diff options
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/alpha/dl-machine.h | 13 | ||||
-rw-r--r-- | sysdeps/alpha/elf/start.S | 19 | ||||
-rw-r--r-- | sysdeps/m68k/fpu/k_cos.c | 12 | ||||
-rw-r--r-- | sysdeps/m68k/fpu/k_sin.c | 16 | ||||
-rw-r--r-- | sysdeps/m68k/fpu/k_tan.c | 16 | ||||
-rw-r--r-- | sysdeps/mach/hurd/send.c | 8 | ||||
-rw-r--r-- | sysdeps/mach/hurd/sendto.c | 13 | ||||
-rw-r--r-- | sysdeps/posix/profil.c | 9 | ||||
-rw-r--r-- | sysdeps/stub/ustat.c | 2 | ||||
-rw-r--r-- | sysdeps/unix/Makefile | 8 | ||||
-rw-r--r-- | sysdeps/unix/alpha/sysdep.S | 3 | ||||
-rw-r--r-- | sysdeps/unix/make-syscalls.sh | 15 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/Dist | 3 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/Makefile | 2 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/init-first.h | 39 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/ioperm.c | 47 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/sys/io.h | 59 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/Dist | 2 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/init-first.h | 38 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/mmap.S | 8 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/init-first.c | 30 |
21 files changed, 240 insertions, 122 deletions
diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h index 3704c25..415549d 100644 --- a/sysdeps/alpha/dl-machine.h +++ b/sysdeps/alpha/dl-machine.h @@ -186,13 +186,17 @@ _dl_runtime_resolve: #define RTLD_START asm ("\ .text .globl _start - .globl _dl_start_user + .ent _start _start: - br $gp,0f + br $gp, 0f 0: ldgp $gp, 0($gp) /* Pass pointer to argument block to _dl_start. */ mov $sp, $16 bsr $26, _dl_start..ng + .end _start + /* FALLTHRU */ + .globl _dl_start_user + .ent _dl_start_user _dl_start_user: /* Save the user entry point address in s0. */ mov $0, $9 @@ -225,7 +229,8 @@ _dl_start_user: lda $0, _dl_fini /* Jump to the user's entry point. */ mov $9, $27 - jmp ($9)"); + jmp ($9) + .end _dl_start_user"); /* Nonzero iff TYPE describes relocation of a PLT entry, so PLT entries should not be allowed to define the value. */ @@ -377,8 +382,6 @@ elf_machine_rela (struct link_map *map, sym_value += reloc->r_addend; *reloc_addr = sym_value; } - else if (r_info == R_ALPHA_COPY) - memcpy (reloc_addr, (void *) sym_value, sym->st_size); else assert (! "unexpected dynamic reloc type"); } diff --git a/sysdeps/alpha/elf/start.S b/sysdeps/alpha/elf/start.S index 596cea6..d20a009 100644 --- a/sysdeps/alpha/elf/start.S +++ b/sysdeps/alpha/elf/start.S @@ -20,12 +20,9 @@ Cambridge, MA 02139, USA. */ #include <sysdep.h> .text - .globl _start /* what ELF wants */ - .globl __start /* for backwards (ECOFF) comatibility */ .align 3 - .ent __start, 0 + .ent _start, 0 _start: -__start: .frame fp, 0, zero mov zero, fp br gp, 1f @@ -62,7 +59,6 @@ __start: mov a1, s1 mov a2, s2 -#ifdef HAVE_INITFINI /* Call _init, the entry point to our own .init section. */ jsr ra, _init ldgp gp, 0(ra) @@ -71,16 +67,12 @@ __start: lda a0, _fini jsr ra, atexit ldgp gp, 0(ra) -#else - /* initialize constructors: */ - jsr ra, __main - ldgp gp, 0(ra) -#endif + + /* Call the user's main and exit with its return value. */ 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) @@ -90,7 +82,10 @@ __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) + .end _start + +/* For ECOFF backwards compatibility. */ +weak_alias(_start, __start) /* Define a symbol for the first piece of initialized data. */ .data diff --git a/sysdeps/m68k/fpu/k_cos.c b/sysdeps/m68k/fpu/k_cos.c index 28406e8..61f566f 100644 --- a/sysdeps/m68k/fpu/k_cos.c +++ b/sysdeps/m68k/fpu/k_cos.c @@ -16,7 +16,6 @@ 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 <ansidecl.h> #include <math.h> #ifndef FUNC @@ -29,7 +28,14 @@ Cambridge, MA 02139, USA. */ #define __CONCATX(a,b) __CONCAT(a,b) float_type -DEFUN(__CONCATX(__kernel_,FUNC), (x, y), float_type x AND float_type y) +__CONCATX(__kernel_,FUNC) (x, y) + float_type x; + float_type y; { - return __CONCATX(__,FUNC) (x + y); + float_type sin_x, cos_x, sin_y, cos_y; + __asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_x), "=f" (sin_x) + : "f" (x)); + __asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_y), "=f" (sin_y) + : "f" (y)); + return cos_x * cos_y - sin_x * sin_y; } diff --git a/sysdeps/m68k/fpu/k_sin.c b/sysdeps/m68k/fpu/k_sin.c index 8c6dfef..3eed1d4 100644 --- a/sysdeps/m68k/fpu/k_sin.c +++ b/sysdeps/m68k/fpu/k_sin.c @@ -16,7 +16,6 @@ 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 <ansidecl.h> #include <math.h> #ifndef FUNC @@ -29,8 +28,17 @@ Cambridge, MA 02139, USA. */ #define __CONCATX(a,b) __CONCAT(a,b) float_type -DEFUN(__CONCATX(__kernel_,FUNC), (x, y, iy), - float_type x AND float_type y AND int iy) +__CONCATX(__kernel_,FUNC) (x, y, iy) + float_type x; + float_type y; + int iy; { - return __CONCATX(__,FUNC) (x + y); + float_type sin_x, cos_x, sin_y, cos_y; + if (iy == 0) + return __m81_u_(__CONCATX(__,FUNC)) (x); + __asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_x), "=f" (sin_x) + : "f" (x)); + __asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_y), "=f" (sin_y) + : "f" (y)); + return sin_x * cos_y + cos_x * sin_y; } diff --git a/sysdeps/m68k/fpu/k_tan.c b/sysdeps/m68k/fpu/k_tan.c index c8fa9b7..7f1b729 100644 --- a/sysdeps/m68k/fpu/k_tan.c +++ b/sysdeps/m68k/fpu/k_tan.c @@ -16,7 +16,6 @@ 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 <ansidecl.h> #include <math.h> #ifndef FUNC @@ -29,11 +28,16 @@ Cambridge, MA 02139, USA. */ #define __CONCATX(a,b) __CONCAT(a,b) float_type -DEFUN(__CONCATX(__kernel_,FUNC), (x, y, iy), - float_type x AND float_type y AND int iy) +__CONCATX(__kernel_,FUNC) (x, y, iy) + float_type x; + float_type y; + int iy; { - if (iy == 1) - return __CONCATX(__,FUNC) (x + y); + float_type tan_x, tan_y; + tan_x = __m81_u_(__CONCATX(__,FUNC)) (x); + tan_y = __m81_u_(__CONCATX(__,FUNC)) (y); + if (iy > 0) + return (tan_x + tan_y) / (1 - tan_x * tan_y); else - return ((float_type) -1.0) / __CONCATX(__,FUNC) (x + y); + return (tan_x * tan_y - 1) / (tan_x + tan_y); } diff --git a/sysdeps/mach/hurd/send.c b/sysdeps/mach/hurd/send.c index 79d76fa..e18339a 100644 --- a/sysdeps/mach/hurd/send.c +++ b/sysdeps/mach/hurd/send.c @@ -16,7 +16,6 @@ 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 <ansidecl.h> #include <errno.h> #include <sys/socket.h> #include <hurd.h> @@ -25,8 +24,11 @@ Cambridge, MA 02139, USA. */ /* Send N bytes of BUF to socket FD. Returns the number sent or -1. */ int -DEFUN(__send, (fd, buf, n, flags), - int fd AND const PTR buf AND size_t n AND int flags) +__send (fd, buf, n, flags) + int fd; + const void *buf; + size_t n; + int flags; { error_t err; int wrote; diff --git a/sysdeps/mach/hurd/sendto.c b/sysdeps/mach/hurd/sendto.c index 3621cd5..88026b8 100644 --- a/sysdeps/mach/hurd/sendto.c +++ b/sysdeps/mach/hurd/sendto.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1994, 1995 Free Software Foundation, Inc. +/* Copyright (C) 1994, 1995, 1996 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 @@ -16,7 +16,6 @@ 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 <ansidecl.h> #include <errno.h> #include <sys/socket.h> #include <hurd.h> @@ -28,9 +27,13 @@ Cambridge, MA 02139, USA. */ /* Send N bytes of BUF on socket FD to peer at address ADDR (which is ADDR_LEN bytes long). Returns the number sent, or -1 for errors. */ int -DEFUN(sendto, (fd, buf, n, flags, addr, addr_len), - int fd AND const PTR buf AND size_t n AND int flags AND - const struct sockaddr_un *addr AND size_t addr_len) +sendto (fd, buf, n, flags, addr, addr_len) + int fd; + const void *buf; + size_t n; + int flags; + const struct sockaddr_un *addr; + size_t addr_len; { addr_port_t aport; error_t err; diff --git a/sysdeps/posix/profil.c b/sysdeps/posix/profil.c index a6786b1..ddbd80a 100644 --- a/sysdeps/posix/profil.c +++ b/sysdeps/posix/profil.c @@ -78,6 +78,15 @@ profil (u_short *sample_buffer, size_t size, size_t offset, u_int scale) return sigaction (SIGPROF, &oact, NULL); } + if (samples) + { + /* Was already turned on. Restore old timer and signal handler + first. */ + if (setitimer (ITIMER_PROF, &otimer, NULL) < 0 + || sigaction (SIGPROF, &oact, NULL) < 0) + return -1; + } + samples = sample_buffer; nsamples = size / sizeof *samples; pc_offset = offset; diff --git a/sysdeps/stub/ustat.c b/sysdeps/stub/ustat.c index c90bd36..baa98fd 100644 --- a/sysdeps/stub/ustat.c +++ b/sysdeps/stub/ustat.c @@ -1,5 +1,5 @@ /* Return info on filesystem. -Copyright (C) 1995 Free Software Foundation, Inc. +Copyright (C) 1995, 1996 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 diff --git a/sysdeps/unix/Makefile b/sysdeps/unix/Makefile index 627b78c..d3cc46a 100644 --- a/sysdeps/unix/Makefile +++ b/sysdeps/unix/Makefile @@ -284,11 +284,11 @@ export asm_CPP := $(COMPILE.S) -E -x assembler-with-cpp $(common-objpfx)sysd-syscalls: $(..)sysdeps/unix/make-syscalls.sh \ $(wildcard $(+sysdep_dirs:%=%/syscalls.list)) - for dir in $$sysdirs; do \ - test -f $(..)sysdeps/$$dir/syscalls.list && \ + for dir in $(+sysdep_dirs); do \ + test -f $$dir/syscalls.list && \ { $(SHELL) $(dir $<)$(notdir $<) \ - $(..)sysdeps $$dir $(object-suffixes) || exit 1; }; \ - test $$dir = unix && break; \ + $$dir $(object-suffixes) || exit 1; }; \ + test $$dir = sysdeps/unix && break; \ done > $@T mv -f $@T $@ diff --git a/sysdeps/unix/alpha/sysdep.S b/sysdeps/unix/alpha/sysdep.S index 2d05305..336eb02 100644 --- a/sysdeps/unix/alpha/sysdep.S +++ b/sysdeps/unix/alpha/sysdep.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1993 Free Software Foundation, Inc. +/* Copyright (C) 1993, 1996 Free Software Foundation, Inc. Contributed by Brendan Kehoe (brendan@zen.org). The GNU C Library is free software; you can redistribute it and/or @@ -22,6 +22,7 @@ Cambridge, MA 02139, USA. */ .section .bss .globl errno + .align 2 errno: .space 4 #ifdef __ELF__ .type errno, @object diff --git a/sysdeps/unix/make-syscalls.sh b/sysdeps/unix/make-syscalls.sh index e2c0990..58e31eb 100644 --- a/sysdeps/unix/make-syscalls.sh +++ b/sysdeps/unix/make-syscalls.sh @@ -3,12 +3,11 @@ # Usage: make-syscalls.sh ../sysdeps unix/common # Expects $sysdirs in environment. -sysbase=$1; shift thisdir=$1; shift # Get the list of system calls for this directory. calls=`sed 's/#.*$// -/^[ ]*$/d' $sysbase/$thisdir/syscalls.list` +/^[ ]*$/d' $thisdir/syscalls.list` # Check each sysdep dir with higher priority than this one, # and remove from $calls all the functions found in other dirs. @@ -21,13 +20,13 @@ for dir in $sysdirs; do # If a syscall specified a "caller", then only compile that syscall # if the caller function is also implemented in this directory. calls=`echo "$calls" | while read file caller rest; do - test -f $sysbase/$dir/$file.c && continue - test -f $sysbase/$dir/$file.S && continue - test -f $sysbase/$dir/$file.s && continue + test -f $dir/$file.c && continue + test -f $dir/$file.S && continue + test -f $dir/$file.s && continue if test x$caller != x-; then - test -f $sysbase/$dir/$caller.c && continue - test -f $sysbase/$dir/$caller.S && continue - test -f $sysbase/$dir/$caller.s && continue + test -f $dir/$caller.c && continue + test -f $dir/$caller.S && continue + test -f $dir/$caller.s && continue fi echo $file $caller $rest done` diff --git a/sysdeps/unix/sysv/linux/alpha/Dist b/sysdeps/unix/sysv/linux/alpha/Dist index 79ac03f..d898d04 100644 --- a/sysdeps/unix/sysv/linux/alpha/Dist +++ b/sysdeps/unix/sysv/linux/alpha/Dist @@ -1,5 +1,6 @@ -alpha/ptrace.halpha/regdef.h +alpha/ptrace.h alpha/regdef.h ieee_get_fp_control.S ieee_set_fp_control.S ioperm.c init-first.h clone.S +sys/io.h diff --git a/sysdeps/unix/sysv/linux/alpha/Makefile b/sysdeps/unix/sysv/linux/alpha/Makefile index 3908b57..fa433e9 100644 --- a/sysdeps/unix/sysv/linux/alpha/Makefile +++ b/sysdeps/unix/sysv/linux/alpha/Makefile @@ -1,5 +1,5 @@ ifeq ($(subdir), misc) -sysdep_headers += alpha/ptrace.h alpha/regdef.h +sysdep_headers += alpha/ptrace.h alpha/regdef.h sys/io.h sysdep_routines += ieee_get_fp_control ieee_set_fp_control \ sethae ioperm osf_sigprocmask fstatfs statfs llseek diff --git a/sysdeps/unix/sysv/linux/alpha/init-first.h b/sysdeps/unix/sysv/linux/alpha/init-first.h index c27c589..ffbcaf1 100644 --- a/sysdeps/unix/sysv/linux/alpha/init-first.h +++ b/sysdeps/unix/sysv/linux/alpha/init-first.h @@ -1,12 +1,29 @@ -/* This fragment is invoked in the stack context of program start. - Its job is to set up a pointer to argc as an argument, pass - control to `INIT', and, if necessary, clean up after the call - to leave the stack in the same condition it was found in. */ +/* The job of this fragment it to find argc and friends for INIT. + This is done in one of two ways: either in the stack context + of program start, or having dlopen pass them in. */ -#define SYSDEP_CALL_INIT(NAME, INIT) \ - asm(".globl " #NAME "\n" \ - #NAME ":\n\t" \ - "ldgp $29, 0($27)\n\t" \ - ".prologue 1\n\t" \ - "mov $30, $16\n\t" \ - "br $31, " #INIT "..ng"); +#define SYSDEP_CALL_INIT(NAME, INIT) \ + asm(".weak _dl_starting_up\n\t" \ + ".globl " #NAME "\n\t" \ + ".ent " #NAME "\n" \ + #NAME ":\n\t" \ + "ldgp $29, 0($27)\n\t" \ + ".prologue 1\n\t" \ + ".set at\n\t" \ + /* Are we a dynamic libc being loaded into a static program? */ \ + "lda $0, _dl_starting_up\n\t" \ + "beq $0, 1f\n\t" \ + "ldl $0, 0($0)\n" \ + "cmpeq $31, $0, $0\n" \ + "1:\t" \ + "stl $0, __libc_multiple_libcs\n\t" \ + /* If so, argc et al are in a0-a2 already. Otherwise, load them. */ \ + "bne $0, 2f\n\t" \ + "ldl $16, 0($30)\n\t" \ + "lda $17, 8($30)\n\t" \ + "s8addq $16, $17, $18\n\t" \ + "addq $18, 8, $18\n" \ + "2:\t" \ + "br $31, " #INIT "..ng\n\t" \ + ".set noat\n\t" \ + ".end " #NAME); diff --git a/sysdeps/unix/sysv/linux/alpha/ioperm.c b/sysdeps/unix/sysv/linux/alpha/ioperm.c index a91608f..731059e 100644 --- a/sysdeps/unix/sysv/linux/alpha/ioperm.c +++ b/sysdeps/unix/sysv/linux/alpha/ioperm.c @@ -84,20 +84,21 @@ struct ioswtch { static struct platform { const char *name; int io_sys; + int hae_shift; unsigned long bus_memory_base; unsigned long sparse_bus_memory_base; } platform[] = { - {"Alcor", IOSYS_CIA, CIA_DENSE_MEM, CIA_SPARSE_MEM}, - {"Avanti", IOSYS_APECS, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"Cabriolet", IOSYS_APECS, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"EB164", IOSYS_CIA, CIA_DENSE_MEM, CIA_SPARSE_MEM}, - {"EB64+", IOSYS_APECS, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"EB66", IOSYS_APECS, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"EB66P", IOSYS_APECS, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"Jensen", IOSYS_JENSEN, 0, JENSEN_SPARSE_MEM}, - {"Mikasa", IOSYS_APECS, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"Mustang", IOSYS_APECS, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"Noname", IOSYS_APECS, APECS_DENSE_MEM, APECS_SPARSE_MEM}, + {"Alcor", IOSYS_CIA, 5, CIA_DENSE_MEM, CIA_SPARSE_MEM}, + {"Avanti", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, + {"Cabriolet", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, + {"EB164", IOSYS_CIA, 5, CIA_DENSE_MEM, CIA_SPARSE_MEM}, + {"EB64+", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, + {"EB66", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, + {"EB66P", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, + {"Jensen", IOSYS_JENSEN, 7, 0, JENSEN_SPARSE_MEM}, + {"Mikasa", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, + {"Mustang", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, + {"Noname", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, }; @@ -109,11 +110,11 @@ static struct { unsigned long base; struct ioswtch * swp; int sys; + int hae_shift; + unsigned long bus_memory_base; + unsigned long sparse_bus_memory_base; } io; -static unsigned long bus_memory_base = -1; -static unsigned long sparse_bus_memory_base = -1; - extern void __sethae (unsigned long); /* we can't use asm/io.h */ @@ -335,8 +336,9 @@ init_iosys (void) { if (strcmp (platform[i].name, systype) == 0) { - bus_memory_base = platform[i].bus_memory_base; - sparse_bus_memory_base = platform[i].sparse_bus_memory_base; + io.hae_shift = platform[i].hae_shift; + io.bus_memory_base = platform[i].bus_memory_base; + io.sparse_bus_memory_base = platform[i].sparse_bus_memory_base; io.sys = platform[i].io_sys; if (io.sys == IOSYS_JENSEN) io.swp = &ioswtch[0]; @@ -500,7 +502,7 @@ _bus_base(void) { if (!io.swp && init_iosys () < 0) return -1; - return bus_memory_base; + return io.bus_memory_base; } unsigned long @@ -508,7 +510,15 @@ _bus_base_sparse(void) { if (!io.swp && init_iosys () < 0) return -1; - return sparse_bus_memory_base; + return io.sparse_bus_memory_base; +} + +int +_hae_shift(void) +{ + if (!io.swp && init_iosys () < 0) + return -1; + return io.hae_shift; } weak_alias (_sethae, sethae); @@ -522,3 +532,4 @@ weak_alias (_outw, outw); weak_alias (_outl, outl); weak_alias (_bus_base, bus_base); weak_alias (_bus_base_sparse, bus_base_sparse); +weak_alias (_hae_shift, hae_shift); diff --git a/sysdeps/unix/sysv/linux/alpha/sys/io.h b/sysdeps/unix/sysv/linux/alpha/sys/io.h new file mode 100644 index 0000000..a880735 --- /dev/null +++ b/sysdeps/unix/sysv/linux/alpha/sys/io.h @@ -0,0 +1,59 @@ +/* Copyright (C) 1996 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., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#ifndef _SYS_IO_H + +#define _SYS_IO_H 1 +#include <features.h> + +__BEGIN_DECLS + +/* Get constants from kernel header files. */ +#include <asm/io.h> + +/* If TURN_ON is TRUE, request for permission to do direct i/o on the + port numbers in the range [FROM,FROM+NUM-1]. Otherwise, turn I/O + permission off for that range. This call requires root privileges. + + Portability note: not all Linux platforms support this call. Most + platforms based on the PC I/O architecture probably will, however. + E.g., Linux/Alpha for Alpha PCs supports this. */ +extern int ioperm __P ((unsigned long int __from, unsigned long int __num, + int __turn_on)); + +/* Set the I/O privilege level to LEVEL. If LEVEL>3, permission to + access any I/O port is granted. This call requires root + privileges. */ +extern int iopl __P ((int __level)); + +/* Return the physical address of the DENSE I/O memory or NULL if none + is available (e.g. on a jensen). */ +extern unsigned long _bus_base __P ((void)) __attribute__ ((const)); +extern unsigned long bus_base __P ((void)) __attribute__ ((const)); + +/* Return the physical address of the SPARSE I/O memory. */ +extern unsigned long _bus_base_sparse __P ((void)) __attribute__ ((const)); +extern unsigned long bus_base_sparse __P ((void)) __attribute__ ((const)); + +/* Return the HAE shift used by the SPARSE I/O memory. */ +extern int _hae_shift __P ((void)) __attribute__ ((const)); +extern int hae_shift __P ((void)) __attribute__ ((const)); + +__END_DECLS + +#endif /* _SYS_IO_H */ diff --git a/sysdeps/unix/sysv/linux/i386/Dist b/sysdeps/unix/sysv/linux/i386/Dist index 4e4f467..780edfc 100644 --- a/sysdeps/unix/sysv/linux/i386/Dist +++ b/sysdeps/unix/sysv/linux/i386/Dist @@ -1,3 +1,3 @@ sys/perm.h sys/vm86.h init-first.h -close.S +clone.S diff --git a/sysdeps/unix/sysv/linux/i386/init-first.h b/sysdeps/unix/sysv/linux/i386/init-first.h index f42d7f2..4c61f1b 100644 --- a/sysdeps/unix/sysv/linux/i386/init-first.h +++ b/sysdeps/unix/sysv/linux/i386/init-first.h @@ -1,13 +1,27 @@ -/* This fragment is invoked in the stack context of program start. - Its job is to set up a pointer to argc as an argument, pass - control to `INIT', and, if necessary, clean up after the call - to leave the stack in the same condition it was found in. */ +/* The job of this fragment it to find argc and friends for INIT. + This is done in one of two ways: either in the stack context + of program start, or having dlopen pass them in. */ -#define SYSDEP_CALL_INIT(NAME, INIT) \ - asm(".globl " #NAME "\n\t" \ - #NAME ":\n\t" \ - "lea 4(%esp), %eax\n\t" \ - "pushl %eax\n\t" \ - "call " #INIT "\n\t" \ - "popl %eax\n\t" \ - "ret"); +#define SYSDEP_CALL_INIT(NAME, INIT) \ +void NAME (void *arg) \ +{ \ + int argc; \ + char **argv, **envp; \ + \ + __libc_multiple_libcs = &_dl_starting_up && !_dl_starting_up; \ + \ + if (!__libc_multiple_libcs) \ + { \ + argc = (int) arg; \ + argv = (char **) &arg + 1; \ + envp = &argv[argc+1]; \ + } \ + else \ + { \ + argc = (int) arg; \ + argv = ((char ***) &arg)[1]; \ + envp = ((char ***) &arg)[2]; \ + } \ + \ + INIT (argc, argv, envp); \ +} diff --git a/sysdeps/unix/sysv/linux/i386/mmap.S b/sysdeps/unix/sysv/linux/i386/mmap.S index 90ac88c..638d548 100644 --- a/sysdeps/unix/sysv/linux/i386/mmap.S +++ b/sysdeps/unix/sysv/linux/i386/mmap.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1995 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1996 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 @@ -36,9 +36,9 @@ ENTRY (__mmap) /* Restore registers. */ movl %edx, %ebx - /* %eax is < 0 if there was an error. */ - testl %eax, %eax - jl syscall_error + /* If 0 > %eax > -4096 there was an error. */ + cmpl $-4096, %eax + ja syscall_error /* Successful; return the syscall's value. */ ret diff --git a/sysdeps/unix/sysv/linux/init-first.c b/sysdeps/unix/sysv/linux/init-first.c index ae163bc..9f0a3c0 100644 --- a/sysdeps/unix/sysv/linux/init-first.c +++ b/sysdeps/unix/sysv/linux/init-first.c @@ -27,7 +27,7 @@ extern void __libc_init (int, char **, char **); extern void __libc_global_ctors (void); /* The function is called from assembly stubs the compiler can't see. */ -static void init (void *) __attribute__ ((unused)); +static void init (int, char **, char **) __attribute__ ((unused)); extern int _dl_starting_up; weak_extern (_dl_starting_up) @@ -40,26 +40,16 @@ int __libc_multiple_libcs = 1; later calls of initializers for dynamic libraries. */ int __libc_argc; char **__libc_argv; -char **__libc_envp; static void -init (void *data) +init (int argc, char **argv, char **envp) { extern int __personality (int); - __libc_multiple_libcs = &_dl_starting_up && ! _dl_starting_up; - - /* We must not call `personality' twice. */ if (!__libc_multiple_libcs) { - /* The argument we got points to the values describing the - command line argument etc. */ - __libc_argc = *(int *)data; - __libc_argv = (char **)data + 1; - __libc_envp = &__libc_argv[__libc_argc + 1]; - /* The `personality' system call takes one argument that chooses the "personality", i.e. the set of system calls and such. We must make this call first thing to disable emulation of some @@ -70,17 +60,13 @@ init (void *data) /* Set the FPU control word to the proper default value. */ __setfpucw (__fpu_control); } - else - { - /* The argument we got points to the values describing the - command line argument etc. */ - __libc_argc = *((int *)data)++; - __libc_argv = *((char ***)data)++; - __libc_envp = *(char ***)data; - } - __environ = __libc_envp; - __libc_init (__libc_argc, __libc_argv, __libc_envp); + /* Save the command-line arguments. */ + __libc_argc = argc; + __libc_argv = argv; + __environ = envp; + + __libc_init (argc, argv, envp); #ifdef PIC __libc_global_ctors (); |