object.cpp
new file mode 100644
index 0000000..f1b432d
--- /dev/null
+++ b/tests/gcc_ge8_gensrc/gnu_unique_object/gnu_unique_object.cpp
@@ -0,0 +1,35 @@
+#include <iostream>
+
+class StudentManage
+{
+public:
+ void setStudent(int id, int age)
+ {
+ student.stu_id = id;
+ student.stu_age = age;
+ }
+ void displayStudent()
+ {
+ std::cout << "student " << student.stu_id << " age : " << student.stu_age << std::endl;
+ }
+
+private:
+ struct Student
+ {
+ int stu_id;
+ int stu_age;
+ };
+
+ inline static thread_local Student student;
+};
+
+
+int main()
+{
+ StudentManage ms;
+ ms.setStudent(9581, 40);
+ ms.displayStudent();
+ ms.setStudent(9587, 36);
+ ms.displayStudent();
+ return 0;
+}
diff --git a/tests/gcc_ge8_gensrc/gnu_unique_object/sub_desc b/tests/gcc_ge8_gensrc/gnu_unique_object/sub_desc
new file mode 100644
index 0000000..60194f5
--- /dev/null
+++ b/tests/gcc_ge8_gensrc/gnu_unique_object/sub_desc
@@ -0,0 +1,23 @@
+test var with @gnu_unique_object assigned in .tbss by using a "inline static thread_local" data member
+
+note:
+1) the source code must compile with -std=c++17
+2) the test situation also can be constructed with a thread_local var in c++ template, eg:
+template <typename T>
+T func(T num1, T num2)
+{
+ thread_local T s0;
+ ... ...
+}
+
+steps:
+1) compile the source code:
+ g++ gnu_unique_object.cpp -S -O2 -std=c++17 -o gnu_unique_object.s
+
+2) generate diff-asm file with no difference to check the result of cblock
+ kpatch_gensrc --os=rhel6 -i gnu_unique_object.s -i gnu_unique_object.s -o tmp.s
+
+3) tmp.s should be the same as gnu_unique_object.s, except the "#---var----" and "#----func---"
+ sed '/^#/d' tmp.s > same.s
+ diff gnu_unique_object.s same.s | wc -l
+the result should be 0
\ No newline at end of file
diff --git a/tests/gcc_ge8_gensrc/init_array/init_array.cpp b/tests/gcc_ge8_gensrc/init_array/init_array.cpp
new file mode 100644
index 0000000..bfbe74c
--- /dev/null
+++ b/tests/gcc_ge8_gensrc/init_array/init_array.cpp
@@ -0,0 +1,28 @@
+#include <iostream>
+
+class CTest
+{
+public:
+ CTest():m_i2(1) {}
+ void print()
+ {
+ int sum = m_i1+m_i2;
+ std::cout << "sum is " << sum << std::endl;
+
+ int sub = m_i1-m_i2;
+ std::cout << "sub is " << sub << std::endl;
+ }
+private:
+ static int m_i1;
+ int m_i2;
+};
+
+int CTest::m_i1 = 10;
+
+int main()
+{
+ CTest ct1;
+ ct1.print();
+
+ return 0;
+}
diff --git a/tests/gcc_ge8_gensrc/init_array/sub_desc b/tests/gcc_ge8_gensrc/init_array/sub_desc
new file mode 100644
index 0000000..1ac5e0d
--- /dev/null
+++ b/tests/gcc_ge8_gensrc/init_array/sub_desc
@@ -0,0 +1,13 @@
+test .init_array cblock partition
+
+steps:
+1) compile the source code:
+ g++ init_array.cpp -S -O2 -o init_array.s
+
+2) generate diff-asm file with no difference to check the result of cblock
+ kpatch_gensrc --os=rhel6 -i init_array.s -i init_array.s -o tmp.s
+
+3) tmp.s should be the same as init_array.s, except the "#---var----" and "#----func---"
+ sed '/^#/d' tmp.s > same.s
+ diff init_array.s same.s | wc -l
+the result should be 0
\ No newline at end of file
diff --git a/tests/gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh b/tests/gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh
new file mode 100755
index 0000000..4534038
--- /dev/null
+++ b/tests/gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh
@@ -0,0 +1,51 @@
+#/bin/sh
+
+echo "the following case only for gcc $2 and later:"
+
+CURDIR=$(cd $(dirname $0); pwd)
+SOURCE_SET=$(find $CURDIR -name *.orig.s)
+TOTAL_CASE=$(find $CURDIR -name sub_desc | wc -l)
+KPATCH_GENSRC=$CURDIR/../../src/kpatch_gensrc
+
+OK_CNT=0
+FAIL_CNT=0
+SKIP_CNT=0
+
+if [ $1 -lt $2 ]; then
+ SKIP_CNT=$TOTAL_CASE
+ echo "gcc is too old to test, test: gcc $1 < required: gcc $2)"
+ echo "OK $OK_CNT FAIL $FAIL_CNT SKIP $SKIP_CNT TOTAL $TOTAL_CASE"
+ exit 0
+fi
+
+for SOURCE in $SOURCE_SET; do
+ FILENAME=${SOURCE##*/}
+ CASENAME=${FILENAME%.orig.s}
+ if [ $CASENAME == "cold_func_suffix" ]; then
+ KEY_WORD="\.cold."
+ else
+ KEY_WORD=$CASENAME
+ fi
+
+ KEY_WORD_LINE=$(grep -c $KEY_WORD $SOURCE)
+ if [ $KEY_WORD_LINE -lt "2" ]; then
+ echo "SKIP: $CASENAME, $KEY_WORD not found"
+ SKIP_CNT=$(($SKIP_CNT+1))
+ continue
+ fi
+
+ $KPATCH_GENSRC --os=rhel6 -i $SOURCE -i $SOURCE -o ${SOURCE/.orig/.o}
+ sed -i '/^#/d' ${SOURCE/.orig/.o}
+
+ DIFF_LINE=$(diff $SOURCE ${SOURCE/.orig/.o} | grep -c $KEY_WORD)
+ if [ $DIFF_LINE -gt "0" ]; then
+ echo "TEST $CASENAME IS FAIL"
+ FAIL_CNT=$(($FAIL_CNT+1))
+ else
+ echo "TEST $CASENAME IS OK"
+ OK_CNT=$(($OK_CNT+1))
+ fi
+done
+
+echo "OK $OK_CNT FAIL $FAIL_CNT SKIP $SKIP_CNT TOTAL $TOTAL_CASE"
+exit 0
\ No newline at end of file
--
2.27.0

30
0003-elf-add-section-adderss-for-STT_NOTYPE-type-of-symbo.patch Normal file
View File

@ -0,0 +1,30 @@
From 55b659c0b52a7c5f3fc493dd9c19ac76f09d0ccb Mon Sep 17 00:00:00 2001
From: Bihong Yu <yubihong@huawei.com>
Date: Sat, 22 Jan 2022 16:15:50 +0800
Subject: [PATCH] elf: add section adderss for STT_NOTYPE type of symbol
Sometimes, the symbol type of the new global static variable in the
patch may be STT_NOTYPE. We should add the section adderss to st_value
for this type symbol, otherwise, the calculated adderss for this type
symbol will be wrong, which may result in the patched process coredump.
Signed-off-by: Bihong Yu <yubihong@huawei.com>
---
src/kpatch_elf.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/kpatch_elf.c b/src/kpatch_elf.c
index 3ac56d9..5acf370 100644
--- a/src/kpatch_elf.c
+++ b/src/kpatch_elf.c
@@ -789,6 +789,7 @@ symbol_resolve(struct object_file *o,
break;
case STT_NOTYPE: // for Systemtap symbol _.stapsdt.base.kpatch
+ s->st_value += shdr[s->st_shndx].sh_addr;
break;
default:
--
2.27.0

58
0004-elf-strip-adapt-to-new-gcc-version-10.3.1.patch Normal file
View File

@ -0,0 +1,58 @@
From abfc33435c25e1515e35768c9a2d684aa72dc780 Mon Sep 17 00:00:00 2001
From: jiang-dawei15 <jiangdawei15@huawei.com>
Date: Mon, 28 Feb 2022 15:34:11 +0800
Subject: [PATCH 1/3] elf/strip: adapt to new gcc version(10.3.1)
This patch fix the following problems:
1. new libc so use new naming method,such as: libc.6.so -> libc.so.6;
2. destroy .rela section sh_flags INFO property;
Signed-off-by: Bihong Yu <yubihong@huawei.com>
---
src/kpatch_elf.c | 9 +++------
src/kpatch_strip.c | 5 +++--
2 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/src/kpatch_elf.c b/src/kpatch_elf.c
index 5acf370..260209a 100644
--- a/src/kpatch_elf.c
+++ b/src/kpatch_elf.c
@@ -180,16 +180,13 @@ static int
elf_object_is_interp_exception(struct object_file *o)
{
/* libc */
- if (!strncmp(o->name, "libc", 4) &&
- !strncmp(o->name + strlen(o->name) - 3, ".so", 3))
+ if (!strncmp(o->name, "libc.", 5))
return 1;
/* libpthread */
- if (!strncmp(o->name, "libpthread", 10) &&
- !strncmp(o->name + strlen(o->name) - 3, ".so", 3))
+ if (!strncmp(o->name, "libpthread.", 11))
return 1;
/* libdl */
- if (!strncmp(o->name, "libdl", 5) &&
- !strncmp(o->name + strlen(o->name) - 3, ".so", 3))
+ if (!strncmp(o->name, "libdl.", 6))
return 1;
return 0;
}
diff --git a/src/kpatch_strip.c b/src/kpatch_strip.c
index 5717e5a..6420af9 100644
--- a/src/kpatch_strip.c
+++ b/src/kpatch_strip.c
@@ -220,8 +220,9 @@ static int kpatch_strip(Elf *elfin, Elf *elfout)
} else {
kpinfo("don't need it\n");
shout.sh_type = SHT_NOBITS;
- shout.sh_link = 0;
- shout.sh_info = 0;
+ /* destroy the .rela section sh_flags INFO property */
+ if (!strncmp(scnname, ".rela", 5))
+ shout.sh_flags = SHF_ALLOC;
}
if (!gelf_update_shdr(scnout, &shout)) {
kperr("Failed to do gelf_update_shdr need");
--
2.23.0.windows.1

26
0005-gitignore-ignore-some-tests-and-binary.patch Normal file
View File

@ -0,0 +1,26 @@
From 04c295b9ca272dbd3525a6fa4be4869fe65d59aa Mon Sep 17 00:00:00 2001
From: jiang-dawei15 <jiangdawei15@huawei.com>
Date: Mon, 28 Feb 2022 15:56:54 +0800
Subject: [PATCH 2/3] gitignore: ignore some tests and binary
Signed-off-by: Bihong Yu <yubihong@huawei.com>
---
.gitignore | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/.gitignore b/.gitignore
index 065f093..696dfee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,4 +7,8 @@ src/libcare-cc
src/libcare-client
src/libcare-ctl
src/libcare-stresstest
+src/libcare-server
+src/libcare-dump
+src/arch.desc
tags
+tests/*
--
2.23.0.windows.1

82
0006-libcare-patch-make-adapt-libcare-patch-make-to-meson.patch Normal file
View File

@ -0,0 +1,82 @@
From 7b84765925c8b08f6bb061e66aabebdc814f0168 Mon Sep 17 00:00:00 2001
From: jiang-dawei15 <jiangdawei15@huawei.com>
Date: Mon, 28 Feb 2022 16:27:22 +0800
Subject: [PATCH 3/3] libcare-patch-make: adapt libcare-patch-make to meson
Signed-off-by: Bihong Yu <yubihong@huawei.com>
---
src/libcare-patch-make | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/src/libcare-patch-make b/src/libcare-patch-make
index 320ab88..ad1b566 100755
--- a/src/libcare-patch-make
+++ b/src/libcare-patch-make
@@ -53,6 +53,10 @@ prepare_env() {
LPMAKE_PATCHED_DIR="${LPMAKE_PATCHED_DIR-$PWD/.lpmaketmp/patched}"
LPMAKE_PATCHROOT="${LPMAKE_PATCHROOT-$PWD/patchroot}"
+ LIBCARE_CC=$CC
+ SYMBOLINK_CC=$(which cc)
+ REAL_CC=$(realpath $SYMBOLINK_CC)
+
export LPMAKE_ORIGINAL_DIR LPMAKE_PATCHED_DIR LPMAKE_PATCHROOT
mkdir -p "$LPMAKE_ORIGINAL_DIR" "$LPMAKE_PATCHED_DIR" "$LPMAKE_PATCHROOT"
@@ -79,6 +83,26 @@ restore_origs() {
trap "restore_origs" 0
+change_qemu_ld_flags() {
+ qemu_ld_flags=$(grep "^QEMU_LDFLAGS=" config-host.mak)
+ ret=$(echo $qemu_ld_flags | grep "\-Wl,-q")
+ if [[ "$ret" == "" ]];then
+ qemu_ld_flags="${qemu_ld_flags} -Wl,-q"
+ echo "change QEMU_LDFLAGS to '${qemu_ld_flags}'"
+ sed -i "/^QEMU_LDFLAGS=/c\\${qemu_ld_flags}" config-host.mak
+ fi
+}
+
+replace_cc_symbolink() {
+ unlink $SYMBOLINK_CC
+ ln -s $LIBCARE_CC $SYMBOLINK_CC
+}
+
+recover_cc_symbolink() {
+ unlink $SYMBOLINK_CC
+ ln -s $REAL_CC $SYMBOLINK_CC
+}
+
build_objects() {
restore_origs
@@ -93,6 +117,9 @@ build_objects() {
export KPATCH_STAGE=original
export KPCC_DBGFILTER_ARGS=""
+ #add '-Wl,-q' to LD_FLAGS
+ change_qemu_ld_flags
+
echo "${green}BUILDING ORIGINAL CODE${reset}"
make $LPMAKEFILE $JOBS_MAKE >$MAKE_OUTPUT 2>&1
@@ -237,10 +264,16 @@ main() {
prepare_env
+ # replace cc
+ replace_cc_symbolink
+
if test -z "$only_update"; then
build_objects "$@"
fi
build_kpatches
+
+ # recover cc
+ recover_cc_symbolink
}
main "$@"
--
2.23.0.windows.1

49
0007-kpatch_elf-compatible-with-older-versions-of-the-so-.patch Normal file
View File

@ -0,0 +1,49 @@
From b316ee94be9e6bdcda30400511593550de1eb29b Mon Sep 17 00:00:00 2001
From: jiang-dawei15 <jiangdawei15@huawei.com>
Date: Tue, 1 Mar 2022 16:07:37 +0800
Subject: [PATCH 1/2] kpatch_elf: compatible with older versions of the so
naming rules
New openEuler so naming rules have been changed, such as:
old so naming rules: libc-x.y.z.so
<----->
new so naming rules: libc.so.x.y.z
We need support this two version.
fix commit: abfc33435c25e1515e35768c9a2d684aa72dc780
Signed-off-by: Bihong Yu <yubihong@huawei.com>
---
src/kpatch_elf.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/src/kpatch_elf.c b/src/kpatch_elf.c
index 260209a..833f8e1 100644
--- a/src/kpatch_elf.c
+++ b/src/kpatch_elf.c
@@ -180,13 +180,19 @@ static int
elf_object_is_interp_exception(struct object_file *o)
{
/* libc */
- if (!strncmp(o->name, "libc.", 5))
+ if (!strncmp(o->name, "libc.so.", 8) ||
+ (!strncmp(o->name, "libc-", 5) &&
+ !strncmp(o->name + strlen(o->name) - 3, ".so", 3)))
return 1;
/* libpthread */
- if (!strncmp(o->name, "libpthread.", 11))
+ if (!strncmp(o->name, "libpthread.so.", 14) ||
+ (!strncmp(o->name, "libpthread-", 11) &&
+ !strncmp(o->name + strlen(o->name) - 3, ".so", 3)))
return 1;
/* libdl */
- if (!strncmp(o->name, "libdl.", 6))
+ if (!strncmp(o->name, "libdl.so.", 9) ||
+ (!strncmp(o->name, "libdl-", 6) &&
+ !strncmp(o->name + strlen(o->name) - 3, ".so", 3)))
return 1;
return 0;
}
--
2.27.0

123
0008-kpatch_parse-fix-failed-to-recognize-.cold.patch Normal file
View File

@ -0,0 +1,123 @@
From 6ebfe7d2af327dad9c9d4c5b2733ba55bd81571c Mon Sep 17 00:00:00 2001
From: jiang-dawei15 <jiangdawei15@huawei.com>
Date: Tue, 1 Mar 2022 20:00:58 +0800
Subject: [PATCH 2/2] kpatch_parse: fix failed to recognize .cold
the .cold suffix have two forms of expression: func.cold or
func.cold.NUM, we need to support recognizing both patterns.
Signed-off-by: Bihong Yu <yubihong@huawei.com>
---
src/arch/x86/arch_parse.c | 4 ++--
src/include/kpatch_parse.h | 2 +-
src/kpatch_parse.c | 14 ++++++--------
tests/gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh | 11 +++++++----
4 files changed, 16 insertions(+), 15 deletions(-)
diff --git a/src/arch/x86/arch_parse.c b/src/arch/x86/arch_parse.c
index 31caa46..aee82b8 100644
--- a/src/arch/x86/arch_parse.c
+++ b/src/arch/x86/arch_parse.c
@@ -72,10 +72,10 @@ void recog_func_attr(struct kp_file *f, int i, kpstr_t *nm, int *cnt)
get_type_args(cline(f, i), &func_nm, &func_attr);
if(!kpstrcmpz(&func_attr, "@function")) {
if(func_nm.l > nm->l)
- remove_cold_hot_suffix(&func_nm); /* remove .cold. / .hot. */
+ remove_cold_suffix(&func_nm); /* remove .cold */
if(!kpstrcmp(&func_nm, nm)) /* verify name matches */
- ++(*cnt);
+ ++(*cnt);
}
}
}
diff --git a/src/include/kpatch_parse.h b/src/include/kpatch_parse.h
index c52a1e3..d2225c5 100644
--- a/src/include/kpatch_parse.h
+++ b/src/include/kpatch_parse.h
@@ -106,7 +106,7 @@ struct cblock {
void get_token(char **str, kpstr_t *x);
void __get_token(char **str, kpstr_t *x, const char *delim);
-void remove_cold_hot_suffix(kpstr_t *nm);
+void remove_cold_suffix(kpstr_t *nm);
int is_function_start(struct kp_file *f, int l, kpstr_t *nm);
int is_function_end(struct kp_file *f, int l, kpstr_t *nm);
diff --git a/src/kpatch_parse.c b/src/kpatch_parse.c
index 0885cbe..43c885c 100644
--- a/src/kpatch_parse.c
+++ b/src/kpatch_parse.c
@@ -78,17 +78,15 @@ void get_token(char **str, kpstr_t *x)
__get_token(str, x, delim);
}
-/* remove .cold. / .hot. in function name */
-void remove_cold_hot_suffix(kpstr_t *nm)
+/* remove .cold in function name */
+void remove_cold_suffix(kpstr_t *nm)
{
if(!nm->s)
return;
-
- char *suffix_loc = strstr(nm->s, ".cold.");
- if(!suffix_loc)
- suffix_loc = strstr(nm->s, ".hot.");
+
+ char *suffix_loc = strstr(nm->s, ".cold");
if(suffix_loc)
- nm->l = suffix_loc - nm->s; /* remove .cold. / .hot. */
+ nm->l = suffix_loc - nm->s; /* remove .cold */
}
/* ------------------------------ as directives parsing ---------------------------------- */
@@ -790,7 +788,7 @@ int is_function_end(struct kp_file *f, int l, kpstr_t *nm)
get_token(&s, &nm2);
if(nm2.l > nm->l)
- remove_cold_hot_suffix(&nm2); /* remove .cold. / .hot. */
+ remove_cold_suffix(&nm2); /* remove .cold */
if (kpstrcmp(nm, &nm2)) /* verify name matches */
return 0;
diff --git a/tests/gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh b/tests/gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh
index 4534038..b508e99 100755
--- a/tests/gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh
+++ b/tests/gcc_ge8_gensrc/run_gcc_ge8_gensrc_test.sh
@@ -22,12 +22,12 @@ for SOURCE in $SOURCE_SET; do
FILENAME=${SOURCE##*/}
CASENAME=${FILENAME%.orig.s}
if [ $CASENAME == "cold_func_suffix" ]; then
- KEY_WORD="\.cold."
+ KEY_WORD="\.cold"
else
KEY_WORD=$CASENAME
fi
- KEY_WORD_LINE=$(grep -c $KEY_WORD $SOURCE)
+ KEY_WORD_LINE=$(grep -c "$KEY_WORD" $SOURCE)
if [ $KEY_WORD_LINE -lt "2" ]; then
echo "SKIP: $CASENAME, $KEY_WORD not found"
SKIP_CNT=$(($SKIP_CNT+1))
@@ -37,7 +37,7 @@ for SOURCE in $SOURCE_SET; do
$KPATCH_GENSRC --os=rhel6 -i $SOURCE -i $SOURCE -o ${SOURCE/.orig/.o}
sed -i '/^#/d' ${SOURCE/.orig/.o}
- DIFF_LINE=$(diff $SOURCE ${SOURCE/.orig/.o} | grep -c $KEY_WORD)
+ DIFF_LINE=$(diff $SOURCE ${SOURCE/.orig/.o} | grep -c "$KEY_WORD")
if [ $DIFF_LINE -gt "0" ]; then
echo "TEST $CASENAME IS FAIL"
FAIL_CNT=$(($FAIL_CNT+1))
@@ -48,4 +48,7 @@ for SOURCE in $SOURCE_SET; do
done
echo "OK $OK_CNT FAIL $FAIL_CNT SKIP $SKIP_CNT TOTAL $TOTAL_CASE"
-exit 0
\ No newline at end of file
+if [ $FAIL_CNT -ne 0 ]; then
+ exit 1
+fi
+exit 0
--
2.27.0

38
0009-help-modify-some-help-information.patch Normal file
View File

@ -0,0 +1,38 @@
From b7bd30b1ff5408e52cb67cee6ef0f8df73e5f802 Mon Sep 17 00:00:00 2001
From: jiang-dawei15 <jiangdawei15@huawei.com>
Date: Wed, 9 Mar 2022 11:50:02 +0800
Subject: [PATCH] help: modify some help information
---
src/kpatch_user.c | 1 -
src/libcare-patch-make | 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/src/kpatch_user.c b/src/kpatch_user.c
index 0bcc219..add74ea 100644
--- a/src/kpatch_user.c
+++ b/src/kpatch_user.c
@@ -376,7 +376,6 @@ static int usage(const char *err)
fprintf(stderr, " patch - apply patch to a user-space process\n");
fprintf(stderr, " unpatch- unapply patch from a user-space process\n");
fprintf(stderr, " info - show info on applied patches\n");
- fprintf(stderr, " server - listen on a unix socket for commands\n");
return -1;
}
diff --git a/src/libcare-patch-make b/src/libcare-patch-make
index ad1b566..9a75e1f 100755
--- a/src/libcare-patch-make
+++ b/src/libcare-patch-make
@@ -20,7 +20,7 @@ install with specified DESTDIR.
working on patch utils.
-d --destdir specify variable makefile system uses to specify destination
directory for the installation
- -i --id>-give this patch an unique id (less than 7 char)
+ -i --id give this patch an unique id (less than 7 char)
-b --buildid give this patch an unique build-id
-j --jobs specify variable makefile system jobs of compile, for example
`make -j 4` is startup `4` jobs to compile.
--
2.27.0

130
0010-libcare-patch-make-fix-some-bugs.patch Normal file
View File

@ -0,0 +1,130 @@
From 326fe36893de32fe8a8e95fcb5aee6df5c9a3fa7 Mon Sep 17 00:00:00 2001
From: Bihong Yu <yubihong@huawei.com>
Date: Sat, 19 Mar 2022 15:20:27 +0800
Subject: [PATCH] libcare-patch-make: fix some bugs
This patch fix following bugs:
1. origin build should not add '-Wl,-q' flags
2. recover config-host.mak after make kpatch for next building
Signed-off-by: Bihong Yu <yubihong@huawei.com>
Signed-off-by: yezengruan <yezengruan@huawei.com>
---
src/libcare-patch-make | 54 +++++++++++++++++++++++++-----------------
1 file changed, 32 insertions(+), 22 deletions(-)
diff --git a/src/libcare-patch-make b/src/libcare-patch-make
index 9a75e1f..03aa1d6 100755
--- a/src/libcare-patch-make
+++ b/src/libcare-patch-make
@@ -53,9 +53,9 @@ prepare_env() {
LPMAKE_PATCHED_DIR="${LPMAKE_PATCHED_DIR-$PWD/.lpmaketmp/patched}"
LPMAKE_PATCHROOT="${LPMAKE_PATCHROOT-$PWD/patchroot}"
- LIBCARE_CC=$CC
- SYMBOLINK_CC=$(which cc)
- REAL_CC=$(realpath $SYMBOLINK_CC)
+ LIBCARE_CC=$CC
+ SYMBOLINK_CC=$(which cc)
+ REAL_CC=$(realpath $SYMBOLINK_CC)
export LPMAKE_ORIGINAL_DIR LPMAKE_PATCHED_DIR LPMAKE_PATCHROOT
mkdir -p "$LPMAKE_ORIGINAL_DIR" "$LPMAKE_PATCHED_DIR" "$LPMAKE_PATCHROOT"
@@ -83,24 +83,30 @@ restore_origs() {
trap "restore_origs" 0
-change_qemu_ld_flags() {
- qemu_ld_flags=$(grep "^QEMU_LDFLAGS=" config-host.mak)
- ret=$(echo $qemu_ld_flags | grep "\-Wl,-q")
- if [[ "$ret" == "" ]];then
- qemu_ld_flags="${qemu_ld_flags} -Wl,-q"
- echo "change QEMU_LDFLAGS to '${qemu_ld_flags}'"
- sed -i "/^QEMU_LDFLAGS=/c\\${qemu_ld_flags}" config-host.mak
- fi
+replace_qemu_ld_flags() {
+ local qemu_ld_flags_old=$1
+ ret=$(echo $qemu_ld_flags_old | grep "\-Wl,-q")
+ if [[ "$ret" == "" ]]; then
+ local qemu_ld_flags="${qemu_ld_flags_old} -Wl,-q"
+ echo "replace QEMU_LDFLAGS to '${qemu_ld_flags}'"
+ sed -i "/^QEMU_LDFLAGS=/c\\${qemu_ld_flags}" config-host.mak
+ fi
+}
+
+recover_qemu_ld_flags() {
+ local qemu_ld_flags=$1
+ echo "recover QEMU_LDFLAGS to '${qemu_ld_flags}'"
+ sed -i "/^QEMU_LDFLAGS=/c\\${qemu_ld_flags}" config-host.mak
}
replace_cc_symbolink() {
- unlink $SYMBOLINK_CC
- ln -s $LIBCARE_CC $SYMBOLINK_CC
+ unlink $SYMBOLINK_CC
+ ln -s $LIBCARE_CC $SYMBOLINK_CC
}
recover_cc_symbolink() {
- unlink $SYMBOLINK_CC
- ln -s $REAL_CC $SYMBOLINK_CC
+ unlink $SYMBOLINK_CC
+ ln -s $REAL_CC $SYMBOLINK_CC
}
build_objects() {
@@ -117,9 +123,6 @@ build_objects() {
export KPATCH_STAGE=original
export KPCC_DBGFILTER_ARGS=""
- #add '-Wl,-q' to LD_FLAGS
- change_qemu_ld_flags
-
echo "${green}BUILDING ORIGINAL CODE${reset}"
make $LPMAKEFILE $JOBS_MAKE >$MAKE_OUTPUT 2>&1
@@ -146,6 +149,10 @@ build_objects() {
export KPATCH_STAGE=patched
export KPCC_APPEND_ARGS="-Wl,-q"
+ qemu_ld_flags_bak=$(grep "^QEMU_LDFLAGS=" config-host.mak)
+ #add '-Wl,-q' to LD_FLAGS
+ replace_qemu_ld_flags "$qemu_ld_flags_bak"
+
echo "${green}BUILDING PATCHED CODE${reset}"
make $LPMAKEFILE $JOBS_MAKE >$MAKE_OUTPUT 2>&1
@@ -153,6 +160,9 @@ build_objects() {
make $LPMAKEFILE $JOBS_MAKE install \
"$destdir=$LPMAKE_PATCHED_DIR" \
>$MAKE_OUTPUT 2>&1
+
+ # recover LD_FLAGS
+ recover_qemu_ld_flags "$qemu_ld_flags_bak"
}
build_kpatches() {
@@ -264,16 +274,16 @@ main() {
prepare_env
- # replace cc
- replace_cc_symbolink
+ # replace cc
+ replace_cc_symbolink
if test -z "$only_update"; then
build_objects "$@"
fi
build_kpatches
- # recover cc
- recover_cc_symbolink
+ # recover cc
+ recover_cc_symbolink
}
main "$@"
--
2.27.0

27
0011-selinux-enable-libcare-ctl-to-mprotect-qemu-process.patch Normal file
View File

@ -0,0 +1,27 @@
From 2724af94241663c9877e270c645dfcea124dc92c Mon Sep 17 00:00:00 2001
From: jiang-dawei15 <jiangdawei15@huawei.com>
Date: Tue, 29 Mar 2022 20:32:43 +0800
Subject: [PATCH] selinux: enable libcare-ctl to mprotect qemu process
Signed-off-by: Bihong Yu <yubihong@huawei.com>
---
dist/selinux/libcare.te | 3 +++
1 file changed, 3 insertions(+)
diff --git a/dist/selinux/libcare.te b/dist/selinux/libcare.te
index c240875..670c026 100644
--- a/dist/selinux/libcare.te
+++ b/dist/selinux/libcare.te
@@ -52,6 +52,9 @@ allow libcare_t libcare_file_t: lnk_file read_lnk_file_perms;
# to read patient's /proc entries and be able to attach to it
allow libcare_t self: capability { dac_override dac_read_search sys_ptrace };
+# need by remote mprotect
+allow svirt_t self : process execmem;
+
allow libcare_t svirt_t : process ptrace;
allow libcare_t svirt_t : dir list_dir_perms;
allow libcare_t svirt_t : file rw_file_perms;
--
2.27.0

38
0012-libcare-dump-change-the-return-value.patch Normal file
View File

@ -0,0 +1,38 @@
From 037c9ac7e9d3eaa072ae1edaad2bc22e18f4333a Mon Sep 17 00:00:00 2001
From: jiang-dawei15 <jiangdawei15@huawei.com>
Date: Thu, 5 May 2022 10:39:47 +0800
Subject: [PATCH] libcare-dump:change the return value
---
src/libcare-dump.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/libcare-dump.c b/src/libcare-dump.c
index 8736452..b712709 100644
--- a/src/libcare-dump.c
+++ b/src/libcare-dump.c
@@ -45,6 +45,7 @@ void usage()
int kpatch_dump_kpatch_header(const char *input_file)
{
+ int rv;
int fdi = -1;
int ret = -1;
int elf_size;
@@ -67,7 +68,12 @@ int kpatch_dump_kpatch_header(const char *input_file)
goto cleanup;
}
- ret = read(fdi, &kp, sizeof(struct kpatch_file));
+ rv = read(fdi, &kp, sizeof(struct kpatch_file));
+ if (rv <= 0) {
+ printf("Read kpatch file '%s' failed.\n", input_file);
+ goto cleanup;
+ }
+ ret = 0;
printf("%-25s %s\n", "Patch Name:", input_file);
printf("%-25s %s\n", "Magic:", kp.magic);
printf("%-25s %s\n", "Patch id:", kp.id);
--
2.27.0

459
0013-modify-pkgbuild-to-make-kpatch-for-RPM-based-packages.patch Normal file
View File

@ -0,0 +1,459 @@
From 0c414638168e0c1a006827daaae10c2ea4a8fc08 Mon Sep 17 00:00:00 2001
From: wangcichen <wangcichen_yewu@cmss.chinamobile.com>
Date: Mon, 9 May 2022 16:27:09 +0800
Subject: [PATCH] modify scripts/pkgbuild to make kpatch'es for the RPM-based
packages
1.support specify patch-id, build-id and sanity check
2.simplify script and put it into libcare devel package
---
scripts/example_info | 59 ++++++++++++++
scripts/pkgbuild | 179 ++++++++++++++++++++++++-------------------
2 files changed, 161 insertions(+), 77 deletions(-)
create mode 100644 scripts/example_info
diff --git a/scripts/example_info b/scripts/example_info
new file mode 100644
index 0000000..d848e33
--- /dev/null
+++ b/scripts/example_info
@@ -0,0 +1,59 @@
+#!/bin/bash
+
+KP_PROJECT=qemu
+KP_PROJECT_FORMAT=rpm
+KP_PROJECT_BUILD_ROOT=/var/libcareplus/qemu/rpmbuild
+KP_PROJECT_ORIG_RPMS=/var/libcareplus/qemu/qemu-6.2.0-29.oe2203
+KP_PROJECT_SPEC=qemu.spec
+
+# we choose plist filename as patch-id, eg: 220411 here
+KP_PROJECT_PLIST_FILE=/var/libcareplus/qemu/patch001/220506.plist
+KP_PROJECT_DIR=$KP_PROJECT_BUILD_ROOT/BUILD/qemu-6.2.0
+KP_PROJECT_BUILD_DIR=$KP_PROJECT_DIR/build/x86_64-softmmu
+KP_PROJECT_BUILD_ID=61fcf129b23f05a623e0bf696a03d3348f366348
+KP_SANITY_CHECK_STRICTLY=no
+KP_PROJECT_SOURCE_URL=
+KP_PROJECT_SOURCE=qemu-6.2.0-29.oe2203.src.rpm
+KP_PROJECT_BINARY=qemu-6.2.0-29.oe2203.x86_64.rpm
+
+KP_PROJECT_PREBUILT=build.orig-$KP_PROJECT_BINARY.tgz
+KP_PROJECT_PATCH=kpatch-${KP_PROJECT_BINARY%.*}.tgz
+KP_RPMBUILD_FLAGS="'--define=dist .oe2203'"
+#KP_RPM_REPOS="--enablerepo=base"
+
+
+KP_INSTALL_FILES="
+/qemu-system-x86_64 /usr/libexec/qemu-kvm
+"
+
+KPATCH_ASM_DIR=$KP_PROJECT_BUILD_ROOT/asmdir
+export KPATCH_ASM_DIR
+
+KPCC_PATCH_ARGS="--force-gotpcrel;--os=rhel6;--ignore-changes=banner,compilation"
+export KPCC_PATCH_ARGS
+
+KPCC_DBGFILTER_ARGS="--dbg-filter;--dbg-filter-eh-frame;--dbg-filter-gcc-except-table;--os=rhel6"
+export KPCC_DBGFILTER_ARGS
+
+kp_prebuild_hook() {
+ if test -z "$(command -v tar)"; then
+ echo "No tar command, Please install it first"
+ exit 1
+ fi
+ if test -z "$(command -v rpmbuild)"; then
+ echo "No rpmbuild command, Please install it first"
+ exit 1
+ fi
+}
+
+kp_build_hook() {
+ :
+}
+
+kp_prepare_test_binaries() {
+ :
+}
+
+kp_patch_test() {
+ :
+}
diff --git a/scripts/pkgbuild b/scripts/pkgbuild
index f91af57..1185cd9 100755
--- a/scripts/pkgbuild
+++ b/scripts/pkgbuild
@@ -1,4 +1,8 @@
#!/bin/bash
+# make kpatch'es for the RPM-based packages using spec file.
+# Each package contains the config file: info in their project directory,
+# like /var/libcareplus/qemu/info
+#
echo '+ set -x'
set -x
@@ -15,10 +19,10 @@ die() {
}
usage() {
- echo "Usage: build [--prebuild] [--help] [--arch ARCH] DIR"
+ echo "Makes kpatch'es for the RPM-based packages using spec file."
+ echo "Usage: libcare-pkgbuild [--prebuild] [--test] [--help] DIR"
echo " -p|--prebuild prebuild project for further use"
echo " -t|--test run unit and stress tests"
- echo " -a|--arch ARCH target architecture(x86_64 by default)"
echo " -h|--help print this message"
echo " DIR directory with project's info file and other resources"
}
@@ -26,7 +30,6 @@ usage() {
prepare() {
# Parse cmdline args
ACTION=build
- ARCH=x86_64
PDIR=
while [ "$1" != "" ]; do
case $1 in
@@ -36,10 +39,6 @@ prepare() {
-t|--test)
ACTION=test
;;
- -a|--arch)
- shift
- ARCH=$1
- ;;
-h|--help)
usage
exit 0
@@ -56,11 +55,8 @@ prepare() {
shift
done
- # Export env vars that are needed during the build
- SCRIPTS="$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd)"
- LIBCARE_DIR="${LIBCARE_DIR:-$SCRIPTS/..}"
- KPATCH_PATH="${KPATCH_PATH:-$LIBCARE_DIR/src}"
- export LIBCARE_DIR KPATCH_PATH
+ KPATCH_PATH="$(dirname "$( which libcare-cc )" )"
+ export KPATCH_PATH
export OLDPATH=$PATH
export KPATCH_PASSTHROUGH_ASM=1
CPUS=`cat /proc/cpuinfo | grep ^processor | wc -l`
@@ -70,12 +66,13 @@ prepare() {
# Obtain information about the project
source $PDIR/info
- mkdir -p /kcdata
+ ROOT_ORIGINAL=$PDIR/root.original
+ ROOT_PATCHED=$PDIR/root.patched
}
clean_dirs() {
echo " cleaning up"
- rm -rf $KP_PROJECT_BUILD_ROOT /root/root.original /root/root.patched
+ rm -rf $KP_PROJECT_BUILD_ROOT $ROOT_ORIGINAL $ROOT_PATCHED
}
kp_prepare_env_hook() {
@@ -86,17 +83,15 @@ kp_prepare_env_hook() {
kp_pack_prebuilt() {
echo " packing prebuilt $KP_PROJECT into $KP_PROJECT_PREBUILT"
pushd $KP_PROJECT_BUILD_ROOT
- tar -zcf /kcdata/$KP_PROJECT_PREBUILT \
+ tar -zcf $PDIR/$KP_PROJECT_PREBUILT \
$KP_PROJECT_BUILD_ROOT \
- /root/root.original
+ $ROOT_ORIGINAL
popd
}
kp_unpack_prebuilt() {
echo " unpacking prebuilt $KP_PROJECT into $KP_PROJECT_PREBUILT"
- tar -xf /kcdata/$KP_PROJECT_PREBUILT -C /
-
- yum-builddep -d 1 -y $KP_PROJECT_BUILD_ROOT/SPECS/$KP_PROJECT_SPEC
+ tar -xf $PDIR/$KP_PROJECT_PREBUILT -C /
}
kp_prepare_source_raw() {
@@ -108,38 +103,32 @@ kp_prepare_source_raw() {
}
kp_download_source_rpm() {
- mkdir -p /kcdata
if test -n "$KP_PROJECT_SOURCE_URL"; then
- curl $KP_PROJECT_SOURCE_URL -o /kcdata/$KP_PROJECT_SOURCE
+ curl $KP_PROJECT_SOURCE_URL -o $KP_PROJECT_ORIG_RPMS/$KP_PROJECT_SOURCE
else
- yumdownloader --source --destdir /kcdata ${KP_PROJECT_SOURCE%.src.rpm}
+ yumdownloader --source --destdir $KP_PROJECT_ORIG_RPMS ${KP_PROJECT_SOURCE%.src.rpm}
fi
}
kp_prepare_source_rpm() {
- rm -rf $HOME/deps
+ rm -rf $PDIR/deps
eval yum-builddep -d 1 -y $KP_RPM_REPOS \
- --downloadonly --downloaddir=$HOME/deps \
- /kcdata/$KP_PROJECT_SOURCE
+ --downloadonly --downloaddir=$PDIR/deps \
+ $KP_PROJECT_ORIG_RPMS/$KP_PROJECT_SOURCE
mkdir -p $KP_PROJECT_BUILD_ROOT
rpm -qa > $KP_PROJECT_BUILD_ROOT/all-packages.txt
- ls $HOME/deps > $KP_PROJECT_BUILD_ROOT/dependencies.txt
- eval yum-builddep -d 1 -y $KP_RPM_REPOS \
- /kcdata/$KP_PROJECT_SOURCE
+ ls $PDIR/deps > $KP_PROJECT_BUILD_ROOT/dependencies.txt
+ eval yum-builddep -d 1 -y $KP_RPM_REPOS \
+ $KP_PROJECT_ORIG_RPMS/$KP_PROJECT_SOURCE
sed -i 's/.rpm$//g' $KP_PROJECT_BUILD_ROOT/dependencies.txt
- rpm -ivh /kcdata/$KP_PROJECT_SOURCE \
+ rpm -ivh $KP_PROJECT_ORIG_RPMS/$KP_PROJECT_SOURCE \
--define "_topdir $KP_PROJECT_BUILD_ROOT"
}
-kp_prepare_source_deb() {
- echo "deb support is not implemented yet"
- exit 1
-}
-
kp_prepare_source() {
- if ! test -f /kcdata/$KP_PROJECT_SOURCE; then
+ if ! test -f $KP_PROJECT_ORIG_RPMS/$KP_PROJECT_SOURCE; then
echo " downloading source for $KP_PROJECT"
kp_download_source_$KP_PROJECT_FORMAT
fi
@@ -147,12 +136,60 @@ kp_prepare_source() {
kp_prepare_source_$KP_PROJECT_FORMAT
}
+patch_list_apply() {
+ SRC_DIR=$(cd "$(dirname "$1")" && pwd)/$(basename "$1")
+ PATCH_DIR=$(cd "$(dirname "$KP_PROJECT_PLIST_FILE")" && pwd)
+ PLIST=$PATCH_DIR/$(basename "$KP_PROJECT_PLIST_FILE")
+ PATCH_ID=$(echo $(basename "$KP_PROJECT_PLIST_FILE") | awk -F. '{print $1}')
+ if test -z "$PATCH_ID"; then
+ echo "Failed to get patch-id. Please check plist filename: $KP_PROJECT_PLIST_FILE"
+ exit 1
+ fi
+ TEMP_PLIST=/tmp/build.kpatch/tmpplist
+
+ if [ ! -f $PLIST ]; then
+ echo "File $PLIST not found"
+ exit 1;
+ fi
+
+ echo "patching $PWD with patches from $PLIST"
+
+ pushd $SRC_DIR # go to the directory with sources to be patched
+
+ #in case we don't have a newline in plist
+ cat $PLIST > $TEMP_PLIST
+ echo -e "\n" >> $TEMP_PLIST
+
+ # iterate through patches in PLIST
+ while read NAME
+ do
+ COMMENT=`echo $NAME | cut -c1`
+ if [ "$COMMENT" == "#" ]; then
+ continue;
+ fi
+
+ if [ -z "${NAME}" ]; then
+ continue;
+ fi
+
+ echo "Applying patch $NAME"
+ patch -p1 -u --fuzz=0 --batch < $PATCH_DIR/$NAME
+ if [ $? != 0 ]; then
+ echo "Failed applying patch $NAME"; popd; rm $TEMP_PLIST; exit 1
+ else
+ echo "Successfully applied patch $NAME"
+ fi
+ done < $TEMP_PLIST
+ rm $TEMP_PLIST
+
+ popd
+}
+
kp_patch_source() {
echo " patching project"
- PATCH_DIR=$LIBCARE_DIR/patches
#patch_list_apply requires this dir
mkdir -p /tmp/build.kpatch
- $SCRIPTS/patch_list_apply $KP_PROJECT_DIR $PDIR/plist $PATCH_DIR
+ patch_list_apply $KP_PROJECT_DIR
}
kp_prebuild_rpm() {
@@ -170,25 +207,17 @@ kp_prebuild_rpm() {
}
_kp_install_orig_rpm() {
- for rpmfile in $KP_ORIG_RPMS; do
- pkgname="$(basename $rpmfile)"
- pkgname="${pkgname%%.rpm}"
- eval yumdownloader --enablerepo=base-debuginfo $KP_RPM_REPOS \
- --destdir=$HOME/rpms.orig $pkgname
- done
-
- rpm --force -i $HOME/rpms.orig/*.rpm \
- --root=$HOME/root.original \
+ rpm --force -i $1 \
+ --root=$ROOT_ORIGINAL \
--nodeps --noscripts
}
kp_install_orig_rpm() {
- _kp_install_orig_rpm
+ for orig_rpm in $(ls $KP_PROJECT_ORIG_RPMS | grep -v $KP_PROJECT_SOURCE); do
+ _kp_install_orig_rpm $KP_PROJECT_ORIG_RPMS/$orig_rpm
+ done
}
-kp_prebuild_hook() {
- :
-}
kp_prebuild() {
echo " prebuilding $KP_PROJECT"
@@ -200,25 +229,25 @@ de_offset_syms() {
local binary=$1
readelf -WSs $binary > $binary.symlist 2>/dev/null
- $SCRIPTS/de-offset-syms.awk $binary.symlist > $binary.symlist.tmp
+ de-offset-syms.awk $binary.symlist > $binary.symlist.tmp
sort $binary.symlist.tmp > $binary.symlist
rm -f $binary.symlist.tmp
}
kp_sanity_check() {
- pushd $HOME/root.patched
+ pushd $ROOT_PATCHED
local targets="$(find . -perm /0111 -type f)"
popd
local failed=""
for target in $targets; do
- local original="$HOME/root.original/usr/lib/debug/$target.debug"
- local patched="$HOME/root.patched/$target"
+ local original=`ls $ROOT_ORIGINAL/usr/lib/debug/${target}*.debug`
+ local patched="$ROOT_PATCHED/$target"
local alloweddiff="$PDIR/$(basename "$target").symlist.diff"
de_offset_syms $original
if test ! -s $original.symlist; then
- original="$HOME/root.original/$target"
+ original="$ROOT_ORIGINAL/$target"
de_offset_syms $original
fi
@@ -241,7 +270,11 @@ kp_sanity_check() {
done
if test -n "$failed"; then
- die "Failed sanity check for $failed"
+ if test "$KP_SANITY_CHECK_STRICTLY" == "yes"; then
+ die "Failed sanity check for $failed"
+ else
+ echo "[Warning] Failed sanity check for $failed"
+ fi
fi
}
@@ -308,7 +341,7 @@ kp_check_missing_files() {
}
kp_install_generic() {
- local root_patched="$HOME/root.patched"
+ local root_patched="$ROOT_PATCHED"
kp_install_files $KP_PROJECT_BUILD_DIR \
$root_patched \
@@ -318,13 +351,9 @@ kp_install_generic() {
}
kp_install_rpm() {
- kp_install_orig_rpm
kp_install_generic
}
-kp_build_hook() {
- :
-}
kp_build() {
echo " building $KP_PROJECT"
@@ -340,19 +369,22 @@ kp_build() {
kp_gen_kpatch() {
echo " generating kpatches"
- pushd $HOME/root.patched
+ pushd $ROOT_PATCHED
targets=$(find . -perm /0111 -type f)
popd
- rm -rf $HOME/${KP_PROJECT_PATCH%.*}
- mkdir $HOME/${KP_PROJECT_PATCH%.*}
+ rm -rf $PDIR/${KP_PROJECT_PATCH%.*}
+ mkdir $PDIR/${KP_PROJECT_PATCH%.*}
local no_patches=1
for t in $targets; do
- local debug="$HOME/root.original/usr/lib/debug/$t.debug"
- local patched="$HOME/root.patched/$t"
+ local debug=`ls $ROOT_ORIGINAL/usr/lib/debug/${t}*.debug`
+ local patched="$ROOT_PATCHED/$t"
local buildid=$(eu-readelf -n $debug | sed -n '/Build ID:/ { s/.* //; p }')
+ if test -n "$KP_PROJECT_BUILD_ID"; then
+ buildid=$KP_PROJECT_BUILD_ID
+ fi
if test -z "$buildid"; then
continue
fi
@@ -363,7 +395,7 @@ kp_gen_kpatch() {
chmod u+w $debug $patched
- eu-unstrip "$HOME/root.original/$t" "$debug"
+ eu-unstrip "$ROOT_ORIGINAL/$t" "$debug"
$KPATCH_PATH/kpatch_strip --strip $patched $patched.kpstripped
cp $patched.kpstripped $patched.relfixup
@@ -372,8 +404,8 @@ kp_gen_kpatch() {
/usr/bin/strip --strip-unneeded $patched.stripped
cp $patched.stripped $patched.undolink
$KPATCH_PATH/kpatch_strip --undo-link $debug $patched.undolink
- $KPATCH_PATH/kpatch_make -b "$buildid" $patched.undolink -o $patched.kpatch
- cp $patched.kpatch $HOME/${KP_PROJECT_PATCH%.*}/$buildid.kpatch
+ $KPATCH_PATH/kpatch_make -b "$buildid" -i "$PATCH_ID" $patched.undolink -o $patched.kpatch
+ cp $patched.kpatch $PDIR/${KP_PROJECT_PATCH%.*}/$buildid.kpatch
no_patches=0
done
@@ -384,9 +416,7 @@ kp_gen_kpatch() {
kp_pack_patch() {
echo " packing patch for $KP_PROJECT into $KP_PROJECT_PATCH"
- pushd $KP_PROJECT_BUILD_DIR
- tar -zcf /kcdata/$KP_PROJECT_PATCH $HOME/${KP_PROJECT_PATCH%.*}
- popd
+ tar -zcf $PDIR/$KP_PROJECT_PATCH $PDIR/${KP_PROJECT_PATCH%.*}
}
kp_unpack_patch() {
@@ -411,11 +441,6 @@ kp_unpack_patch() {
rm -fr $tmpdir
}
-
-kp_mark_tests_fail() {
- touch /kcdata/Tests-FAIL
-}
-
overwrite_utils() {
TMPBIN=$(mktemp -d --tmpdir)
--
2.24.1.windows.2

24
0014-kpatch_process-fix-possible-double-free.patch Normal file
View File

@ -0,0 +1,24 @@
From fdf172f68f2270306effda39211a4be5ca7e437e Mon Sep 17 00:00:00 2001
From: wangcichen <wangcichen_yewu@cmss.chinamobile.com>
Date: Tue, 17 May 2022 16:40:26 +0800
Subject: [PATCH 1/5] kpatch_process: fix possible double free.
---
src/kpatch_process.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/src/kpatch_process.c b/src/kpatch_process.c
index 9d6daa4..a31f70c 100644
--- a/src/kpatch_process.c
+++ b/src/kpatch_process.c
@@ -682,7 +682,6 @@ process_list_threads(kpatch_process_t *proc,
t = realloc(pids, *alloc * sizeof(*pids));
if (t == NULL) {
kplogerror("Failed to (re)allocate memory for pids\n");
- closedir(dir);
goto dealloc;
}
--
2.27.0

39
0015-ptrace-fix-NULL-pointer-access-problem.patch Normal file
View File

@ -0,0 +1,39 @@
From a45b9424cb7258c00211115191f74fbaf8f74285 Mon Sep 17 00:00:00 2001
From: wangcichen <wangcichen_yewu@cmss.chinamobile.com>
Date: Mon, 23 May 2022 10:18:57 +0800
Subject: [PATCH 2/5] ptrace: fix NULL pointer access problem
---
src/arch/aarch64/arch_ptrace.c | 2 --
src/arch/x86/arch_ptrace.c | 2 --
2 files changed, 4 deletions(-)
diff --git a/src/arch/aarch64/arch_ptrace.c b/src/arch/aarch64/arch_ptrace.c
index 774dc21..2227e95 100644
--- a/src/arch/aarch64/arch_ptrace.c
+++ b/src/arch/aarch64/arch_ptrace.c
@@ -465,8 +465,6 @@ kpatch_arch_ptrace_waitpid(kpatch_process_t *proc,
/* TODO: fix the latter by SINGLESTEPping such a thread with
* the original instruction in place */
- kperr("the thread ran out: %d, pc= %llx, expected = %lx\n", pid,
- regs.pc, pctx->execute_until);
errno = ESRCH;
return -1;
}
diff --git a/src/arch/x86/arch_ptrace.c b/src/arch/x86/arch_ptrace.c
index 9069484..9dede71 100644
--- a/src/arch/x86/arch_ptrace.c
+++ b/src/arch/x86/arch_ptrace.c
@@ -492,8 +492,6 @@ int kpatch_arch_ptrace_waitpid(kpatch_process_t *proc,
/* TODO: fix the latter by SINGLESTEPping such a thread with
* the original instruction in place */
- kperr("the thread ran out: %d, rip = %llx, expected = %lx\n", pid,
- regs.rip, pctx->execute_until);
errno = ESRCH;
return -1;
}
--
2.27.0

156
0016-fix-patched-process-crashing-when-acccess-the-global.patch Normal file
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@ -0,0 +1,156 @@
From add4a57f47eb89acf4a471253654cc806aedaaf8 Mon Sep 17 00:00:00 2001
From: ctyunsystem <ctyuncommiter05@chinatelecom.cn>
Date: Wed, 11 May 2022 10:20:26 +0800
Subject: [PATCH 3/5] fix patched process crashing when acccess the global var
which newly added
---
src/kpatch_gensrc.c | 20 +++++++++++++++++---
src/kpatch_patch.c | 6 +++---
tests/new_var/Makefile | 2 ++
tests/new_var/desc | 1 +
tests/new_var/new_var.c | 23 +++++++++++++++++++++++
tests/new_var/new_var.diff | 15 +++++++++++++++
6 files changed, 61 insertions(+), 6 deletions(-)
create mode 100644 tests/new_var/Makefile
create mode 100644 tests/new_var/desc
create mode 100644 tests/new_var/new_var.c
create mode 100644 tests/new_var/new_var.diff
diff --git a/src/kpatch_gensrc.c b/src/kpatch_gensrc.c
index bf1832a..67254d7 100644
--- a/src/kpatch_gensrc.c
+++ b/src/kpatch_gensrc.c
@@ -432,6 +432,20 @@ out:
/* ------------------------------------------ helpers -------------------------------------------- */
+static inline int page_shift(int n) {
+ int res = -1;
+
+ while(n) {
+ res++;
+ n >>= 1;
+ }
+
+ return res;
+}
+
+#define PAGE_SIZE getpagesize()
+#define PAGE_SHIFT page_shift(PAGE_SIZE)
+
static void change_section(struct kp_file *fout, struct section_desc *sect, int flags)
{
static int init_data_section = 0;
@@ -448,15 +462,15 @@ static void change_section(struct kp_file *fout, struct section_desc *sect, int
s = ".kpatch.text,\"ax\",@progbits";
else {
s = ".kpatch.data,\"aw\",@progbits";
- if (!init_data_section && (flags & FLAG_PUSH_SECTION)) {
+ if (!init_data_section) {
init_data_section = 1;
- align = ".p2align\t12";
+ align = ".p2align";
}
}
fprintf(fout->f, "\t.%ssection %s\n", (flags & FLAG_PUSH_SECTION) ? "push" : "", s);
if (align)
- fprintf(fout->f, "\t%s\n", align);
+ fprintf(fout->f, "\t%s\t%d\n", align, PAGE_SHIFT);
}
void get_comm_args(struct kp_file *f, int l, kpstr_t *xname, int *sz, int *align)
diff --git a/src/kpatch_patch.c b/src/kpatch_patch.c
index d74299d..3b53a5a 100644
--- a/src/kpatch_patch.c
+++ b/src/kpatch_patch.c
@@ -372,9 +372,9 @@ object_apply_patch(struct object_file *o)
kp->jmp_offset = sz;
kpdebug("Jump table %d bytes for %d syms at offset 0x%x\n",
o->jmp_table->size, undef, kp->jmp_offset);
- sz = ROUND_UP(sz + o->jmp_table->size, 4096);
+ sz = ROUND_UP(sz + o->jmp_table->size, PAGE_SIZE);
}
- sz = ROUND_UP(sz, 4096);
+ sz = ROUND_UP(sz, PAGE_SIZE);
/* kpatch elf */
kp->elf_offset = sz;
@@ -386,7 +386,7 @@ object_apply_patch(struct object_file *o)
kp->user_undo = sz;
sz = ROUND_UP(sz + HUNK_SIZE * o->ninfo, 16);
- sz = ROUND_UP(sz, 4096);
+ sz = ROUND_UP(sz, PAGE_SIZE);
kp->kpatch_total_mem_sz = sz;
/*
diff --git a/tests/new_var/Makefile b/tests/new_var/Makefile
new file mode 100644
index 0000000..6dd4b69
--- /dev/null
+++ b/tests/new_var/Makefile
@@ -0,0 +1,2 @@
+
+include ../makefile.inc
diff --git a/tests/new_var/desc b/tests/new_var/desc
new file mode 100644
index 0000000..4f8cd31
--- /dev/null
+++ b/tests/new_var/desc
@@ -0,0 +1 @@
+patch adds a new var
diff --git a/tests/new_var/new_var.c b/tests/new_var/new_var.c
new file mode 100644
index 0000000..3ed116a
--- /dev/null
+++ b/tests/new_var/new_var.c
@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <unistd.h>
+
+void print_greetings_patched(int var)
+{
+ printf("Hello. This is a PATCHED version\n");
+ printf("Hello. <newly_added_var=0x%08x>\n", var);
+}
+
+void print_greetings(void)
+{
+ printf("Hello. This is an UNPATCHED version\n");
+}
+
+int main()
+{
+ while (1) {
+ print_greetings();
+ sleep(1);
+ }
+
+ return 0;
+}
diff --git a/tests/new_var/new_var.diff b/tests/new_var/new_var.diff
new file mode 100644
index 0000000..c617535
--- /dev/null
+++ b/tests/new_var/new_var.diff
@@ -0,0 +1,15 @@
+--- ./new_var.c 2022-02-10 19:40:17.948981115 +0800
++++ ./new_var.c 2022-02-10 20:02:38.774536002 +0800
+@@ -7,9 +7,11 @@
+ printf("Hello. <newly_added_var=0x%08x>\n", var);
+ }
+
++int newly_added_var = 0x20220210;
+ void print_greetings(void)
+ {
+- printf("Hello. This is an UNPATCHED version\n");
++ newly_added_var = 0x2022 << 16 | 0x2202;
++ print_greetings_patched(newly_added_var);
+ }
+
+ int main()
--
2.27.0

100
0017-fix-probably-restore-cc-symbol-link-fail-when-kill-p.patch Normal file
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@ -0,0 +1,100 @@
From c4f9d59c62454d255af4a5c3933eebf6942dbd99 Mon Sep 17 00:00:00 2001
From: ctyunsystem <ctyuncommiter05@chinatelecom.cn>
Date: Wed, 11 May 2022 10:32:45 +0800
Subject: [PATCH 4/5] fix probably restore cc symbol link fail when kill patch
building uncourteous
---
src/libcare-patch-make | 45 ++++--------------------------------------
1 file changed, 4 insertions(+), 41 deletions(-)
diff --git a/src/libcare-patch-make b/src/libcare-patch-make
index 03aa1d6..41e5926 100755
--- a/src/libcare-patch-make
+++ b/src/libcare-patch-make
@@ -83,32 +83,6 @@ restore_origs() {
trap "restore_origs" 0
-replace_qemu_ld_flags() {
- local qemu_ld_flags_old=$1
- ret=$(echo $qemu_ld_flags_old | grep "\-Wl,-q")
- if [[ "$ret" == "" ]]; then
- local qemu_ld_flags="${qemu_ld_flags_old} -Wl,-q"
- echo "replace QEMU_LDFLAGS to '${qemu_ld_flags}'"
- sed -i "/^QEMU_LDFLAGS=/c\\${qemu_ld_flags}" config-host.mak
- fi
-}
-
-recover_qemu_ld_flags() {
- local qemu_ld_flags=$1
- echo "recover QEMU_LDFLAGS to '${qemu_ld_flags}'"
- sed -i "/^QEMU_LDFLAGS=/c\\${qemu_ld_flags}" config-host.mak
-}
-
-replace_cc_symbolink() {
- unlink $SYMBOLINK_CC
- ln -s $LIBCARE_CC $SYMBOLINK_CC
-}
-
-recover_cc_symbolink() {
- unlink $SYMBOLINK_CC
- ln -s $REAL_CC $SYMBOLINK_CC
-}
-
build_objects() {
restore_origs
@@ -124,7 +98,8 @@ build_objects() {
export KPCC_DBGFILTER_ARGS=""
echo "${green}BUILDING ORIGINAL CODE${reset}"
- make $LPMAKEFILE $JOBS_MAKE >$MAKE_OUTPUT 2>&1
+ local lp_make_env_original="CC=${CC}"
+ make $LPMAKEFILE $JOBS_MAKE ${lp_make_env_original} >$MAKE_OUTPUT 2>&1
echo "${green}INSTALLING ORIGINAL OBJECTS INTO $LPMAKE_ORIGINAL_DIR${reset}"
make $LPMAKEFILE $JOBS_MAKE install \
@@ -149,20 +124,14 @@ build_objects() {
export KPATCH_STAGE=patched
export KPCC_APPEND_ARGS="-Wl,-q"
- qemu_ld_flags_bak=$(grep "^QEMU_LDFLAGS=" config-host.mak)
- #add '-Wl,-q' to LD_FLAGS
- replace_qemu_ld_flags "$qemu_ld_flags_bak"
-
echo "${green}BUILDING PATCHED CODE${reset}"
- make $LPMAKEFILE $JOBS_MAKE >$MAKE_OUTPUT 2>&1
+ local lp_make_env_patched="CC=${CC}"
+ make $LPMAKEFILE $JOBS_MAKE ${lp_make_env_patched} >$MAKE_OUTPUT 2>&1
echo "${green}INSTALLING PATCHED OBJECTS INTO $LPMAKE_PATCHED_DIR${reset}"
make $LPMAKEFILE $JOBS_MAKE install \
"$destdir=$LPMAKE_PATCHED_DIR" \
>$MAKE_OUTPUT 2>&1
-
- # recover LD_FLAGS
- recover_qemu_ld_flags "$qemu_ld_flags_bak"
}
build_kpatches() {
@@ -274,16 +243,10 @@ main() {
prepare_env
- # replace cc
- replace_cc_symbolink
-
if test -z "$only_update"; then
build_objects "$@"
fi
build_kpatches
-
- # recover cc
- recover_cc_symbolink
}
main "$@"
--
2.27.0

39
0018-optimize-Remove-unnecessary-comparison-code.patch Normal file
View File

@ -0,0 +1,39 @@
From 5667441f87ef702ed537aba7c677eee1b36f1ead Mon Sep 17 00:00:00 2001
From: wangcichen <wangcichen_yewu@cmss.chinamobile.com>
Date: Fri, 27 May 2022 17:08:28 +0800
Subject: [PATCH 5/5] optimize: Remove unnecessary comparison code
---
src/arch/aarch64/arch_elf.c | 2 +-
src/arch/x86/arch_elf.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/arch/aarch64/arch_elf.c b/src/arch/aarch64/arch_elf.c
index 9ce586d..10399ee 100644
--- a/src/arch/aarch64/arch_elf.c
+++ b/src/arch/aarch64/arch_elf.c
@@ -202,7 +202,7 @@ int kpatch_arch_apply_relocate_add(struct object_file *o, GElf_Shdr *relsec)
unsigned long val;
void *loc, *loc2;
- if (r->r_offset < 0 || r->r_offset >= tshdr->sh_size) {
+ if (r->r_offset >= tshdr->sh_size) {
kperr("Relocation offset for section '%s'"
" is at 0x%lx beyond the section size 0x%lx\n",
scnname, r->r_offset, tshdr->sh_size);
diff --git a/src/arch/x86/arch_elf.c b/src/arch/x86/arch_elf.c
index 265fd37..f79a996 100644
--- a/src/arch/x86/arch_elf.c
+++ b/src/arch/x86/arch_elf.c
@@ -56,7 +56,7 @@ int kpatch_arch_apply_relocate_add(struct object_file *o, GElf_Shdr *relsec)
unsigned long val;
void *loc, *loc2;
- if (r->r_offset < 0 || r->r_offset >= tshdr->sh_size) {
+ if (r->r_offset >= tshdr->sh_size) {
kperr("Relocation offset for section '%s'"
" is at 0x%lx beyond the section size 0x%lx\n",
scnname, r->r_offset, tshdr->sh_size);
--
2.27.0

101
0019-Revert-fix-probably-restore-cc-symbol-link-fail-when.patch Normal file
View File

@ -0,0 +1,101 @@
From d86044aa709617186fa4eeb2dff9540395f77c8e Mon Sep 17 00:00:00 2001
From: ctyunsystem <ctyuncommiter05@chinatelecom.cn>
Date: Tue, 5 Jul 2022 10:13:15 +0800
Subject: [PATCH 1/2] Revert "fix probably restore cc symbol link fail when
kill patch building uncourteous" ==> Revert "libcare-patch-make: fix some
bugs"
---
src/libcare-patch-make | 45 ++++++++++++++++++++++++++++++++++++++----
1 file changed, 41 insertions(+), 4 deletions(-)
diff --git a/src/libcare-patch-make b/src/libcare-patch-make
index 41e5926..03aa1d6 100755
--- a/src/libcare-patch-make
+++ b/src/libcare-patch-make
@@ -83,6 +83,32 @@ restore_origs() {
trap "restore_origs" 0
+replace_qemu_ld_flags() {
+ local qemu_ld_flags_old=$1
+ ret=$(echo $qemu_ld_flags_old | grep "\-Wl,-q")
+ if [[ "$ret" == "" ]]; then
+ local qemu_ld_flags="${qemu_ld_flags_old} -Wl,-q"
+ echo "replace QEMU_LDFLAGS to '${qemu_ld_flags}'"
+ sed -i "/^QEMU_LDFLAGS=/c\\${qemu_ld_flags}" config-host.mak
+ fi
+}
+
+recover_qemu_ld_flags() {
+ local qemu_ld_flags=$1
+ echo "recover QEMU_LDFLAGS to '${qemu_ld_flags}'"
+ sed -i "/^QEMU_LDFLAGS=/c\\${qemu_ld_flags}" config-host.mak
+}
+
+replace_cc_symbolink() {
+ unlink $SYMBOLINK_CC
+ ln -s $LIBCARE_CC $SYMBOLINK_CC
+}
+
+recover_cc_symbolink() {
+ unlink $SYMBOLINK_CC
+ ln -s $REAL_CC $SYMBOLINK_CC
+}
+
build_objects() {
restore_origs
@@ -98,8 +124,7 @@ build_objects() {
export KPCC_DBGFILTER_ARGS=""
echo "${green}BUILDING ORIGINAL CODE${reset}"
- local lp_make_env_original="CC=${CC}"
- make $LPMAKEFILE $JOBS_MAKE ${lp_make_env_original} >$MAKE_OUTPUT 2>&1
+ make $LPMAKEFILE $JOBS_MAKE >$MAKE_OUTPUT 2>&1
echo "${green}INSTALLING ORIGINAL OBJECTS INTO $LPMAKE_ORIGINAL_DIR${reset}"
make $LPMAKEFILE $JOBS_MAKE install \
@@ -124,14 +149,20 @@ build_objects() {
export KPATCH_STAGE=patched
export KPCC_APPEND_ARGS="-Wl,-q"
+ qemu_ld_flags_bak=$(grep "^QEMU_LDFLAGS=" config-host.mak)
+ #add '-Wl,-q' to LD_FLAGS
+ replace_qemu_ld_flags "$qemu_ld_flags_bak"
+
echo "${green}BUILDING PATCHED CODE${reset}"
- local lp_make_env_patched="CC=${CC}"
- make $LPMAKEFILE $JOBS_MAKE ${lp_make_env_patched} >$MAKE_OUTPUT 2>&1
+ make $LPMAKEFILE $JOBS_MAKE >$MAKE_OUTPUT 2>&1
echo "${green}INSTALLING PATCHED OBJECTS INTO $LPMAKE_PATCHED_DIR${reset}"
make $LPMAKEFILE $JOBS_MAKE install \
"$destdir=$LPMAKE_PATCHED_DIR" \
>$MAKE_OUTPUT 2>&1
+
+ # recover LD_FLAGS
+ recover_qemu_ld_flags "$qemu_ld_flags_bak"
}
build_kpatches() {
@@ -243,10 +274,16 @@ main() {
prepare_env
+ # replace cc
+ replace_cc_symbolink
+
if test -z "$only_update"; then
build_objects "$@"
fi
build_kpatches
+
+ # recover cc
+ recover_cc_symbolink
}
main "$@"
--
2.27.0

26
0020-fix-probably-restore-cc-symbol-link-fail-when-kill-p.patch Normal file
View File

@ -0,0 +1,26 @@
From 96362b54e9c2162fe10fd1cfe029bcc8e203b135 Mon Sep 17 00:00:00 2001
From: ctyunsystem <ctyuncommiter05@chinatelecom.cn>
Date: Tue, 5 Jul 2022 10:13:58 +0800
Subject: [PATCH 2/2] fix probably restore cc symbol link fail when kill patch
building uncourteous
---
src/libcare-patch-make | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/libcare-patch-make b/src/libcare-patch-make
index 03aa1d6..3cd2fe9 100755
--- a/src/libcare-patch-make
+++ b/src/libcare-patch-make
@@ -109,6 +109,8 @@ recover_cc_symbolink() {
ln -s $REAL_CC $SYMBOLINK_CC
}
+trap "recover_cc_symbolink" SIGINT SIGTERM SIGQUIT
+
build_objects() {
restore_origs
--
2.27.0

BIN
libcareplus-1.0.0.tar.gz Normal file
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BIN
libcareplus-1.0.2.tar.gz
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42
libcareplus.spec
View File

@ -1,16 +1,37 @@
%define with_selinux 1 %define with_selinux 1
Version: 1.0.2 Version: 1.0.0
Name: libcareplus Name: libcareplus
Summary: LibcarePlus tools Summary: LibcarePlus tools
Release: 1 Release: 12
Group: Applications/System Group: Applications/System
License: GPLv2 License: GPLv2
Url: https://gitee.com/openeuler/libcareplus Url: https://gitee.com/openeuler/libcareplus
Source0: https://gitee.com/openeuler/libcareplus/releases/download/v%{version}/%{name}-%{version}.tar.gz Source0: %{name}-%{version}.tar.gz
Patch0000: 0000-gensrc-skip-vector-instruction-in-str_do_gotpcrel.patch
Patch0001: 0001-gensrc-we-should-add-align-while-FLAGS_PUSH_SECTION-.patch
Patch0002: 0002-fix-cblock-parse-for-LCOLD-LHOT-.cold.NUM-.init_arra.patch
Patch0003: 0003-elf-add-section-adderss-for-STT_NOTYPE-type-of-symbo.patch
Patch0004: 0004-elf-strip-adapt-to-new-gcc-version-10.3.1.patch
Patch0005: 0005-gitignore-ignore-some-tests-and-binary.patch
Patch0006: 0006-libcare-patch-make-adapt-libcare-patch-make-to-meson.patch
Patch0007: 0007-kpatch_elf-compatible-with-older-versions-of-the-so-.patch
Patch0008: 0008-kpatch_parse-fix-failed-to-recognize-.cold.patch
Patch0009: 0009-help-modify-some-help-information.patch
Patch0010: 0010-libcare-patch-make-fix-some-bugs.patch
Patch0011: 0011-selinux-enable-libcare-ctl-to-mprotect-qemu-process.patch
Patch0012: 0012-libcare-dump-change-the-return-value.patch
Patch0013: 0013-modify-pkgbuild-to-make-kpatch-for-RPM-based-packages.patch
Patch0014: 0014-kpatch_process-fix-possible-double-free.patch
Patch0015: 0015-ptrace-fix-NULL-pointer-access-problem.patch
Patch0016: 0016-fix-patched-process-crashing-when-acccess-the-global.patch
Patch0017: 0017-fix-probably-restore-cc-symbol-link-fail-when-kill-p.patch
Patch0018: 0018-optimize-Remove-unnecessary-comparison-code.patch
Patch0019: 0019-Revert-fix-probably-restore-cc-symbol-link-fail-when.patch
Patch0020: 0020-fix-probably-restore-cc-symbol-link-fail-when-kill-p.patch
BuildRequires: elfutils-libelf-devel libunwind-devel gcc systemd BuildRequires: elfutils-libelf-devel libunwind-devel gcc systemd
Requires: binutils elfutils elfutils-libelf-devel libunwind-devel
%if 0%{with selinux} %if 0%{with selinux}
BuildRequires: checkpolicy BuildRequires: checkpolicy
@ -146,19 +167,6 @@ exit 0
%endif %endif
%changelog %changelog
* Wed May 08 2024 laokz <zhangkai@iscas.ac.cn> 1.0.2-1
- libcareplus update to version 1.0.2
* Wed Jan 11 2023 lvgenggeng <lvgenggeng@uniontech.com> 1.0.1-2
- fix runtime dependencies
* Thu Nov 24 2022 yezengruan <yezengruan@huawei.com> 1.0.1-1
- update libcareplus download url and package
- libcareplus update to version 1.0.1
* Fri Sep 16 2022 yezengruan <yezengruan@huawei.com> 1.0.0-13
- do not print awk warning in libcare-patch-make
* Wed Jun 15 2022 yezengruan <yezengruan@huawei.com> 1.0.0-12 * Wed Jun 15 2022 yezengruan <yezengruan@huawei.com> 1.0.0-12
- kpatch_process: fix possible double free. - kpatch_process: fix possible double free.
- ptrace: fix NULL pointer access problem - ptrace: fix NULL pointer access problem