gensyscalls: alignment fixup for ARM

ARM ABI has different alignment requirements based on parameter size:
* parameters not larger than 4 bytes are aligned on 4 bytes
* parameters larger than 4 bytes are aligned on 8 bytes

see:
Procedure Call Standard for the Arm Architecture
sections 5.1, Fundamental Data Types
and 6.5, Parameter Passing

Therefore the following changes are introduced in gensyscalls tool:
* new optional define SYSCALL_LONG_PARAMETER_ALIGNMENT_TYPE is introduced
* it's defined only on ARM
* on other architectures it takes on the value of SYSCALL_PARAMETER_ALIGNMENT_TYPE as a default
* constants kLongParameterAlignmentType and kLongParameterAlignmentSize are introduced
* Syscall::AddParameter uses this value for aligning parameters larger than 4 bytes

Change-Id: I7e766e0ea9d07001643e813722b462b1f044921a
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5112
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>

Removed unnecessary inclusions of <boot/kernel_args.h> in private kernel
headers and respectively added includes in source files.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37259 a95241bf-73f2-0310-859d-f6bbb57e9c96

Changed the way the syscall infos are generated. We no longer include the
preprocessed <syscalls.h> header in sources compiled for the build platform.
Instead we're generating macros for the return type and parameter type sizes
via the CreateAsmStructOffsetsHeader rule (no template magic anymore) and
thus get a clear separation of host and target code, resulting in better
portability (although surprisingly enough the build already worked on 64 bit
hosts).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34323 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Cleanup, no functional change.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34237 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed warnings.
* Automatic whitespace cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31114 a95241bf-73f2-0310-859d-f6bbb57e9c96

strchr(const char*, ...) returns const char* in C++, identified by gcc 4.4.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30882 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Vasilis Kaoutsis: Added missing headers. Fixes the build on
certain Linux distributions.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24109 a95241bf-73f2-0310-859d-f6bbb57e9c96

Also include info about the syscall return type in the
extended_syscall_info structure.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23916 a95241bf-73f2-0310-859d-f6bbb57e9c96

Renamed syscall_parameters_info structure to extended_syscall_info (and
kSyscallParametersInfos to kExtendedSyscallInfos) and added "name"
field. Now the classes for syscall kernel tracing don't need to lookup
the syscall function symbol anymore, which speeds up printing/filtering
of those entries dramatically.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23687 a95241bf-73f2-0310-859d-f6bbb57e9c96

Generate a kernel array kSyscallParametersInfos containing information
about syscall parameters. Particularly interesting is a type_code field
for each parameter. The mechanism isn't very accurate, but we can
classify everything in string, pointer, and integer types.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23618 a95241bf-73f2-0310-859d-f6bbb57e9c96

gcc4 requires a cast, so we prepend (void *) to cast every syscall function
fixed syscall.cpp inclusions due to renaming


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23611 a95241bf-73f2-0310-859d-f6bbb57e9c96

Merged branch haiku/branches/developer/bonefish/optimization revision
23139 into trunk, with roughly the following changes (for details svn
log the branch):
* The int 99 syscall handler is now fully in assembly.
* Added a sysenter/sysexit handler and use it on Pentiums that support
it (via commpage).
* Got rid of i386_handle_trap(). A bit of functionality was moved into
the assembly handler which now uses a jump table to call C functions
handling the respective interrupt.
* Some optimizations to get user debugger support code out of the
interrupt handling path.
* Introduced a thread::flags fields which allows to skip handling of
rare events (signals, user debug enabling/disabling) on the
common interrupt handling path.
* Got rid of the explicit iframe stack. The iframes can still be
retrieved by iterating through the stack frames.
* Made the commpage an architecture independent feature. It's used for
the real time data stuff (instead of creating a separate area).
* The x86 CPU modules can now provide processor optimized versions for
common functions (currently memcpy() only). They are used in the
kernel and are provided to the userland via commpage entries.
* Introduced build system feature allowing easy use of C structure
member offsets in assembly code.

Changes after merging:
* Fixed merge conflict in src/system/kernel/arch/x86/arch_debug.cpp
(caused by refactoring and introduction of "call" debugger command).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23370 a95241bf-73f2-0310-859d-f6bbb57e9c96

Reworked the way how the gensyscalls stuff finds out about
the sizes and alignments of syscall parameters. It no longer
generates and compiles functions with the same signature as the
syscalls. This simply doesn't generally work for cross-compilation.
Instead we provide a bit of architecture-specific code that knows
how things work for the target architecture.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15196 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Don't use int32 in sources to be compiled for the build platform
(Daniel Furrer).
* The strace interface for the generated file changed.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11495 a95241bf-73f2-0310-859d-f6bbb57e9c96

Write return and parameter type names into the generated strace file.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11446 a95241bf-73f2-0310-859d-f6bbb57e9c96

We generate two more files now: A simple array with the kernel function
pointers and overall parameters size for the kernel and some more
sophisticated code for strace.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11339 a95241bf-73f2-0310-859d-f6bbb57e9c96

We do now also generate a header file that defines macros for the syscall numbers.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9133 a95241bf-73f2-0310-859d-f6bbb57e9c96

Removed unnecessary include.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8916 a95241bf-73f2-0310-859d-f6bbb57e9c96

No need to define the types here, since arch_config.h now uses C types.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8908 a95241bf-73f2-0310-859d-f6bbb57e9c96

gensyscalls.cpp should now build under Linux again.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8902 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fixed a problem we had with bool parameters (probably with all types that consume more storage when being passed as function parameters).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8784 a95241bf-73f2-0310-859d-f6bbb57e9c96

Had to change the mechanism for automatically generating most of the
boring syscall stuff. It has two phases now: The first one
(gensyscallinfos) parses syscalls.h and generates a source file containing
all the required information. This file is compiled and linked to
gensyscalls, which generates the actual output files.
Added to the build.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8697 a95241bf-73f2-0310-859d-f6bbb57e9c96

Completed. Properly generates the desired outputs now.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8622 a95241bf-73f2-0310-859d-f6bbb57e9c96

The beginnings of a small tool to parse syscalls.h and generate the assembly file performing the calls and the respective part of kernel syscall dispatcher. The parsing part is done.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8618 a95241bf-73f2-0310-859d-f6bbb57e9c96

Removed unnecessary inclusions of <boot/kernel_args.h> in private kernel
headers and respectively added includes in source files.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37259 a95241bf-73f2-0310-859d-f6bbb57e9c96

Changed the way the syscall infos are generated. We no longer include the
preprocessed <syscalls.h> header in sources compiled for the build platform.
Instead we're generating macros for the return type and parameter type sizes
via the CreateAsmStructOffsetsHeader rule (no template magic anymore) and
thus get a clear separation of host and target code, resulting in better
portability (although surprisingly enough the build already worked on 64 bit
hosts).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34323 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Cleanup, no functional change.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34237 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed warnings.
* Automatic whitespace cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31114 a95241bf-73f2-0310-859d-f6bbb57e9c96

strchr(const char*, ...) returns const char* in C++, identified by gcc 4.4.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30882 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Vasilis Kaoutsis: Added missing headers. Fixes the build on
certain Linux distributions.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24109 a95241bf-73f2-0310-859d-f6bbb57e9c96

Also include info about the syscall return type in the
extended_syscall_info structure.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23916 a95241bf-73f2-0310-859d-f6bbb57e9c96

Renamed syscall_parameters_info structure to extended_syscall_info (and
kSyscallParametersInfos to kExtendedSyscallInfos) and added "name"
field. Now the classes for syscall kernel tracing don't need to lookup
the syscall function symbol anymore, which speeds up printing/filtering
of those entries dramatically.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23687 a95241bf-73f2-0310-859d-f6bbb57e9c96

Generate a kernel array kSyscallParametersInfos containing information
about syscall parameters. Particularly interesting is a type_code field
for each parameter. The mechanism isn't very accurate, but we can
classify everything in string, pointer, and integer types.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23618 a95241bf-73f2-0310-859d-f6bbb57e9c96

gcc4 requires a cast, so we prepend (void *) to cast every syscall function
fixed syscall.cpp inclusions due to renaming


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23611 a95241bf-73f2-0310-859d-f6bbb57e9c96

Merged branch haiku/branches/developer/bonefish/optimization revision
23139 into trunk, with roughly the following changes (for details svn
log the branch):
* The int 99 syscall handler is now fully in assembly.
* Added a sysenter/sysexit handler and use it on Pentiums that support
it (via commpage).
* Got rid of i386_handle_trap(). A bit of functionality was moved into
the assembly handler which now uses a jump table to call C functions
handling the respective interrupt.
* Some optimizations to get user debugger support code out of the
interrupt handling path.
* Introduced a thread::flags fields which allows to skip handling of
rare events (signals, user debug enabling/disabling) on the
common interrupt handling path.
* Got rid of the explicit iframe stack. The iframes can still be
retrieved by iterating through the stack frames.
* Made the commpage an architecture independent feature. It's used for
the real time data stuff (instead of creating a separate area).
* The x86 CPU modules can now provide processor optimized versions for
common functions (currently memcpy() only). They are used in the
kernel and are provided to the userland via commpage entries.
* Introduced build system feature allowing easy use of C structure
member offsets in assembly code.

Changes after merging:
* Fixed merge conflict in src/system/kernel/arch/x86/arch_debug.cpp
(caused by refactoring and introduction of "call" debugger command).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23370 a95241bf-73f2-0310-859d-f6bbb57e9c96

Reworked the way how the gensyscalls stuff finds out about
the sizes and alignments of syscall parameters. It no longer
generates and compiles functions with the same signature as the
syscalls. This simply doesn't generally work for cross-compilation.
Instead we provide a bit of architecture-specific code that knows
how things work for the target architecture.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15196 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Don't use int32 in sources to be compiled for the build platform
(Daniel Furrer).
* The strace interface for the generated file changed.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11495 a95241bf-73f2-0310-859d-f6bbb57e9c96

Write return and parameter type names into the generated strace file.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11446 a95241bf-73f2-0310-859d-f6bbb57e9c96

We generate two more files now: A simple array with the kernel function
pointers and overall parameters size for the kernel and some more
sophisticated code for strace.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11339 a95241bf-73f2-0310-859d-f6bbb57e9c96

We do now also generate a header file that defines macros for the syscall numbers.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9133 a95241bf-73f2-0310-859d-f6bbb57e9c96

Removed unnecessary include.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8916 a95241bf-73f2-0310-859d-f6bbb57e9c96

No need to define the types here, since arch_config.h now uses C types.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8908 a95241bf-73f2-0310-859d-f6bbb57e9c96

gensyscalls.cpp should now build under Linux again.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8902 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fixed a problem we had with bool parameters (probably with all types that consume more storage when being passed as function parameters).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8784 a95241bf-73f2-0310-859d-f6bbb57e9c96

Had to change the mechanism for automatically generating most of the
boring syscall stuff. It has two phases now: The first one
(gensyscallinfos) parses syscalls.h and generates a source file containing
all the required information. This file is compiled and linked to
gensyscalls, which generates the actual output files.
Added to the build.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8697 a95241bf-73f2-0310-859d-f6bbb57e9c96

Completed. Properly generates the desired outputs now.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8622 a95241bf-73f2-0310-859d-f6bbb57e9c96

The beginnings of a small tool to parse syscalls.h and generate the assembly file performing the calls and the respective part of kernel syscall dispatcher. The parsing part is done.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8618 a95241bf-73f2-0310-859d-f6bbb57e9c96