7:36 a.m.
Hi Vineet,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 50a1180e6cf12462bbbf3f2ebc5b93094ed9abee
commit: 98ec2edf58c820ef953fbdfcf98d706aa804b822 [8465/8758] ARCv2: save ABI registers
across signal handling
config: arc-randconfig-r001-20210610 (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
#
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi...
git remote add linux-next
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 98ec2edf58c820ef953fbdfcf98d706aa804b822
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
arch/arc/kernel/signal.c: In function 'stash_usr_regs':
> arch/arc/kernel/signal.c:101:21: error: 'struct pt_regs'
has no member named 'r30'; did you mean 'r10'?
101 |
v2abi.r30 = regs->r30;
| ^~~
| r10
arch/arc/kernel/signal.c: In function 'restore_usr_regs':
arch/arc/kernel/signal.c:134:9: error: 'struct pt_regs' has no member named
'r30'; did you mean 'r10'?
134 | regs->r30 = v2abi.r30;
| ^~~
| r10
arch/arc/kernel/signal.c: At top level:
arch/arc/kernel/signal.c:387:6: warning: no previous prototype for 'do_signal'
[-Wmissing-prototypes]
387 | void do_signal(struct pt_regs *regs)
| ^~~~~~~~~
arch/arc/kernel/signal.c:420:6: warning: no previous prototype for
'do_notify_resume' [-Wmissing-prototypes]
420 | void do_notify_resume(struct pt_regs *regs)
| ^~~~~~~~~~~~~~~~
vim +101 arch/arc/kernel/signal.c
63
64 static int
65 stash_usr_regs(struct rt_sigframe __user *sf, struct pt_regs *regs,
66 sigset_t *set)
67 {
68 int err;
69 struct user_regs_struct uregs;
70
71 uregs.scratch.bta = regs->bta;
72 uregs.scratch.lp_start = regs->lp_start;
73 uregs.scratch.lp_end = regs->lp_end;
74 uregs.scratch.lp_count = regs->lp_count;
75 uregs.scratch.status32 = regs->status32;
76 uregs.scratch.ret = regs->ret;
77 uregs.scratch.blink = regs->blink;
78 uregs.scratch.fp = regs->fp;
79 uregs.scratch.gp = regs->r26;
80 uregs.scratch.r12 = regs->r12;
81 uregs.scratch.r11 = regs->r11;
82 uregs.scratch.r10 = regs->r10;
83 uregs.scratch.r9 = regs->r9;
84 uregs.scratch.r8 = regs->r8;
85 uregs.scratch.r7 = regs->r7;
86 uregs.scratch.r6 = regs->r6;
87 uregs.scratch.r5 = regs->r5;
88 uregs.scratch.r4 = regs->r4;
89 uregs.scratch.r3 = regs->r3;
90 uregs.scratch.r2 = regs->r2;
91 uregs.scratch.r1 = regs->r1;
92 uregs.scratch.r0 = regs->r0;
93 uregs.scratch.sp = regs->sp;
94
95 err = __copy_to_user(&(sf->uc.uc_mcontext.regs.scratch),
&uregs.scratch,
96 sizeof(sf->uc.uc_mcontext.regs.scratch));
97
98 if (is_isa_arcv2()) {
99 struct user_regs_arcv2 v2abi;
100
101 v2abi.r30 = regs->r30;
102 #ifdef
CONFIG_ARC_HAS_ACCL_REGS
103 v2abi.r58 = regs->r58;
104 v2abi.r59 = regs->r59;
105 #else
106 v2abi.r58 = v2abi.r59 = 0;
107 #endif
108 err |= __copy_to_user(&(sf->uc.uc_mcontext.v2abi), &v2abi,
109 sizeof(sf->uc.uc_mcontext.v2abi));
110 }
111
112 err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(sigset_t));
113
114 return err ? -EFAULT : 0;
115 }
116
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org