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5501bf88
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Third Party Musl
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5501bf88
编写于
3月 15, 2022
作者:
O
openharmony_ci
提交者:
Gitee
3月 15, 2022
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差异文件
!253 解决动态库卸载时不会触发C++全局和静态对象的析构函数
Merge pull request !253 from lipengzheng_gitee/third_party_musl
上级
4d7af9b6
86404a79
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
93 addition
and
0 deletion
+93
-0
musl_src.gni
musl_src.gni
+1
-0
porting/linux/user/src/exit/atexit.c
porting/linux/user/src/exit/atexit.c
+92
-0
未找到文件。
musl_src.gni
浏览文件 @
5501bf88
...
...
@@ -1850,6 +1850,7 @@ musl_src_porting_file = [
"src/thread/arm/syscall_cp.s",
"src/ldso/dlclose.c",
"ldso/dynlink.c",
"src/exit/atexit.c",
"crt/arm/crti.s",
"crt/aarch64/crti.s",
]
...
...
porting/linux/user/src/exit/atexit.c
0 → 100644
浏览文件 @
5501bf88
#include <stdlib.h>
#include <stdint.h>
#include "libc.h"
#include "lock.h"
/* Ensure that at least 32 atexit handlers can be registered without malloc */
#define COUNT 32
static
struct
fl
{
struct
fl
*
next
;
void
(
*
f
[
COUNT
])(
void
*
);
void
*
a
[
COUNT
];
void
*
dso
[
COUNT
];
}
builtin
,
*
head
;
static
int
slot
;
static
volatile
int
lock
[
1
];
void
__funcs_on_exit
()
{
void
(
*
func
)(
void
*
),
*
arg
;
LOCK
(
lock
);
for
(;
head
;
head
=
head
->
next
,
slot
=
COUNT
)
while
(
slot
-->
0
)
{
if
(
head
->
dso
[
slot
]
!=
NULL
)
{
func
=
head
->
f
[
slot
];
arg
=
head
->
a
[
slot
];
UNLOCK
(
lock
);
func
(
arg
);
LOCK
(
lock
);
}
}
UNLOCK
(
lock
);
}
void
__cxa_finalize
(
void
*
dso
)
{
void
(
*
func
)(
void
*
),
*
arg
;
LOCK
(
lock
);
for
(;
head
;
head
=
head
->
next
,
slot
=
COUNT
)
while
(
slot
-->
0
)
{
if
(
dso
==
head
->
dso
[
slot
])
{
func
=
head
->
f
[
slot
];
arg
=
head
->
a
[
slot
];
UNLOCK
(
lock
);
func
(
arg
);
LOCK
(
lock
);
head
->
dso
[
slot
]
=
NULL
;
}
}
UNLOCK
(
lock
);
}
int
__cxa_atexit
(
void
(
*
func
)(
void
*
),
void
*
arg
,
void
*
dso
)
{
LOCK
(
lock
);
/* Defer initialization of head so it can be in BSS */
if
(
!
head
)
head
=
&
builtin
;
/* If the current function list is full, add a new one */
if
(
slot
==
COUNT
)
{
struct
fl
*
new_fl
=
calloc
(
sizeof
(
struct
fl
),
1
);
if
(
!
new_fl
)
{
UNLOCK
(
lock
);
return
-
1
;
}
new_fl
->
next
=
head
;
head
=
new_fl
;
slot
=
0
;
}
/* Append function to the list. */
head
->
f
[
slot
]
=
func
;
head
->
a
[
slot
]
=
arg
;
head
->
dso
[
slot
]
=
dso
;
slot
++
;
UNLOCK
(
lock
);
return
0
;
}
static
void
call
(
void
*
p
)
{
((
void
(
*
)(
void
))(
uintptr_t
)
p
)();
}
int
atexit
(
void
(
*
func
)(
void
))
{
return
__cxa_atexit
(
call
,
(
void
*
)(
uintptr_t
)
func
,
0
);
}
\ No newline at end of file
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