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* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (INTERNAL_SYSCALL, 

INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): New macros.
	(INLINE_SYSCALL): Use that.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (INTERNAL_SYSCALL,
	INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): New macros.
	(INLINE_SYSCALL): Use that.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (INTERNAL_SYSCALL,
	INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): New macros.
	(INLINE_SYSCALL): Use that.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Include
	dl-sysdep.h.
	(SYSCALL_ERROR_HANDLER): Define RTLD_PRIVATE_ERRNO variant.
	(__INTERNAL_SYSCALL_STRING): Define.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Include
	dl-sysdep.h.
	(SYSCALL_ERROR_HANDLER): Define RTLD_PRIVATE_ERRNO variant.
	(__INTERNAL_SYSCALL_STRING): Define.
	* sysdeps/unix/sysv/linux/sparc/sysdep.h (INLINE_SYSCALL): Pass
	__SYSCALL_STRING to inline_syscall*.
	(INTERNAL_SYSCALL, INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO):
	New macros.
	(inline_syscall0, inline_syscall1, inline_syscall2, inline_syscall3,
	inline_syscall4, inline_syscall5, inline_syscall6): Add string
	argument.

2002-10-24  Roland McGrath  <roland@redhat.com>

	* libio/bug-wfflush.c: New file.
	* libio/Makefile (tests): Add bug-wfflush.
This commit is contained in:
Roland McGrath 2002-10-24 18:49:00 +00:00
parent 90d5987081
commit 369b849f1a
9 changed files with 271 additions and 74 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
ChangeLog
View File

@ -1,3 +1,35 @@
2002-10-24 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (INTERNAL_SYSCALL,
INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): New macros.
(INLINE_SYSCALL): Use that.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (INTERNAL_SYSCALL,
INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): New macros.
(INLINE_SYSCALL): Use that.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h (INTERNAL_SYSCALL,
INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): New macros.
(INLINE_SYSCALL): Use that.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Include
dl-sysdep.h.
(SYSCALL_ERROR_HANDLER): Define RTLD_PRIVATE_ERRNO variant.
(__INTERNAL_SYSCALL_STRING): Define.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Include
dl-sysdep.h.
(SYSCALL_ERROR_HANDLER): Define RTLD_PRIVATE_ERRNO variant.
(__INTERNAL_SYSCALL_STRING): Define.
* sysdeps/unix/sysv/linux/sparc/sysdep.h (INLINE_SYSCALL): Pass
__SYSCALL_STRING to inline_syscall*.
(INTERNAL_SYSCALL, INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO):
New macros.
(inline_syscall0, inline_syscall1, inline_syscall2, inline_syscall3,
inline_syscall4, inline_syscall5, inline_syscall6): Add string
argument.
2002-10-24 Roland McGrath <roland@redhat.com>
* libio/bug-wfflush.c: New file.
* libio/Makefile (tests): Add bug-wfflush.
2002-10-23 Roland McGrath <roland@redhat.com>
* stdio-common/tst-fphex.c: New file.
@ -81,15 +113,6 @@
* sysdeps/gnu/bits/msq.h: Likewise.
* sysvipc/sys/ipc.h: Likewise.
2002-10-22 Roland McGrath <roland@redhat.com>
* sysdeps/generic/libc-tls.c (_dl_tls_static_used): New variable.
* sysdeps/generic/ldsodefs.h (struct rtld_global): New member
`_dl_tls_static_used'.
(TLS_STATIC_MIN): New macro.
* elf/dl-reloc.c [USE_TLS] (allocate_static_tls): New function.
(CHECK_STATIC_TLS): Use it.
2002-10-22 Ulrich Drepper <drepper@redhat.com>
* elf/dl-load.c (struct filebuf): For buf element to have the

2
libio/Makefile
View File

@ -53,7 +53,7 @@ tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \
tst-mmap-setvbuf bug-ungetwc1 bug-ungetwc2 tst-atime tst-eof \
tst-freopen bug-rewind bug-rewind2 bug-ungetc bug-fseek \
tst-mmap-eofsync tst-mmap-fflushsync bug-mmap-fflush \
tst-mmap2-eofsync tst-mmap-offend bug-fopena+
tst-mmap2-eofsync tst-mmap-offend bug-fopena+ bug-wfflush
test-srcs = test-freopen
all: # Make this the default target; it will be defined in Rules.

75
libio/bug-wfflush.c Normal file
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@ -0,0 +1,75 @@
/* Test program for bug in wide streams. */
#include <stdio.h>
#include <wchar.h>
static void do_prepare (void);
#define PREPARE(argc, argv) do_prepare ()
static int do_test (void);
#define TEST_FUNCTION do_test ()
#include <test-skeleton.c>
static char *temp_file;
static void
do_prepare (void)
{
int fd = create_temp_file ("bug-ungetc.", &temp_file);
if (fd == -1)
{
printf ("cannot create temporary file: %m\n");
exit (1);
}
write (fd, "1!", 2);
close (fd);
}
static int
do_test (void)
{
FILE *f = fopen (temp_file, "r+");
if (f == NULL)
{
printf ("fopen: %m\n");
return 1;
}
#define L_(s) L##s
//#define fwscanf fscanf
//#define fwprintf fprintf
int i;
if (fwscanf (f, L_("%d!"), &i) != 1)
{
printf ("fwscanf failed\n");
return 1;
}
if (fseek (f, 0, SEEK_SET) != 0)
{
printf ("fseek: %m\n");
return 1;
}
if (fwprintf (f, L_("1!")) < 2)
{
printf ("fwprintf: %m\n");
return 1;
}
if (fflush (f) != 0)
{
printf ("fflush: %m\n");
return 1;
}
if (fclose (f) != 0)
{
printf ("fclose: %m\n");
return 1;
}
puts ("Test succeeded.");
return 0;
}

44
sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
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@ -119,24 +119,36 @@
#endif /* __ASSEMBLER__ */
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ \
DECLARGS_##nr(args) \
int err; \
asm volatile ( \
LOADARGS_##nr \
"svc %b1\n\t" \
"lr %0,%%r2\n\t" \
: "=d" (err) \
: "I" (__NR_##name) ASMFMT_##nr \
: "memory", "cc", "2", "3", "4", "5", "6"); \
if (err >= 0xfffff001) \
{ \
__set_errno(-err); \
err = 0xffffffff; \
} \
#define INLINE_SYSCALL(name, nr, args...) \
({ \
unsigned int err = INTERNAL_SYSCALL (name, nr, args); \
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (err), 0)) \
{ \
__set_errno (INTERNAL_SYSCALL_ERRNO (err)); \
err = 0xffffffff; \
} \
(int) err; })
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, nr, args...) \
({ \
DECLARGS_##nr(args) \
int err; \
asm volatile ( \
LOADARGS_##nr \
"svc %b1\n\t" \
"lr %0,%%r2\n\t" \
: "=d" (err) \
: "I" (__NR_##name) ASMFMT_##nr \
: "memory", "cc", "2", "3", "4", "5", "6"); \
(int) err; })
#undef INTERNAL_SYSCALL_ERROR_P
#define INTERNAL_SYSCALL_ERROR_P(val) ((unsigned int) (val) >= 0xfffff001u)
#undef INTERNAL_SYSCALL_ERRNO
#define INTERNAL_SYSCALL_ERRNO(val) (-(val))
#define DECLARGS_0()
#define DECLARGS_1(arg1) \
unsigned int gpr2 = (unsigned int) (arg1);

22
sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
View File

@ -114,6 +114,17 @@
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ \
unsigned int err = INTERNAL_SYSCALL (name, nr, args); \
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (err), 0)) \
{ \
__set_errno (INTERNAL_SYSCALL_ERRNO (err)); \
err = -1; \
} \
(int) err; })
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, nr, args...) \
({ \
DECLARGS_##nr(args) \
int err; \
@ -124,13 +135,14 @@
: "=d" (err) \
: "I" (__NR_##name) ASMFMT_##nr \
: "memory", "cc", "2", "3", "4", "5", "6"); \
if (err >= 0xfffff001) \
{ \
__set_errno(-err); \
err = -1; \
} \
(int) err; })
#undef INTERNAL_SYSCALL_ERROR_P
#define INTERNAL_SYSCALL_ERROR_P(val) ((unsigned int) (val) >= 0xfffff001u)
#undef INTERNAL_SYSCALL_ERRNO
#define INTERNAL_SYSCALL_ERRNO(val) (-(val))
#define DECLARGS_0()
#define DECLARGS_1(arg1) \
unsigned long gpr2 = (unsigned long) (arg1);

54
sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
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@ -22,6 +22,10 @@
#include <sysdeps/unix/sparc/sysdep.h>
#ifdef IS_IN_rtld
# include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */
#endif
#undef SYS_ify
#define SYS_ify(syscall_name) __NR_##syscall_name
@ -50,25 +54,35 @@
#define LOC(name) .L##name
#ifdef PIC
#define SYSCALL_ERROR_HANDLER \
.global C_SYMBOL_NAME(__errno_location); \
.type C_SYMBOL_NAME(__errno_location),@function; \
save %sp,-96,%sp; \
#if RTLD_PRIVATE_ERRNO
# define SYSCALL_ERROR_HANDLER \
.section .gnu.linkonce.t.__sparc.get_pic.l7,"ax",@progbits; \
.globl __sparc.get_pic.l7; \
.hidden __sparc.get_pic.l7; \
.type __sparc.get_pic.l7,@function; \
__sparc.get_pic.l7: \
retl; \
add %o7, %l7, %l7; \
.previous; \
save %sp,-96,%sp; \
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7; \
call __sparc.get_pic.l7; \
add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7; \
ld [%l7 + errno], %l0; \
st %i0, [%l0]; \
jmpl %i7+8, %g0; \
restore %g0, -1, %o0;
#else
# define SYSCALL_ERROR_HANDLER \
.global __errno_location; \
.type __errno_location,@function; \
save %sp, -96, %sp; \
call __errno_location; \
nop; \
st %i0,[%o0]; \
jmpl %i7+8,%g0; \
restore %g0,-1,%o0;
#else
#define SYSCALL_ERROR_HANDLER \
save %sp,-96,%sp; \
call __errno_location; \
nop; \
st %i0,[%o0]; \
jmpl %i7+8,%g0; \
restore %g0,-1,%o0;
#endif /* PIC */
st %i0, [%o0]; \
jmpl %i7+8, %g0; \
restore %g0, -1, %o0;
#endif
#define PSEUDO(name, syscall_name, args) \
.text; \
@ -97,6 +111,12 @@
" restore %%g0, -1, %%o0;" \
".previous;"
#define __INTERNAL_SYSCALL_STRING \
"ta 0x10;" \
"bcs,a 1f;" \
" sub %%g0, %%o0, %%o0;" \
"1:"
#define __SYSCALL_CLOBBERS "g2", "g3", "g4", "g5", "g7", \
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \

44
sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
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@ -1,4 +1,4 @@
/* Copyright (C) 1997, 2000 Free Software Foundation, Inc.
/* Copyright (C) 1997, 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
@ -22,6 +22,10 @@
#include <sysdeps/unix/sysdep.h>
#ifdef IS_IN_rtld
# include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */
#endif
#undef SYS_ify
#define SYS_ify(syscall_name) __NR_##syscall_name
@ -43,13 +47,35 @@
C_LABEL(name); \
.type name,@function;
#define SYSCALL_ERROR_HANDLER \
#if RTLD_PRIVATE_ERRNO
# define SYSCALL_ERROR_HANDLER \
.section .gnu.linkonce.t.__sparc64.get_pic.l7,"ax",@progbits; \
.globl __sparc64.get_pic.l7; \
.hidden __sparc64.get_pic.l7; \
.type __sparc64.get_pic.l7,@function; \
__sparc64.get_pic.l7: \
retl; \
add %o7, %l7, %l7; \
.previous; \
save %sp, -192, %sp; \
call __errno_location; \
nop; \
st %i0, [%o0]; \
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7; \
call __sparc.get_pic.l7; \
add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7; \
ldx [%l7 + errno], %l0; \
st %i0, [%l0]; \
jmpl %i7+8, %g0; \
restore %g0, -1, %o0
restore %g0, -1, %o0;
#else
# define SYSCALL_ERROR_HANDLER \
.global __errno_location; \
.type __errno_location,@function; \
save %sp, -192, %sp; \
call __errno_location; \
nop; \
st %i0, [%o0]; \
jmpl %i7+8, %g0; \
restore %g0, -1, %o0;
#endif
#define PSEUDO(name, syscall_name, args) \
.text; \
@ -88,6 +114,12 @@
"restore %%g0, -1, %%o0;" \
"1:"
#define __INTERNAL_SYSCALL_STRING \
"ta 0x6d;" \
"bcs,a,pt %%xcc, 1f;" \
" sub %%g0, %%o0, %%o0;" \
"1:"
#define __SYSCALL_CLOBBERS "g2", "g3", "g4", "g5", "g7", \
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \

41
sysdeps/unix/sysv/linux/sparc/sysdep.h
View File

@ -21,67 +21,78 @@
#define _LINUX_SPARC_SYSDEP_H 1
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) inline_syscall##nr(name, args)
#define INLINE_SYSCALL(name, nr, args...) \
inline_syscall##nr(__SYSCALL_STRING, name, args)
#define inline_syscall0(name,dummy...) \
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, nr, args...) \
inline_syscall##nr(__INTERNAL_SYSCALL_STRING, name, args)
#undef INTERNAL_SYSCALL_ERROR_P
#define INTERNAL_SYSCALL_ERROR_P(val) ((unsigned long) (val) >= -515L)
#undef INTERNAL_SYSCALL_ERRNO
#define INTERNAL_SYSCALL_ERRNO(val) (-(val))
#define inline_syscall0(string,name,dummy...) \
({ \
register long __o0 __asm__ ("o0"); \
register long __g1 __asm__ ("g1") = __NR_##name; \
__asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
__asm __volatile (string : "=r" (__g1), "=r" (__o0) : \
"0" (__g1) : \
__SYSCALL_CLOBBERS); \
__o0; \
})
#define inline_syscall1(name,arg1) \
#define inline_syscall1(string,name,arg1) \
({ \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __g1 __asm__ ("g1") = __NR_##name; \
__asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
__asm __volatile (string : "=r" (__g1), "=r" (__o0) : \
"0" (__g1), "1" (__o0) : \
__SYSCALL_CLOBBERS); \
__o0; \
})
#define inline_syscall2(name,arg1,arg2) \
#define inline_syscall2(string,name,arg1,arg2) \
({ \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
register long __g1 __asm__ ("g1") = __NR_##name; \
__asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
__asm __volatile (string : "=r" (__g1), "=r" (__o0) : \
"0" (__g1), "1" (__o0), "r" (__o1) : \
__SYSCALL_CLOBBERS); \
__o0; \
})
#define inline_syscall3(name,arg1,arg2,arg3) \
#define inline_syscall3(string,name,arg1,arg2,arg3) \
({ \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
register long __o2 __asm__ ("o2") = (long)(arg3); \
register long __g1 __asm__ ("g1") = __NR_##name; \
__asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
__asm __volatile (string : "=r" (__g1), "=r" (__o0) : \
"0" (__g1), "1" (__o0), "r" (__o1), \
"r" (__o2) : \
__SYSCALL_CLOBBERS); \
__o0; \
})
#define inline_syscall4(name,arg1,arg2,arg3,arg4) \
#define inline_syscall4(string,name,arg1,arg2,arg3,arg4) \
({ \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
register long __o2 __asm__ ("o2") = (long)(arg3); \
register long __o3 __asm__ ("o3") = (long)(arg4); \
register long __g1 __asm__ ("g1") = __NR_##name; \
__asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
__asm __volatile (string : "=r" (__g1), "=r" (__o0) : \
"0" (__g1), "1" (__o0), "r" (__o1), \
"r" (__o2), "r" (__o3) : \
__SYSCALL_CLOBBERS); \
__o0; \
})
#define inline_syscall5(name,arg1,arg2,arg3,arg4,arg5) \
#define inline_syscall5(string,name,arg1,arg2,arg3,arg4,arg5) \
({ \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
@ -89,14 +100,14 @@
register long __o3 __asm__ ("o3") = (long)(arg4); \
register long __o4 __asm__ ("o4") = (long)(arg5); \
register long __g1 __asm__ ("g1") = __NR_##name; \
__asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
__asm __volatile (string : "=r" (__g1), "=r" (__o0) : \
"0" (__g1), "1" (__o0), "r" (__o1), \
"r" (__o2), "r" (__o3), "r" (__o4) : \
__SYSCALL_CLOBBERS); \
__o0; \
})
#define inline_syscall6(name,arg1,arg2,arg3,arg4,arg5,arg6) \
#define inline_syscall6(string,name,arg1,arg2,arg3,arg4,arg5,arg6) \
({ \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
@ -105,7 +116,7 @@
register long __o4 __asm__ ("o4") = (long)(arg5); \
register long __o5 __asm__ ("o5") = (long)(arg6); \
register long __g1 __asm__ ("g1") = __NR_##name; \
__asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
__asm __volatile (string : "=r" (__g1), "=r" (__o0) : \
"0" (__g1), "1" (__o0), "r" (__o1), \
"r" (__o2), "r" (__o3), "r" (__o4), \
"r" (__o5) : \

22
sysdeps/unix/sysv/linux/x86_64/sysdep.h
View File

@ -185,6 +185,17 @@
call. */
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ \
unsigned long resultvar = INTERNAL_SYSCALL (name, nr, args); \
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (resultvar), 0)) \
{ \
__set_errno (INTERNAL_SYSCALL_ERRNO (resultvar)); \
resultvar = (unsigned long) -1; \
} \
(long) resultvar; })
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, nr, args...) \
({ \
unsigned long resultvar; \
LOAD_ARGS_##nr (args) \
@ -193,13 +204,14 @@
"syscall\n\t" \
: "=a" (resultvar) \
: "i" (__NR_##name) ASM_ARGS_##nr : "memory", "cc", "r11", "cx"); \
if (resultvar >= (unsigned long) -4095) \
{ \
__set_errno (-resultvar); \
resultvar = (unsigned long) -1; \
} \
(long) resultvar; })
#undef INTERNAL_SYSCALL_ERROR_P
#define INTERNAL_SYSCALL_ERROR_P(val) ((unsigned long) (val) >= -4095L)
#undef INTERNAL_SYSCALL_ERRNO
#define INTERNAL_SYSCALL_ERRNO(val) (-(val))
#define LOAD_ARGS_0()
#define ASM_ARGS_0