chao an
0f8ecc0150
libs/libc: export exit() if configured in flat mode
...
Signed-off-by: chao an <anchao@xiaomi.com>
2023-02-23 13:50:03 +08:00
Ville Juven
df1d7dd480
libc/exit: Purge calls to userspace API exit() from kernel
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Remove calls to the userspace API exit() from the kernel. The problem
with doing such calls is that the exit functions are called with kernel
mode privileges which is a big security no-no.
2023-02-17 23:07:17 +08:00
Huang Qi
a66f0a6369
stdlib: Guard fflush in exit with CONFIG_FILE_STREAM
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If CONFIG_FILE_STREAM disabled, fflush is a undefined function.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2023-02-12 00:09:29 +08:00
Xiang Xiao
bcd1ebf260
libc: Implement quick_exit and at_quick_exit
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Defined by c11:
https://en.cppreference.com/w/c/program/quick_exit
https://en.cppreference.com/w/c/program/at_quick_exit
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-01-25 14:31:37 +02:00
Ville Juven
3be81e649f
libc/stdio: Flush streams in userspace when process exits
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This fixes a long standing issue, where the kernel does flushing of file
streams, although it should not handle such streams at all.
2022-12-22 20:16:11 +08:00
Ville Juven
622677d4a1
libc: Implement exit, atexit, on_exit and cxa_exit on the user side
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For CONFIG_BUILD_KERNEL using the sched/task/task_exithook implementation
will just not work. It calls user code with kernel privileges which is
a bit of a security issue.
2022-05-25 15:28:43 +08:00
