Icecream95
a6fee1add8
Use bx instead of mov for jumps on ARM
2020-04-09 21:30:13 +12:00
Icecream95
7f5f26269f
Stop setting the thumb bit except on jumps to veneers
...
Thanks to the previous commit, the jump targets should all be correct.
2020-04-09 20:37:12 +12:00
Icecream95
8045386a45
Return a function pointer from jit_address
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This will allow supporting ARM code on armv7 without having to change
any users of Lightening.
2020-04-09 20:26:35 +12:00
Icecream95
ba24ce465f
Use an rsh of 0 for jumps on ARM
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This will allow supporting jumping to ARM (as opposed to Thumb) code.
2020-04-09 20:24:47 +12:00
Icecream95
1656fc1d81
Add a test for local forward and backward jumps
2020-04-09 17:31:25 +12:00
Icecream95
aacaa6e38c
Add separate functions for veneer patching
2020-04-06 19:52:29 +12:00
Icecream95
297ae99c3f
Add flag bits to the jit_reloc_kind enum
2020-04-06 16:04:57 +12:00
Andy Wingo
763b1f87e7
Switch CI to use Debian stable
2020-02-18 09:56:11 +01:00
Andy Wingo
a96c0188f1
Ensure 32 bytes of stack are reserved on 64-bit Windows targets
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* lightening/x86.c (reset_abi_arg_iterator): Reserve 32 stack bytes on
64-bit Windows systems, in accordance with ABI. Thanks a million to
Charles Stanhope for the patch and to Mike Gran for testing!
2020-02-17 22:01:14 +01:00
Andy Wingo
2db2b12e85
Fix mips32r6 bug
...
See also:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=925129
http://hades.mech.northwestern.edu/images/1/16/MIPS32_Architecture_Volume_II-A_Instruction_Set.pdf
https://lists.gnu.org/archive/html/lightning/2019-08/msg00010.html
https://lists.gnu.org/archive/html/guile-devel/2019-08/msg00030.html
* lightening/mips-cpu.c: Fix encoding of LR. Thanks to Bruno Haible.
2020-01-06 21:58:04 +01:00
Andy Wingo
1c36f036f6
push/pop of link register does not affect stack size on x86
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* lightening/x86-cpu.c (pop_link_register, push_link_register): Don't
record stack size changes here.
2019-06-20 10:53:12 +02:00
Andy Wingo
62183fb098
Add jmpi_with_link instruction
...
The existing calli / callr interface is for ABI calls. Sometimes though
you want to call some of your own code, just to get the current return
address. ARM's branch-and-link instructions are ideal for this but they
don't exist on x86; there we emulate them by adding corresponding
pop_link_register / push_link_register instructions that are no-ops on
ARM.
* lightening.h (FOR_EACH_INSTRUCTION): Add jit_jmpi_with_link,
pop_link_register, push_link_register.
* lightening/arm-cpu.c:
* lightening/x86-cpu.c:
* lightening/aarch64-cpu.c (jmpi_with_link, push_link_register)
(pop_link_register): Add implementations.
* lightening/arm.h:
* lightening/aarch64.h:
* lightening/x86.h (JIT_LR): New definition.
* tests/link-register.c: New test.
2019-06-20 10:13:37 +02:00
Andy Wingo
84b9ef087b
Add breakpoint instruction
2019-05-27 18:29:26 +02:00
Andy Wingo
23bfbbaac1
Fix accidental change to ARMv7 ldr
2019-05-27 13:52:36 +02:00
Andy Wingo
bcdde6656b
Add atomic operations
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These operations emit the same code that GCC does for corresponding
operations under the sequential consistency memory model. It would be
possible to relax to acquire/release or something in the future.
2019-05-27 11:34:13 +02:00
Andy Wingo
909c0077cc
Correctly handle overflow when emitting literal pools
2019-05-27 11:34:13 +02:00
Andy Wingo
7c73f5f949
Add includable automake file
2019-05-23 10:02:00 +02:00
Andy Wingo
ff6ab1d2b1
Silence "unused" warnings
2019-05-22 23:04:30 +02:00
Andy Wingo
0b3393415e
Allow add_pending_literal to return false
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This avoids invalidating offsets for the reloc.
2019-05-22 17:29:10 +02:00
Andy Wingo
b67c4ed1e1
Avoid recursive pool emit for aarch64; add another overflow check
2019-05-21 16:05:03 +02:00
Andy Wingo
33754ba8c7
AArch64 fix
2019-05-21 15:34:40 +02:00
Andy Wingo
b7f367165f
Various fixes for as-needed emission of literal pool
2019-05-21 15:25:08 +02:00
Andy Wingo
568fdecc86
Fix literal pool emission on armv7
2019-05-21 14:19:48 +02:00
Andy Wingo
0518651bfd
Expose API to bless function pointers
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On ARMv7, we need to set the low bit to indicate that we're in
thumb-land.
2019-05-21 14:00:04 +02:00
Andy Wingo
ef7abb568a
Fix typo in previous commit, doh
2019-05-21 12:44:00 +02:00
Andy Wingo
d2c15dd6cd
Clear literal pool more thoroughly
2019-05-21 12:38:53 +02:00
Andy Wingo
723f70ee11
Clear missing bit from literal pool
2019-05-21 12:24:20 +02:00
Andy Wingo
f49752eac0
Avoid using x18 on AArch64
2019-05-21 12:02:40 +02:00
Andy Wingo
58fc136722
Fix bounds checking on negative ldr offsets for aarch64
2019-05-20 21:35:42 +02:00
Andy Wingo
2e53911c22
Update README
2019-05-20 15:45:51 +02:00
Andy Wingo
c671c0868e
Fix CI on ARMv7
2019-05-20 15:38:37 +02:00
Andy Wingo
0b5f05a8a5
Attempt to get CI working on ARMv7
2019-05-20 15:30:06 +02:00
Andy Wingo
0b7c0367d4
Add ARMv7 testing to CI
2019-05-20 15:25:03 +02:00
Andy Wingo
0b723c0401
ARMv7 backend passing all tests!
2019-05-20 15:20:33 +02:00
Andy Wingo
7dd18bddd7
ARMv7 backend compiling without warnings
2019-05-20 11:02:21 +02:00
Andy Wingo
8ce07131f1
Beginnings of VFP port to lightening
2019-05-19 23:29:10 +02:00
Andy Wingo
1ea34693cb
Port of arm-cpu.c to current lightening
2019-05-19 22:21:50 +02:00
Andy Wingo
b71ddba1f7
Beginnings of ARMv7 backend
2019-05-17 10:59:59 +02:00
Andy Wingo
0da87968d1
Remove unused jit_{gpr,fpr}_is_callee_save
2019-05-17 10:59:05 +02:00
Andy Wingo
eaf702765d
Remove software floating-point ARMv7 support; ARMv7 test env
2019-05-17 09:39:01 +02:00
Andy Wingo
c0e9302e9f
Update README and guix invocations in test suite
2019-05-16 13:56:56 +02:00
Andy Wingo
43ea9aee2c
Attempt to fix CI on Debian for AArch64
2019-05-16 12:43:35 +02:00
Andy Wingo
77c4b56a6d
Attempt to fix CI on Debian
2019-05-16 12:37:54 +02:00
Andy Wingo
da98f48ce7
Attempt to fix CI on Debian
2019-05-16 12:28:07 +02:00
Andy Wingo
2badf61add
Attempt to fix CI on Debian
2019-05-16 12:26:35 +02:00
Andy Wingo
d6e23795d1
Attempt to fix CI on Debian
2019-05-16 12:24:00 +02:00
Andy Wingo
f679e9e8af
Attempt to fix CI on Debian
2019-05-16 12:22:18 +02:00
Andy Wingo
8977016a89
Fix YAML for CI
2019-05-16 12:11:12 +02:00
Andy Wingo
826d5a95c3
Fix dpkg --add-architecture invocation
2019-05-16 12:08:22 +02:00
Andy Wingo
926275e123
Add support for aarch64 in CI
2019-05-16 12:03:38 +02:00