qbe: Update to latest git and tweak some patches

1 files changed, 33 insertions, 0 deletions

diff --git a/pkg/qbe/patch/0001-arm64-prevent-stack-clobber-when-passing-structures-.patch b/pkg/qbe/patch/0001-arm64-prevent-stack-clobber-when-passing-structures-.patch
new file mode 100644
index 00000000..ca21a84f
--- /dev/null
+++ b/pkg/qbe/patch/0001-arm64-prevent-stack-clobber-when-passing-structures-.patch
@@ -0,0 +1,33 @@
+From 6c1744026545445511f1c500653bab859bc79b50 Mon Sep 17 00:00:00 2001
+From: Michael Forney <mforney@mforney.org>
+Date: Sat, 11 May 2019 19:38:13 -0700
+Subject: [PATCH] arm64: prevent stack clobber when passing structures < 8
+ bytes
+
+---
+ arm64/abi.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/arm64/abi.c b/arm64/abi.c
+index 8209944..f37c892 100644
+--- a/arm64/abi.c
++++ b/arm64/abi.c
+@@ -312,12 +312,14 @@ stkblob(Ref r, Class *c, Fn *fn, Insl **ilp)
+ {
+ 	Insl *il;
+ 	int al;
++	uint64_t sz;
+ 
+ 	il = alloc(sizeof *il);
+ 	al = c->t->align - 2; /* NAlign == 3 */
+ 	if (al < 0)
+ 		al = 0;
+-	il->i = (Ins){Oalloc+al, Kl, r, {getcon(c->t->size, fn)}};
++	sz = c->class & Cptr ? c->t->size : c->size;
++	il->i = (Ins){Oalloc+al, Kl, r, {getcon(sz, fn)}};
+ 	il->link = *ilp;
+ 	*ilp = il;
+ }
+-- 
+2.32.0
+