treewide: isArm -> isAarch32

Following legacy packing conventions, `isArm` was defined just for
32-bit ARM instruction set. This is confusing to non packagers though,
because Aarch64 is an ARM instruction set.

The official ARM overview for ARMv8[1] is surprisingly not confusing,
given the overall state of affairs for ARM naming conventions, and
offers us a solution. It divides the nomenclature into three levels:

```
ISA:             ARMv8   {-A, -R, -M}
                 /    \
Mode:     Aarch32     Aarch64
             |         /   \
Encoding:   A64      A32   T32
```

At the top is the overall v8 instruction set archicture. Second are the
two modes, defined by bitwidth but differing in other semantics too, and
buttom are the encodings, (hopefully?) isomorphic if they encode the
same mode.

The 32 bit encodings are mostly backwards compatible with previous
non-Thumb and Thumb encodings, and if so we can pun the mode names to
instead mean "sets of compatable or isomorphic encodings", and then
voilà we have nice names for 32-bit and 64-bit arm instruction sets
which do not use the word ARM so as to not confused either laymen or
experienced ARM packages.

[1]: https://developer.arm.com/products/architecture/a-profile

(cherry picked from commit ba52ae50488de85a9cf60a3a04f1c9ca7122ec74)

7 files changed, 7 insertions, 7 deletions

diff --git a/pkgs/development/compilers/gcc/4.5/default.nix b/pkgs/development/compilers/gcc/4.5/default.nix
index c63867a1d2db..8cee08c09261 100644
--- a/pkgs/development/compilers/gcc/4.5/default.nix
+++ b/pkgs/development/compilers/gcc/4.5/default.nix
@@ -258,7 +258,7 @@ stdenv.mkDerivation ({
   # TODO(@Ericson2314): Always pass "--target" and always prefix.
   configurePlatforms =
     # TODO(@Ericson2314): Figure out what's going wrong with Arm
-    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isArm
+    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isAarch32
     then []
     else [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";
 
diff --git a/pkgs/development/compilers/gcc/4.8/default.nix b/pkgs/development/compilers/gcc/4.8/default.nix
index 36adfd075df2..c798a67de840 100644
--- a/pkgs/development/compilers/gcc/4.8/default.nix
+++ b/pkgs/development/compilers/gcc/4.8/default.nix
@@ -300,7 +300,7 @@ stdenv.mkDerivation ({
   # TODO(@Ericson2314): Always pass "--target" and always prefix.
   configurePlatforms =
     # TODO(@Ericson2314): Figure out what's going wrong with Arm
-    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isArm
+    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isAarch32
     then []
     else [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";
 
diff --git a/pkgs/development/compilers/gcc/4.9/default.nix b/pkgs/development/compilers/gcc/4.9/default.nix
index c436da678fd9..c729bbeb66f9 100644
--- a/pkgs/development/compilers/gcc/4.9/default.nix
+++ b/pkgs/development/compilers/gcc/4.9/default.nix
@@ -309,7 +309,7 @@ stdenv.mkDerivation ({
   # TODO(@Ericson2314): Always pass "--target" and always prefix.
   configurePlatforms =
     # TODO(@Ericson2314): Figure out what's going wrong with Arm
-    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isArm
+    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isAarch32
     then []
     else [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";
 
diff --git a/pkgs/development/compilers/gcc/5/default.nix b/pkgs/development/compilers/gcc/5/default.nix
index b9ca8696d4e3..f2a091e34dc9 100644
--- a/pkgs/development/compilers/gcc/5/default.nix
+++ b/pkgs/development/compilers/gcc/5/default.nix
@@ -329,7 +329,7 @@ stdenv.mkDerivation ({
   # TODO(@Ericson2314): Always pass "--target" and always prefix.
   configurePlatforms =
     # TODO(@Ericson2314): Figure out what's going wrong with Arm
-    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isArm
+    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isAarch32
     then []
     else [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";
 
diff --git a/pkgs/development/compilers/gcc/6/default.nix b/pkgs/development/compilers/gcc/6/default.nix
index df0c1578daed..3de5b4dd2702 100644
--- a/pkgs/development/compilers/gcc/6/default.nix
+++ b/pkgs/development/compilers/gcc/6/default.nix
@@ -333,7 +333,7 @@ stdenv.mkDerivation ({
   # TODO(@Ericson2314): Always pass "--target" and always prefix.
   configurePlatforms =
     # TODO(@Ericson2314): Figure out what's going wrong with Arm
-    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isArm
+    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isAarch32
     then []
     else [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";
 
diff --git a/pkgs/development/compilers/gcc/7/default.nix b/pkgs/development/compilers/gcc/7/default.nix
index e8997b1efb06..888e455488ca 100644
--- a/pkgs/development/compilers/gcc/7/default.nix
+++ b/pkgs/development/compilers/gcc/7/default.nix
@@ -329,7 +329,7 @@ stdenv.mkDerivation ({
   # TODO(@Ericson2314): Always pass "--target" and always prefix.
   configurePlatforms =
     # TODO(@Ericson2314): Figure out what's going wrong with Arm
-    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isArm
+    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isAarch32
     then []
     else [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";
 
diff --git a/pkgs/development/compilers/gcc/snapshot/default.nix b/pkgs/development/compilers/gcc/snapshot/default.nix
index c1306d374d5d..3c98b7a58f76 100644
--- a/pkgs/development/compilers/gcc/snapshot/default.nix
+++ b/pkgs/development/compilers/gcc/snapshot/default.nix
@@ -301,7 +301,7 @@ stdenv.mkDerivation ({
   # TODO(@Ericson2314): Always pass "--target" and always prefix.
   configurePlatforms =
     # TODO(@Ericson2314): Figure out what's going wrong with Arm
-    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isArm
+    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isAarch32
     then []
     else [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";