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Update.
1999-08-02 Jakub Jelinek <jj@ultra.linux.cz> * sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c (__sigaction): Only allow rt signal frames. No SA_SIGINFO signals will have the siginfo_t just not filled out with SI_NOINFO code. * sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h (register_dump): Take the above change into account. * sysdeps/unix/sysv/linux/sparc/sparc64/sigcontextinfo.h (rt_signal_frame): Likewise. * sysdeps/unix/sysv/linux/sparc/getsysstats.c: New file.
This commit is contained in:
Ulrich Drepper
parent
249fd241a2
commit
7b19af6891
12
ChangeLog
12
ChangeLog
@ -1,3 +1,15 @@
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1999-08-02 Jakub Jelinek <jj@ultra.linux.cz>
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* sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c (__sigaction):
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Only allow rt signal frames. No SA_SIGINFO signals will have the
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siginfo_t just not filled out with SI_NOINFO code.
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* sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h
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(register_dump): Take the above change into account.
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* sysdeps/unix/sysv/linux/sparc/sparc64/sigcontextinfo.h
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(rt_signal_frame): Likewise.
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* sysdeps/unix/sysv/linux/sparc/getsysstats.c: New file.
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1999-08-02 Thorsten Kukuk <kukuk@suse.de>
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* nis/nis_callback.c (internal_nis_do_callback) use poll()
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8
FAQ.in
8
FAQ.in
@ -848,14 +848,12 @@ files. You don't necessarily need to recompile the GNU C library since the
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only place where OPEN_MAX and FD_SETSIZE is really needed in the library
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itself is the size of fd_set which is used by select.
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The GNU C library is now (nearly) select free. This means it internally has
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no limits imposed by the `fd_set' type. Instead almost all places where the
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The GNU C library is now select free. This means it internally has no
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limits imposed by the `fd_set' type. Instead all places where the
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functionality is needed the `poll' function is used.
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If you increase the number of file descriptors in the kernel you don't need
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to recompile the C library. The remaining select calls are in the RPC code.
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If your RPC daemons don't need more than FD_SETSIZE file descriptors, you
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don't need to change anything at all.
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to recompile the C library.
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{UD} You can always get the maximum number of file descriptors a process is
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allowed to have open at any time using
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55
sysdeps/unix/sysv/linux/sparc/getsysstats.c
Normal file
55
sysdeps/unix/sysv/linux/sparc/getsysstats.c
Normal file
@ -0,0 +1,55 @@
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/* Determine various system internal values, Linux/Sparc version.
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Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andreas Schwab <schwab@suse.de> and
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Jakub Jelinek <jj@ultra.linux.cz>
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* We need to define a special parser for /proc/cpuinfo. */
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#define GET_NPROCS_PARSER(FP, BUFFER, RESULT) \
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do \
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{ \
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(RESULT) = 0; \
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/* Find the line that contains the information about the number of \
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active cpus. We don't have to fear extremely long lines since \
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the kernel will not generate them. 8192 bytes are really \
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enough. */ \
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while (fgets_unlocked (BUFFER, sizeof (BUFFER), FP) != NULL) \
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if (sscanf (BUFFER, "ncpus active : %d", &(RESULT)) == 1) \
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break; \
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} \
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while (0)
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/* On the Sparc we can distinguish between the number of configured and
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active cpus. */
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#define GET_NPROCS_CONF_PARSER(FP, BUFFER, RESULT) \
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do \
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{ \
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(RESULT) = 0; \
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/* Find the line that contains the information about the number of \
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probed cpus. We don't have to fear extremely long lines since \
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the kernel will not generate them. 8192 bytes are really \
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enough. */ \
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while (fgets_unlocked ((BUFFER), sizeof (BUFFER), (FP)) != NULL) \
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if (sscanf (buffer, "ncpus probed : %d", &(RESULT)) == 1) \
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break; \
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} \
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while (0)
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#include <sysdeps/unix/sysv/linux/getsysstats.c>
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@ -39,7 +39,7 @@
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i3: XXXXXXXXXXXXXXXX i4: XXXXXXXXXXXXXXXX i5: XXXXXXXXXXXXXXXX
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fp: XXXXXXXXXXXXXXXX i7: XXXXXXXXXXXXXXXX
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Old mask: XXXXXXXX XFSR: XXXXXXXXXXXXXXXX GSR: XX FPRS: X
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Mask: XXXXXXXXXXXXXXXX XFSR: XXXXXXXXXXXXXXXX GSR: XX FPRS: X
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f0: XXXXXXXXXXXXXXXX f2: XXXXXXXXXXXXXXXX f4: XXXXXXXXXXXXXXXX
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f6: XXXXXXXXXXXXXXXX f8: XXXXXXXXXXXXXXXX f10: XXXXXXXXXXXXXXXX
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f12: XXXXXXXXXXXXXXXX f14: XXXXXXXXXXXXXXXX f16: XXXXXXXXXXXXXXXX
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@ -79,7 +79,7 @@ register_dump (int fd, SIGCONTEXT ctx)
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size_t nr = 0;
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int i;
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struct reg_window *r = (struct reg_window *)
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ctx->si_regs.u_regs[14];
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ctx->sf_regs.u_regs[14];
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struct __siginfo_sparc64_fpu *f;
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#define ADD_STRING(str) \
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@ -92,15 +92,15 @@ register_dump (int fd, SIGCONTEXT ctx)
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++nr
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/* Generate strings of register contents. */
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hexvalue (ctx->si_regs.tstate, regs[0], 16);
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hexvalue (ctx->si_regs.tpc, regs[1], 16);
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hexvalue (ctx->si_regs.tnpc, regs[2], 16);
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hexvalue (ctx->si_regs.y, regs[3], 8);
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hexvalue (ctx->sf_regs.tstate, regs[0], 16);
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hexvalue (ctx->sf_regs.tpc, regs[1], 16);
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hexvalue (ctx->sf_regs.tnpc, regs[2], 16);
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hexvalue (ctx->sf_regs.y, regs[3], 8);
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for (i = 1; i <= 15; i++)
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hexvalue (ctx->si_regs.u_regs[i], regs[3+i], 16);
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hexvalue (ctx->sf_regs.u_regs[i], regs[3+i], 16);
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for (i = 0; i <= 15; i++)
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hexvalue (r->locals[i], regs[19+i], 16);
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hexvalue (ctx->si_mask, regs[35], 8);
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hexvalue (ctx->sf_mask, regs[35], 16);
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/* Generate the output. */
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ADD_STRING ("Register dump:\n\n TSTATE: ");
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@ -173,8 +173,8 @@ register_dump (int fd, SIGCONTEXT ctx)
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ADD_MEM (regs[33], 16);
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ADD_STRING (" i7: ");
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ADD_MEM (regs[34], 16);
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ADD_STRING ("\n\n Old mask: ");
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ADD_MEM (regs[35], 8);
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ADD_STRING ("\n\n Mask: ");
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ADD_MEM (regs[35], 16);
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f = *(struct __siginfo_sparc64_fpu **)(ctx + 1);
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if (f != NULL)
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@ -32,24 +32,18 @@ extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *,
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size_t);
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static void __rt_sigreturn_stub (void);
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static void __sigreturn_stub (void);
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int
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__sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
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{
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int ret;
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struct kernel_sigaction kact, koact;
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unsigned long stub = 0;
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unsigned long stub = ((unsigned long) &__rt_sigreturn_stub) - 8;
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if (act)
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{
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kact.k_sa_handler = act->sa_handler;
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memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t));
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if (((kact.sa_flags = act->sa_flags) & SA_SIGINFO) != 0)
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stub = (unsigned long) &__rt_sigreturn_stub;
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else
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stub = (unsigned long) &__sigreturn_stub;
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stub -= 8;
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kact.sa_restorer = NULL;
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}
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@ -79,12 +73,3 @@ __rt_sigreturn_stub (void)
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: /* no outputs */
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: "i" (__NR_rt_sigreturn));
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}
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static void
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__sigreturn_stub (void)
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{
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__asm__ ("mov %0, %%g1\n\t"
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"ta 0x6d\n\t"
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: /* no outputs */
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: "i" (__NR_sigreturn));
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}
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@ -17,13 +17,25 @@
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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struct __rt_signal_frame {
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siginfo_t sf_info;
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struct pt_regs sf_regs;
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__siginfo_fpu_t *fpu_save;
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struct {
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void *ss_sp;
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int ss_flags;
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size_t ss_size;
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} sf_stack;
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unsigned long sf_mask;
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};
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#ifndef STACK_BIAS
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#define STACK_BIAS 2047
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#endif
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#define SIGCONTEXT __siginfo_t *
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#define GET_PC(__ctx) ((void *) ((__ctx)->si_regs.tpc))
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#define SIGCONTEXT struct __rt_signal_frame *
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#define GET_PC(__ctx) ((void *) ((__ctx)->sf_regs.tpc))
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#define ADVANCE_STACK_FRAME(__next) \
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((void *) &((struct reg_window *) (((unsigned long int) (__next)) \
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+ STACK_BIAS))->ins[6])
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#define GET_STACK(__ctx) ((void *) ((__ctx)->si_regs.u_regs[14]))
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#define GET_STACK(__ctx) ((void *) ((__ctx)->sf_regs.u_regs[14]))
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#define GET_FRAME(__ctx) ADVANCE_STACK_FRAME (GET_STACK (__ctx))
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