c9692657c0
MINSIGSTKSZ and SIGSTKSZ for ARM64 are not correctly set in latest kernel. This patch fixes this issue. This issue is reported in LTP (testcase: sigaltstack02.c). Testcase failed when sigaltstack() called with stack size "MINSIGSTKSZ - 1" Since in Glibc-2.22, MINSIGSTKSZ is set to 5120 but in kernel it is set to 2048 so testcase gets failed. Testcase Output: sigaltstack02 1 TPASS : stgaltstack() fails, Invalid Flag value,errno:22 sigaltstack02 2 TFAIL : sigaltstack() returned 0, expected -1,errno:12 Reported Issue in Glibc Bugzilla: Bugfix in Glibc-2.22: [Bug 16850] https://sourceware.org/bugzilla/show_bug.cgi?id=16850 Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Akhilesh Kumar <akhilesh.k@samsung.com> Signed-off-by: Manjeet Pawar <manjeet.p@samsung.com> Signed-off-by: Rohit Thapliyal <r.thapliyal@samsung.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
122 lines
2.6 KiB
C
122 lines
2.6 KiB
C
#ifndef _UAPI__ASM_GENERIC_SIGNAL_H
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#define _UAPI__ASM_GENERIC_SIGNAL_H
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#include <linux/types.h>
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#define _NSIG 64
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#define _NSIG_BPW __BITS_PER_LONG
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#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
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#define SIGHUP 1
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#define SIGINT 2
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#define SIGQUIT 3
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#define SIGILL 4
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#define SIGTRAP 5
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#define SIGABRT 6
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#define SIGIOT 6
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#define SIGBUS 7
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#define SIGFPE 8
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#define SIGKILL 9
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#define SIGUSR1 10
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#define SIGSEGV 11
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#define SIGUSR2 12
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#define SIGPIPE 13
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#define SIGALRM 14
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#define SIGTERM 15
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#define SIGSTKFLT 16
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#define SIGCHLD 17
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#define SIGCONT 18
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#define SIGSTOP 19
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#define SIGTSTP 20
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#define SIGTTIN 21
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#define SIGTTOU 22
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#define SIGURG 23
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#define SIGXCPU 24
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#define SIGXFSZ 25
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#define SIGVTALRM 26
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#define SIGPROF 27
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#define SIGWINCH 28
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#define SIGIO 29
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#define SIGPOLL SIGIO
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/*
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#define SIGLOST 29
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*/
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#define SIGPWR 30
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#define SIGSYS 31
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#define SIGUNUSED 31
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/* These should not be considered constants from userland. */
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#define SIGRTMIN 32
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#ifndef SIGRTMAX
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#define SIGRTMAX _NSIG
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#endif
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/*
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* SA_FLAGS values:
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*
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* SA_ONSTACK indicates that a registered stack_t will be used.
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* SA_RESTART flag to get restarting signals (which were the default long ago)
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* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
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* SA_RESETHAND clears the handler when the signal is delivered.
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* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
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* SA_NODEFER prevents the current signal from being masked in the handler.
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*
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* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
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* Unix names RESETHAND and NODEFER respectively.
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*/
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#define SA_NOCLDSTOP 0x00000001
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#define SA_NOCLDWAIT 0x00000002
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#define SA_SIGINFO 0x00000004
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#define SA_ONSTACK 0x08000000
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#define SA_RESTART 0x10000000
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#define SA_NODEFER 0x40000000
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#define SA_RESETHAND 0x80000000
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#define SA_NOMASK SA_NODEFER
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#define SA_ONESHOT SA_RESETHAND
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/*
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* New architectures should not define the obsolete
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* SA_RESTORER 0x04000000
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*/
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#if !defined MINSIGSTKSZ || !defined SIGSTKSZ
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#define MINSIGSTKSZ 2048
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#define SIGSTKSZ 8192
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#endif
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#ifndef __ASSEMBLY__
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typedef struct {
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unsigned long sig[_NSIG_WORDS];
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} sigset_t;
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/* not actually used, but required for linux/syscalls.h */
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typedef unsigned long old_sigset_t;
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#include <asm-generic/signal-defs.h>
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#ifdef SA_RESTORER
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#define __ARCH_HAS_SA_RESTORER
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#endif
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#ifndef __KERNEL__
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struct sigaction {
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__sighandler_t sa_handler;
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unsigned long sa_flags;
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#ifdef SA_RESTORER
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__sigrestore_t sa_restorer;
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#endif
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sigset_t sa_mask; /* mask last for extensibility */
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};
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#endif
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typedef struct sigaltstack {
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void __user *ss_sp;
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int ss_flags;
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size_t ss_size;
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} stack_t;
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#endif /* __ASSEMBLY__ */
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#endif /* _UAPI__ASM_GENERIC_SIGNAL_H */
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