diff options
Diffstat (limited to 'target/linux/goldfish/patches-2.6.30/0060--ARM-Add-code-to-prevent-system-calls-from-being-re.patch')
| -rw-r--r-- | target/linux/goldfish/patches-2.6.30/0060--ARM-Add-code-to-prevent-system-calls-from-being-re.patch | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/target/linux/goldfish/patches-2.6.30/0060--ARM-Add-code-to-prevent-system-calls-from-being-re.patch b/target/linux/goldfish/patches-2.6.30/0060--ARM-Add-code-to-prevent-system-calls-from-being-re.patch deleted file mode 100644 index 8966616151..0000000000 --- a/target/linux/goldfish/patches-2.6.30/0060--ARM-Add-code-to-prevent-system-calls-from-being-re.patch +++ /dev/null @@ -1,35 +0,0 @@ -From d52bcb0a807dde87057f330dbe95aa6d221a4b85 Mon Sep 17 00:00:00 2001 -From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> -Date: Mon, 9 Apr 2007 17:13:02 +0700 -Subject: [PATCH 060/134] [ARM] Add code to prevent system calls from being restarted muliple times before returning from the kernel. - -Fixes crashes with thumb syscalls. ---- - arch/arm/kernel/signal.c | 9 +++++++++ - 1 files changed, 9 insertions(+), 0 deletions(-) - ---- a/arch/arm/kernel/signal.c -+++ b/arch/arm/kernel/signal.c -@@ -499,6 +499,14 @@ setup_rt_frame(int usig, struct k_sigact - - static inline void restart_syscall(struct pt_regs *regs) - { -+ if (regs->ARM_ORIG_r0 == -ERESTARTNOHAND || -+ regs->ARM_ORIG_r0 == -ERESTARTSYS || -+ regs->ARM_ORIG_r0 == -ERESTARTNOINTR || -+ regs->ARM_ORIG_r0 == -ERESTART_RESTARTBLOCK) { -+ /* the syscall cannot be safely restarted, return -EINTR instead */ -+ regs->ARM_r0 = -EINTR; -+ return; -+ } - regs->ARM_r0 = regs->ARM_ORIG_r0; - regs->ARM_pc -= thumb_mode(regs) ? 2 : 4; - } -@@ -631,6 +639,7 @@ static void do_signal(struct pt_regs *re - */ - if (syscall) { - if (regs->ARM_r0 == -ERESTART_RESTARTBLOCK) { -+ regs->ARM_r0 = -EAGAIN; /* prevent multiple restarts */ - if (thumb_mode(regs)) { - regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE; - regs->ARM_pc -= 2; |