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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
commit8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch)
treee9891aa6c295060d065adffd610c4f49ecf884f3 /arch/x86/ia32/ia32_signal.c
parenta71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff)
Linux-libre 4.3.2-gnu
Diffstat (limited to 'arch/x86/ia32/ia32_signal.c')
-rw-r--r--arch/x86/ia32/ia32_signal.c93
1 files changed, 0 insertions, 93 deletions
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index ae3a29ae8..a0a19b7ba 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -34,99 +34,6 @@
#include <asm/sys_ia32.h>
#include <asm/smap.h>
-int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
-{
- int err = 0;
- bool ia32 = test_thread_flag(TIF_IA32);
-
- if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
- return -EFAULT;
-
- put_user_try {
- /* If you change siginfo_t structure, please make sure that
- this code is fixed accordingly.
- It should never copy any pad contained in the structure
- to avoid security leaks, but must copy the generic
- 3 ints plus the relevant union member. */
- put_user_ex(from->si_signo, &to->si_signo);
- put_user_ex(from->si_errno, &to->si_errno);
- put_user_ex((short)from->si_code, &to->si_code);
-
- if (from->si_code < 0) {
- put_user_ex(from->si_pid, &to->si_pid);
- put_user_ex(from->si_uid, &to->si_uid);
- put_user_ex(ptr_to_compat(from->si_ptr), &to->si_ptr);
- } else {
- /*
- * First 32bits of unions are always present:
- * si_pid === si_band === si_tid === si_addr(LS half)
- */
- put_user_ex(from->_sifields._pad[0],
- &to->_sifields._pad[0]);
- switch (from->si_code >> 16) {
- case __SI_FAULT >> 16:
- break;
- case __SI_SYS >> 16:
- put_user_ex(from->si_syscall, &to->si_syscall);
- put_user_ex(from->si_arch, &to->si_arch);
- break;
- case __SI_CHLD >> 16:
- if (ia32) {
- put_user_ex(from->si_utime, &to->si_utime);
- put_user_ex(from->si_stime, &to->si_stime);
- } else {
- put_user_ex(from->si_utime, &to->_sifields._sigchld_x32._utime);
- put_user_ex(from->si_stime, &to->_sifields._sigchld_x32._stime);
- }
- put_user_ex(from->si_status, &to->si_status);
- /* FALL THROUGH */
- default:
- case __SI_KILL >> 16:
- put_user_ex(from->si_uid, &to->si_uid);
- break;
- case __SI_POLL >> 16:
- put_user_ex(from->si_fd, &to->si_fd);
- break;
- case __SI_TIMER >> 16:
- put_user_ex(from->si_overrun, &to->si_overrun);
- put_user_ex(ptr_to_compat(from->si_ptr),
- &to->si_ptr);
- break;
- /* This is not generated by the kernel as of now. */
- case __SI_RT >> 16:
- case __SI_MESGQ >> 16:
- put_user_ex(from->si_uid, &to->si_uid);
- put_user_ex(from->si_int, &to->si_int);
- break;
- }
- }
- } put_user_catch(err);
-
- return err;
-}
-
-int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
-{
- int err = 0;
- u32 ptr32;
-
- if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t)))
- return -EFAULT;
-
- get_user_try {
- get_user_ex(to->si_signo, &from->si_signo);
- get_user_ex(to->si_errno, &from->si_errno);
- get_user_ex(to->si_code, &from->si_code);
-
- get_user_ex(to->si_pid, &from->si_pid);
- get_user_ex(to->si_uid, &from->si_uid);
- get_user_ex(ptr32, &from->si_ptr);
- to->si_ptr = compat_ptr(ptr32);
- } get_user_catch(err);
-
- return err;
-}
-
/*
* Do a signal return; undo the signal stack.
*/