* [Qemu-devel] [PATCH] fix exit syscall
@ 2008-10-15 22:12 Lauro Ramos Venancio
0 siblings, 0 replies; 2+ messages in thread
From: Lauro Ramos Venancio @ 2008-10-15 22:12 UTC (permalink / raw)
To: qemu-devel
[-- Attachment #1.1: Type: text/plain, Size: 199 bytes --]
We can't call the libc _exit function because it calls the exit_group
host syscall. We must call directly the exit host syscall.
--
Lauro Ramos Venancio
INdT - Instituto Nokia de Tecnologia
[-- Attachment #1.2: fix_exit_syscall.patch --]
[-- Type: text/x-patch, Size: 1002 bytes --]
Index: qemu-arm-eabi/linux-user/syscall.c
===================================================================
--- qemu-arm-eabi.orig/linux-user/syscall.c 2008-10-13 18:06:03.000000000 -0300
+++ qemu-arm-eabi/linux-user/syscall.c 2008-10-13 18:56:02.000000000 -0300
@@ -154,6 +154,7 @@
}
+#define __NR_sys_exit __NR_exit
#define __NR_sys_uname __NR_uname
#define __NR_sys_faccessat __NR_faccessat
#define __NR_sys_fchmodat __NR_fchmodat
@@ -195,6 +196,7 @@
return -ENOSYS;
}
#endif
+_syscall1(int,sys_exit,int,status)
_syscall1(int,sys_uname,struct new_utsname *,buf)
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
_syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags)
@@ -3756,7 +3758,7 @@
#endif
gdb_exit(cpu_env, arg1);
/* XXX: should free thread stack and CPU env */
- _exit(arg1);
+ sys_exit(arg1);
ret = 0; /* avoid warning */
break;
case TARGET_NR_read:
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 189 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread* [Qemu-devel] [PATCH] fix exit syscall
@ 2008-10-15 22:57 Lauro Ramos Venancio
0 siblings, 0 replies; 2+ messages in thread
From: Lauro Ramos Venancio @ 2008-10-15 22:57 UTC (permalink / raw)
To: qemu-devel
[-- Attachment #1.1: Type: text/plain, Size: 199 bytes --]
We can't call the libc _exit function because it calls the exit_group
host syscall. We must call directly the exit host syscall.
--
Lauro Ramos Venancio
INdT - Instituto Nokia de Tecnologia
[-- Attachment #1.2: fix_exit_syscall.patch --]
[-- Type: text/x-patch, Size: 1002 bytes --]
Index: qemu-arm-eabi/linux-user/syscall.c
===================================================================
--- qemu-arm-eabi.orig/linux-user/syscall.c 2008-10-13 18:06:03.000000000 -0300
+++ qemu-arm-eabi/linux-user/syscall.c 2008-10-13 18:56:02.000000000 -0300
@@ -154,6 +154,7 @@
}
+#define __NR_sys_exit __NR_exit
#define __NR_sys_uname __NR_uname
#define __NR_sys_faccessat __NR_faccessat
#define __NR_sys_fchmodat __NR_fchmodat
@@ -195,6 +196,7 @@
return -ENOSYS;
}
#endif
+_syscall1(int,sys_exit,int,status)
_syscall1(int,sys_uname,struct new_utsname *,buf)
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
_syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags)
@@ -3756,7 +3758,7 @@
#endif
gdb_exit(cpu_env, arg1);
/* XXX: should free thread stack and CPU env */
- _exit(arg1);
+ sys_exit(arg1);
ret = 0; /* avoid warning */
break;
case TARGET_NR_read:
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 189 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread
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