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* Re: c++/8029: g++ produces ICE on kernel asm implementations of string functions
@ 2002-11-24 14:22 bangerth
0 siblings, 0 replies; 2+ messages in thread
From: bangerth @ 2002-11-24 14:22 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, kirill, nobody, zautner
Synopsis: g++ produces ICE on kernel asm implementations of string functions
State-Changed-From-To: open->closed
State-Changed-By: bangerth
State-Changed-When: Mon Nov 18 15:17:43 2002
State-Changed-Why:
This has already been fixed in gcc3.0
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8029
^ permalink raw reply [flat|nested] 2+ messages in thread
* c++/8029: g++ produces ICE on kernel asm implementations of string functions
@ 2002-09-25 2:06 kirill
0 siblings, 0 replies; 2+ messages in thread
From: kirill @ 2002-09-25 2:06 UTC (permalink / raw)
To: gcc-gnats; +Cc: zautner
>Number: 8029
>Category: c++
>Synopsis: g++ produces ICE on kernel asm implementations of string functions
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: ice-on-legal-code
>Submitter-Id: net
>Arrival-Date: Wed Sep 25 02:06:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Kirill Shoikhet
>Release: gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-110)
>Organization:
>Environment:
RedHat 7.2 or 7.3
>Description:
main.cpp: In function `int main ()':
main.cpp:5: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:http://bugzilla.redhat.com/bugzilla/> for instructions.
>How-To-Repeat:
The main.ii file produced by the following command which produces the above error
g++ -c -D__KERNEL__ -I /usr/src/linux/include main.c -save-temps
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="main.ii"
Content-Disposition: inline; filename="main.ii"
# 1 "main.c"
# 1 "/usr/src/linux/include/linux/string.h" 1
# 1 "/usr/src/linux/include/linux/types.h" 1
# 1 "/usr/src/linux/include/linux/config.h" 1
# 1 "/usr/src/linux/include/linux/autoconf.h" 1
# 1 "/usr/src/linux/include/linux/rhconfig.h" 1
# 13 "/usr/src/linux/include/linux/rhconfig.h"
# 1 "/boot/kernel.h" 1
# 14 "/usr/src/linux/include/linux/rhconfig.h" 2
# 2 "/usr/src/linux/include/linux/autoconf.h" 2
# 5 "/usr/src/linux/include/linux/config.h" 2
# 6 "/usr/src/linux/include/linux/types.h" 2
# 1 "/usr/src/linux/include/linux/posix_types.h" 1
# 1 "/usr/src/linux/include/linux/stddef.h" 1
# 5 "/usr/src/linux/include/linux/posix_types.h" 2
# 36 "/usr/src/linux/include/linux/posix_types.h"
typedef struct {
unsigned long fds_bits [(1024/(8 * sizeof(unsigned long)))];
} __kernel_fd_set;
typedef void (*__kernel_sighandler_t)(int);
typedef int __kernel_key_t;
# 1 "/usr/src/linux/include/asm/posix_types.h" 1
# 10 "/usr/src/linux/include/asm/posix_types.h"
typedef unsigned short __kernel_dev_t;
typedef unsigned long __kernel_ino_t;
typedef unsigned short __kernel_mode_t;
typedef unsigned short __kernel_nlink_t;
typedef long __kernel_off_t;
typedef int __kernel_pid_t;
typedef unsigned short __kernel_ipc_pid_t;
typedef unsigned short __kernel_uid_t;
typedef unsigned short __kernel_gid_t;
typedef unsigned int __kernel_size_t;
typedef int __kernel_ssize_t;
typedef int __kernel_ptrdiff_t;
typedef long __kernel_time_t;
typedef long __kernel_suseconds_t;
typedef long __kernel_clock_t;
typedef int __kernel_daddr_t;
typedef char * __kernel_caddr_t;
typedef unsigned short __kernel_uid16_t;
typedef unsigned short __kernel_gid16_t;
typedef unsigned int __kernel_uid32_t;
typedef unsigned int __kernel_gid32_t;
typedef unsigned short __kernel_old_uid_t;
typedef unsigned short __kernel_old_gid_t;
typedef long long __kernel_loff_t;
typedef struct {
int val[2];
} __kernel_fsid_t;
# 47 "/usr/src/linux/include/linux/posix_types.h" 2
# 9 "/usr/src/linux/include/linux/types.h" 2
# 1 "/usr/src/linux/include/asm/types.h" 1
typedef unsigned short umode_t;
typedef __signed__ char __s8;
typedef unsigned char __u8;
typedef __signed__ short __s16;
typedef unsigned short __u16;
typedef __signed__ int __s32;
typedef unsigned int __u32;
typedef __signed__ long long __s64;
typedef unsigned long long __u64;
typedef signed char s8;
typedef unsigned char u8;
typedef signed short s16;
typedef unsigned short u16;
typedef signed int s32;
typedef unsigned int u32;
typedef signed long long s64;
typedef unsigned long long u64;
typedef u32 dma_addr_t;
# 10 "/usr/src/linux/include/linux/types.h" 2
typedef __kernel_fd_set fd_set;
typedef __kernel_dev_t dev_t;
typedef __kernel_ino_t ino_t;
typedef __kernel_mode_t mode_t;
typedef __kernel_nlink_t nlink_t;
typedef __kernel_off_t off_t;
typedef __kernel_pid_t pid_t;
typedef __kernel_daddr_t daddr_t;
typedef __kernel_key_t key_t;
typedef __kernel_suseconds_t suseconds_t;
typedef __kernel_uid32_t uid_t;
typedef __kernel_gid32_t gid_t;
typedef __kernel_uid16_t uid16_t;
typedef __kernel_gid16_t gid16_t;
typedef __kernel_old_uid_t old_uid_t;
typedef __kernel_old_gid_t old_gid_t;
# 45 "/usr/src/linux/include/linux/types.h"
typedef __kernel_loff_t loff_t;
# 54 "/usr/src/linux/include/linux/types.h"
typedef __kernel_size_t size_t;
typedef __kernel_ssize_t ssize_t;
typedef __kernel_ptrdiff_t ptrdiff_t;
typedef __kernel_time_t time_t;
typedef __kernel_clock_t clock_t;
typedef __kernel_caddr_t caddr_t;
typedef unsigned char u_char;
typedef unsigned short u_short;
typedef unsigned int u_int;
typedef unsigned long u_long;
typedef unsigned char unchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef __u8 u_int8_t;
typedef __s8 int8_t;
typedef __u16 u_int16_t;
typedef __s16 int16_t;
typedef __u32 u_int32_t;
typedef __s32 int32_t;
typedef __u8 uint8_t;
typedef __u16 uint16_t;
typedef __u32 uint32_t;
typedef __u64 uint64_t;
typedef __u64 u_int64_t;
typedef __s64 int64_t;
# 123 "/usr/src/linux/include/linux/types.h"
struct ustat {
__kernel_daddr_t f_tfree;
__kernel_ino_t f_tinode;
char f_fname[6];
char f_fpack[6];
};
# 9 "/usr/src/linux/include/linux/string.h" 2
# 1 "/usr/src/linux/include/linux/stddef.h" 1
# 10 "/usr/src/linux/include/linux/string.h" 2
extern "C" {
extern char * ___strtok;
extern char * strpbrk(const char *,const char *);
extern char * strtok(char *,const char *);
extern char * strsep(char **,const char *);
extern __kernel_size_t strspn(const char *,const char *);
# 1 "/usr/src/linux/include/asm/string.h" 1
# 1 "/usr/src/linux/include/linux/config.h" 1
# 6 "/usr/src/linux/include/asm/string.h" 2
# 33 "/usr/src/linux/include/asm/string.h"
static inline char * strcpy(char * dest,const char *src)
{
int d0, d1, d2;
__asm__ __volatile__(
"1:\tlodsb\n\t"
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b"
: "=&S" (d0), "=&D" (d1), "=&a" (d2)
:"0" (src),"1" (dest) : "memory");
return dest;
}
static inline char * strncpy(char * dest,const char *src,size_t count)
{
int d0, d1, d2, d3;
__asm__ __volatile__(
"1:\tdecl %2\n\t"
"js 2f\n\t"
"lodsb\n\t"
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b\n\t"
"rep\n\t"
"stosb\n"
"2:"
: "=&S" (d0), "=&D" (d1), "=&c" (d2), "=&a" (d3)
:"0" (src),"1" (dest),"2" (count) : "memory");
return dest;
}
static inline char * strcat(char * dest,const char * src)
{
int d0, d1, d2, d3;
__asm__ __volatile__(
"repne\n\t"
"scasb\n\t"
"decl %1\n"
"1:\tlodsb\n\t"
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b"
: "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
: "0" (src), "1" (dest), "2" (0), "3" (0xffffffff):"memory");
return dest;
}
static inline char * strncat(char * dest,const char * src,size_t count)
{
int d0, d1, d2, d3;
__asm__ __volatile__(
"repne\n\t"
"scasb\n\t"
"decl %1\n\t"
"movl %8,%3\n"
"1:\tdecl %3\n\t"
"js 2f\n\t"
"lodsb\n\t"
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b\n"
"2:\txorl %2,%2\n\t"
"stosb"
: "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
: "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
: "memory");
return dest;
}
static inline int strcmp(const char * cs,const char * ct)
{
int d0, d1;
register int __res;
__asm__ __volatile__(
"1:\tlodsb\n\t"
"scasb\n\t"
"jne 2f\n\t"
"testb %%al,%%al\n\t"
"jne 1b\n\t"
"xorl %%eax,%%eax\n\t"
"jmp 3f\n"
"2:\tsbbl %%eax,%%eax\n\t"
"orb $1,%%al\n"
"3:"
:"=a" (__res), "=&S" (d0), "=&D" (d1)
:"1" (cs),"2" (ct));
return __res;
}
static inline int strncmp(const char * cs,const char * ct,size_t count)
{
register int __res;
int d0, d1, d2;
__asm__ __volatile__(
"1:\tdecl %3\n\t"
"js 2f\n\t"
"lodsb\n\t"
"scasb\n\t"
"jne 3f\n\t"
"testb %%al,%%al\n\t"
"jne 1b\n"
"2:\txorl %%eax,%%eax\n\t"
"jmp 4f\n"
"3:\tsbbl %%eax,%%eax\n\t"
"orb $1,%%al\n"
"4:"
:"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
:"1" (cs),"2" (ct),"3" (count));
return __res;
}
static inline char * strchr(const char * s, int c)
{
int d0;
register char * __res;
__asm__ __volatile__(
"movb %%al,%%ah\n"
"1:\tlodsb\n\t"
"cmpb %%ah,%%al\n\t"
"je 2f\n\t"
"testb %%al,%%al\n\t"
"jne 1b\n\t"
"movl $1,%1\n"
"2:\tmovl %1,%0\n\t"
"decl %0"
:"=a" (__res), "=&S" (d0) : "1" (s),"0" (c));
return __res;
}
static inline char * strrchr(const char * s, int c)
{
int d0, d1;
register char * __res;
__asm__ __volatile__(
"movb %%al,%%ah\n"
"1:\tlodsb\n\t"
"cmpb %%ah,%%al\n\t"
"jne 2f\n\t"
"leal -1(%%esi),%0\n"
"2:\ttestb %%al,%%al\n\t"
"jne 1b"
:"=g" (__res), "=&S" (d0), "=&a" (d1) :"0" (0),"1" (s),"2" (c));
return __res;
}
static inline size_t strlen(const char * s)
{
int d0;
register int __res;
__asm__ __volatile__(
"repne\n\t"
"scasb\n\t"
"notl %0\n\t"
"decl %0"
:"=c" (__res), "=&D" (d0) :"1" (s),"a" (0), "0" (0xffffffff));
return __res;
}
static inline void * __memcpy(void * to, const void * from, size_t n)
{
int d0, d1, d2;
__asm__ __volatile__(
"rep ; movsl\n\t"
"testb $2,%b4\n\t"
"je 1f\n\t"
"movsw\n"
"1:\ttestb $1,%b4\n\t"
"je 2f\n\t"
"movsb\n"
"2:"
: "=&c" (d0), "=&D" (d1), "=&S" (d2)
:"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
: "memory");
return (to);
}
static inline void * __constant_memcpy(void * to, const void * from, size_t n)
{
switch (n) {
case 0:
return to;
case 1:
*(unsigned char *)to = *(const unsigned char *)from;
return to;
case 2:
*(unsigned short *)to = *(const unsigned short *)from;
return to;
case 3:
*(unsigned short *)to = *(const unsigned short *)from;
*(2+(unsigned char *)to) = *(2+(const unsigned char *)from);
return to;
case 4:
*(unsigned long *)to = *(const unsigned long *)from;
return to;
case 6:
*(unsigned long *)to = *(const unsigned long *)from;
*(2+(unsigned short *)to) = *(2+(const unsigned short *)from);
return to;
case 8:
*(unsigned long *)to = *(const unsigned long *)from;
*(1+(unsigned long *)to) = *(1+(const unsigned long *)from);
return to;
case 12:
*(unsigned long *)to = *(const unsigned long *)from;
*(1+(unsigned long *)to) = *(1+(const unsigned long *)from);
*(2+(unsigned long *)to) = *(2+(const unsigned long *)from);
return to;
case 16:
*(unsigned long *)to = *(const unsigned long *)from;
*(1+(unsigned long *)to) = *(1+(const unsigned long *)from);
*(2+(unsigned long *)to) = *(2+(const unsigned long *)from);
*(3+(unsigned long *)to) = *(3+(const unsigned long *)from);
return to;
case 20:
*(unsigned long *)to = *(const unsigned long *)from;
*(1+(unsigned long *)to) = *(1+(const unsigned long *)from);
*(2+(unsigned long *)to) = *(2+(const unsigned long *)from);
*(3+(unsigned long *)to) = *(3+(const unsigned long *)from);
*(4+(unsigned long *)to) = *(4+(const unsigned long *)from);
return to;
}
{
int d0, d1, d2;
switch (n % 4) {
case 0: __asm__ __volatile__( "rep ; movsl" "" : "=&c" (d0), "=&D" (d1), "=&S" (d2) : "0" (n/4),"1" ((long) to),"2" ((long) from) : "memory");; return to;
case 1: __asm__ __volatile__( "rep ; movsl" "\n\tmovsb" : "=&c" (d0), "=&D" (d1), "=&S" (d2) : "0" (n/4),"1" ((long) to),"2" ((long) from) : "memory");; return to;
case 2: __asm__ __volatile__( "rep ; movsl" "\n\tmovsw" : "=&c" (d0), "=&D" (d1), "=&S" (d2) : "0" (n/4),"1" ((long) to),"2" ((long) from) : "memory");; return to;
default: __asm__ __volatile__( "rep ; movsl" "\n\tmovsw\n\tmovsb" : "=&c" (d0), "=&D" (d1), "=&S" (d2) : "0" (n/4),"1" ((long) to),"2" ((long) from) : "memory");; return to;
}
}
}
# 335 "/usr/src/linux/include/asm/string.h"
extern void __struct_cpy_bug (void);
# 345 "/usr/src/linux/include/asm/string.h"
static inline void * memmove(void * dest,const void * src, size_t n)
{
int d0, d1, d2;
if (dest<src)
__asm__ __volatile__(
"rep\n\t"
"movsb"
: "=&c" (d0), "=&S" (d1), "=&D" (d2)
:"0" (n),"1" (src),"2" (dest)
: "memory");
else
__asm__ __volatile__(
"std\n\t"
"rep\n\t"
"movsb\n\t"
"cld"
: "=&c" (d0), "=&S" (d1), "=&D" (d2)
:"0" (n),
"1" (n-1+(const char *)src),
"2" (n-1+(char *)dest)
:"memory");
return dest;
}
static inline void * memchr(const void * cs,int c,size_t count)
{
int d0;
register void * __res;
if (!count)
return 0;
__asm__ __volatile__(
"repne\n\t"
"scasb\n\t"
"je 1f\n\t"
"movl $1,%0\n"
"1:\tdecl %0"
:"=D" (__res), "=&c" (d0) : "a" (c),"0" (cs),"1" (count));
return __res;
}
static inline void * __memset_generic(void * s, char c,size_t count)
{
int d0, d1;
__asm__ __volatile__(
"rep\n\t"
"stosb"
: "=&c" (d0), "=&D" (d1)
:"a" (c),"1" (s),"0" (count)
:"memory");
return s;
}
# 408 "/usr/src/linux/include/asm/string.h"
static inline void * __constant_c_memset(void * s, unsigned long c, size_t count)
{
int d0, d1;
__asm__ __volatile__(
"rep ; stosl\n\t"
"testb $2,%b3\n\t"
"je 1f\n\t"
"stosw\n"
"1:\ttestb $1,%b3\n\t"
"je 2f\n\t"
"stosb\n"
"2:"
: "=&c" (d0), "=&D" (d1)
:"a" (c), "q" (count), "0" (count/4), "1" ((long) s)
:"memory");
return (s);
}
static inline size_t strnlen(const char * s, size_t count)
{
int d0;
register int __res;
__asm__ __volatile__(
"movl %2,%0\n\t"
"jmp 2f\n"
"1:\tcmpb $0,(%0)\n\t"
"je 3f\n\t"
"incl %0\n"
"2:\tdecl %1\n\t"
"cmpl $-1,%1\n\t"
"jne 1b\n"
"3:\tsubl %2,%0"
:"=a" (__res), "=&d" (d0)
:"c" (s),"1" (count));
return __res;
}
extern char *strstr(const char *cs, const char *ct);
static inline void * __constant_c_and_count_memset(void * s, unsigned long pattern, size_t count)
{
switch (count) {
case 0:
return s;
case 1:
*(unsigned char *)s = pattern;
return s;
case 2:
*(unsigned short *)s = pattern;
return s;
case 3:
*(unsigned short *)s = pattern;
*(2+(unsigned char *)s) = pattern;
return s;
case 4:
*(unsigned long *)s = pattern;
return s;
}
{
int d0, d1;
switch (count % 4) {
case 0: __asm__ __volatile__( "rep ; stosl" "" : "=&c" (d0), "=&D" (d1) : "a" (pattern),"0" (count/4),"1" ((long) s) : "memory"); return s;
case 1: __asm__ __volatile__( "rep ; stosl" "\n\tstosb" : "=&c" (d0), "=&D" (d1) : "a" (pattern),"0" (count/4),"1" ((long) s) : "memory"); return s;
case 2: __asm__ __volatile__( "rep ; stosl" "\n\tstosw" : "=&c" (d0), "=&D" (d1) : "a" (pattern),"0" (count/4),"1" ((long) s) : "memory"); return s;
default: __asm__ __volatile__( "rep ; stosl" "\n\tstosw\n\tstosb" : "=&c" (d0), "=&D" (d1) : "a" (pattern),"0" (count/4),"1" ((long) s) : "memory"); return s;
}
}
}
# 515 "/usr/src/linux/include/asm/string.h"
static inline void * memscan(void * addr, int c, size_t size)
{
if (!size)
return addr;
__asm__("repnz; scasb\n\t"
"jnz 1f\n\t"
"dec %%edi\n"
"1:"
: "=D" (addr), "=c" (size)
: "0" (addr), "1" (size), "a" (c));
return addr;
}
# 28 "/usr/src/linux/include/linux/string.h" 2
# 48 "/usr/src/linux/include/linux/string.h"
extern int strnicmp(const char *, const char *, __kernel_size_t);
# 79 "/usr/src/linux/include/linux/string.h"
extern int __builtin_memcmp(const void *,const void *,__kernel_size_t);
}
# 2 "main.c" 2
int main()
{
int kuku = strlen("kjfdjhg");
return kuku;
}
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2002-11-18 23:17 UTC | newest]
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2002-11-24 14:22 c++/8029: g++ produces ICE on kernel asm implementations of string functions bangerth
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2002-09-25 2:06 kirill
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