leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

signal: unify compat_siginfo_t

Browse Source 
--EWB Added #ifdef CONFIG_X86_X32_ABI to arch/x86/kernel/signal_compat.c
      Changed #ifdef CONFIG_X86_X32 to #ifdef CONFIG_X86_X32_ABI in
      linux/compat.h

      CONFIG_X86_X32 is set when the user requests X32 support.

      CONFIG_X86_X32_ABI is set when the user requests X32 support
      and the tool-chain has X32 allowing X32 support to be built.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Al Viro
2017-07-09 15:53:17 -04:00
committed by Eric W. Biederman
parent 4795477b23
commit b713da69e4
10 changed files with 94 additions and 525 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/x86/kernel/signal_compat.c
View File

@@ -75,9 +75,11 @@ static inline void signal_compat_build_tests(void)
CHECK_CSI_SIZE (_sigchld, 5*sizeof(int));
CHECK_SI_SIZE (_sigchld, 8*sizeof(int));
#ifdef CONFIG_X86_X32_ABI
CHECK_CSI_OFFSET(_sigchld_x32);
CHECK_CSI_SIZE (_sigchld_x32, 7*sizeof(int));
/* no _sigchld_x32 in the generic siginfo_t */
#endif
CHECK_CSI_OFFSET(_sigfault);
CHECK_CSI_SIZE (_sigfault, 4*sizeof(int));
@@ -169,9 +171,11 @@ int __copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from,
if (!x32_ABI) {
put_user_ex(from->si_utime, &to->si_utime);
put_user_ex(from->si_stime, &to->si_stime);
#ifdef CONFIG_X86_X32_ABI
} else {
put_user_ex(from->si_utime, &to->_sifields._sigchld_x32._utime);
put_user_ex(from->si_stime, &to->_sifields._sigchld_x32._stime);
#endif
}
put_user_ex(from->si_status, &to->si_status);
/* FALL THROUGH */