aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/s390/s390-32
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-32')
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/Dist7
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/chown.c4
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/fxstatat.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S2
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/lchown.c4
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c20
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S2
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S2
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/syscall.S9
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h47
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h35
12 files changed, 68 insertions, 66 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/Dist b/sysdeps/unix/sysv/linux/s390/s390-32/Dist
deleted file mode 100644
index c0a7dc8c93..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-32/Dist
+++ /dev/null
@@ -1,7 +0,0 @@
-clone.S
-oldgetrlimit64.c
-setresuid.c
-setresgid.c
-setfsuid.c
-setfsgid.c
-ucontext_i.h
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/chown.c b/sysdeps/unix/sysv/linux/s390/s390-32/chown.c
index 0656b396f8..5909ba8a43 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/chown.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/chown.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2000,2001,2002,2003,2004,2006 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
@@ -25,7 +25,7 @@
#include <bp-checks.h>
#include <linux/posix_types.h>
-#include "kernel-features.h"
+#include <kernel-features.h>
/*
In Linux 2.1.x the chown functions have been changed. A new function lchown
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c b/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c
new file mode 100644
index 0000000000..dfed76aeb4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/fchownat.c>
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/fxstatat.c b/sysdeps/unix/sysv/linux/s390/s390-32/fxstatat.c
new file mode 100644
index 0000000000..0f8b3135d8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/fxstatat.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/fxstatat.c>
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
index 2578b3ddc0..3b38d19488 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
@@ -72,4 +72,4 @@ ENTRY(__getcontext)
br %r14
END(__getcontext)
-weak_alias(__getcontext, getcontext)
+weak_alias (__getcontext, getcontext)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c b/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c
index ccdb67b15c..1e64a0ef75 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 2003, 2006 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
@@ -24,7 +24,7 @@
#include <bp-checks.h>
#include <linux/posix_types.h>
-#include "kernel-features.h"
+#include <kernel-features.h>
# ifdef __NR_lchown32
# if __ASSUME_32BITUIDS == 0
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c b/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c
index 29c8640e92..94760e0c2b 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c
@@ -37,8 +37,6 @@
+-----------------------+
n | overflow parameters | 96
+-----------------------+
- 8 | trampoline | 96+n
- +-----------------------+
The registers are set up like this:
%r2-%r6: parameters 1 to 5
%r7 : (*func) pointer
@@ -55,18 +53,16 @@
void
__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
{
+ extern void __makecontext_ret (void);
unsigned long *sp;
va_list ap;
int i;
- sp = (long *) (((long) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size) & -8L);
-
- /* Setup the trampoline. */
- *--sp = 0x07f90000;
- *--sp = 0x0de71828;
+ sp = (unsigned long *) (((unsigned long) ucp->uc_stack.ss_sp
+ + ucp->uc_stack.ss_size) & -8L);
/* Set the return address to trampoline. */
- ucp->uc_mcontext.gregs[14] = (long) sp;
+ ucp->uc_mcontext.gregs[14] = (long) __makecontext_ret;
/* Set register parameters. */
va_start (ap, argc);
@@ -98,4 +94,12 @@ __makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
ucp->uc_mcontext.gregs[15] = (long) sp;
}
+asm(".text\n"
+ ".type __makecontext_ret,@function\n"
+ "__makecontext_ret:\n"
+ " basr %r14,%r7\n"
+ " lr %r2,%r8\n"
+ " br %r9\n"
+ ".size __makecontext_ret, .-__makecontext_ret");
+
weak_alias (__makecontext, makecontext)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
index 7ad360a3a0..cce8d29735 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
@@ -69,4 +69,4 @@ ENTRY(__setcontext)
br %r14
END(__setcontext)
-weak_alias(__setcontext, setcontext)
+weak_alias (__setcontext, setcontext)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
index d9abb62c0b..bf70f11cc7 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
@@ -105,4 +105,4 @@ ENTRY(__swapcontext)
/* Return. */
br %r14
END(__swapcontext)
-weak_alias(__swapcontext, swapcontext)
+weak_alias (__swapcontext, swapcontext)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S b/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S
index d1ce925ac3..b7e1736891 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 2006 Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
@@ -48,13 +48,14 @@ ENTRY (syscall)
lr %r4,%r5 /* third parameter */
lr %r5,%r6 /* fourth parameter */
l %r6,192(%r15) /* fifth parameter */
+ l %r7,196(%r15) /* sixth parameter */
- basr %r7,0
-0: cl %r1,4f-0b(%r7) /* svc number < 256? */
+ basr %r8,0
+0: cl %r1,4f-0b(%r8) /* svc number < 256? */
jl 2f
1: svc 0
j 3f
-2: ex %r1,1b-0b(%r7) /* lsb of R1 is subsituted as SVC number */
+2: ex %r1,1b-0b(%r8) /* lsb of R1 is subsituted as SVC number */
3: l %r15,0(%r15) /* load back chain */
cfi_adjust_cfa_offset (-96)
lm %r6,15,24(%r15) /* load registers */
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
index 43b1b951d5..b86072bd30 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 2000,01,02,03,04 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
@@ -23,6 +24,7 @@
#include <sysdeps/s390/s390-32/sysdep.h>
#include <sysdeps/unix/sysdep.h>
#include <dl-sysdep.h> /* For RTLD_PRIVATE_ERRNO. */
+#include <tls.h>
/* For Linux we can use the system call table in the header file
/usr/include/asm/unistd.h
@@ -111,8 +113,8 @@
0: lcr %r0,%r2; \
basr %r1,0; \
1: al %r1,2f-1b(%r1); \
- l %r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1) \
- ear %r2,%a0 \
+ l %r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1); \
+ ear %r2,%a0; \
st %r0,0(%r1,%r2); \
lhi %r2,-1; \
br %r14; \
@@ -147,19 +149,28 @@
arg 3 4 call-clobbered
arg 4 5 call-clobbered
arg 5 6 call-saved
+ arg 6 7 call-saved
(Of course a function with say 3 arguments does not have entries for
arguments 4 and 5.)
- S390 does not need to do ANY stack operations to get its parameters
- right.
+ For system calls with 6 parameters a stack operation is required
+ to load the 6th parameter to register 7. Call saved register 7 is
+ moved to register 0 and back to avoid an additional stack frame.
*/
#define DO_CALL(syscall, args) \
+ .if args > 5; \
+ lr %r0,%r7; \
+ l %r7,96(%r15); \
+ .endif; \
.if SYS_ify (syscall) < 256; \
svc SYS_ify (syscall); \
.else; \
lhi %r1,SYS_ify (syscall); \
svc 0; \
+ .endif; \
+ .if args > 5; \
+ lr %r7,%r0; \
.endif
#define ret \
@@ -253,6 +264,9 @@
#define DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
DECLARGS_4(arg1, arg2, arg3, arg4) \
register unsigned long gpr6 asm ("6") = (unsigned long)(arg5);
+#define DECLARGS_6(arg1, arg2, arg3, arg4, arg5, arg6) \
+ DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
+ register unsigned long gpr7 asm ("7") = (unsigned long)(arg6);
#define ASMFMT_0
#define ASMFMT_1 , "0" (gpr2)
@@ -260,5 +274,28 @@
#define ASMFMT_3 , "0" (gpr2), "d" (gpr3), "d" (gpr4)
#define ASMFMT_4 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5)
#define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6)
+#define ASMFMT_6 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6), "d" (gpr7)
+
+
+/* Pointer mangling support. */
+#if defined NOT_IN_libc && defined IS_IN_rtld
+/* We cannot use the thread descriptor because in ld.so we use setjmp
+ earlier than the descriptor is initialized. */
+#else
+/* For the time being just use stack_guard rather than a separate
+ pointer_guard. */
+# ifdef __ASSEMBLER__
+# define PTR_MANGLE(reg, tmpreg) \
+ ear tmpreg,%a0; \
+ x reg,STACK_GUARD(tmpreg)
+# define PTR_MANGLE2(reg, tmpreg) \
+ x reg,STACK_GUARD(tmpreg)
+# define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg)
+# else
+# define PTR_MANGLE(var) \
+ (var) = (void *) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
+# define PTR_DEMANGLE(var) PTR_MANGLE (var)
+# endif
+#endif
#endif /* _LINUX_S390_SYSDEP_H */
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h b/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h
deleted file mode 100644
index 2e51f04e65..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-/* Constants shared between setcontext() and getcontext(). Don't
- install this header file. */
-
-#define SIG_BLOCK 0
-#define SIG_UNBLOCK 1
-#define SIG_SETMASK 2
-
-#define SC_FLGS 0x000
-#define SC_LINK 0x004
-#define SC_STCK 0x008
-#define SC_PSW 0x018
-#define SC_GPRS 0x020
-#define SC_ACRS 0x060
-#define SC_FPC 0x0A0
-#define SC_FPRS 0x0A8
-#define SC_MASK 0x128
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-01 18:06:44 +0000