diff options
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/check_clang.sh | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/scripts/check_clang.sh b/scripts/check_clang.sh index 3c4faee3..5f13c491 100755 --- a/scripts/check_clang.sh +++ b/scripts/check_clang.sh @@ -188,13 +188,18 @@ CMAKE_EXAMPLE_CORES="cortex_r52" # their port directory, which covers both ports/ and ports_smp/. Listed # explicitly rather than silently skipped, so the gaps stay visible. # -# These fail with the GNU toolchain too, so they are not LLVM problems: -# arm9 arm11 their linker scripts do not define _init and _fini. -# Those symbols come from crti.o and crtn.o, which -# -nostartfiles leaves out, so newlib's fini.c fails to -# link. Reproduced with arm-none-eabi-gcc 13.2.1. -# cortex_r4 cortex_r5 need newlib multilib variants for those CPUs, which are -# not present in every GNU toolchain packaging. +# These fail with the GNU toolchain too, so they are not LLVM problems. All four +# fail the same way, for the same reason: +# +# their linker scripts define the .init and .fini sections but not the _init +# and _fini symbols. Those come from crti.o and crtn.o, which -nostartfiles +# leaves out, so newlib's fini.c cannot resolve them and the link ends with +# "undefined reference to `_fini'". Reproduced with arm-none-eabi-gcc 13.2.1. +# +# Until 6.1.10 the four linked libc.a and libgcc.a checked in beside them, which +# supplied those symbols. That sweep removed the archives without updating the +# link lines, so for years the examples failed earlier still, on the missing +# files themselves. Fixing the link lines exposed the _fini gap underneath. EXAMPLES_EXPECTED_TO_FAIL="arm9 arm11 cortex_r4 cortex_r5" failures=0 |