aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/sparc
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc')
-rw-r--r--sysdeps/unix/sysv/linux/sparc/Dist2
-rw-r--r--sysdeps/unix/sysv/linux/sparc/Makefile3
-rw-r--r--sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S142
-rw-r--r--sysdeps/unix/sysv/linux/sparc/brk.c56
-rw-r--r--sysdeps/unix/sysv/linux/sparc/profil-counter.h35
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sigaction.c127
-rw-r--r--sysdeps/unix/sysv/linux/sparc/socket.S58
-rw-r--r--sysdeps/unix/sysv/linux/sparc/syscall.S30
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sysdep.h57
9 files changed, 510 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/Dist b/sysdeps/unix/sysv/linux/sparc/Dist
new file mode 100644
index 0000000000..6134c6056d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/Dist
@@ -0,0 +1,2 @@
+__sigtrampoline.S
+clone.S
diff --git a/sysdeps/unix/sysv/linux/sparc/Makefile b/sysdeps/unix/sysv/linux/sparc/Makefile
new file mode 100644
index 0000000000..629e6b37df
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),signal)
+sysdep_routines += __sigtrampoline
+endif
diff --git a/sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S b/sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S
new file mode 100644
index 0000000000..d0fe760270
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S
@@ -0,0 +1,142 @@
+/* Userland trampoline code for sigaction on Linux/SPARC */
+/* (C) 1996, 1997 Free Software Foundation, Inc. */
+/* This file is part of the GNU C Library. */
+/* Contributed by Miguel de Icaza (miguel@gnu.ai.mit.edu) */
+/* Many thanks go to David Miller for explaining all this to me */
+/* miguel@nuclecu.unam.mx */
+/* Sources: David Miller, 4.4BSD/SPARC code */
+
+#include <sysdep.h>
+
+/* For REGWIN_SZ */
+#include <asm/ptrace.h>
+#include <asm/psr.h>
+
+/* The C compiler frame size */
+#define CCFSZ 96
+
+ .text
+
+ENTRY(____sparc_signal_trampoline)
+ .global SYMBOL_NAME(____sig_table)
+
+ /* Make room for 32 %f registers + %fsr
+ * this is 132 bytes + alignement = 136
+ * 96 is the C frame size
+ */
+ save %sp,-136-CCFSZ,%sp
+
+ /* save regular registers */
+ mov %g2,%l2
+ mov %g3,%l3
+ mov %g4,%l4
+ mov %g5,%l5
+ mov %g6,%l6
+ mov %g7,%l7
+
+ /* save fpu registers */
+ ld [%fp+64+16+20],%l0 /* load the psr from sigcontext */
+ sethi %hi(PSR_EF),%l1
+ andcc %l0,%l1,%l0 /* is floating point enabled? */
+ be 1f
+ rd %y,%l1 /* save y anyways */
+
+ /* save fpu registers */
+ st %fsr, [%sp + CCFSZ + 0]
+ std %f0, [%sp + CCFSZ + 8]
+ std %f2, [%sp + CCFSZ + 16]
+ std %f4, [%sp + CCFSZ + 24]
+ std %f6, [%sp + CCFSZ + 32]
+ std %f8, [%sp + CCFSZ + 40]
+ std %f10, [%sp + CCFSZ + 48]
+ std %f12, [%sp + CCFSZ + 56]
+ std %f14, [%sp + CCFSZ + 64]
+ std %f16, [%sp + CCFSZ + 72]
+ std %f18, [%sp + CCFSZ + 80]
+ std %f20, [%sp + CCFSZ + 88]
+ std %f22, [%sp + CCFSZ + 96]
+ std %f24, [%sp + CCFSZ + 104]
+ std %f26, [%sp + CCFSZ + 112]
+ std %f28, [%sp + CCFSZ + 120]
+ std %f30, [%sp + CCFSZ + 128]
+
+1:
+ /* Load signal number */
+ ld [%fp + REGWIN_SZ],%o0
+ mov %fp,%o1
+ mov 0xfea,%o2
+
+ /* Sanity check */
+ cmp %o0,33
+ bl 1f
+ or %g0,%g0,%g1 /*Call sys_setup */
+ t 0x10
+1:
+#ifdef __PIC__
+ /* Save return address */
+ mov %o7,%o4
+___sxx:
+ call ___syy
+ nop
+___syy:
+ sethi %hi(_GLOBAL_OFFSET_TABLE_-(___sxx-.)),%o5
+ or %o5,%lo(_GLOBAL_OFFSET_TABLE_-(___sxx-.)),%o5
+ add %o7,%o5,%o5
+ /* restore return address */
+ mov %o4,%o7
+ mov %o5,%o4
+ /* o4 has the GOT pointer */
+#endif
+ sethi %hi(SYMBOL_NAME(____sig_table)),%o5
+ or %o5,%lo(SYMBOL_NAME(____sig_table)),%o5
+#ifdef __PIC__
+ add %o5,%o4,%o4
+ ld [%o4],%o5
+#endif
+ sll %o0,2,%o4
+ add %o5,%o4,%o4
+ ld [%o4],%o4
+ ld [%fp + REGWIN_SZ + 4],%o1 /* Load subcode */
+ ld [%fp + REGWIN_SZ + 8],%o2 /* pointer to sigcontext */
+ call %o4
+ ld [%fp + REGWIN_SZ + 12],%o3 /* Address where signal ocurred */
+
+ /* handler returned, restore state */
+ tst %l0
+ be 1f
+ wr %l1,%g0,%y
+
+ /* fpu restoration */
+ ld [%sp + CCFSZ + 0], %fsr
+ ldd [%sp + CCFSZ + 8], %f0
+ ldd [%sp + CCFSZ + 16], %f2
+ ldd [%sp + CCFSZ + 24], %f4
+ ldd [%sp + CCFSZ + 32], %f6
+ ldd [%sp + CCFSZ + 40], %f8
+ ldd [%sp + CCFSZ + 48], %f10
+ ldd [%sp + CCFSZ + 56], %f12
+ ldd [%sp + CCFSZ + 64], %f14
+ ldd [%sp + CCFSZ + 72], %f16
+ ldd [%sp + CCFSZ + 80], %f18
+ ldd [%sp + CCFSZ + 88], %f20
+ ldd [%sp + CCFSZ + 96], %f22
+ ldd [%sp + CCFSZ + 104], %f24
+ ldd [%sp + CCFSZ + 112], %f26
+ ldd [%sp + CCFSZ + 120], %f28
+ ldd [%sp + CCFSZ + 128], %f30
+
+1:
+ mov %l2,%g2
+ mov %l3,%g3
+ mov %l4,%g4
+ mov %l5,%g5
+ mov %l6,%g6
+ mov %l7,%g7
+
+ /* call sigreturn */
+ restore %g0,SYS_sigreturn,%g1 /* register back and set syscall */
+ add %sp,64+16,%o0
+ t 0x10
+ /* if we return, sysreturn failed */
+ mov SYS_exit,%g1
+ t 0x10
diff --git a/sysdeps/unix/sysv/linux/sparc/brk.c b/sysdeps/unix/sysv/linux/sparc/brk.c
new file mode 100644
index 0000000000..13bcb0459b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/brk.c
@@ -0,0 +1,56 @@
+/* brk system call for Linux/SPARC.
+ Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx)
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sysdep.h>
+
+/* This must be initialized data because commons can't have aliases. */
+void *__curbrk = 0;
+
+/* Old braindamage in GCC's crtstuff.c requires this symbol in an attempt
+ to work around different old braindamage in the old Linux ELF dynamic
+ linker. */
+weak_alias (__curbrk, ___brk_addr)
+
+int
+__brk (void *addr)
+{
+ void *newbrk, *scratch;
+
+ asm ("mov %1, %%g1\n\t"
+ "mov %2, %%o0\n\t"
+ "t 0x10\n\t"
+ "mov %%o0, %0\n\t"
+ : "=r" (newbrk)
+ : "0" (SYS_brk), "r" (addr)
+ : "g1", "o0");
+
+ __curbrk = newbrk;
+
+ if (newbrk < addr)
+ {
+ __set_errno (ENOMEM);
+ return -1;
+ }
+
+ return 0;
+}
+weak_alias (__brk, brk)
diff --git a/sysdeps/unix/sysv/linux/sparc/profil-counter.h b/sysdeps/unix/sysv/linux/sparc/profil-counter.h
new file mode 100644
index 0000000000..1998c34ed5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/profil-counter.h
@@ -0,0 +1,35 @@
+/* Low-level statistical profiling support function. Linux/SPARC version.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <sigcontext.h>
+
+void
+profil_counter (int signo, __siginfo_t si)
+{
+ extern int __sparc_old_signals;
+
+ if (__sparc_old_signals)
+ {
+ struct sigcontext_struct *s = (void *) &si;
+
+ profil_count ((void *) s->sigc_pc);
+ }
+ else
+ profil_count ((void *) si.si_regs.pc);
+}
diff --git a/sysdeps/unix/sysv/linux/sparc/sigaction.c b/sysdeps/unix/sysv/linux/sparc/sigaction.c
new file mode 100644
index 0000000000..e7bda77de2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sigaction.c
@@ -0,0 +1,127 @@
+/* POSIX.1 sigaction call for Linux/SPARC.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx), 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <syscall.h>
+#include <sys/signal.h>
+#include <errno.h>
+
+/* The kernel will deliver signals in the old way if the signal
+ number is a positive number. The kernel will deliver a signal
+ with the new stack layout if the signal number is a negative number.
+
+ Our sigaction code takes care of selecting the type of kernel we are
+ using at runtime. */
+
+extern void ____sparc_signal_trampoline (int);
+long ____sig_table [NSIG];
+
+int
+__trampoline_sigaction (int sig, struct sigaction *new, struct sigaction *old)
+{
+ int ret;
+ int need_to_hide_trick = 0;
+ __sighandler_t old_sh;
+
+ if (new)
+ {
+ if (new->sa_handler != SIG_DFL && new->sa_handler != SIG_IGN)
+ {
+ old_sh = ____sig_table[sig];
+ ____sig_table[sig] = (long int) new->sa_handler;
+ new->sa_handler = ____sparc_signal_trampoline;
+ need_to_hide_trick = 1;
+ }
+ }
+ __asm__("or %%g0,%0,%%g1\n\t"
+ "or %%g0,%1,%%o0\n\t"
+ "or %%g0,%2,%%o1\n\t"
+ "or %%g0,%3,%%o2\n\t"
+ "t 0x10\n\t"
+ "bcc 1f\n\t"
+ "or %%o0, %%g0, %0\n\t"
+ "sub %%g0, %%o0, %0\n\t"
+ "1:"
+ : "=r" (ret), "=r" ((long int) sig), "=r" ((long int) new),
+ "=r" ((long int) old)
+ : "0" (SYS_sigaction), "1" (sig), "2" (new), "3" (old)
+ : "g1", "o0", "o1", "o2");
+
+ if (ret >= 0)
+ {
+ if (old && old->sa_handler == ____sparc_signal_trampoline)
+ {
+ if (need_to_hide_trick)
+ old->sa_handler = old_sh;
+ else
+ old->sa_handler = ____sig_table[sig];
+ }
+ if (need_to_hide_trick)
+ new->sa_handler = ____sig_table[sig];
+ return 0;
+ }
+ __set_errno (-ret);
+ return -1;
+}
+
+int
+__new_sigaction (int sig, struct sigaction *new, struct sigaction *old)
+{
+ int ret;
+
+ sig = -sig;
+
+ __asm__("or %%g0,%0,%%g1\n\t"
+ "or %%g0,%1,%%o0\n\t"
+ "or %%g0,%2,%%o1\n\t"
+ "or %%g0,%3,%%o2\n\t"
+ "t 0x10\n\t"
+ "bcc 1f\n\t"
+ "or %%o0, %%g0, %0\n\t"
+ "sub %%g0,%%o0,%0\n\t"
+ "1:"
+ : "=r" (ret), "=r" ((long int) sig), "=r" ((long int) new),
+ "=r" ((long int) old)
+ : "0" (SYS_sigaction), "1" (sig), "2" (new), "3" (old)
+ : "g1", "o0", "o1", "o2");
+ if (ret >= 0)
+ return 0;
+ __set_errno (-ret);
+ return -1;
+}
+
+int
+__sigaction (int sig, struct sigaction *new, struct sigaction *old)
+{
+ static (*sigact_routine) (int, struct sigaction *, struct sigaction *);
+ int ret;
+ struct sigaction sa;
+
+ if (sigact_routine)
+ return (*sigact_routine) (sig, new, old);
+
+ ret = __new_sigaction (1, NULL, &sa);
+ if (ret == -1)
+ sigact_routine = __trampoline_sigaction;
+ else
+ sigact_routine = __new_sigaction;
+
+ return __sigaction (sig, new, old);
+}
+weak_alias (__sigaction, sigaction);
diff --git a/sysdeps/unix/sysv/linux/sparc/socket.S b/sysdeps/unix/sysv/linux/sparc/socket.S
new file mode 100644
index 0000000000..f8075201db
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/socket.S
@@ -0,0 +1,58 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <sysdep.h>
+#include <sys/socketcall.h>
+
+#define P(a, b) P2(a, b)
+#define P2(a, b) a##b
+
+ .text
+/* The socket-oriented system calls are handled unusally in Linux.
+ They are all gated through the single `socketcall' system call number.
+ `socketcall' takes two arguments: the first is the subcode, specifying
+ which socket function is being called; and the second is a pointer to
+ the arguments to the specific function.
+
+ The .S files for the other calls just #define socket and #include this. */
+
+.globl P(__,socket)
+ENTRY (P(__,socket))
+ mov SYS_ify(socketcall), %g1 /* System call number */
+
+ /* Use ## so `socket' is a separate token that might be #define'd. */
+ mov P(SOCKOP_,socket), %o0 /* Subcode is first arg to syscall. */
+ mov %i0,%o1 /* args pointer is second arg to syscall */
+
+ t 0x10
+ bcc,a 1
+ nop
+ save %sp,96,%sp
+ call __errno_location
+ nop
+ st %i0,[%o0]
+ restore
+ retl
+ mov -1,%o0
+1:
+ ret
+
+PSEUDO_END (P(__,socket))
+
+weak_alias (P(__,socket), socket)
diff --git a/sysdeps/unix/sysv/linux/sparc/syscall.S b/sysdeps/unix/sysv/linux/sparc/syscall.S
new file mode 100644
index 0000000000..4166e4231b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/syscall.S
@@ -0,0 +1,30 @@
+/* Copyright (C) 1991, 1992, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#define DONT_LOAD_G1
+#include <sysdep.h>
+ENTRY (__libc_syscall)
+ or %o0,%g0,%g1
+ or %o1,%g0,%o0
+ or %o2,%g0,%o1
+ or %o3,%g0,%o2
+ or %o4,%g0,%o3
+ or %o5,%g0,%o4
+PSEUDO_NOENT(__libc_syscall, syscall, 5)
+ ret
+SYSCALL__POST(syscall,5)
diff --git a/sysdeps/unix/sysv/linux/sparc/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sysdep.h
new file mode 100644
index 0000000000..0251a1f014
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sysdep.h
@@ -0,0 +1,57 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, January 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _LINUX_SPARC_SYSDEP_H
+#define _LINUX_SPARC_SYSDEP_H 1
+
+#include <sysdeps/unix/sparc/sysdep.h>
+
+#undef SYS_ify
+#define SYS_ify(syscall_name) __NR_##syscall_name
+
+#ifdef ASSEMBLER
+
+#ifdef DONT_LOAD_G1
+# define LOADSYSCALL(x)
+#else
+# define LOADSYSCALL(x) mov SYS_##n, %g1
+#endif
+
+/* Linux/SPARC uses a different trap number and uses __errno_location always */
+#undef PSEUDO
+
+#define PSEUDO(name, syscall_name, args) \
+ .text; \
+ ENTRY(name); \
+ LOADSYSCALL(syscall_name); \
+ ta 0x10; \
+ bcc,a 1f; \
+ nop; \
+ save %sp,96,%sp; \
+ call __errno_location; \
+ nop; \
+ st %i0,[%o0]; \
+ restore; \
+ retl; \
+ mov -1,%o0; \
+1:
+
+#endif /* ASSEMBLER */
+
+#endif /* linux/sparc/sysdep.h */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 15:56:25 +0000