1 files changed, 49 insertions, 0 deletions

diff --git a/recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.18/0047-arch-tile-apply-commit-74fca9da0-to-the-compat-signa.patch b/recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.18/0047-arch-tile-apply-commit-74fca9da0-to-the-compat-signa.patch
new file mode 100644
index 00000000..2b95a674
--- /dev/null
+++ b/recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.18/0047-arch-tile-apply-commit-74fca9da0-to-the-compat-signa.patch
@@ -0,0 +1,49 @@
+From 4fb637e8e8bd6149d99d92389a104494bb234540 Mon Sep 17 00:00:00 2001
+From: Chris Metcalf <cmetcalf@tilera.com>
+Date: Wed, 16 May 2012 14:54:20 -0400
+Subject: [PATCH 47/56] arch/tile: apply commit 74fca9da0 to the compat signal
+ handling as well
+
+commit a134d228298c6aa9007205c6b81cae0cac0acb5d upstream.
+
+This passes siginfo and mcontext to tilegx32 signal handlers that
+don't have SA_SIGINFO set just as we have been doing for tilegx64.
+
+Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
+Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
+---
+ arch/tile/kernel/compat_signal.c |   12 +++++-------
+ 1 files changed, 5 insertions(+), 7 deletions(-)
+
+diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
+index a7869ad..41459d8 100644
+--- a/arch/tile/kernel/compat_signal.c
++++ b/arch/tile/kernel/compat_signal.c
+@@ -406,19 +406,17 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+         * Set up registers for signal handler.
+         * Registers that we don't modify keep the value they had from
+         * user-space at the time we took the signal.
++        * We always pass siginfo and mcontext, regardless of SA_SIGINFO,
++        * since some things rely on this (e.g. glibc's debug/segfault.c).
+         */
+        regs->pc = ptr_to_compat_reg(ka->sa.sa_handler);
+        regs->ex1 = PL_ICS_EX1(USER_PL, 1); /* set crit sec in handler */
+        regs->sp = ptr_to_compat_reg(frame);
+        regs->lr = restorer;
+        regs->regs[0] = (unsigned long) usig;
+-
+-       if (ka->sa.sa_flags & SA_SIGINFO) {
+-               /* Need extra arguments, so mark to restore caller-saves. */
+-               regs->regs[1] = ptr_to_compat_reg(&frame->info);
+-               regs->regs[2] = ptr_to_compat_reg(&frame->uc);
+-               regs->flags |= PT_FLAGS_CALLER_SAVES;
+-       }
++       regs->regs[1] = ptr_to_compat_reg(&frame->info);
++       regs->regs[2] = ptr_to_compat_reg(&frame->uc);
++       regs->flags |= PT_FLAGS_CALLER_SAVES;
+ 
+        /*
+         * Notify any tracer that was single-stepping it.
+-- 
+1.7.7.6
+