private_extern (or plain global in case of PECOFF, as the effect is
the same there): visible across object files, but they become local
when linked into a binary/library. This enables cross-unit inlining
of functions accessig implementation-only symbols.
git-svn-id: trunk@42340 -
Note: I'm not yet really happy with both AT_DATA_FORCEINDIRECT and AT_DATA_NOINDIRECT; maybe I should replace them with flags or something like that...
git-svn-id: trunk@35366 -
symbol is defined
o removed all places where AB_INDIRECT symbols were explicitly generated
o only generate AB_INDIRECT symbols for AT_DATA on systems_indirect_var_imports
o for some symbols an indirect symbol is always required (because they are
dereferenced by code in RTL units) -> use new AT_DATA_FORCEINDIRECT type
git-svn-id: trunk@34165 -
symconst.pas:
+ new constant suffix_indirect which will be used to denote indirect symbols
aasmbase.pas:
* TAsmsymbind: extend by AB_INDIRECT (which is used to define an indirect symbol) and AB_EXTERNAL_INDIRECT (which is used when an unknown indirect symbol is requested)
* asmsymbindname: adjust for TAsmsymbind changes
+ new constant asmsymbindindirect which is a set of both indirect asm symbol binds
aasmdata.pas, TAsmData:
* DefineAsmSymbolByClass: adjust to correctly declare an indirect symbol (with suffix_indirect) if one of the indirect asm symbol binds is used
* RefAsmSymbol: extend by a boolean parameter which is used to request an indirect symbol (usually AB_EXTERNAL_INDIRECT instead of AB_EXTERNAL)
git-svn-id: trunk@33278 -
(object-local, but not starting with (.)L, so they're still treated as
the start of a subsection by Darwin's linker when dead-stripping)
+ tasmdata.getstaticdatalabel() that uses the above
git-svn-id: branches/hlcgllvm@30338 -
llvm
* instead, add LLVM-specific name mangling based on the asmsymbol's bind
and typ whenever we write out its name
git-svn-id: branches/hlcgllvm@28166 -
the value set by -Ch or the second parameter to the $M directive). This is
equivalent to the heapmin value in Turbo Pascal 7 and ensures that the program
has at least this amount of heap space available (otherwise DOS will show a
'not enough memory' error and will refuse to load the program).
git-svn-id: trunk@28002 -
itself (instead of having a fixed 16k stack in the startup code). This allows
setting the stack size in these models with the -Cs option.
git-svn-id: trunk@27820 -
generate declarations when external symbols are referred in a taillvm
instruction
* added "declared" field to tasmsymbol for llvm to make avoid declaring a
symbol multiple times (harmless, but unnecessary)
* all kinds of declarations/definitions are now handled using the new
taillvmdecl, the old separate types have been removed
git-svn-id: branches/hlcgllvm@27010 -
for llvm, and empty for other targets:
o the '@' is required to mark a global/static symbol identifier in llvm
o the double quotes are required in case special characters are involved
o the \01 means that the name should not be mangled by llvm (e.g., by
default it still adds the C-prefix to all symbol names, and replaces
some special characters with alternatives)
* apply this prefix/suffix in all name mangling routines
git-svn-id: branches/hlcgllvm@26995 -
* TExeOutput.FixupSymbols:
+ Collect AT_GNU_IFUNC symbols in IndirectObjSymbols list for further processing by ELF back-end.
* Do not overwrite bind and size while fixing AB_COMMON symbols, this removes need in storing symbol size in every relocation and dedicated handling of oso_common section.
* Remove symbols with objsection<>nil from lists, so calling FixupSymbols several times skips already processed symbols.
git-svn-id: trunk@22393 -
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 $)
git-svn-id: trunk@20801 -
mangled name handling ansistring rather than pshortstring based (required
for JVM target; little effect on speed, some extra memory usage)
git-svn-id: branches/jvmbackend@18597 -
+ parsing of section directive for variables
+ section test
+ write section names in the assembler/binary writers correctly
* allow section only after ; and for embedded targets
git-svn-id: branches/usersections@17154 -
* the objc unit links against the Foundation instead of against the Cocoa
framework, and inludes an interface to either the fragile or non-fragile
obj-c run time depending on the target platform
+ support for the non-fragile Objective-C runtime/ABI, as used on Mac OS X
for ARM (iPhone) 64 bit (PowerPC/64, x86_64) -- all these targets now
are now also supported for the objectivec1 modeswitch
+ support for private_extern symbol bindings, required for the above
* mark objcclasses that are declared in the implementation section of a
unit as "hidden" (not sure what the effect is, since the Objective-C
runtime does not seem to do anything with this flag)
* enabled all obj-c tests for the newly supported platforms
git-svn-id: branches/objc@13763 -
a) it's unnecessary
b) it's slower than "direct" RIP-relative accessing
c) it's not supported on darwin/x86_64 in certain cases
* never use absolute addressing on darwin/x86_64 (like on win64)
* when not generating PIC, make sure that a_loadaddr_ref_reg on x86_64
also uses RIP-relative addressing for darwin/x86_64 and win64
git-svn-id: trunk@13760 -
the use of Objective-C 1.0 constructs. Because it is a mode switch, it
can be used cumulatively with every syntax mode. Note that a {$mode xxx}
statement resets all mode switches as well, so you cannot use the
-Mobjectivec1 variant if you have such a statement in a unit. This
modeswitch is currently only enabled for Darwin/PowerPC and Darwin/i386,
as the backend support is not yet implemented for other platforms.
+ implemented selector() statement that can be used to create an Objective-C
selector for the message with the specified *constant* name (in the future,
it will also work for Objective-C method identifiers)
+ added SEL type to the system unit (the selector() statement returns it)
+ added all Objective-C segments to the assembler writers
+ (currently mostly dummy) objc1 unit that is automatically included if the
{$modeswitch objectivec1} statement is used
+ some tests for the selector() statement
git-svn-id: trunk@12870 -
the syntax is exactly the same as for "external", except for
the keyword. It is currently only active for Darwin targets.
It should also work at least for Linux targets, but only with
the GNU assembler (which is why it is not activated there)
+ test for this functionality
git-svn-id: trunk@12009 -
without relocations in sec_rodata_norel. It should be possible to make
this new section read-only on all platforms, although currently it
is only done for darwin, and for non-pic code written using the
-Aas assembler writer.
Most platforms also have a special section for "constant but with
relocations" data, but such a section is currently only used for
Darwin (others still use plain .data sections for that, like they
did before)
git-svn-id: trunk@8650 -
