+2018-11-14 Patrick Bernardi <bernardi@adacore.com>
+
+ * libgnarl/a-intnam__linux.ads: Add SIGSYS.
+ * libgnarl/s-linux__alpha.ads, libgnarl/s-linux__android.ads,
+ libgnarl/s-linux__hppa.ads, libgnarl/s-linux__mips.ads,
+ libgnarl/s-linux__riscv.ads, libgnarl/s-linux__sparc.ads,
+ libgnarl/s-linux__x32.ads: Rename SIGLTHRRES, SIGLTHRCAN and
+ SIGLTHRDBG to SIG32, SIG33 and SIG34 as their names are
+ implementation specific.
+ * libgnarl/s-osinte__linux.ads, libgnarl/s-linux.ads: Add
+ SIGSYS. Move SIG32, SIG33 and SIG34 from the unmasked list to
+ the reserved list.
+
2018-11-14 Eric Botcazou <ebotcazou@adacore.com>
* exp_aggr.adb (Is_Static_Element): New predicate extracted
SIGPWR : constant Interrupt_ID :=
System.OS_Interface.SIGPWR; -- Power failure
+ SIGSYS : constant Interrupt_ID :=
+ System.OS_Interface.SIGSYS; -- bad system call
+
end Ada.Interrupts.Names;
SIGFPE : constant := 8; -- floating point exception
SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
SIGBUS : constant := 7; -- bus error
+ SIGUSR1 : constant := 10; -- user defined signal 1
SIGSEGV : constant := 11; -- segmentation violation
+ SIGUSR2 : constant := 12; -- user defined signal 2
SIGPIPE : constant := 13; -- write on a pipe with no one to read it
SIGALRM : constant := 14; -- alarm clock
SIGTERM : constant := 15; -- software termination signal from kill
- SIGUSR1 : constant := 10; -- user defined signal 1
- SIGUSR2 : constant := 12; -- user defined signal 2
+ SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
SIGCLD : constant := 17; -- alias for SIGCHLD
SIGCHLD : constant := 17; -- child status change
- SIGPWR : constant := 30; -- power-fail restart
- SIGWINCH : constant := 28; -- window size change
- SIGURG : constant := 23; -- urgent condition on IO channel
- SIGPOLL : constant := 29; -- pollable event occurred
- SIGIO : constant := 29; -- I/O now possible (4.2 BSD)
- SIGLOST : constant := 29; -- File lock lost
SIGSTOP : constant := 19; -- stop (cannot be caught or ignored)
SIGTSTP : constant := 20; -- user stop requested from tty
SIGCONT : constant := 18; -- stopped process has been continued
SIGTTIN : constant := 21; -- background tty read attempted
SIGTTOU : constant := 22; -- background tty write attempted
- SIGVTALRM : constant := 26; -- virtual timer expired
- SIGPROF : constant := 27; -- profiling timer expired
+ SIGURG : constant := 23; -- urgent condition on IO channel
SIGXCPU : constant := 24; -- CPU time limit exceeded
SIGXFSZ : constant := 25; -- filesize limit exceeded
- SIGUNUSED : constant := 31; -- unused signal (GNU/Linux)
- SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
- SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
- SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
- SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
+ SIGVTALRM : constant := 26; -- virtual timer expired
+ SIGPROF : constant := 27; -- profiling timer expired
+ SIGWINCH : constant := 28; -- window size change
+ SIGPOLL : constant := 29; -- pollable event occurred
+ SIGIO : constant := 29; -- I/O now possible (4.2 BSD)
+ SIGLOST : constant := 29; -- File lock lost
+ SIGPWR : constant := 30; -- power-fail restart
+ SIGSYS : constant := 31; -- bad system call
+ SIGUNUSED : constant := 31; -- unused signal (mapped to SIGSYS)
+ SIG32 : constant := 32; -- glibc internal signal
+ SIG33 : constant := 33; -- glibc internal signal
+ SIG34 : constant := 34; -- glibc internal signal
-- struct_sigaction offsets
SIGUSR1 : constant := 30; -- user defined signal 1
SIGUSR2 : constant := 31; -- user defined signal 2
- SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
- SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
- SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
+ SIG32 : constant := 32; -- glibc internal signal
+ SIG33 : constant := 33; -- glibc internal signal
+ SIG34 : constant := 34; -- glibc internal signal
SIGADAABORT : constant := SIGABRT;
-- Change this if you want to use another signal for task abort.
SIGXFSZ : constant := 25; -- filesize limit exceeded
SIGUNUSED : constant := 31; -- unused signal (GNU/Linux)
SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
- SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
- SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
- SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
+ SIG32 : constant := 32; -- glibc internal signal
+ SIG33 : constant := 33; -- glibc internal signal
+ SIG34 : constant := 34; -- glibc internal signal
-- struct_sigaction offsets
SIGXCPU : constant := 33; -- CPU time limit exceeded
SIGXFSZ : constant := 34; -- filesize limit exceeded
SIGSTKFLT : constant := 36; -- coprocessor stack fault (Linux)
- SIGLTHRRES : constant := 37; -- GNU/LinuxThreads restart signal
- SIGLTHRCAN : constant := 38; -- GNU/LinuxThreads cancel signal
- SIGLTHRDBG : constant := 39; -- GNU/LinuxThreads debugger signal
+ SIG32 : constant := 37; -- glibc internal signal
+ SIG33 : constant := 38; -- glibc internal signal
+ SIG34 : constant := 39; -- glibc internal signal
-- struct_sigaction offsets
SIGXCPU : constant := 30; -- CPU time limit exceeded
SIGXFSZ : constant := 31; -- filesize limit exceeded
- SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
- SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
- SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
+ SIG32 : constant := 32; -- glibc internal signal
+ SIG33 : constant := 33; -- glibc internal signal
+ SIG34 : constant := 34; -- glibc internal signal
-- These don't exist for Linux/MIPS. The constants are present
-- so that we can continue to use a-intnam-linux.ads.
SIGIO : constant := 29; -- I/O now possible (4.2 BSD)
SIGPWR : constant := 30; -- power-fail restart
SIGSYS : constant := 31; -- bad system call
-
- SIGLTHRRES : constant := 0; -- GNU/LinuxThreads restart signal
- SIGLTHRCAN : constant := 0; -- GNU/LinuxThreads cancel signal
- SIGLTHRDBG : constant := 0; -- GNU/LinuxThreads debugger signal
+ SIG32 : constant := 32; -- glibc internal signal
+ SIG33 : constant := 33; -- glibc internal signal
+ SIG34 : constant := 34; -- glibc internal signal
-- These don't exist for Linux/RISC-V. The constants are present
-- so that we can continue to use a-intnam-linux.ads.
SIGUSR1 : constant := 30; -- user defined signal 1
SIGUSR2 : constant := 31; -- user defined signal 2
- SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
- SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
- SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
+ SIG32 : constant := 32; -- glibc internal signal
+ SIG33 : constant := 33; -- glibc internal signal
+ SIG34 : constant := 34; -- glibc internal signal
SIGUNUSED : constant := 0;
SIGSTKFLT : constant := 0;
SIGXFSZ : constant := 25; -- filesize limit exceeded
SIGUNUSED : constant := 31; -- unused signal (GNU/Linux)
SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
- SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
- SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
- SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
+ SIG32 : constant := 32; -- glibc internal signal
+ SIG33 : constant := 33; -- glibc internal signal
+ SIG34 : constant := 34; -- glibc internal signal
-- struct_sigaction offsets
-- --
------------------------------------------------------------------------------
--- This is a GNU/Linux (GNU/LinuxThreads) version of this package
+-- This is a GNU/Linux version of this package
-- This package encapsulates all direct interfaces to OS services
-- that are needed by the tasking run-time (libgnarl).
SIGTRAP : constant := System.Linux.SIGTRAP;
SIGIOT : constant := System.Linux.SIGIOT;
SIGABRT : constant := System.Linux.SIGABRT;
+ SIGBUS : constant := System.Linux.SIGBUS;
SIGFPE : constant := System.Linux.SIGFPE;
SIGKILL : constant := System.Linux.SIGKILL;
- SIGBUS : constant := System.Linux.SIGBUS;
+ SIGUSR1 : constant := System.Linux.SIGUSR1;
SIGSEGV : constant := System.Linux.SIGSEGV;
+ SIGUSR2 : constant := System.Linux.SIGUSR2;
SIGPIPE : constant := System.Linux.SIGPIPE;
SIGALRM : constant := System.Linux.SIGALRM;
SIGTERM : constant := System.Linux.SIGTERM;
- SIGUSR1 : constant := System.Linux.SIGUSR1;
- SIGUSR2 : constant := System.Linux.SIGUSR2;
+ SIGSTKFLT : constant := System.Linux.SIGSTKFLT;
SIGCLD : constant := System.Linux.SIGCLD;
SIGCHLD : constant := System.Linux.SIGCHLD;
- SIGPWR : constant := System.Linux.SIGPWR;
- SIGWINCH : constant := System.Linux.SIGWINCH;
- SIGURG : constant := System.Linux.SIGURG;
- SIGPOLL : constant := System.Linux.SIGPOLL;
- SIGIO : constant := System.Linux.SIGIO;
- SIGLOST : constant := System.Linux.SIGLOST;
+ SIGCONT : constant := System.Linux.SIGCONT;
SIGSTOP : constant := System.Linux.SIGSTOP;
SIGTSTP : constant := System.Linux.SIGTSTP;
- SIGCONT : constant := System.Linux.SIGCONT;
SIGTTIN : constant := System.Linux.SIGTTIN;
SIGTTOU : constant := System.Linux.SIGTTOU;
- SIGVTALRM : constant := System.Linux.SIGVTALRM;
- SIGPROF : constant := System.Linux.SIGPROF;
+ SIGURG : constant := System.Linux.SIGURG;
SIGXCPU : constant := System.Linux.SIGXCPU;
SIGXFSZ : constant := System.Linux.SIGXFSZ;
+ SIGVTALRM : constant := System.Linux.SIGVTALRM;
+ SIGPROF : constant := System.Linux.SIGPROF;
+ SIGWINCH : constant := System.Linux.SIGWINCH;
+ SIGPOLL : constant := System.Linux.SIGPOLL;
+ SIGIO : constant := System.Linux.SIGIO;
+ SIGLOST : constant := System.Linux.SIGLOST;
+ SIGPWR : constant := System.Linux.SIGPWR;
+ SIGSYS : constant := System.Linux.SIGSYS;
SIGUNUSED : constant := System.Linux.SIGUNUSED;
- SIGSTKFLT : constant := System.Linux.SIGSTKFLT;
- SIGLTHRRES : constant := System.Linux.SIGLTHRRES;
- SIGLTHRCAN : constant := System.Linux.SIGLTHRCAN;
- SIGLTHRDBG : constant := System.Linux.SIGLTHRDBG;
+ SIG32 : constant := System.Linux.SIG32;
+ SIG33 : constant := System.Linux.SIG33;
+ SIG34 : constant := System.Linux.SIG34;
SIGADAABORT : constant := SIGABRT;
-- Change this to use another signal for task abort. SIGTERM might be a
SIGPROF,
-- To avoid confusing the profiler
- SIGKILL, SIGSTOP,
+ SIGKILL, SIGSTOP
-- These two signals actually can't be masked (POSIX won't allow it)
-
- SIGLTHRRES, SIGLTHRCAN, SIGLTHRDBG);
- -- These three signals are used by GNU/LinuxThreads starting from glibc
- -- 2.1 (future 2.2).
-
- Reserved : constant Signal_Set := (SIGVTALRM, SIGUNUSED);
- -- Not clear why these two signals are reserved. Perhaps they are not
- -- supported by this version of GNU/Linux ???
+ );
+
+ Reserved : constant Signal_Set := (
+ SIG32, SIG33, SIG34
+ -- glibc POSIX threads implementation uses two (NPTL) or three
+ -- (LinuxThreads) real-time signals for its own use (see SIGNAL(7)).
+ -- These signals are considered reserved and not unmasked as glibc does
+ -- not permit these signals to be used by the public signal.h API.
+ -- While LinuxThreads is mostly likely unused now, SIG34 is still
+ -- reserved as this behavior is consistent with past GNAT releases.
+ );
type sigset_t is private;
+2018-11-14 Patrick Bernardi <bernardi@adacore.com>
+
+ * gnat.dg/rt_signals.adb: New testcase.
+
2018-11-14 Hristian Kirtchev <kirtchev@adacore.com>
* gnat.dg/ghost1.adb, gnat.dg/ghost1.ads: New testcase.
--- /dev/null
+-- { dg-do run }
+
+-- This program used to fail with a runtime built with assertions
+
+procedure RT_Signals is
+ task Task_A;
+
+ task body Task_A is
+ begin
+ null;
+ end Task_A;
+begin
+ null;
+end RT_Signals;
projects / gcc.git / commitdiff