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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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This header is used also by the motorola_powerpc BSP.
Update #3254.
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Update #3254.
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The name suggests that this is a private implementation header file.
Update #3254.
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Update #3254.
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This makes it possible to easily use
EXTRA_DIST += foobar
in fragments.
Update #3254.
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Update #3254.
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If this has any issues, check that the change in linking the
16-bit startup code in Makefile.am generates the same code.
This was odd code and didn't need the RTEMS linkcmds anyway.
Updates #3520.
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Updates #3520.
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Patch was not intended to be pushed yet.
Updates #3520.
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Done:
arm
bfin
epiphany
i386
lm32
m32c
mips
moxie
nios2
or1k
powerpc
riscv
sh
sparc
sparc64
v850
To do:
m68k
Differences noted:
+ endfile was sometimes before startfile
+ endfile sometimes was hard-coded and did not have -qrtems version
+ Should -e XXX (e.g. entry point) be in linkcmds?
+ Should -u XXX (e.g. undefined symbols) be in linkcmds?
+ Typos: Odd spacing, "old_endfiles" typo, and *(old_endfiles) (not %)
+ nios2: Referenced crtnn.o not crtn.o (error)
Need to revisit:
+ m32c, moxie, sparc64 includes !nostdlib which is not used elsewhere
+ sh has -EL/-EB mapping. Why needed?
+ sparc64 didn't include crti.o/crtn.o but it is part of toolset
+ v850 uses something like this for link and end_file:
"%{qrtems: %(old_link)}"
This means that these are unnecessary. Try this on all.
+ mips uses old_link all the time also.
+ arm/tms750 adds -EB.
+ powerpc: Why do we have rtems_crt* and not use something from GCC?
Updates #3520.
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Updates #3250.
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This header file contained timing overhead values which are hard to
maintain.
Update #3254.
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Remove BSP-specific defaults for RTEMS_BSP_CLEANUP_OPTIONS to simplify
the BSP configuration and documentation. Change defaults to:
BSP_PRESS_KEY_FOR_RESET=0
BSP_RESET_BOARD_AT_EXIT=1
BSP_PRINT_EXCEPTION_CONTEXT=1
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Update #3239.
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The removal of the Edison code removed the wrong part of the
conditional.
Closes #3172.
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Remove old ISR parameter since is not used by the clock driver shell.
Make an implementation optional.
Update #3139.
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The BSP_output_char should output a char and not mingle with high level
processing, e.g. '\n' to '\r\n' translation. Move this translation to
rtems_putc(). Remove it from all the BSP_output_char implementations.
Close #3122.
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Update #2132.
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Intel has obsoleted this hardware and the BSP was never completed.
closes #3086.
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Change bsp_interrupt_vector_enable() and bsp_interrupt_vector_disable()
to not return a status code. Add bsp_interrupt_assert() and use it to
validate the vector number in the vector enable/disable implementations.
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Update #2468.
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When GCC option -march is not specifies i386-rtems toolchain
defaults to i386 architecture instruction set. It does not
provide atomic instructions which results in really inefficient
atomic_fetch_or even on UP build.
SMP build is broken with i386 set because libatomic and GCC
generate infinite loop for __atomic_fetch_add_4 used
in rtems_interrupt_lock_acquire
__atomic_fetch_add_4:
push %ebp
mov %esp,%ebp
movl $0x5,0x10(%ebp)
pop %ebp
jmp __atomic_fetch_add_4
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more available on i386.
This change is required to build RTEMS with classic "--enable-networking"
and link applications/tests which reference RTEMS_BSP_NETWORK_DRIVER_ATTACH.
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Fix the interrupt and stop the spurious interrupt from happening.
The fix moves the EOI to C code and cleans that functionality out
of the asm part of the ISR handler.
The code checks the ISR and IRR registers on the enable.
Only ack the master for a slave IRQ if the slave has no other pending
requests.
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Use the BAR to determine IO and memory mapped support for PCI UART
boards.
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Move the gdb stub from the i386 UART code to use the libchip drivers.
Use any ports discovered during the probes.
Add gdb control to the boot command line.
Change the device naming to the full device path, not a partial path.
For example /dev/com1.
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suppress GCC 6 warning.
closes #2634
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selection
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Start to migrate private symbols to bsp/bspimpl.h.
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closes #2638.
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updates #2638.
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