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Updates #4729
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Use of malloc implies errno which adds TLS dependencies and prevents use
of this FDT wrapper library in BSP initialization code. This change
makes use of rtems_malloc and rtems_calloc which avoid TLS dependencies.
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Updates #4729
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- Coverity CID 1515930 issue
Updates #4729
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- Add support to get the parent address and size cells
- Provide support to get a reg prop address map
- Change getting a set of properties to uintptr_t
- Improve the debug mode of the ls command to print all props
Closes #4729
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Ensure that the index is released before the structure containing it is
freed and NULLed.
Updates #4460
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The second allocation check was mistakenly rechecking the first
allocation. It now checks the correct allocation and ensures that names
is not NULL.
Updates #4462
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Updates #3053.
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close() file 'bf' to avoid leaking descriptor.
CID 1437645: Resource leak in rtems_fdt_load().
Closes #4297
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Using 32bit types like uint32_t for pointers creates issues on 64 bit
architectures like AArch64. Replaced occurrences of these with uintptr_t,
which will work for both 32 and 64 bit architectures.
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The while loop, loops infinitely in case of raw FDT data.
The loop condition (size) is not modified during iterations.
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The compiler warning was:
../../../cpukit/libmisc/rtems-fdt/rtems-fdt.c:267:5: warning:
'strncpy' specified bound depends on the length of the source argument
267 | strncpy(path, name, namelen);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
It turns out that the `strncpy()` nor the buffer `path` is needed when
one uses `strncmp()` instead of `strcmp()`. This needs some change to
the algorithm but has the advantage that `name` is never truncated
to the size of the buffer `path`.
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This reverts commit 355bc37ad35a7d67a7209130171febe805c67f62.
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The compiler warning was:
../../../cpukit/libmisc/rtems-fdt/rtems-fdt.c:267:5: warning:
'strncpy' specified bound depends on the length of the source argument
267 | strncpy(path, name, namelen);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
It turns out that the `strncpy()` nor the buffer `path` is needed when
one uses `strncmp()` instead of `strcmp()`. This needs some change to
the algorithm but has the advantage that `name` is never truncated
to the size of the buffer `path`.
Note:
rtems-fdt.c, rtems-fdt-shell.c and cpukit/include/rtems/rtems-fdt.h
seem to be dead code. They implement a shell command `fdt` but that
command is not part of the shell nor of any macro in
cpukit/include/rtems/shellconfig.h.
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The argument to the ctype functions must be an int and the value of the
character must be representable as an unsigned char or equal to the
value of the macro EOF. If the argument has any other value, the
behavior is undefined.
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Update #2843.
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A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.
This has at least seven problems:
* The make preinstall step itself needs time and disk space.
* Errors in header files show up in the build tree copy. This makes it
hard for editors to open the right file to fix the error.
* There is no clear relationship between source and build tree header
files. This makes an audit of the build process difficult.
* The visibility of all header files in the build tree makes it
difficult to enforce API barriers. For example it is discouraged to
use BSP-specifics in the cpukit.
* An introduction of a new build system is difficult.
* Include paths specified by the -B option are system headers. This
may suppress warnings.
* The parallel build had sporadic failures on some hosts.
This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.
The new cpukit include directories are:
* cpukit/include
* cpukit/score/cpu/@RTEMS_CPU@/include
* cpukit/libnetworking
The new BSP include directories are:
* bsps/include
* bsps/@RTEMS_CPU@/include
* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include
There are build tree include directories for generated files.
The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.
The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.
Update #3254.
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Update #2133.
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- Provide application support for handling FDT blobs in RTEMS. This
is useful when interfacing FPGA fabrics.
- Provide a shell command to list a blob as well as provide read
and write access to addresses in the FTB.
Closes #3099.
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