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Compatibilize ArmC6 with ArmC5-built archives 

### Description

Arm compiler 5 builds with "short" enums and "short" wchars. This means
that C/C++ enums will be packed into the smallest power of 2 number of
bytes by the compiler and the `wchar_t` is 2 bytes. Arm compiler 6
defaults to packing enums into 4 bytes and `wchar_t` is 4 bytes.

Further, Arm Compiler 5's `-O0` (no optimizations) bulids will actually
do some amount of optimizing, similar to Arm Compiler 6's `-O1`. I have
switched the debug profile to `-O1` for maximum compatibility with our
prior behavior.

NOTE: "Compatibilize" is a word

### Pull request type

    [x] Fix
    [ ] Refactor
    [ ] Target update
    [ ] Functionality change
    [ ] Docs update
    [ ] Test update
    [ ] Breaking change
pull/8803/head
Jimmy Brisson 2018-11-19 11:43:05 -06:00
parent 9aef9d3661
commit b1b69d2d60
3 changed files with 7 additions and 4 deletions
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5
tools/profiles/debug.json
View File

@ -16,10 +16,11 @@
"-Wl,-n"]
},
"ARMC6": {
"common": ["-c", "--target=arm-arm-none-eabi", "-mthumb", "-g", "-O0",
"common": ["-c", "--target=arm-arm-none-eabi", "-mthumb", "-g", "-O1",
"-Wno-armcc-pragma-push-pop", "-Wno-armcc-pragma-anon-unions",
"-DMULADDC_CANNOT_USE_R7", "-fdata-sections",
"-fno-exceptions", "-MMD", "-D_LIBCPP_EXTERN_TEMPLATE(...)="],
"-fno-exceptions", "-MMD", "-D_LIBCPP_EXTERN_TEMPLATE(...)=",
"-fshort-enums", "-fshort-wchar" ],
"asm": [],
"c": ["-D__ASSERT_MSG", "-std=gnu99"],
"cxx": ["-fno-rtti", "-std=gnu++98"],

3
tools/profiles/develop.json
View File

@ -18,7 +18,8 @@
"common": ["-c", "--target=arm-arm-none-eabi", "-mthumb", "-Os",
"-Wno-armcc-pragma-push-pop", "-Wno-armcc-pragma-anon-unions",
"-DMULADDC_CANNOT_USE_R7", "-fdata-sections",
"-fno-exceptions", "-MMD", "-D_LIBCPP_EXTERN_TEMPLATE(...)="],
"-fno-exceptions", "-MMD", "-D_LIBCPP_EXTERN_TEMPLATE(...)=",
"-fshort-enums", "-fshort-wchar"],
"asm": [],
"c": ["-D__ASSERT_MSG", "-std=gnu99"],
"cxx": ["-fno-rtti", "-std=gnu++98"],

3
tools/profiles/release.json
View File

@ -18,7 +18,8 @@
"common": ["-c", "--target=arm-arm-none-eabi", "-mthumb", "-Oz",
"-Wno-armcc-pragma-push-pop", "-Wno-armcc-pragma-anon-unions",
"-DMULADDC_CANNOT_USE_R7", "-fdata-sections",
"-fno-exceptions", "-MMD", "-D_LIBCPP_EXTERN_TEMPLATE(...)="],
"-fno-exceptions", "-MMD", "-D_LIBCPP_EXTERN_TEMPLATE(...)=",
"-fshort-enums", "-fshort-wchar"],
"asm": [],
"c": ["-D__ASSERT_MSG", "-std=gnu99"],
"cxx": ["-fno-rtti", "-std=gnu++98"],