Changeset 2944b5a in mainline

Timestamp:

2023-10-22T16:57:43Z (7 months ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

master, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

71b4444

Parents:

cebd956

git-author:

Vojtech Horky <vojtech.horky@…> (2023-08-02 16:34:59)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2023-10-22 16:57:43)

Message:

arm32: fix floating point abi configuration

File:

• meson/arch/arm32/meson.build (modified) (1 diff)

meson/arch/arm32/meson.build

@@ -42 +42 @@
 ]
 
+arch_kernel_c_args = arch_uspace_c_args + [ '-mno-unaligned-access', '-mfpu=vfpv3' ]
+arch_kernel_c_args += cc.get_supported_arguments(['-mgeneral-regs-only' ])
+arch_kernel_link_args = [ '-nostdlib', '-Wl,-z,max-page-size=0x1000' ]
+
 if CONFIG_FPU
-        # This is necessary for kernel too, to allow vmsr insn and fpexc manipulation.
-        # Use vfp32 to allow context save/restore of d16-d31 regs.
-        arch_uspace_c_args += [ '-mfloat-abi=hard' ]
+    # Need to use softfp because our libgcc.a uses it too
+    # softfp - generate code with soft-float calling conventions but allow use
+    # of "hard" float instructions
+    arch_uspace_c_args += [ '-mfloat-abi=softfp' ]
 endif
-
-arch_kernel_c_args = arch_uspace_c_args + [ '-mno-unaligned-access', '-mfpu=vfpv3' ]
-arch_kernel_link_args = [ '-nostdlib', '-Wl,-z,max-page-size=0x1000' ]
 arch_uspace_link_args = [ '-nostdlib', '-lgcc', '-Wl,-z,max-page-size=0x1000' ]