diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2024-07-31 16:52:18 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2024-08-01 01:21:59 +0300 |
| commit | 93d975194522450894a6fe7554b28a14fbfe7214 (patch) | |
| tree | c1473b5a19d414f1cab22f097dfaabab818b2da8 /src | |
| parent | a7a589df15f4ba3d6642aa8ae031a9b3ed0f5a1f (diff) | |
libcamera: base: memfd: Handle uClibc compatibility with function wrapper
uClibc doesn't provide memfd_create(), which led libcamera to open-code
the call using syscall(). Sprinkling the code with #ifdef's isn't the
most readable option, so improve it by providing a local implementation
of memfd_create(), and call the function unconditionally from
MemFd::create(). This makes the main code path more readable.
Suggested-by: Nicolas Dufresne <nicolas@ndufresne.ca>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Milan Zamazal <mzamazal@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/libcamera/base/memfd.cpp | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/src/libcamera/base/memfd.cpp b/src/libcamera/base/memfd.cpp index 72474307..ed0b299b 100644 --- a/src/libcamera/base/memfd.cpp +++ b/src/libcamera/base/memfd.cpp @@ -20,15 +20,26 @@ * \brief Anonymous file creation */ -/* uClibc doesn't provide the file sealing API. */ #ifndef __DOXYGEN__ +namespace { + +/* uClibc doesn't provide the file sealing API. */ #if not HAVE_FILE_SEALS #define F_ADD_SEALS 1033 #define F_SEAL_SHRINK 0x0002 #define F_SEAL_GROW 0x0004 #endif + +#if not HAVE_MEMFD_CREATE +int memfd_create(const char *name, unsigned int flags) +{ + return syscall(SYS_memfd_create, name, flags); +} #endif +} /* namespace */ +#endif /* __DOXYGEN__ */ + namespace libcamera { LOG_DECLARE_CATEGORY(File) @@ -72,11 +83,7 @@ LOG_DECLARE_CATEGORY(File) */ UniqueFD MemFd::create(const char *name, std::size_t size, Seals seals) { -#if HAVE_MEMFD_CREATE int ret = memfd_create(name, MFD_ALLOW_SEALING | MFD_CLOEXEC); -#else - int ret = syscall(SYS_memfd_create, name, MFD_ALLOW_SEALING | MFD_CLOEXEC); -#endif if (ret < 0) { ret = errno; LOG(File, Error) |