diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-19 22:11:09 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-19 22:11:09 (GMT) |
| commit | d471ce53b1fab60110e4e9f647a345cea31752de (patch) | |
| tree | 73acb87c823b63d026f9ba4617b5e112835d6abf /arch/um/os-Linux/skas/process.c | |
| parent | 1b050180454dc226780f765a33575d4cd8d6e552 (diff) | |
| parent | 9e82d450531c79b18ab18c9b9645cdd9db31ee98 (diff) | |
| download | linux-fsl-qoriq-d471ce53b1fab60110e4e9f647a345cea31752de.tar.xz | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML fixes from Richard Weinberger:
"Special thanks goes to Toralf Föster for continuously testing UML and
reporting issues!"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: remove dead code
um: siginfo cleanup
uml: Fix which_tmpdir failure when /dev/shm is a symlink, and in other edge cases
um: Fix wait_stub_done() error handling
um: Mark stub pages mapping with VM_PFNMAP
um: Fix return value of strnlen_user()
Diffstat (limited to 'arch/um/os-Linux/skas/process.c')
| -rw-r--r-- | arch/um/os-Linux/skas/process.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 4625949..d531879 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -54,7 +54,7 @@ static int ptrace_dump_regs(int pid) void wait_stub_done(int pid) { - int n, status, err; + int n, status, err, bad_stop = 0; while (1) { CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED | __WALL)); @@ -74,6 +74,8 @@ void wait_stub_done(int pid) if (((1 << WSTOPSIG(status)) & STUB_DONE_MASK) != 0) return; + else + bad_stop = 1; bad_wait: err = ptrace_dump_regs(pid); @@ -83,7 +85,10 @@ bad_wait: printk(UM_KERN_ERR "wait_stub_done : failed to wait for SIGTRAP, " "pid = %d, n = %d, errno = %d, status = 0x%x\n", pid, n, errno, status); - fatal_sigsegv(); + if (bad_stop) + kill(pid, SIGKILL); + else + fatal_sigsegv(); } extern unsigned long current_stub_stack(void); @@ -409,7 +414,7 @@ void userspace(struct uml_pt_regs *regs) if (WIFSTOPPED(status)) { int sig = WSTOPSIG(status); - ptrace(PTRACE_GETSIGINFO, pid, 0, &si); + ptrace(PTRACE_GETSIGINFO, pid, 0, (struct siginfo *)&si); switch (sig) { case SIGSEGV: @@ -417,7 +422,7 @@ void userspace(struct uml_pt_regs *regs) !ptrace_faultinfo) { get_skas_faultinfo(pid, ®s->faultinfo); - (*sig_info[SIGSEGV])(SIGSEGV, &si, + (*sig_info[SIGSEGV])(SIGSEGV, (struct siginfo *)&si, regs); } else handle_segv(pid, regs); @@ -426,14 +431,14 @@ void userspace(struct uml_pt_regs *regs) handle_trap(pid, regs, local_using_sysemu); break; case SIGTRAP: - relay_signal(SIGTRAP, &si, regs); + relay_signal(SIGTRAP, (struct siginfo *)&si, regs); break; case SIGVTALRM: now = os_nsecs(); if (now < nsecs) break; block_signals(); - (*sig_info[sig])(sig, &si, regs); + (*sig_info[sig])(sig, (struct siginfo *)&si, regs); unblock_signals(); nsecs = timer.it_value.tv_sec * UM_NSEC_PER_SEC + @@ -447,7 +452,7 @@ void userspace(struct uml_pt_regs *regs) case SIGFPE: case SIGWINCH: block_signals(); - (*sig_info[sig])(sig, &si, regs); + (*sig_info[sig])(sig, (struct siginfo *)&si, regs); unblock_signals(); break; default: |