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zephyr/cmake/compiler/gcc/target_sparc.cmake

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cmake: Added SPARC support This commit defines the tool prefix and command line options for the Zephyr SPARC architectural port. Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
2020-10-17 02:55:04 +08:00
# SPDX-License-Identifier: Apache-2.0
SPARC: add FPU support This change adds full shared floating point support for the SPARC architecture. All SPARC floating point registers are scratch registers with respect to function call boundaries. That means we only have to save floating point registers when switching threads in ISR. The registers are stored to the corresponding thread stack. FPU is disabled when calling ISR. Any attempt to use FPU in ISR will generate the fp_disabled trap which causes Zephyr fatal error. - This commit adds no new thread state. - All FPU contest save/restore is synchronous and lazy FPU context switch is not implemented. Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
2020-11-30 19:19:27 +08:00
if(NOT CONFIG_FPU)
list(APPEND TOOLCHAIN_C_FLAGS -msoft-float)
list(APPEND TOOLCHAIN_LD_FLAGS -msoft-float)
endif()
cmake: Added SPARC support This commit defines the tool prefix and command line options for the Zephyr SPARC architectural port. Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
2020-10-17 02:55:04 +08:00
if(CONFIG_SPARC_CASA)
# SPARC V8, mul/div, casa
list(APPEND TOOLCHAIN_C_FLAGS -mcpu=leon3)
list(APPEND TOOLCHAIN_LD_FLAGS -mcpu=leon3)
else()
# SPARC V8, mul/div, no casa
list(APPEND TOOLCHAIN_C_FLAGS -mcpu=leon)
list(APPEND TOOLCHAIN_LD_FLAGS -mcpu=leon)
endif()