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fs/hostfs: add link, symlink, readlink and lstat support

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Implemented link(), symlink(), readlink() and lstat() in hostfs.

Signed-off-by: zhengyu16 <zhengyu16@xiaomi.com>
This commit is contained in:
zhengyu16
2026-08-28 18:35:37 +08:00
committed by GUIDINGLI
parent c7a78c01c1
commit 86193c95ca
9 changed files with 568 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/src/common/arm_hostfs.c
+28
View File
@@ -370,3 +370,31 @@ int host_chstat(const char *path, const struct stat *buf, int flags)
{
return -ENOSYS;
}
#ifdef CONFIG_FS_LINKS
int host_link(const char *path1, const char *path2)
{
/* ARM semihosting doesn't support hard links */
return -ENOSYS;
}
int host_symlink(const char *target, const char *linkpath)
{
/* ARM semihosting doesn't support symbolic links */
return -ENOSYS;
}
ssize_t host_readlink(const char *path, char *buf, size_t bufsize)
{
/* ARM semihosting doesn't support symbolic links */
return -ENOSYS;
}
int host_lstat(const char *path, struct stat *buf)
{
return -ENOSYS;
}
#endif /* CONFIG_FS_LINKS */
arch/arm64/src/common/arm64_hostfs.c
+22
View File
@@ -370,3 +370,25 @@ int host_chstat(const char *path, const struct stat *buf, int flags)
{
return -ENOSYS;
}
#ifdef CONFIG_FS_LINKS
int host_link(const char *path1, const char *path2)
{
return -ENOSYS;
}
int host_symlink(const char *target, const char *linkpath)
{
return -ENOSYS;
}
ssize_t host_readlink(const char *path, char *buf, size_t bufsize)
{
return -ENOSYS;
}
int host_lstat(const char *path, struct stat *buf)
{
return -ENOSYS;
}
#endif /* CONFIG_FS_LINKS */
arch/risc-v/src/common/riscv_hostfs.c
+22
View File
@@ -368,3 +368,25 @@ int host_chstat(const char *path, const struct stat *buf, int flags)
{
return -ENOSYS;
}
#ifdef CONFIG_FS_LINKS
int host_link(const char *path1, const char *path2)
{
return -ENOSYS;
}
int host_symlink(const char *target, const char *linkpath)
{
return -ENOSYS;
}
ssize_t host_readlink(const char *path, char *buf, size_t bufsize)
{
return -ENOSYS;
}
int host_lstat(const char *path, struct stat *buf)
{
return -ENOSYS;
}
#endif /* CONFIG_FS_LINKS */
arch/sim/src/nuttx-names.in
+3
View File
@@ -75,9 +75,11 @@ NXSYMBOLS(getpid)
NXSYMBOLS(getsockopt)
NXSYMBOLS(if_nametoindex)
NXSYMBOLS(ioctl)
NXSYMBOLS(link)
NXSYMBOLS(listen)
NXSYMBOLS(longjmp)
NXSYMBOLS(lseek)
NXSYMBOLS(lstat)
NXSYMBOLS(malloc)
NXSYMBOLS(malloc_size)
NXSYMBOLS(malloc_usable_size)
@@ -154,6 +156,7 @@ NXSYMBOLS(strchr)
NXSYMBOLS(strerror)
NXSYMBOLS(strlen)
NXSYMBOLS(strtol)
NXSYMBOLS(symlink)
NXSYMBOLS(sysconf)
NXSYMBOLS(syslog)
NXSYMBOLS(system)
arch/sim/src/sim/posix/sim_hostfs.c
+71
View File
@@ -820,3 +820,74 @@ int host_chstat(const char *path, const struct nuttx_stat_s *buf, int flags)
return 0;
}
/****************************************************************************
* Name: host_link
****************************************************************************/
#ifdef CONFIG_FS_LINKS
int host_link(const char *path1, const char *path2)
{
int ret = link(path1, path2);
if (ret < 0)
{
ret = -errno;
}
return ret;
}
/****************************************************************************
* Name: host_symlink
****************************************************************************/
int host_symlink(const char *target, const char *linkpath)
{
int ret = symlink(target, linkpath);
if (ret < 0)
{
ret = -errno;
}
return ret;
}
/****************************************************************************
* Name: host_readlink
****************************************************************************/
nuttx_ssize_t host_readlink(const char *path, char *buf,
nuttx_size_t bufsize)
{
ssize_t ret = readlink(path, buf, bufsize);
if (ret < 0)
{
ret = -errno;
}
return ret;
}
/****************************************************************************
* Name: host_lstat
****************************************************************************/
int host_lstat(const char *path, struct nuttx_stat_s *buf)
{
struct stat hostbuf;
int ret;
/* Call the host's lstat routine */
ret = lstat(path, &hostbuf);
if (ret < 0)
{
ret = -errno;
}
/* Map the return values */
host_stat_convert(&hostbuf, buf);
return ret;
}
#endif /* CONFIG_FS_LINKS */
arch/sim/src/sim/win/sim_hostfs.c
+39
View File
@@ -461,3 +461,42 @@ int host_chstat(const char *path, const struct nuttx_stat_s *buf, int flags)
{
return -ENOSYS;
}
/****************************************************************************
* Name: host_link
****************************************************************************/
#ifdef CONFIG_FS_LINKS
int host_link(const char *path1, const char *path2)
{
return -ENOSYS;
}
/****************************************************************************
* Name: host_symlink
****************************************************************************/
int host_symlink(const char *target, const char *linkpath)
{
return -ENOSYS;
}
/****************************************************************************
* Name: host_readlink
****************************************************************************/
nuttx_ssize_t host_readlink(const char *path, char *buf,
nuttx_size_t bufsize)
{
return -ENOSYS;
}
/****************************************************************************
* Name: host_lstat
****************************************************************************/
int host_lstat(const char *path, struct nuttx_stat_s *buf)
{
return -ENOSYS;
}
#endif /* CONFIG_FS_LINKS */
arch/xtensa/src/common/xtensa_hostfs.c
+22
View File
@@ -256,3 +256,25 @@ int host_chstat(const char *path, const struct stat *buf, int flags)
{
return -ENOSYS;
}
#ifdef CONFIG_FS_LINKS
int host_link(const char *path1, const char *path2)
{
return -ENOSYS;
}
int host_symlink(const char *target, const char *linkpath)
{
return -ENOSYS;
}
ssize_t host_readlink(const char *path, char *buf, size_t bufsize)
{
return -ENOSYS;
}
int host_lstat(const char *path, struct stat *buf)
{
return -ENOSYS;
}
#endif /* CONFIG_FS_LINKS */
fs/hostfs/hostfs.c
+348 -24
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File diff suppressed because it is too large Load Diff
include/nuttx/fs/hostfs.h
+13
View File
@@ -256,6 +256,13 @@ int host_rename(const char *oldpath, const char *newpath);
int host_stat(const char *path, struct nuttx_stat_s *buf);
int host_chstat(const char *path,
const struct nuttx_stat_s *buf, int flags);
#ifdef CONFIG_FS_LINKS
int host_link(const char *path1, const char *path2);
int host_symlink(const char *target, const char *linkpath);
nuttx_ssize_t host_readlink(const char *path, char *buf,
nuttx_size_t bufsize);
int host_lstat(const char *path, struct nuttx_stat_s *buf);
#endif
#else
int host_open(const char *pathname, int flags, int mode);
int host_close(int fd);
@@ -280,6 +287,12 @@ int host_rename(const char *oldpath, const char *newpath);
int host_stat(const char *path, struct stat *buf);
int host_chstat(const char *path,
const struct stat *buf, int flags);
#ifdef CONFIG_FS_LINKS
int host_link(const char *path1, const char *path2);
int host_symlink(const char *target, const char *linkpath);
ssize_t host_readlink(const char *path, char *buf, size_t bufsize);
int host_lstat(const char *path, struct stat *buf);
#endif
#endif /* __SIM__ */
#endif /* __INCLUDE_NUTTX_FS_HOSTFS_H */