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-rw-r--r--sysdeps/unix/sysv/linux/alpha/brk.S4
-rw-r--r--sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S4
-rw-r--r--sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S4
-rw-r--r--sysdeps/unix/sysv/linux/alpha/llseek.S10
-rw-r--r--sysdeps/unix/sysv/linux/alpha/pipe.S16
-rw-r--r--sysdeps/unix/sysv/linux/alpha/sigsuspend.S4
-rw-r--r--sysdeps/unix/sysv/linux/alpha/start.S95
-rw-r--r--sysdeps/unix/sysv/linux/alpha/syscall.S18
-rw-r--r--sysdeps/unix/sysv/linux/alpha/sysdep.S34
-rw-r--r--sysdeps/unix/sysv/linux/alpha/sysdep.h12
10 files changed, 74 insertions, 127 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/brk.S b/sysdeps/unix/sysv/linux/alpha/brk.S
index 1c4a4f9217..26bf97f2bd 100644
--- a/sysdeps/unix/sysv/linux/alpha/brk.S
+++ b/sysdeps/unix/sysv/linux/alpha/brk.S
@@ -30,7 +30,7 @@ LEAF(__brk, 0)
ldgp gp, 0(t12)
.prologue 1
- ldi v0, __NR_brk
+ ldiq v0, __NR_brk
call_pal PAL_callsys
/* Correctly handle the brk(0) query case. */
@@ -46,7 +46,7 @@ LEAF(__brk, 0)
/* What a horrible way to die. */
error: ldi v0, ENOMEM
- jmp zero, syscall_error
+ jmp zero, __syscall_error
END(__brk)
diff --git a/sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S b/sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S
index 52c945aec2..e09fa738e2 100644
--- a/sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S
+++ b/sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S
@@ -24,7 +24,7 @@ Cambridge, MA 02139, USA. */
LEAF(__ieee_get_fp_control, 8)
lda sp, -8(sp)
- .prologue 0
+ .prologue 1
mov sp, a1
ldi a0, GSI_IEEE_FP_CONTROL
@@ -39,7 +39,7 @@ LEAF(__ieee_get_fp_control, 8)
error: lda sp, 8(sp)
br gp, 1f
1: ldgp gp, 0(gp)
- jmp zero, syscall_error
+ jmp zero, __syscall_error
END(__ieee_get_fp_control)
diff --git a/sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S b/sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S
index d72585daf1..d748c81142 100644
--- a/sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S
+++ b/sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S
@@ -22,7 +22,7 @@ Cambridge, MA 02139, USA. */
LEAF(__ieee_set_fp_control, 8)
lda sp, -8(sp)
- .prologue 0
+ .prologue 1
stq a0, 0(sp)
mov sp, a1
@@ -37,7 +37,7 @@ LEAF(__ieee_set_fp_control, 8)
error: br gp, 1f
1: ldgp gp, 0(gp)
- jmp zero, syscall_error
+ jmp zero, __syscall_error
END(__ieee_set_fp_control)
diff --git a/sysdeps/unix/sysv/linux/alpha/llseek.S b/sysdeps/unix/sysv/linux/alpha/llseek.S
index bd8c6595c9..6020f263cd 100644
--- a/sysdeps/unix/sysv/linux/alpha/llseek.S
+++ b/sysdeps/unix/sysv/linux/alpha/llseek.S
@@ -18,19 +18,17 @@ Cambridge, MA 02139, USA. */
/* For compatibility only: a "long" is 64 bits on the Alpha, so
llseek() isn't really needed. But there are some programs out
- there who may depend on it being around.
-*/
+ there who may depend on it being around. */
#include <sysdep.h>
.text
ENTRY(llseek)
- .prologue 0
-
- mov a3, t0 /* save result address */
+ .prologue 1
sll a1, 32, a1 /* build a 64 bit ofs out of 32 bit operands */
zap a2, 0xf0, a2
+ mov a3, t0 /* save result address */
bis a2, a1, a1
mov a4, a2 /* shift down whence */
@@ -44,6 +42,6 @@ ENTRY(llseek)
error: br gp, 1f
1: ldgp gp, 0(gp)
- jmp zero, syscall_error
+ jmp zero, __syscall_error
END(llseek)
diff --git a/sysdeps/unix/sysv/linux/alpha/pipe.S b/sysdeps/unix/sysv/linux/alpha/pipe.S
index b23803cecd..60334adb45 100644
--- a/sysdeps/unix/sysv/linux/alpha/pipe.S
+++ b/sysdeps/unix/sysv/linux/alpha/pipe.S
@@ -20,23 +20,11 @@ Cambridge, MA 02139, USA. */
#include <sysdep.h>
- .text
-LEAF(__pipe, 0)
- .prologue 0
-
- ldi v0, __NR_pipe
- call_pal PAL_callsys
- bne a3, error
-
+PSEUDO (__pipe, pipe, 0)
stl r0, 0(a0)
stl r1, 4(a0)
mov zero, v0
ret
-
-error: br gp, 1f
-1: ldgp gp, 0(gp)
- jmp zero, syscall_error
-
- END(__pipe)
+PSEUDO_END(__pipe)
weak_alias (__pipe, pipe)
diff --git a/sysdeps/unix/sysv/linux/alpha/sigsuspend.S b/sysdeps/unix/sysv/linux/alpha/sigsuspend.S
index 26a1869783..aaae9a308a 100644
--- a/sysdeps/unix/sysv/linux/alpha/sigsuspend.S
+++ b/sysdeps/unix/sysv/linux/alpha/sigsuspend.S
@@ -24,7 +24,7 @@ Cambridge, MA 02139, USA. */
.text
LEAF(sigsuspend, 0)
- .prologue 0
+ .prologue 1
ldq a0, 0(a0)
ldi v0, __NR_sigsuspend
@@ -34,6 +34,6 @@ LEAF(sigsuspend, 0)
error: br gp, 1f
1: ldgp gp, 0(gp)
- jmp zero, syscall_error
+ jmp zero, __syscall_error
END(sigsuspend)
diff --git a/sysdeps/unix/sysv/linux/alpha/start.S b/sysdeps/unix/sysv/linux/alpha/start.S
index a7099f6840..bffa913538 100644
--- a/sysdeps/unix/sysv/linux/alpha/start.S
+++ b/sysdeps/unix/sysv/linux/alpha/start.S
@@ -1,5 +1,5 @@
/* Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc.
- Contributed by Brendan Kehoe (brendan@zen.org).
+ Contributed by Richard Henderson <rth@tamu.edu>
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
@@ -18,81 +18,76 @@ Cambridge, MA 02139, USA. */
#include <sysdep.h>
- .comm errno, 4
-#ifdef __ELF__
- .type errno, @object
-#endif
-
.text
-LEAF(__start, 16)
- lda sp, -16(sp)
- .prologue 0
-
- stq zero, 8(sp) /* terminate frame chain */
-
- br t0, 1f
-1: ldgp gp, 0(t0)
-
- mov zero, a0 /* establish __fpu_control w/kernel */
- jsr ra, __setfpucw
+ .globl __start
+ .align 3
+ .ent __start, 0
+__start:
+ .frame fp, 0, zero
+ mov zero, fp
+ br gp, 1f
+1: ldgp gp, 0(gp)
+ .prologue 1
+
+ /* Save v0. When starting a binary via the dynamic linker, s0
+ contains the address of the shared library termination function,
+ which we will register below with atexit() to be called by exit().
+ If we are statically linked, this will be NULL. */
+ mov v0, s0
+
+ /* Do essential libc initialization (sp points to argc, argv, and envp) */
+ jsr ra, __libc_init_first
ldgp gp, 0(ra)
- /* clear out errno. */
- stl zero, (errno)
+ /* Now that we have the proper stack frame, register library termination
+ function, if there is any: */
- ldl a0, 16(sp) /* get argc */
- lda a1, 24(sp) /* get argv */
+ beq s0, 1f
+ mov s0, a0
+ jsr ra, atexit
+ ldgp gp, 0(ra)
+1:
- /* initialize environ: */
- lda t0, environ
- s8addq a0, a1, a2
- addq a2, 0x8, a2
- stq a2, 0(t0)
+ /* Extract the arguments and environment as encoded on the stack. */
+ ldl a0, 0(sp) /* get argc */
+ lda a1, 8(sp) /* get argv */
+ s8addq a0, a1, a2 /* get envp */
+ addq a2, 8, a2
+ stq a2, _environ
- mov a0, s0
+ mov a0, s0 /* tuck them away */
mov a1, s1
mov a2, s2
#ifdef HAVE_INITFINI
- /* register the _fini sections to ensure destructors get run: */
- lda a0, _fini
- jsr ra, atexit
- ldgp gp, 0(ra)
-
- /* Now run the _init section of the program itself. The _init
- sections of shared libraries will be run by the dynamic linker. */
+ /* Call _init, the entry point to our own .init section. */
jsr ra, _init
ldgp gp, 0(ra)
- /* initialize constructors: */
- jsr ra, __main
+ /* Register our .fini section with atexit. */
+ lda a0, _fini
+ jsr ra, atexit
ldgp gp, 0(ra)
#else
- jsr ra, __libc_init
+ /* initialize constructors: */
+ jsr ra, __main
ldgp gp, 0(ra)
#endif
-
mov s0, a0
mov s1, a1
mov s2, a2
+ /* Call the user's main and exit with its return value. */
jsr ra, main
ldgp gp, 0(ra)
mov v0, a0
+ jsr ra, exit
- lda pv, exit
- jsr ra, (pv), 1
- ldgp gp, 0(ra)
-
- /* in case exit returns: */
-
-1: ldi v0, __NR_exit
- call_pal PAL_callsys
- br 1b
-
- .end __start
-
+ /* Die very horribly if exit returns. Call_pal hlt is callable from
+ kernel mode only; this will result in an illegal instruction trap. */
+ call_pal 0
+END(__start)
/* Define a symbol for the first piece of initialized data. */
.data
diff --git a/sysdeps/unix/sysv/linux/alpha/syscall.S b/sysdeps/unix/sysv/linux/alpha/syscall.S
index c80a523239..f1b36e9312 100644
--- a/sysdeps/unix/sysv/linux/alpha/syscall.S
+++ b/sysdeps/unix/sysv/linux/alpha/syscall.S
@@ -42,19 +42,19 @@ Cambridge, MA 02139, USA. */
LEAF(__syscall, 0)
- bis a0, a0, v0 # Syscall number -> v0
- bis a1, a1, a0 # arg1-arg5 -> a0-a4
- bis a2, a2, a1
- bis a3, a3, a2
- bis a4, a4, a3
- bis a5, a5, a4
-
- call_pal PAL_callsys # Invoke system call
+ mov a0, v0 /* Syscall number -> v0 */
+ mov a1, a0 /* arg1-arg5 -> a0-a4 */
+ mov a2, a1
+ mov a3, a2
+ mov a4, a3
+ mov a5, a4
+
+ call_pal PAL_callsys /* Invoke system call */
bne a3, error
ret
error: br gp, 2f
2: ldgp gp, 0(gp)
- jmp zero, syscall_error
+ jmp zero, __syscall_error
weak_alias(__syscall, syscall)
diff --git a/sysdeps/unix/sysv/linux/alpha/sysdep.S b/sysdeps/unix/sysv/linux/alpha/sysdep.S
deleted file mode 100644
index 84582f404e..0000000000
--- a/sysdeps/unix/sysv/linux/alpha/sysdep.S
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Copyright (C) 1993 Free Software Foundation, Inc.
- Contributed by Brendan Kehoe (brendan@zen.org).
-
-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., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
-
-#include <sysdep.h>
-#define _ERRNO_H
-#include <errnos.h>
-
-LEAF(syscall_error, 0)
- .prologue 1
-
- /* Store return value in errno... */
- ldgp gp, 0(t12)
- stl v0, errno
-
- /* And just kick back a -1. */
- ldi v0, -1
- ret
-
- .end syscall_error
diff --git a/sysdeps/unix/sysv/linux/alpha/sysdep.h b/sysdeps/unix/sysv/linux/alpha/sysdep.h
index 627b37e4fb..8f5f5dde61 100644
--- a/sysdeps/unix/sysv/linux/alpha/sysdep.h
+++ b/sysdeps/unix/sysv/linux/alpha/sysdep.h
@@ -38,15 +38,15 @@ Cambridge, MA 02139, USA. */
# define SYS_ify(syscall_name) __NR_/**/syscall_name
#endif
-/*
- * Define some aliases for syscalls that return two values (in r0 and r1):
- */
+/* Define some aliases to make automatic syscall generation work
+ properly. The SYS_* variants are for the benefit of the files in
+ sysdeps/unix. */
#define __NR_getpid __NR_getxpid
-#define __NR_getppid __NR_getxpid
#define __NR_getuid __NR_getxuid
-#define __NR_geteuid __NR_getxuid
#define __NR_getgid __NR_getxgid
-#define __NR_getegid __NR_getxgid
+#define SYS_getpid __NR_getxpid
+#define SYS_getuid __NR_getxuid
+#define SYS_getgid __NR_getxgid
/*
* Some syscalls no Linux program should know about: