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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2024-06-05 10:34:17 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2024-06-05 15:11:45 +0300 |
| commit | 48cb731d72e2bc54d3bf76eb35c6644fa2f924f2 (patch) | |
| tree | 9759e4e672731444a14e87be5a2378964b5c29b1 | |
| parent | 9f0d88695ed6691a3e18c256d9d49862b3af6e34 (diff) | |
libcamera: dma_buf_allocator: Work around lack of file seals in uClibc
uClibc doesn't provide the macros defining parameters for the file
sealing API. Define them manually as a work around.
Fixes: ea4baaacc325 ("libcamera: DmaBufAllocator: Support allocating from /dev/udmabuf")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
| -rw-r--r-- | meson.build | 4 | ||||
| -rw-r--r-- | src/libcamera/dma_buf_allocator.cpp | 8 |
2 files changed, 12 insertions, 0 deletions
diff --git a/meson.build b/meson.build index 1902ea2f..0ef4cdaa 100644 --- a/meson.build +++ b/meson.build @@ -74,6 +74,10 @@ cc = meson.get_compiler('c') cxx = meson.get_compiler('cpp') config_h = configuration_data() +if cc.has_header_symbol('fcntl.h', 'F_ADD_SEALS', prefix : '#define _GNU_SOURCE') + config_h.set('HAVE_FILE_SEALS', 1) +endif + if cc.has_header_symbol('unistd.h', 'issetugid') config_h.set('HAVE_ISSETUGID', 1) endif diff --git a/src/libcamera/dma_buf_allocator.cpp b/src/libcamera/dma_buf_allocator.cpp index d7d08e18..c06eca7d 100644 --- a/src/libcamera/dma_buf_allocator.cpp +++ b/src/libcamera/dma_buf_allocator.cpp @@ -127,6 +127,14 @@ DmaBufAllocator::~DmaBufAllocator() = default; * \return True if the DmaBufAllocator is valid, false otherwise */ +/* uClibc doesn't provide the file sealing API. */ +#ifndef __DOXYGEN__ +#if not HAVE_FILE_SEALS +#define F_ADD_SEALS 1033 +#define F_SEAL_SHRINK 0x0002 +#endif +#endif + UniqueFD DmaBufAllocator::allocFromUDmaBuf(const char *name, std::size_t size) { /* Size must be a multiple of the page size. Round it up. */ |