o blocks are implemented as a variation of procedure variables
o declaration of a block variable: "test: procedure(c: char) is block;"
(C equivalent: (void)(^test)(char c) )
o the compiler automatically converts procedures/functions whose address
is passed to a block parameter or assigned to a block variable into
a "block". This consists of
1) generating a block descriptor (containing the size of the "block
literal" (see below) and the signature of the invocation function
encoded as an Objective-C selector)
2) generating a wrapper function around the original funcion (with C
calling convention), that has an extra first hidden parameter
(marked as vo_is_parentfp in the compiler) whose type is a pointer
to the describing "block literal"
3) generating the "block literal", which contains a pointer to an
external variable indicating whether this block captures context or
not, some flags (see compiler/blockutl.get_block_literal_flags for
info), a pointer to the wrapper function and a pointer to the
descriptor. In the future, it will also contain captured variables.
o right now, only global procedures/functions can be converted to blocks
(because they don't require state capturing). The next steps are (Object
Pascal) methods (not Objective-C methods, because Objective-C method
procvars don't exist) and finally nested functions
o on Mac OS X, the functionality will only work on Mac OS X 10.7 and later,
because we have to use the so-called "ABI.2010.3.16" to ensure that
our blocks aren't called as variadic functions by the runtime (which
came out after the Mac OS X 10.6 release)
o while the currently implemented functionality does not require any
library support at all, there's no use enabling it on other platforms
because unless it has been confirmed to work with a blocks runtime,
there's no point in using blocks (they're just somewhat bulky procvars
right now). Enabling it on other platforms (in combination with the
GNUStep Objective-C run time), should simply be a matter of adding
the right {$linklib xxx} statement to rtl/inc/blockrtl.pp file, adding
that file to Makefile.fpc for that platform and adding that platform
to the compiler/systems.systems_blocks_supported set
git-svn-id: branches/blocks@28232 -
* Changed direct references to linker classes in TSystemInfo records to enumerated ids.
* RegisterExtennalLinker and RegisterInternalLinker procedures replaced by single RegisterLinker procedure and moved to link.pas.
- TAbstractLinker is no longer necessary, removed.
This change allows to register linker once per id, rather than once per target, and also allows TSystemInfo records to be read-only.
git-svn-id: trunk@25279 -
fixes a couple of arm-embedded stuff,
adds some controllers, start of fpv4_s16 support, for a complete list of
changes see below:
------------------------------------------------------------------------
r22787 | laksen | 2012-10-20 22:00:36 +0200 (Sa, 20 Okt 2012) | 1 line
Properly do NR_DEFAULTFLAGS detection/allocation/deallocation
------------------------------------------------------------------------
r22782 | laksen | 2012-10-20 07:44:55 +0200 (Sa, 20 Okt 2012) | 1 line
Fixed flags detections code for wide->short optimization code for Thumb-2
------------------------------------------------------------------------
r22778 | laksen | 2012-10-19 20:23:14 +0200 (Fr, 19 Okt 2012) | 1 line
Added coprocessor registers, and support for 6 operands(MCR/MRC instructions, etc)
------------------------------------------------------------------------
r22647 | laksen | 2012-10-14 21:28:08 +0200 (So, 14 Okt 2012) | 1 line
Added register specifications to lpc1768.pp. From Joan Duran
------------------------------------------------------------------------
r22646 | laksen | 2012-10-14 21:10:20 +0200 (So, 14 Okt 2012) | 4 lines
Fixed some minor formating issues
Implemented a small heap mananger
Implemented console IO
Changed default LineEnding to CrLf(to ease console IO parsing)
------------------------------------------------------------------------
r22599 | laksen | 2012-10-09 08:58:58 +0200 (Di, 09 Okt 2012) | 1 line
Added all STM32F1 configurations
------------------------------------------------------------------------
r22597 | laksen | 2012-10-08 22:10:45 +0200 (Mo, 08 Okt 2012) | 1 line
Added initial support for the Cortex-M4F FPv4_S16 FPU
------------------------------------------------------------------------
r22596 | laksen | 2012-10-08 22:04:14 +0200 (Mo, 08 Okt 2012) | 1 line
Added FPv4_d16 FPU instructions, and a few extra registers
------------------------------------------------------------------------
r22592 | laksen | 2012-10-08 16:07:40 +0200 (Mo, 08 Okt 2012) | 2 lines
Added support for IT block merging
Added a peephole pattern check for UXTB->UXTH chains
------------------------------------------------------------------------
r22590 | laksen | 2012-10-08 14:30:00 +0200 (Mo, 08 Okt 2012) | 3 lines
Add CBNZ/CBZ instructions
Create preliminary Thumb-2 PeepHoleOptPass2 code, hacked together from the ARM mode code
Added a number of simple size optimizations for common Thumb-2 instructions
------------------------------------------------------------------------
r22582 | laksen | 2012-10-08 06:49:39 +0200 (Mo, 08 Okt 2012) | 3 lines
Fix optimizations of Thumb-2 code
Fix problem with loading of condition operand for IT instructions
Properly split IT blocks when register allocator tries to spill inside a block.
------------------------------------------------------------------------
r22581 | laksen | 2012-10-08 05:15:40 +0200 (Mo, 08 Okt 2012) | 4 lines
Fixed assembler calling command line for cpus>ARMv5TE. EDSP instructions will generate errors while assembling, due to RTL assembler routines
Updated boot code for all Cortex-M3 controllers, and sc32442b to use weak linking for exception tables.
Cortex-M3 devices now also share initialization routine to simplify maintenance
STM32F10x classes now have specific units which fit the interrupt source names and counts
------------------------------------------------------------------------
r22580 | laksen | 2012-10-08 05:10:44 +0200 (Mo, 08 Okt 2012) | 2 lines
Added support for .section, .set, .weak, and .thumb_set directive for GAS assembler reader
IFDEF'ed JVM specific assembler directives, to prevent ait_* set to exceed 32 elements
------------------------------------------------------------------------
r22579 | laksen | 2012-10-08 02:10:52 +0200 (Mo, 08 Okt 2012) | 3 lines
Remove all traces of the interrupt vector table generation mechanism
Clean up cpuinfo tables
Fixed ARMv7M bug(BLX <label> doesn't exist on that version)
git-svn-id: trunk@22792 -
Make macro MIPS/CPUMIPS/MIPS32 common for big endian and little endian mips processors
use MIPSEL* for little endian systems
use MIPSEB* for big endian systems
git-svn-id: trunk@21599 -
o support for the new codepage-aware ansistrings in the jvm branch
o empty ansistrings are now always represented by a nil pointer rather than
by an empty string, because an empty string also has a code page which
can confuse code (although this will make ansistrings harder to use
in Java code)
o more string helpers code shared between the general and jvm rtl
o support for indexbyte/word in the jvm rtl (warning: first parameter
is an open array rather than an untyped parameter there, so
indexchar(pcharvar^,10,0) will be equivalent to
indexchar[pcharvar^],10,0) there, which is different from what is
intended; changing it to an untyped parameter wouldn't help though)
o default() support is not yet complete
o calling fpcres is currently broken due to limitations in
sysutils.executeprocess() regarding handling unix quoting and
the compiler using the same command lines for scripts and directly
calling external programs
o compiling the Java compiler currently requires adding ALLOW_WARNINGS=1
to the make command line
git-svn-id: branches/jvmbackend@20887 -
of the AVR-specific ifdef'ed variant
o since the only special character we use in mangled names on all platforms
is $, added a new field to tasminfo called "dollarsign" that holds the
character $'s should be replaced with (if it doesn't have to be replaced,
leave it at $)
git-svn-id: trunk@20801 -
o new eabihf (hard float) abi
o vfpv3_d16 variant of VFP (default variant used by EABI assemblers: VFPv3
with only 16 double registers instead of 32) and pass it to GNU as
o make the odd numbered single precision floating point VFP registers
available for explicit allocation for use by the calling convention
* fixed copy/paste error in stdname of S30 register
-> use -dFPC_ARMHF to create an ARM eabi hard float compiler
(mantis #21554)
git-svn-id: trunk@20660 -
(= Android 4.0) java headers: java.*, javax.*, org.*, junit.*, android.*).
The RTL can also be used to target earlier versions of the Android
platform, but you manually have to take care of not using APIs that
weren't available yet. Adding separate units for separate platform
versions would only partly solve the problem, because some of the
classes used inside the system unit have also changed across
versions.
Use -Tandroid while compiling to select the Android OS as target
platform.
git-svn-id: branches/jvmbackend@19830 -
unicodestring = java.lang.String. The reason this was the default in
the past is that this was the first string type that was implemented,
and without it being the default most code involving string operations
would fail. Now the default strings types are the same as for other
targets
+ new {$modeswitch unicodestrings} directive, that when activated
*together* with {$h+},
1) changes char into an alias for widechar
2) changes string into an alias for unicodestring
3) changes the preferred string evaluation type (in case of uncertainty)
to unicodestring
{$modeswitch unicodestrings} with {$h-} does not change anything at all
regarding the string type (it still changes the char type)
+ new uuchar unit that redefines char as widechar, and which is automatically
included by the compiler if {$modeswitch unicodestrings} is enabled
git-svn-id: branches/jvmbackend@18781 -
o since the JVM target has no stack/framepointer that can be passed
on to nested routines, all local variables and parameters accessed
from nested routines are grouped into a local record whose address
is passed to nested routines. The same technique is also required
for LLVM in the future
git-svn-id: branches/jvmbackend@18588 -
