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libs/libc/fork: add lib_fork implementation

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1. add lib_fork api in libs/libc, we need a fork() api to implement the
fork relative method, such as pthread_atfork
2. rename the assembly fork entry function name to up_fork(), and rename
the up_fork() to arch specific name, such as
sim_fork()/arm_fork()/mips_fork() etc.

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
This commit is contained in:
guoshichao 2023-07-16 11:34:17 +08:00 • committed by Alin Jerpelea
parent 46b25b3849
commit 3524f4b9ce
23 changed files with 265 additions and 156 deletions
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2
syscall/syscall.csv
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@ -29,7 +29,6 @@
"fchmod","sys/stat.h","","int","int","mode_t"
"fchown","unistd.h","","int","int","uid_t","gid_t"
"fcntl","fcntl.h","","int","int","int","...","int"
"fork","unistd.h","defined(CONFIG_ARCH_HAVE_FORK)","pid_t"
"fs_fdopen","nuttx/fs/fs.h","defined(CONFIG_FILE_STREAM)","int","int","int","FAR struct tcb_s *","FAR struct file_struct **"
"fstat","sys/stat.h","","int","int","FAR struct stat *"
"fstatfs","sys/statfs.h","","int","int","FAR struct statfs *"
@ -204,6 +203,7 @@
"umount2","sys/mount.h","!defined(CONFIG_DISABLE_MOUNTPOINT)","int","FAR const char *","unsigned int"
"unlink","unistd.h","!defined(CONFIG_DISABLE_MOUNTPOINT)","int","FAR const char *"
"unsetenv","stdlib.h","!defined(CONFIG_DISABLE_ENVIRON)","int","FAR const char *"
"up_fork","nuttx/arch.h","defined(CONFIG_ARCH_HAVE_FORK)","pid_t"
"utimens","sys/stat.h","","int","FAR const char *","const struct timespec [2]|FAR const struct timespec *"
"wait","sys/wait.h","defined(CONFIG_SCHED_WAITPID) && defined(CONFIG_SCHED_HAVE_PARENT)","pid_t","FAR int *"
"waitid","sys/wait.h","defined(CONFIG_SCHED_WAITPID) && defined(CONFIG_SCHED_HAVE_PARENT)","int","idtype_t","id_t"," FAR siginfo_t *","int"

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