ich777/linux_media
1
0
Fork 0
mirror of https://github.com/tbsdtv/linux_media.git synced 2025-07-23 04:33:26 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'siginfo-si_trapno-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

Browse Source 
Pull siginfo si_trapno updates from Eric Biederman:
 "The full set of si_trapno changes was not appropriate as a fix for the
  newly added SIGTRAP TRAP_PERF, and so I postponed the rest of the
  related cleanups.

  This is the rest of the cleanups for si_trapno that reduces it from
  being a really weird arch special case that is expect to be always
  present (but isn't) on the architectures that support it to being yet
  another field in the _sigfault union of struct siginfo.

  The changes have been reviewed and marinated in linux-next. With the
  removal of this awkward special case new code (like SIGTRAP TRAP_PERF)
  that works across architectures should be easier to write and
  maintain"

* 'siginfo-si_trapno-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  signal: Rename SIL_PERF_EVENT SIL_FAULT_PERF_EVENT for consistency
  signal: Verify the alignment and size of siginfo_t
  signal: Remove the generic __ARCH_SI_TRAPNO support
  signal/alpha: si_trapno is only used with SIGFPE and SIGTRAP TRAP_UNK
  signal/sparc: si_trapno is only used with SIGILL ILL_ILLTRP
  arm64: Add compile-time asserts for siginfo_t offsets
  arm: Add compile-time asserts for siginfo_t offsets
  sparc64: Add compile-time asserts for siginfo_t offsets
This commit is contained in:
Linus Torvalds
2021-09-01 14:42:36 -07:00
parent 477f70cd2a ee53488cc7
commit 48983701a1
26 changed files with 305 additions and 96 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
arch/alpha/kernel/traps.c
View File

@@ -227,7 +227,7 @@ do_entArith(unsigned long summary, unsigned long write_mask,
}
die_if_kernel("Arithmetic fault", regs, 0, NULL);
send_sig_fault(SIGFPE, si_code, (void __user *) regs->pc, 0, current);
send_sig_fault_trapno(SIGFPE, si_code, (void __user *) regs->pc, 0, current);
}
asmlinkage void
@@ -268,13 +268,13 @@ do_entIF(unsigned long type, struct pt_regs *regs)
regs->pc -= 4; /* make pc point to former bpt */
}
send_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc, 0,
send_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc,
current);
return;
case 1: /* bugcheck */
send_sig_fault(SIGTRAP, TRAP_UNK, (void __user *) regs->pc, 0,
current);
send_sig_fault_trapno(SIGTRAP, TRAP_UNK,
(void __user *) regs->pc, 0, current);
return;
case 2: /* gentrap */
@@ -335,8 +335,8 @@ do_entIF(unsigned long type, struct pt_regs *regs)
break;
}
send_sig_fault(signo, code, (void __user *) regs->pc, regs->r16,
current);
send_sig_fault_trapno(signo, code, (void __user *) regs->pc,
regs->r16, current);
return;
case 4: /* opDEC */
@@ -360,9 +360,9 @@ do_entIF(unsigned long type, struct pt_regs *regs)
if (si_code == 0)
return;
if (si_code > 0) {
send_sig_fault(SIGFPE, si_code,
(void __user *) regs->pc, 0,
current);
send_sig_fault_trapno(SIGFPE, si_code,
(void __user *) regs->pc,
0, current);
return;
}
}
@@ -387,7 +387,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
;
}
send_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc, 0, current);
send_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc, current);
}
/* There is an ifdef in the PALcode in MILO that enables a
@@ -402,7 +402,7 @@ do_entDbg(struct pt_regs *regs)
{
die_if_kernel("Instruction fault", regs, 0, NULL);
force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc, 0);
force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc);
}
@@ -964,12 +964,12 @@ give_sigsegv:
si_code = SEGV_MAPERR;
mmap_read_unlock(mm);
}
send_sig_fault(SIGSEGV, si_code, va, 0, current);
send_sig_fault(SIGSEGV, si_code, va, current);
return;
give_sigbus:
regs->pc -= 4;
send_sig_fault(SIGBUS, BUS_ADRALN, va, 0, current);
send_sig_fault(SIGBUS, BUS_ADRALN, va, current);
return;
}