2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2025-01-09 14:14:00 +08:00
linux-next/arch/alpha/kernel
Eric W. Biederman e2bd64d92a signal/alpha: Document a conflict with SI_USER for SIGTRAP
Setting si_code to __SI_FAULT results in a userspace seeing
an si_code of 0.  This is the same si_code as SI_USER.  Posix
and common sense requires that SI_USER not be a signal specific
si_code.  As such this use of 0 for the si_code is a pretty
horribly broken ABI.

Given that alpha is on it's last legs I don't know that it is worth
fixing this, but it is worth documenting what is going on so that
no one decides to copy this bad decision.

This was introduced during the 2.5 development cycle so this
mess has had a long time for people to be able to depend upon it.

v2: Added FPE_FIXME for alpha as Helge Deller <deller@gmx.de> pointed out
    with his alternate patch one of the cases is SIGFPE not SIGTRAP.

Cc: Helge Deller <deller@gmx.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-alpha@vger.kernel.org
Acked-by: Richard Henderson <rth@twiddle.net>
History Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git
Ref: 0a635c7a84cf ("Fill in siginfo_t.")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2017-07-19 19:12:40 -05:00
..
.gitignore alpha: .gitignore vmlinux.lds 2009-01-15 16:39:40 -08:00
asm-offsets.c CRED: Separate task security context from task_struct 2008-11-14 10:39:16 +11:00
audit.c alpha: Enable system-call auditing support. 2014-01-31 09:21:55 -08:00
binfmt_loader.c get rid of pt_regs argument of ->load_binary() 2012-11-28 21:53:38 -05:00
console.c TTY:vt: convert remain take_over_console's users to do_take_over_console 2013-05-20 22:29:27 -07:00
core_apecs.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
core_cia.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
core_irongate.c PCI: Remove unnecessary #includes of <asm/pci.h> 2015-06-08 07:56:09 -05:00
core_lca.c Fix common misspellings 2011-03-31 11:26:23 -03:00
core_marvel.c char/genrtc: remove alpha support 2016-06-04 00:23:02 +02:00
core_mcpcia.c alpha: Remove set but unused variables. 2011-04-17 14:41:30 -07:00
core_polaris.c [PATCH] alpha pt_regs cleanups: machine_check() 2006-10-08 12:32:36 -07:00
core_t2.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
core_titan.c arch/alpha/kernel: Add kmalloc NULL tests 2009-11-30 15:38:19 -05:00
core_tsunami.c alpha: include module.h to fix modpost on Tsunami 2012-05-02 15:54:06 -04:00
core_wildfire.c [PATCH] alpha pt_regs cleanups: machine_check() 2006-10-08 12:32:36 -07:00
entry.S alpha: Enable system-call auditing support. 2014-01-31 09:21:55 -08:00
err_common.c PCI: Cleanup the includes of <linux/pci.h> 2007-05-02 19:02:35 -07:00
err_ev6.c alpha: delete non-required instances of <linux/init.h> 2015-05-26 10:01:48 -07:00
err_ev7.c alpha: titan and marvel build fixes 2009-05-02 15:36:10 -07:00
err_impl.h Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
err_marvel.c Fix common misspellings 2011-03-31 11:26:23 -03:00
err_titan.c alpha: Remove set but unused variables. 2011-04-17 14:41:30 -07:00
es1888.c
gct.c
head.S Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
io.c
irq_alpha.c alpha: Use qemu+cserve provided high-res clock and alarm. 2013-11-16 16:33:21 -08:00
irq_i8259.c alpha: Convert to new irq function names 2011-03-29 14:47:58 +02:00
irq_impl.h alpha: i8259, alcor, jensen wildfire: Convert irq_chip 2011-03-02 14:57:55 -05:00
irq_pyxis.c alpha: Convert to new irq function names 2011-03-29 14:47:58 +02:00
irq_srm.c alpha: Convert to new irq function names 2011-03-29 14:47:58 +02:00
irq.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
machvec_impl.h alpha: move exports to actual definitions 2016-08-07 23:47:18 -04:00
Makefile alpha: move exports to actual definitions 2016-08-07 23:47:18 -04:00
module.c module: use a structure to encapsulate layout. 2015-12-04 22:46:25 +01:00
osf_sys.c osf_sigstack(): switch to put_user() 2017-05-27 16:38:39 -04:00
pc873xx.c alpha: Detect Super IO chip, no IDE on Avanti, enable EPP19 2010-06-15 14:19:08 -04:00
pc873xx.h alpha: Detect Super IO chip, no IDE on Avanti, enable EPP19 2010-06-15 14:19:08 -04:00
pci_impl.h alpha/PCI: replace pci_probe_only with pci_flags 2012-02-23 20:18:56 -07:00
pci_iommu.c treewide: Constify most dma_map_ops structures 2017-01-24 12:23:35 -05:00
pci-noop.c treewide: Constify most dma_map_ops structures 2017-01-24 12:23:35 -05:00
pci-sysfs.c alpha/PCI: Call iomem_is_exclusive() for IORESOURCE_MEM, but not IORESOURCE_IO 2016-04-25 15:59:50 -05:00
pci.c PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code" 2015-09-15 13:18:04 -05:00
perf_event.c alpha: Replace __get_cpu_var 2014-08-26 13:45:53 -04:00
process.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
proto.h alpha: Use qemu+cserve provided high-res clock and alarm. 2013-11-16 16:33:21 -08:00
ptrace.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
rtc.c rtc: cmos: move mc146818rtc code out of asm-generic/rtc.h 2016-06-04 00:20:00 +02:00
setup.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
signal.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
smc37c93x.c alpha: Remove set but unused variables. 2011-04-17 14:41:30 -07:00
smc37c669.c alpha: remove mysterious if zero-ed out includes 2012-07-30 17:25:11 -07:00
smp.c sched/headers: Move task->mm handling methods to <linux/sched/mm.h> 2017-03-03 01:43:28 +01:00
srm_env.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
srmcons.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sys_alcor.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_cabriolet.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_dp264.c alpha: Don't if-out dp264_device_interrupt. 2013-07-19 13:54:26 -07:00
sys_eb64p.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_eiger.c PCI: Remove unnecessary #includes of <asm/pci.h> 2015-06-08 07:56:09 -05:00
sys_jensen.c alpha: Reorganize rtc handling 2013-11-16 16:33:16 -08:00
sys_marvel.c alpha: clean up unnecessary MSI/MSI-X capability find 2015-05-26 10:01:44 -07:00
sys_miata.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_mikasa.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_nautilus.c PCI: Remove unnecessary #includes of <asm/pci.h> 2015-06-08 07:56:09 -05:00
sys_noritake.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_rawhide.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_ruffian.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_rx164.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_sable.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_sio.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_sx164.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_takara.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
sys_titan.c alpha: irq: remove deprecated use of IRQF_DISABLED 2013-04-07 12:59:30 -07:00
sys_wildfire.c Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
systbls.S alpha: Wire up all missing implemented syscalls 2015-05-26 10:01:50 -07:00
time.c clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
traps.c signal/alpha: Document a conflict with SI_USER for SIGTRAP 2017-07-19 19:12:40 -05:00
vmlinux.lds.S nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00