diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390')
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h | 28 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-64/socket.S | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h | 24 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/sys/user.h | 63 |
4 files changed, 110 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h index 43b1b951d5..355108a493 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 + 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; \ @@ -261,4 +263,24 @@ #define ASMFMT_4 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5) #define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6) + +/* 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_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/s390-64/socket.S b/sysdeps/unix/sysv/linux/s390/s390-64/socket.S index c98a97449b..d4c3a1c4e1 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/socket.S +++ b/sysdeps/unix/sysv/linux/s390/s390-64/socket.S @@ -128,6 +128,7 @@ L(socket_cancel): j 4b #endif + SYSCALL_ERROR_HANDLER END (__socket) #ifndef NO_WEAK_ALIAS diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h index 154bc06803..562fc7df76 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h +++ b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h @@ -1,5 +1,5 @@ /* Assembler macros for 64 bit S/390. - Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). This file is part of the GNU C Library. @@ -24,6 +24,7 @@ #include <sysdeps/s390/s390-64/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 @@ -263,4 +264,25 @@ #define ASMFMT_4 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5) #define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6) +/* 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; \ + sllg tmpreg,tmpreg,32; \ + ear tmpreg,%a1; \ + xg 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/sys/user.h b/sysdeps/unix/sysv/linux/s390/sys/user.h index eddd196c72..f00caea84d 100644 --- a/sysdeps/unix/sysv/linux/s390/sys/user.h +++ b/sysdeps/unix/sysv/linux/s390/sys/user.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2000 Free Software Foundation, Inc. +/* Copyright (C) 2000,2005 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 @@ -19,6 +19,65 @@ #ifndef _SYS_USER_H #define _SYS_USER_H 1 -#include <asm/user.h> +/* The whole purpose of this file is for GDB and GDB only. Don't read + too much into it. Don't use it for anything other than GDB unless + you know what you are doing. */ + +struct _user_psw_struct +{ + unsigned long mask; + unsigned long addr; +}; + +struct _user_fpregs_struct +{ + unsigned int fpc; + double fprs[16]; +}; + +struct _user_per_struct +{ + unsigned long control_regs[3]; + unsigned single_step : 1; + unsigned instruction_fetch : 1; + unsigned : 30; + unsigned long starting_addr; + unsigned long ending_addr; + unsigned short perc_atmid; + unsigned long address; + unsigned char access_id; +}; + +struct _user_regs_struct +{ + struct _user_psw_struct psw; /* Program status word. */ + unsigned long gprs[16]; /* General purpose registers. */ + unsigned int acrs[16]; /* Access registers. */ + unsigned long orig_gpr2; /* Original gpr2. */ + struct _user_fpregs_struct fp_regs; /* Floating point registers. */ + struct _user_per_struct per_info; /* Hardware tracing registers. */ + unsigned long ieee_instruction_pointer; +}; + +struct user { + struct _user_regs_struct regs; /* User registers. */ + unsigned long int u_tsize; /* Text segment size (pages). */ + unsigned long int u_dsize; /* Data segment size (pages). */ + unsigned long int u_ssize; /* Stack segment size (pages). */ + unsigned long start_code; /* Starting address of text. */ + unsigned long start_stack; /* Starting address of stack area. */ + long int signal; /* Signal causing the core dump. */ + struct _user_regs_struct *u_ar0; /* Help gdb find registers. */ + unsigned long magic; /* Identifies a core file. */ + char u_comm[32]; /* User command naem. */ +}; + +#define PAGE_SHIFT 12 +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) +#define NBPG PAGE_SIZE +#define UPAGES 1 +#define HOST_TEXT_START_ADDR (u.start_code) +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) #endif /* _SYS_USER_H */ |