Auto merge of #1443 - androm3da:hexagon_27jul_2019, r=gnzlbg

Add support for hexagon-unknown-linux-musl

Author: bors

ci/build.sh

@@ -186,6 +186,7 @@ armebv7r-none-eabihf \
 armv7-unknown-cloudabi-eabihf \
 armv7r-none-eabi \
 armv7r-none-eabihf \
+hexagon-unknown-linux-musl \
 i586-pc-windows-msvc \
 i686-pc-windows-msvc \
 i686-unknown-cloudabi \

src/unix/linux_like/linux/align.rs

@@ -60,13 +60,15 @@ macro_rules! expand_align {
             #[cfg_attr(all(target_pointer_width = "32",
                            any(target_arch = "mips",
                                target_arch = "arm",
+                               target_arch = "hexagon",
                                target_arch = "powerpc",
                                target_arch = "x86_64",
                                target_arch = "x86")),
                        repr(align(4)))]
             #[cfg_attr(any(target_pointer_width = "64",
                            not(any(target_arch = "mips",
                                    target_arch = "arm",
+                                   target_arch = "hexagon",
                                    target_arch = "powerpc",
                                    target_arch = "x86_64",
                                    target_arch = "x86"))),
@@ -79,13 +81,15 @@ macro_rules! expand_align {
             #[cfg_attr(all(target_pointer_width = "32",
                            any(target_arch = "mips",
                                target_arch = "arm",
+                               target_arch = "hexagon",
                                target_arch = "powerpc",
                                target_arch = "x86_64",
                                target_arch = "x86")),
                        repr(align(4)))]
             #[cfg_attr(any(target_pointer_width = "64",
                            not(any(target_arch = "mips",
                                    target_arch = "arm",
+                                   target_arch = "hexagon",
                                    target_arch = "powerpc",
                                    target_arch = "x86_64",
                                    target_arch = "x86"))),