sw: Definitively remove custom math library

Author: colluca

Bender.yml

@@ -29,56 +29,6 @@ dependencies:
   cluster_icache:     { git: https://github.com/pulp-platform/cluster_icache.git, version:  0.1.0   }
   idma:               { git: https://github.com/pulp-platform/iDMA,               version:  0.6.0   }
 
-vendor_package:
-  - name: musl
-    target_dir: sw/math
-    upstream: { git: https://github.com/kraj/musl.git, rev: 7a43f6fea9081bdd53d8a11cef9e9fab0348c53d } # v1.2.4
-    patch_dir: sw/deps/patches/musl
-    include_from_upstream:
-      - "COPYRIGHT"
-      - "Makefile"
-      - ".gitignore"
-      - "README"
-      - "src/math/ceil.c"
-      - "src/math/ceilf.c"
-      - "src/math/ceill.c"
-      - "src/math/expm1.c"
-      - "src/math/expf.c"
-      - "src/math/exp2f_data.c"
-      - "src/math/exp2f_data.h"
-      - "src/math/log2.c"
-      - "src/math/log2_data.c"
-      - "src/math/log2_data.h"
-      - "src/math/log2f.c"
-      - "src/math/log2f_data.c"
-      - "src/math/log2f_data.h"
-      - "src/math/__math_divzero.c"
-      - "src/math/__math_invalid.c"
-      - "src/math/__math_invalidf.c"
-      - "src/math/__math_invalidl.c"
-      - "src/math/__math_oflow.c"
-      - "src/math/__math_oflowf.c"
-      - "src/math/__math_uflow.c"
-      - "src/math/__math_uflowf.c"
-      - "src/math/__math_xflow.c"
-      - "src/math/__math_xflowf.c"
-      - "src/math/sqrt.c"
-      - "src/math/sqrtf.c"
-      - "src/math/sqrt_data.c"
-      - "src/math/sqrt_data.h"
-      - "src/math/tanh.c"
-      - "src/internal/libm.h"
-      - "src/include/features.h"
-      - "include/endian.h"
-      - "include/math.h"
-      - "include/features.h"
-      - "include/float.h"
-      - "include/alltypes.h.in"
-      - "arch/riscv64/bits/alltypes.h.in"
-      - "arch/riscv64/bits/float.h"
-      - "tools/mkalltypes.sed"
-      - "arch/generic/fp_arch.h"
-
 export_include_dirs:
   - hw/reqrsp_interface/include
   - hw/mem_interface/include

sw/dnn/batchnorm/scripts/datagen.py

@@ -65,7 +65,8 @@ def emit_header(**kwargs):
     ifmap_uid = 'ifmap'
     ofmap_uid = 'ofmap'
     beta_uid = 'beta'
-    gamma_uid = 'gamma'
+    # Underscore is used to disambiguate between this and the gamma function from "math.h"
+    gamma_uid = 'gamma_'
 
     layer_cfg = {
         'CI': ci,