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unicorn/qemu/target/arm
History
Alistair Francis f8f3e50372
target/arm: Fix vector operation segfault 
Commit 89e68b575 "target/arm: Use vector operations for saturation"
causes this abort() when booting QEMU ARM with a Cortex-A15:

0 0x00007ffff4c2382f in raise () at /usr/lib/libc.so.6
1 0x00007ffff4c0e672 in abort () at /usr/lib/libc.so.6
2 0x00005555559c1839 in disas_neon_data_insn (insn=<optimized out>, s=<optimized out>) at ./target/arm/translate.c:6673
3 0x00005555559c1839 in disas_neon_data_insn (s=<optimized out>, insn=<optimized out>) at ./target/arm/translate.c:6386
4 0x00005555559cd8a4 in disas_arm_insn (insn=4081107068, s=0x7fffe59a9510) at ./target/arm/translate.c:9289
5 0x00005555559cd8a4 in arm_tr_translate_insn (dcbase=0x7fffe59a9510, cpu=<optimized out>) at ./target/arm/translate.c:13612
6 0x00005555558d1d39 in translator_loop (ops=0x5555561cc580 <arm_translator_ops>, db=0x7fffe59a9510, cpu=0x55555686a2f0, tb=<optimized out>, max_insns=<optimized out>) at ./accel/tcg/translator.c:96
7 0x00005555559d10d4 in gen_intermediate_code (cpu=cpu@entry=0x55555686a2f0, tb=tb@entry=0x7fffd7840080 <code_gen_buffer+126091347>, max_insns=max_insns@entry=512) at ./target/arm/translate.c:13901
8 0x00005555558d06b9 in tb_gen_code (cpu=cpu@entry=0x55555686a2f0, pc=3067096216, cs_base=0, flags=192, cflags=-16252928, cflags@entry=524288) at ./accel/tcg/translate-all.c:1736
9 0x00005555558ce467 in tb_find (cf_mask=524288, tb_exit=1, last_tb=0x7fffd783e640 <code_gen_buffer+126084627>, cpu=0x1) at ./accel/tcg/cpu-exec.c:407
10 0x00005555558ce467 in cpu_exec (cpu=cpu@entry=0x55555686a2f0) at ./accel/tcg/cpu-exec.c:728
11 0x000055555588b0cf in tcg_cpu_exec (cpu=0x55555686a2f0) at ./cpus.c:1431
12 0x000055555588d223 in qemu_tcg_cpu_thread_fn (arg=0x55555686a2f0) at ./cpus.c:1735
13 0x000055555588d223 in qemu_tcg_cpu_thread_fn (arg=arg@entry=0x55555686a2f0) at ./cpus.c:1709
14 0x0000555555d2629a in qemu_thread_start (args=<optimized out>) at ./util/qemu-thread-posix.c:502
15 0x00007ffff4db8a92 in start_thread () at /usr/lib/libpthread.

This patch ensures that we don't hit the abort() in the second switch
case in disas_neon_data_insn() as we will return from the first case.

Backports commit 2f143d3ad1c05e91cf2cdf5de06d59a80a95e6c8 from qemu
2019-05-24 18:02:32 -04:00
..
arm_ldst.h
arm-powerctl.c arm: Clarify the logic of set_pc() 2019-02-03 17:55:30 -05:00
arm-powerctl.h
cpu64.c target/arm: Implement ARMv8.5-RNG 2019-05-23 15:03:23 -04:00
cpu-qom.h
cpu.c target/arm: Convert to CPUClass::tlb_fill 2019-05-16 16:55:12 -04:00
cpu.h target/arm: Implement ARMv8.5-RNG 2019-05-23 15:03:23 -04:00
crypto_helper.c
helper-a64.c target/arm: check CF_PARALLEL instead of parallel_cpus 2019-05-04 22:44:32 -04:00
helper-a64.h target/arm: check CF_PARALLEL instead of parallel_cpus 2019-05-04 22:44:32 -04:00
helper-sve.h
helper.c target/arm: Implement ARMv8.5-RNG 2019-05-23 15:03:23 -04:00
helper.h target/arm: Use tcg_gen_abs_i64 and tcg_gen_gvec_abs 2019-05-16 16:43:02 -04:00
internals.h target/arm: Convert to CPUClass::tlb_fill 2019-05-16 16:55:12 -04:00
iwmmxt_helper.c
kvm-consts.h
Makefile.objs target/arm: Split out vfp_helper.c 2019-02-22 18:48:44 -05:00
neon_helper.c target/arm: Use tcg_gen_abs_i64 and tcg_gen_gvec_abs 2019-05-16 16:43:02 -04:00
op_addsub.h
op_helper.c target/arm: Convert to CPUClass::tlb_fill 2019-05-16 16:55:12 -04:00
pauth_helper.c target/arm: Put all PAC keys into a structure 2019-05-23 14:54:06 -04:00
psci.c
sve_helper.c tcg: Use tlb_fill probe from tlb_vaddr_to_host 2019-05-16 18:27:03 -04:00
sve.decode target/arm: Sychronize with qemu 2019-04-18 04:49:11 -04:00
translate-a64.c target/arm: Simplify BFXIL expansion 2019-05-24 18:01:26 -04:00
translate-a64.h
translate-sve.c tcg: Specify optional vector requirements with a list 2019-05-16 15:05:02 -04:00
translate.c target/arm: Fix vector operation segfault 2019-05-24 18:02:32 -04:00
translate.h target/arm: Implement M-profile lazy FP state preservation 2019-04-30 11:21:50 -04:00
unicorn_aarch64.c
unicorn_arm.c unicorn_arm: Treat registers as unsigned values in casts 2019-04-26 08:48:31 -04:00
unicorn.h
vec_helper.c target/arm: Add helpers for FMLAL 2019-02-28 15:31:48 -05:00
vfp_helper.c target/arm: Make sure M-profile FPSCR RES0 bits are not settable 2019-04-30 10:12:17 -04:00