Landon Fuller
b764162526
Fix the script name (build-iphone.sh -> build-ios.sh)
2010-09-19 09:04:34 -07:00
Landon Fuller
a3d9aa8501
Update the autogenerated autoconf/automake files.
2010-09-19 09:03:52 -07:00
Landon Fuller
c71480eaf8
Update automake/autoconf to conditionally build src/arm/trampoline.S if FFI_EXEC_TRAMPOLINE_TABLE is enabled.
2010-09-19 09:02:05 -07:00
Landon Fuller
9af9291b73
Add the trampoline table generated by gentramp.sh
2010-09-19 08:52:33 -07:00
Landon Fuller
68ce0c383e
Add a shell script that generates the ARM trampoline page.
...
This generates a page of 340 trampolines, aligned within one page. The
trampolines use pc-relative addressing to reference config data
(context, jump address) from a page placed directly prior to the
trampoline page. This can be used on systems -- such as iOS -- that do not
support writable, executable memory by remapping the executable page
containing the trampolines directly above a newly allocated writable
config page.
2010-09-19 08:38:19 -07:00
Landon Fuller
75af086be8
Update autoconf files
2010-09-18 18:12:19 -07:00
Landon Fuller
1ac92cca9b
Add autoconf check for W^X platforms that require a trampoline table.
...
This adds the FFI_EXEC_TRAMPOLINE_TABLE. The flag is enabled for
arm-apple-darwin, where PROT_EXEC on writable (or formerly writable) pages is
not permitted for sandboxed binaries.
2010-09-18 18:08:14 -07:00
Landon Fuller
be72fbab29
Use the correct host triple for arm/darwin
2010-09-18 18:02:25 -07:00
Landon Fuller
70150bdf45
Add missing UNWIND entry; disables .pad on non-EABI targets.
2010-09-18 16:38:03 -07:00
Landon Fuller
6b452bafae
Apple assembler support; fixed most gas/ELF-isms.
2010-09-18 16:21:32 -07:00
Landon Fuller
8ddac835b6
Fix placement of the __APPLE__ macro.
2010-09-18 15:38:06 -07:00
Landon Fuller
69043d0293
Work-around libffi's FP ABI detection.
...
On iOS, we must use the AAPCS floating point return value calling
conventions. libffi's ARM implementation will only use these conventions
if __SOFTFP__ is defined, which is not the case when GCC's
-mfloat-abi defaults to 'softfp' instead of 'soft'. To work around this
we manually define __SOFTFP__ for Apple platforms in the ARM-specific
sysv.S.
See also:
http://developer.apple.com/library/ios/#documentation/Xcode/Conceptual/iPhoneOSABIReference/Introduction/Introduction.html
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0042d/IHI0042D_aapcs.pdf
2010-09-18 15:32:08 -07:00
Landon Fuller
a82e6c354e
Add a stub iOS build script to drive autoconf
2010-09-18 14:44:24 -07:00
Landon Fuller