On Tue, Mar 19, 2019 at 6:26 PM Richard Henderson <
richard.hender...@linaro.org> wrote:
> Changes since v2:
> * Several generic tcg patches to improve dup vs dupi vs dupm.
>
> In particular, if a global temp (like guest r10) is not in
> a host register, we should duplicate from memory instead of
> loading to an integer register, spilling to stack, loading
> to a vector register, and then duplicating.
>
> * I have more confidence that 32-bit ppc host should work
> this time around. No testing on that front yet, but I've
> unified some code sequences with 64-bit ppc host.
>
> * Base altivec now supports V128 only. Moved V64 support to
> Power7 (v2.06), which has 64-bit load/store.
>
> * Dropped support for 64-bit vector multiply using Power8.
> The expansion was too large compared to using integer regs.
>
>
> r~
>
>
> Richard Henderson (17):
> target/arm: Fill in .opc for cmtst_op
> tcg: Assert fixed_reg is read-only
> tcg: Return bool success from tcg_out_mov
> tcg: Support cross-class moves without instruction support
> tcg: Allow add_vec, sub_vec, neg_vec, not_vec to be expanded
> tcg: Promote tcg_out_{dup,dupi}_vec to backend interface
> tcg: Manually expand INDEX_op_dup_vec
> tcg: Add tcg_out_dupm_vec to the backend interface
> tcg/i386: Implement tcg_out_dupm_vec
> tcg/aarch64: Implement tcg_out_dupm_vec
> tcg: Add INDEX_op_dup_mem_vec
> tcg/ppc: Initial backend support for Altivec
> tcg/ppc: Support vector shift by immediate
> tcg/ppc: Support vector multiply
> tcg/ppc: Update vector support to v2.06
> tcg/ppc: Update vector support to v2.07
> tcg/ppc: Update vector support to v3.00
>
> tcg/ppc/tcg-target.h | 36 +-
> tcg/ppc/tcg-target.opc.h | 11 +
> tcg/tcg-op.h | 1 +
> tcg/tcg-opc.h | 1 +
> target/arm/translate.c | 4 +
> tcg/aarch64/tcg-target.inc.c | 70 ++-
> tcg/arm/tcg-target.inc.c | 7 +-
> tcg/i386/tcg-target.inc.c | 78 ++-
> tcg/mips/tcg-target.inc.c | 3 +-
> tcg/ppc/tcg-target.inc.c | 1077 +++++++++++++++++++++++++++++++---
> tcg/riscv/tcg-target.inc.c | 5 +-
> tcg/s390/tcg-target.inc.c | 3 +-
> tcg/sparc/tcg-target.inc.c | 3 +-
> tcg/tcg-op-gvec.c | 88 +--
> tcg/tcg-op-vec.c | 60 +-
> tcg/tcg.c | 252 ++++++--
> tcg/tci/tcg-target.inc.c | 3 +-
> 17 files changed, 1482 insertions(+), 220 deletions(-)
> create mode 100644 tcg/ppc/tcg-target.opc.h
>
> --
> 2.17.2
>
>
Hi,
I applied this series to master on a G5 and a G4, both with Lubuntu. The
qemu-system-ppc and qemu-system-ppc64 builds fail to run on both. Below is
the gdb output from running a debug-enabled qemu-system-ppc on the G5.
Best,
Howard
hsp@hsp-G5-Lubuntu:~/qemu-master$ gdb --args ./qemu-system-ppc-debug -L
pc-bios -boot d -m 512 -M mac99,via=pmu -drive
file=/home/hsp/mac-images/10.3.iso,format=raw,media=cdrom
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html
>
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Reading symbols from ./qemu-system-ppc-debug...done.
(gdb) run
Starting program: /home/hsp/qemu-master/qemu-system-ppc-debug -L pc-bios
-boot d -m 512 -M mac99,via=pmu -drive
file=/home/hsp/mac-images/10.3.iso,format=raw,media=cdrom
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/powerpc-linux-gnu/libthread_db.so.1".
[New Thread 0xf7fa5f20 (LWP 25373)]
qemu-system-ppc-debug: /home/hsp/src/qemu-master/tcg/tcg.c:2201:
process_op_defs: Assertion `tdefs != ((void *)0)' failed.
Thread 1 "qemu-system-ppc" received signal SIGABRT, Aborted.
0x0eb73194 in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:54
54 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt full
#0 0x0eb73194 in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:54
r4 = 25369
r7 = 246887608
r12 = 0
arg2 = 25369
r5 = 6
r8 = 61490
r10 = 0
arg3 = 6
r0 = 250
r3 = 0
r6 = 16384
r9 = 0
r11 = 0
arg1 = 0
sc_err = <optimized out>
sc_ret = <optimized out>
pd = 0xf7fa8000
pid = 0
selftid = 25369
#1 0x0eb74ef4 in __GI_abort () at abort.c:89
save_stage = 2
act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction =
0x0}, sa_mask = {__val = {0,
4294957648, 32, 0, 0, 0, 0, 0, 0, 4160391448, 248113228,
4160391472, 248129648, 248112944,
4294967295, 283897088, 248111456, 1124116252, 671089698, 0
<repeats 13 times>}},
sa_flags = 277973508, sa_restorer = 0xecdab10 <_IO_2_1_stderr_>}
sigs = {__val = {32, 0 <repeats 31 times>}}
#2 0x0eb6a414 in __assert_fail_base (fmt=<optimized out>,
assertion=assertion@entry=0x10917850 "tdefs != ((void *)0)",
file=file@entry=0x1090fd98 "/home/hsp/src/qemu-master/tcg/tcg.c",
line=line@entry=2201,
function=function@entry=0x10918a04 <__PRETTY_FUNCTION__.36379>
"process_op_defs") at assert.c:92
str = 0x10ebed00 "\020든\016ͦ\\tem-ppc-debug:
/home/hsp/src/qemu-master/tcg/tcg.c:2201: process_op_defs: Assertion `tdefs
!= ((void *)0)' failed.\n"
total = 4096
#3 0x0eb6a4d4 in __GI___assert_fail (assertion=0x10917850 "tdefs != ((void
*)0)",
file=0x1090fd98 "/home/hsp/src/qemu-master/tcg/tcg.c", line=2201,
function=0x10918a04 <__PRETTY_FUNCTION__.36379> "process_op_defs") at
assert.c:101
No locals.
---Type <return> to continue, or q <return> to quit---
#4 0x1002d638 in process_op_defs (s=0x10d9f5e8 <tcg_init_ctx>)
at /home/hsp/src/qemu-master/tcg/tcg.c:2201
def = 0x10c81c0c <tcg_op_defs+3312>
type = TCG_TYPE_I32
i = 2
tdefs = 0x0
nb_args = 3
op = INDEX_op_dup2_vec
__PRETTY_FUNCTION__ = "process_op_defs"
#5 0x1002a56c in tcg_context_init (s=0x10d9f5e8 <tcg_init_ctx>)
at /home/hsp/src/qemu-master/tcg/tcg.c:957
op = 178
total_args = 468
n = 3
i = 922
def = 0x10c81fb4 <tcg_op_defs+4248>
args_ct = 0x10ec7c38
sorted_args = 0x10ebecf8
ts = 0x7b21a3
__PRETTY_FUNCTION__ = "tcg_context_init"
#6 0x1010c394 in cpu_gen_init () at
/home/hsp/src/qemu-master/accel/tcg/translate-all.c:237
No locals.
#7 0x1010decc in tcg_exec_init (tb_size=0) at
/home/hsp/src/qemu-master/accel/tcg/translate-all.c:1145
No locals.
#8 0x100dd5bc in tcg_init (ms=0x10e68200) at
/home/hsp/src/qemu-master/accel/tcg/tcg-all.c:66
No locals.
#9 0x100d3b94 in accel_init_machine (acc=0x10e16a18, ms=0x10e68200)
at /home/hsp/src/qemu-master/accel/accel.c:63
oc = 0x10e16a18
cname = 0x10dc58d0 "tcg-accel"
accel = 0x10ec4cb8
__func__ = "accel_init_machine"
ret = 283208216
#10 0x100d3d5c in configure_accelerator (ms=0x10e68200,
progname=0xffffe353 "/home/hsp/qemu-master/qemu-system-ppc-debug")
at /home/hsp/src/qemu-master/accel/accel.c:114
accel = 0x10928bb0 "tcg"
accel_list = 0x10ec44f0
---Type <return> to continue, or q <return> to quit---
tmp = 0x10ec44f0
ret = 0
accel_initialised = false
init_failed = false
acc = 0x10e16a18
#11 0x10301a48 in main (argc=11, argv=0xffffe144, envp=0xffffe174) at
vl.c:4300
i = 1
snapshot = 0
linux_boot = 715
initrd_filename = 0x10c87e58 <vfio_pci_dev_properties+296> ""
kernel_filename = 0xf7fc90cc <do_lookup_x+796> "\201a"
kernel_cmdline = 0x10 <error: Cannot access memory at address 0x10>
boot_order = 0x0
boot_once = 0x0
ds = 0x1090a64c <__libc_csu_init+140>
opts = 0x10dfab30
machine_opts = 0x10dfab30
icount_opts = 0x0
accel_opts = 0x0
olist = 0x10cdfac4 <qemu_machine_opts>
optind = 11
optarg = 0xffffe3b1
"file=/home/hsp/mac-images/10.3.iso,format=raw,media=cdrom"
loadvm = 0x0
machine_class = 0x10e3d400
cpu_model = 0x0
vga_model = 0x0
qtest_chrdev = 0x0
qtest_log = 0x0
incoming = 0x0
userconfig = true
nographic = false
display_remote = 0
log_mask = 0x0
log_file = 0x0
trace_file = 0x0
maxram_size = 536870912
ram_slots = 0
vmstate_dump_file = 0x0
---Type <return> to continue, or q <return> to quit---
main_loop_err = 0x0
err = 0x0
list_data_dirs = false
dir = 0x0
dirs = 0x10e69770
bdo_queue = {sqh_first = 0x0, sqh_last = 0xffffdec4}
__func__ = "main"
(gdb)
