From: kernel test robot <lkp@intel.com>
Cc: oe-kbuild-all@lists.linux.dev, llvm@lists.linux.dev
Subject: drivers/gpu/drm/sti/sti_awg_utils.o: warning: objtool: awg_generate_instr+0xac: unreachable instruction
Date: Thu, 12 Sep 2024 04:09:27 +0800 [thread overview]
Message-ID: <202409120406.3Khlzere-lkp@intel.com> (raw)
CC: linux-kernel@vger.kernel.org
TO: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 77f587896757708780a7e8792efe62939f25a5ab
commit: 74bde7581df3e18061119e1b27b63d0a9ea57b7a drm/sti: Allow build with COMPILE_TEST=y
date: 4 months ago
config: x86_64-buildonly-randconfig-002-20240912 (https://download.01.org/0day-ci/archive/20240912/202409120406.3Khlzere-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240912/202409120406.3Khlzere-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409120406.3Khlzere-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/sti/sti_awg_utils.o: warning: objtool: awg_generate_instr+0xac: unreachable instruction
objdump-func vmlinux.o awg_generate_instr:
0000 0000000002df0330 <awg_generate_instr>:
0000 2df0330: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 2df0331: R_X86_64_NONE __fentry__-0x4
0005 2df0335: 55 push %rbp
0006 2df0336: 48 89 e5 mov %rsp,%rbp
0009 2df0339: 41 57 push %r15
000b 2df033b: 41 56 push %r14
000d 2df033d: 41 55 push %r13
000f 2df033f: 41 54 push %r12
0011 2df0341: 53 push %rbx
0012 2df0342: 48 8d 64 24 d8 lea -0x28(%rsp),%rsp
0017 2df0347: 48 89 cb mov %rcx,%rbx
001a 2df034a: 49 89 d5 mov %rdx,%r13
001d 2df034d: 49 89 f6 mov %rsi,%r14
0020 2df0350: 41 89 fc mov %edi,%r12d
0023 2df0353: e8 00 00 00 00 call 2df0358 <awg_generate_instr+0x28> 2df0354: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
0028 2df0358: 4d 85 f6 test %r14,%r14
002b 2df035b: 0f 8e 7e 01 00 00 jle 2df04df <awg_generate_instr+0x1af>
0031 2df0361: 4c 8d 7b 08 lea 0x8(%rbx),%r15
0035 2df0365: 48 b9 00 00 00 00 00 fc ff df movabs $0xdffffc0000000000,%rcx
003f 2df036f: 41 83 e5 01 and $0x1,%r13d
0043 2df0373: 4c 89 f8 mov %r15,%rax
0046 2df0376: 48 c1 e8 03 shr $0x3,%rax
004a 2df037a: 48 89 45 c0 mov %rax,-0x40(%rbp)
004e 2df037e: 8a 04 08 mov (%rax,%rcx,1),%al
0051 2df0381: 84 c0 test %al,%al
0053 2df0383: 0f 85 8d 01 00 00 jne 2df0516 <awg_generate_instr+0x1e6>
0059 2df0389: 41 c1 e5 09 shl $0x9,%r13d
005d 2df038d: 48 89 5d b0 mov %rbx,-0x50(%rbp)
0061 2df0391: 48 c1 eb 03 shr $0x3,%rbx
0065 2df0395: 4c 89 7d b8 mov %r15,-0x48(%rbp)
0069 2df0399: 4c 89 6d d0 mov %r13,-0x30(%rbp)
006d 2df039d: 45 8a 2f mov (%r15),%r13b
0070 2df03a0: 48 89 5d c8 mov %rbx,-0x38(%rbp)
0074 2df03a4: 41 80 fd 40 cmp $0x40,%r13b
0078 2df03a8: 49 bf 00 00 00 00 00 fc ff df movabs $0xdffffc0000000000,%r15
0082 2df03b2: 0f 83 2e 01 00 00 jae 2df04e6 <awg_generate_instr+0x1b6>
0088 2df03b8: 67 41 8d 04 24 lea (%r12d),%eax
008d 2df03bd: ff 24 c5 00 00 00 00 jmp *0x0(,%rax,8) 2df03c0: R_X86_64_32S .rodata+0x12625e0
0094 2df03c4: cc int3
0095 2df03c5: e8 00 00 00 00 call 2df03ca <awg_generate_instr+0x9a> 2df03c6: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
009a 2df03ca: eb 37 jmp 2df0403 <awg_generate_instr+0xd3>
009c 2df03cc: e8 00 00 00 00 call 2df03d1 <awg_generate_instr+0xa1> 2df03cd: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
00a1 2df03d1: 31 db xor %ebx,%ebx
00a3 2df03d3: eb 4f jmp 2df0424 <awg_generate_instr+0xf4>
00a5 2df03d5: e8 00 00 00 00 call 2df03da <awg_generate_instr+0xaa> 2df03d6: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
00aa 2df03da: eb 27 jmp 2df0403 <awg_generate_instr+0xd3>
00ac 2df03dc: e8 00 00 00 00 call 2df03e1 <awg_generate_instr+0xb1> 2df03dd: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
00b1 2df03e1: eb 20 jmp 2df0403 <awg_generate_instr+0xd3>
00b3 2df03e3: 49 ff ce dec %r14
00b6 2df03e6: 0f 84 b6 00 00 00 je 2df04a2 <awg_generate_instr+0x172>
00bc 2df03ec: e8 00 00 00 00 call 2df03f1 <awg_generate_instr+0xc1> 2df03ed: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
00c1 2df03f1: 44 89 f3 mov %r14d,%ebx
00c4 2df03f4: 31 c0 xor %eax,%eax
00c6 2df03f6: 41 bc 03 00 00 00 mov $0x3,%r12d
00cc 2df03fc: eb 1c jmp 2df041a <awg_generate_instr+0xea>
00ce 2df03fe: e8 00 00 00 00 call 2df0403 <awg_generate_instr+0xd3> 2df03ff: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
00d3 2df0403: 41 0f b6 de movzbl %r14b,%ebx
00d7 2df0407: eb 1b jmp 2df0424 <awg_generate_instr+0xf4>
00d9 2df0409: e8 00 00 00 00 call 2df040e <awg_generate_instr+0xde> 2df040a: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
00de 2df040e: eb 05 jmp 2df0415 <awg_generate_instr+0xe5>
00e0 2df0410: e8 00 00 00 00 call 2df0415 <awg_generate_instr+0xe5> 2df0411: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
00e5 2df0415: 44 89 f3 mov %r14d,%ebx
00e8 2df0418: 31 c0 xor %eax,%eax
00ea 2df041a: 81 e3 ff 03 00 00 and $0x3ff,%ebx
00f0 2df0420: 48 89 45 d0 mov %rax,-0x30(%rbp)
00f4 2df0424: 48 8b 45 c8 mov -0x38(%rbp),%rax
00f8 2df0428: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
00fd 2df042d: 4c 8b 7d b0 mov -0x50(%rbp),%r15
0101 2df0431: 74 08 je 2df043b <awg_generate_instr+0x10b>
0103 2df0433: 4c 89 ff mov %r15,%rdi
0106 2df0436: e8 00 00 00 00 call 2df043b <awg_generate_instr+0x10b> 2df0437: R_X86_64_PLT32 __asan_report_load8_noabort-0x4
010b 2df043b: 45 0f b6 ed movzbl %r13b,%r13d
010f 2df043f: 41 c1 e5 02 shl $0x2,%r13d
0113 2df0443: 4d 03 2f add (%r15),%r13
0116 2df0446: 49 bf 00 00 00 00 00 fc ff df movabs $0xdffffc0000000000,%r15
0120 2df0450: 4c 89 e8 mov %r13,%rax
0123 2df0453: 48 c1 e8 03 shr $0x3,%rax
0127 2df0457: 42 8a 04 38 mov (%rax,%r15,1),%al
012b 2df045b: 84 c0 test %al,%al
012d 2df045d: 75 55 jne 2df04b4 <awg_generate_instr+0x184>
012f 2df045f: 44 89 e0 mov %r12d,%eax
0132 2df0462: 48 8b 4d d0 mov -0x30(%rbp),%rcx
0136 2df0466: c1 e0 0a shl $0xa,%eax
0139 2df0469: 01 d9 add %ebx,%ecx
013b 2df046b: 09 c1 or %eax,%ecx
013d 2df046d: 48 8b 45 c0 mov -0x40(%rbp),%rax
0141 2df0471: 81 e1 ff 3f 00 00 and $0x3fff,%ecx
0147 2df0477: 41 89 4d 00 mov %ecx,0x0(%r13)
014b 2df047b: 42 8a 04 38 mov (%rax,%r15,1),%al
014f 2df047f: 4c 8b 7d b8 mov -0x48(%rbp),%r15
0153 2df0483: 84 c0 test %al,%al
0155 2df0485: 75 44 jne 2df04cb <awg_generate_instr+0x19b>
0157 2df0487: 45 8a 2f mov (%r15),%r13b
015a 2df048a: 49 29 de sub %rbx,%r14
015d 2df048d: 41 fe c5 inc %r13b
0160 2df0490: 4d 85 f6 test %r14,%r14
0163 2df0493: 45 88 2f mov %r13b,(%r15)
0166 2df0496: 7e 66 jle 2df04fe <awg_generate_instr+0x1ce>
0168 2df0498: e8 00 00 00 00 call 2df049d <awg_generate_instr+0x16d> 2df0499: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
016d 2df049d: e9 02 ff ff ff jmp 2df03a4 <awg_generate_instr+0x74>
0172 2df04a2: e8 00 00 00 00 call 2df04a7 <awg_generate_instr+0x177> 2df04a3: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
0177 2df04a7: 31 db xor %ebx,%ebx
0179 2df04a9: 45 31 e4 xor %r12d,%r12d
017c 2df04ac: 45 31 f6 xor %r14d,%r14d
017f 2df04af: e9 70 ff ff ff jmp 2df0424 <awg_generate_instr+0xf4>
0184 2df04b4: 44 89 e9 mov %r13d,%ecx
0187 2df04b7: 80 e1 07 and $0x7,%cl
018a 2df04ba: 80 c1 03 add $0x3,%cl
018d 2df04bd: 38 c1 cmp %al,%cl
018f 2df04bf: 7c 9e jl 2df045f <awg_generate_instr+0x12f>
0191 2df04c1: 4c 89 ef mov %r13,%rdi
0194 2df04c4: e8 00 00 00 00 call 2df04c9 <awg_generate_instr+0x199> 2df04c5: R_X86_64_PLT32 __asan_report_store4_noabort-0x4
0199 2df04c9: eb 94 jmp 2df045f <awg_generate_instr+0x12f>
019b 2df04cb: 44 89 f9 mov %r15d,%ecx
019e 2df04ce: 80 e1 07 and $0x7,%cl
01a1 2df04d1: 38 c1 cmp %al,%cl
01a3 2df04d3: 7c b2 jl 2df0487 <awg_generate_instr+0x157>
01a5 2df04d5: 4c 89 ff mov %r15,%rdi
01a8 2df04d8: e8 00 00 00 00 call 2df04dd <awg_generate_instr+0x1ad> 2df04d9: R_X86_64_PLT32 __asan_report_load1_noabort-0x4
01ad 2df04dd: eb a8 jmp 2df0487 <awg_generate_instr+0x157>
01af 2df04df: e8 00 00 00 00 call 2df04e4 <awg_generate_instr+0x1b4> 2df04e0: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
01b4 2df04e4: eb 1d jmp 2df0503 <awg_generate_instr+0x1d3>
01b6 2df04e6: e8 00 00 00 00 call 2df04eb <awg_generate_instr+0x1bb> 2df04e7: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
01bb 2df04eb: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 2df04ee: R_X86_64_32S .rodata+0x1262640
01c2 2df04f2: e8 00 00 00 00 call 2df04f7 <awg_generate_instr+0x1c7> 2df04f3: R_X86_64_PLT32 __drm_err-0x4
01c7 2df04f7: b8 ea ff ff ff mov $0xffffffea,%eax
01cc 2df04fc: eb 07 jmp 2df0505 <awg_generate_instr+0x1d5>
01ce 2df04fe: e8 00 00 00 00 call 2df0503 <awg_generate_instr+0x1d3> 2df04ff: R_X86_64_PLT32 __sanitizer_cov_trace_pc-0x4
01d3 2df0503: 31 c0 xor %eax,%eax
01d5 2df0505: 48 8d 64 24 28 lea 0x28(%rsp),%rsp
01da 2df050a: 5b pop %rbx
01db 2df050b: 41 5c pop %r12
01dd 2df050d: 41 5d pop %r13
01df 2df050f: 41 5e pop %r14
01e1 2df0511: 41 5f pop %r15
01e3 2df0513: 5d pop %rbp
01e4 2df0514: c3 ret
01e5 2df0515: cc int3
01e6 2df0516: 44 89 f9 mov %r15d,%ecx
01e9 2df0519: 80 e1 07 and $0x7,%cl
01ec 2df051c: 38 c1 cmp %al,%cl
01ee 2df051e: 0f 8c 65 fe ff ff jl 2df0389 <awg_generate_instr+0x59>
01f4 2df0524: 4c 89 ff mov %r15,%rdi
01f7 2df0527: e8 00 00 00 00 call 2df052c <awg_generate_instr+0x1fc> 2df0528: R_X86_64_PLT32 __asan_report_load1_noabort-0x4
01fc 2df052c: e9 58 fe ff ff jmp 2df0389 <awg_generate_instr+0x59>
0201 2df0531: cc int3
0202 2df0532: cc int3
0203 2df0533: cc int3
0204 2df0534: cc int3
0205 2df0535: cc int3
0206 2df0536: cc int3
0207 2df0537: cc int3
0208 2df0538: cc int3
0209 2df0539: cc int3
020a 2df053a: cc int3
020b 2df053b: cc int3
020c 2df053c: cc int3
020d 2df053d: cc int3
020e 2df053e: cc int3
020f 2df053f: cc int3
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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