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| author | Richard Earnshaw <rearnsha@arm.com> | 2024-06-04 12:56:20 +0100 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@arm.com> | 2024-06-05 17:45:45 +0100 |
| commit | d3a79e28334f691d651aefbbef9eaaa952b67178 (patch) | |
| tree | 2a036ac8cfb3160074b47ff6a7e0a5a311c38ef6 /gas | |
| parent | 51c2c0f62bd8dc10b66212a76ea1843a28e41c90 (diff) | |
| download | binutils-d3a79e28334f691d651aefbbef9eaaa952b67178.zip binutils-d3a79e28334f691d651aefbbef9eaaa952b67178.tar.gz binutils-d3a79e28334f691d651aefbbef9eaaa952b67178.tar.bz2 | |
arm: default to softvfp on armv6 or later cores
From armv6 onwards a lot of cores started to come with a physical VFP
implementation; but many still did not and in some cases there are
both variants. For the cores that lacked a physical VFP we would fall
back to FPU_NONE if the platform/ABI did not mandate something else.
To make matters worse, FPU_NONE is internal state used to imply
soft-fpa (ie a mixed-endian double format), so any use of .double in
hand-written assembly is almost certainly generating incorrect output.
That's undesirable, all these cores should really default to a softvfp
model.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/config/tc-arm.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index 12e8f7c..8452ea1 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -31458,10 +31458,10 @@ static const struct arm_cpu_option_table arm_cpus[] = FPU_ARCH_VFP_V2), ARM_CPU_OPT ("arm1136js", "ARM1136J-S", ARM_ARCH_V6, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("arm1136j-s", NULL, ARM_ARCH_V6, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("arm1136jfs", "ARM1136JF-S", ARM_ARCH_V6, ARM_ARCH_NONE, FPU_ARCH_VFP_V2), @@ -31473,22 +31473,22 @@ static const struct arm_cpu_option_table arm_cpus[] = FPU_ARCH_VFP_V2), ARM_CPU_OPT ("mpcorenovfp", "MPCore", ARM_ARCH_V6K, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("arm1156t2-s", NULL, ARM_ARCH_V6T2, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("arm1156t2f-s", NULL, ARM_ARCH_V6T2, ARM_ARCH_NONE, FPU_ARCH_VFP_V2), ARM_CPU_OPT ("arm1176jz-s", NULL, ARM_ARCH_V6KZ, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("arm1176jzf-s", NULL, ARM_ARCH_V6KZ, ARM_ARCH_NONE, FPU_ARCH_VFP_V2), ARM_CPU_OPT ("cortex-a5", "Cortex-A5", ARM_ARCH_V7A, ARM_FEATURE_CORE_LOW (ARM_EXT_MP | ARM_EXT_SEC), - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-a7", "Cortex-A7", ARM_ARCH_V7VE, ARM_ARCH_NONE, FPU_ARCH_NEON_VFP_V4), @@ -31559,13 +31559,13 @@ static const struct arm_cpu_option_table arm_cpus[] = FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD), ARM_CPU_OPT ("cortex-r4", "Cortex-R4", ARM_ARCH_V7R, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-r4f", "Cortex-R4F", ARM_ARCH_V7R, ARM_ARCH_NONE, FPU_ARCH_VFP_V3D16), ARM_CPU_OPT ("cortex-r5", "Cortex-R5", ARM_ARCH_V7R, ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV), - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-r7", "Cortex-R7", ARM_ARCH_V7R, ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV), FPU_ARCH_VFP_V3D16), @@ -31580,31 +31580,31 @@ static const struct arm_cpu_option_table arm_cpus[] = FPU_ARCH_NEON_VFP_ARMV8), ARM_CPU_OPT ("cortex-m35p", "Cortex-M35P", ARM_ARCH_V8M_MAIN, ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP | ARM_EXT_V6_DSP), - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-m33", "Cortex-M33", ARM_ARCH_V8M_MAIN, ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP | ARM_EXT_V6_DSP), - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-m23", "Cortex-M23", ARM_ARCH_V8M_BASE, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-m7", "Cortex-M7", ARM_ARCH_V7EM, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-m4", "Cortex-M4", ARM_ARCH_V7EM, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-m3", "Cortex-M3", ARM_ARCH_V7M, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-m1", "Cortex-M1", ARM_ARCH_V6SM, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-m0", "Cortex-M0", ARM_ARCH_V6SM, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-m0plus", "Cortex-M0+", ARM_ARCH_V6SM, ARM_ARCH_NONE, - FPU_NONE), + FPU_ARCH_SOFTVFP), ARM_CPU_OPT ("cortex-x1", "Cortex-X1", ARM_ARCH_V8_2A, ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST | ARM_EXT2_SB), FPU_ARCH_DOTPROD_NEON_VFP_ARMV8), |