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platform_bionic/libm/Android.bp
Elliott Hughes c204334b06 Reuse the libm scalbn() as ldexp(). 
These are the same function for machines with binary floats (that is:
all machines), but ldexp() is in libc rather than libm, so we can't just
use an alias.

We were using this duplicate copy of the code, but upstream FreeBSD has
removed it, and I'd prefer to do the same.

Longer term, we should just move all of libm into libc (but keep an
empty libm for compatibility), but this is probably easier for now.

Test: treehugger
Change-Id: I1a1d6d4f1771316f791ad59c714a3a65aedefc81
2023-07-20 21:05:44 +00:00

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//
// libm.so and libm.a for target.
//
package {
default_applicable_licenses: ["bionic_libm_license"],
}
license {
name: "bionic_libm_license",
visibility: [":__subpackages__"],
license_kinds: [
"SPDX-license-identifier-Apache-2.0",
"SPDX-license-identifier-BSD",
"SPDX-license-identifier-MIT",
"legacy_unencumbered",
],
license_text: [
"NOTICE",
],
}
cc_library {
name: "libm",
defaults: ["linux_bionic_supported"],
ramdisk_available: true,
vendor_ramdisk_available: true,
recovery_available: true,
static_ndk_lib: true,
whole_static_libs: ["libarm-optimized-routines-math"],
tidy_disabled_srcs: ["upstream-*/**/*.c"],
srcs: [
"upstream-freebsd/lib/msun/bsdsrc/b_tgamma.c",
"upstream-freebsd/lib/msun/src/catrig.c",
"upstream-freebsd/lib/msun/src/catrigf.c",
"upstream-freebsd/lib/msun/src/e_acos.c",
"upstream-freebsd/lib/msun/src/e_acosf.c",
"upstream-freebsd/lib/msun/src/e_acosh.c",
"upstream-freebsd/lib/msun/src/e_acoshf.c",
"upstream-freebsd/lib/msun/src/e_asin.c",
"upstream-freebsd/lib/msun/src/e_asinf.c",
"upstream-freebsd/lib/msun/src/e_atan2.c",
"upstream-freebsd/lib/msun/src/e_atan2f.c",
"upstream-freebsd/lib/msun/src/e_atanh.c",
"upstream-freebsd/lib/msun/src/e_atanhf.c",
"upstream-freebsd/lib/msun/src/e_cosh.c",
"upstream-freebsd/lib/msun/src/e_coshf.c",
"upstream-freebsd/lib/msun/src/e_fmod.c",
"upstream-freebsd/lib/msun/src/e_fmodf.c",
"upstream-freebsd/lib/msun/src/e_gamma.c",
"upstream-freebsd/lib/msun/src/e_gammaf.c",
"upstream-freebsd/lib/msun/src/e_gammaf_r.c",
"upstream-freebsd/lib/msun/src/e_gamma_r.c",
"upstream-freebsd/lib/msun/src/e_hypot.c",
"upstream-freebsd/lib/msun/src/e_hypotf.c",
"upstream-freebsd/lib/msun/src/e_j0.c",
"upstream-freebsd/lib/msun/src/e_j0f.c",
"upstream-freebsd/lib/msun/src/e_j1.c",
"upstream-freebsd/lib/msun/src/e_j1f.c",
"upstream-freebsd/lib/msun/src/e_jn.c",
"upstream-freebsd/lib/msun/src/e_jnf.c",
"upstream-freebsd/lib/msun/src/e_lgamma.c",
"upstream-freebsd/lib/msun/src/e_lgammaf.c",
"upstream-freebsd/lib/msun/src/e_lgammaf_r.c",
"upstream-freebsd/lib/msun/src/e_lgamma_r.c",
"upstream-freebsd/lib/msun/src/e_log10.c",
"upstream-freebsd/lib/msun/src/e_log10f.c",
"upstream-freebsd/lib/msun/src/e_remainder.c",
"upstream-freebsd/lib/msun/src/e_remainderf.c",
"upstream-freebsd/lib/msun/src/e_rem_pio2.c",
"upstream-freebsd/lib/msun/src/e_rem_pio2f.c",
"upstream-freebsd/lib/msun/src/e_scalb.c",
"upstream-freebsd/lib/msun/src/e_scalbf.c",
"upstream-freebsd/lib/msun/src/e_sinh.c",
"upstream-freebsd/lib/msun/src/e_sinhf.c",
"upstream-freebsd/lib/msun/src/k_cos.c",
"upstream-freebsd/lib/msun/src/k_cosf.c",
"upstream-freebsd/lib/msun/src/k_exp.c",
"upstream-freebsd/lib/msun/src/k_expf.c",
"upstream-freebsd/lib/msun/src/k_rem_pio2.c",
"upstream-freebsd/lib/msun/src/k_sin.c",
"upstream-freebsd/lib/msun/src/k_sinf.c",
"upstream-freebsd/lib/msun/src/k_tan.c",
"upstream-freebsd/lib/msun/src/k_tanf.c",
"upstream-freebsd/lib/msun/src/s_asinh.c",
"upstream-freebsd/lib/msun/src/s_asinhf.c",
"upstream-freebsd/lib/msun/src/s_atan.c",
"upstream-freebsd/lib/msun/src/s_atanf.c",
"upstream-freebsd/lib/msun/src/s_carg.c",
"upstream-freebsd/lib/msun/src/s_cargf.c",
"upstream-freebsd/lib/msun/src/s_cargl.c",
"upstream-freebsd/lib/msun/src/s_cbrt.c",
"upstream-freebsd/lib/msun/src/s_cbrtf.c",
"upstream-freebsd/lib/msun/src/s_ccosh.c",
"upstream-freebsd/lib/msun/src/s_ccoshf.c",
"upstream-freebsd/lib/msun/src/s_cexp.c",
"upstream-freebsd/lib/msun/src/s_cexpf.c",
"upstream-freebsd/lib/msun/src/s_cimag.c",
"upstream-freebsd/lib/msun/src/s_cimagf.c",
"upstream-freebsd/lib/msun/src/s_cimagl.c",
"upstream-freebsd/lib/msun/src/s_clog.c",
"upstream-freebsd/lib/msun/src/s_clogf.c",
"upstream-freebsd/lib/msun/src/s_conj.c",
"upstream-freebsd/lib/msun/src/s_conjf.c",
"upstream-freebsd/lib/msun/src/s_conjl.c",
"upstream-freebsd/lib/msun/src/s_cos.c",
"upstream-freebsd/lib/msun/src/s_cospi.c",
"upstream-freebsd/lib/msun/src/s_cpow.c",
"upstream-freebsd/lib/msun/src/s_cpowf.c",
"upstream-freebsd/lib/msun/src/s_cpowl.c",
"upstream-freebsd/lib/msun/src/s_cproj.c",
"upstream-freebsd/lib/msun/src/s_cprojf.c",
"upstream-freebsd/lib/msun/src/s_cprojl.c",
"upstream-freebsd/lib/msun/src/s_creal.c",
"upstream-freebsd/lib/msun/src/s_crealf.c",
"upstream-freebsd/lib/msun/src/s_creall.c",
"upstream-freebsd/lib/msun/src/s_csinh.c",
"upstream-freebsd/lib/msun/src/s_csinhf.c",
"upstream-freebsd/lib/msun/src/s_csqrt.c",
"upstream-freebsd/lib/msun/src/s_csqrtf.c",
"upstream-freebsd/lib/msun/src/s_ctanh.c",
"upstream-freebsd/lib/msun/src/s_ctanhf.c",
"upstream-freebsd/lib/msun/src/s_erf.c",
"upstream-freebsd/lib/msun/src/s_erff.c",
"upstream-freebsd/lib/msun/src/s_expm1.c",
"upstream-freebsd/lib/msun/src/s_expm1f.c",
"upstream-freebsd/lib/msun/src/s_fdim.c",
"upstream-freebsd/lib/msun/src/s_finite.c",
"upstream-freebsd/lib/msun/src/s_finitef.c",
"upstream-freebsd/lib/msun/src/s_fma.c",
"upstream-freebsd/lib/msun/src/s_fmaf.c",
"upstream-freebsd/lib/msun/src/s_fmax.c",
"upstream-freebsd/lib/msun/src/s_fmaxf.c",
"upstream-freebsd/lib/msun/src/s_fmin.c",
"upstream-freebsd/lib/msun/src/s_fminf.c",
"upstream-freebsd/lib/msun/src/s_frexp.c",
"upstream-freebsd/lib/msun/src/s_frexpf.c",
"upstream-freebsd/lib/msun/src/s_ilogb.c",
"upstream-freebsd/lib/msun/src/s_ilogbf.c",
"upstream-freebsd/lib/msun/src/s_llrint.c",
"upstream-freebsd/lib/msun/src/s_llrintf.c",
"upstream-freebsd/lib/msun/src/s_llround.c",
"upstream-freebsd/lib/msun/src/s_llroundf.c",
"upstream-freebsd/lib/msun/src/s_log1p.c",
"upstream-freebsd/lib/msun/src/s_log1pf.c",
"upstream-freebsd/lib/msun/src/s_logb.c",
"upstream-freebsd/lib/msun/src/s_logbf.c",
"upstream-freebsd/lib/msun/src/s_lrint.c",
"upstream-freebsd/lib/msun/src/s_lrintf.c",
"upstream-freebsd/lib/msun/src/s_lround.c",
"upstream-freebsd/lib/msun/src/s_lroundf.c",
"upstream-freebsd/lib/msun/src/s_modf.c",
"upstream-freebsd/lib/msun/src/s_modff.c",
"upstream-freebsd/lib/msun/src/s_nan.c",
"upstream-freebsd/lib/msun/src/s_nearbyint.c",
"upstream-freebsd/lib/msun/src/s_nextafter.c",
"upstream-freebsd/lib/msun/src/s_nextafterf.c",
"upstream-freebsd/lib/msun/src/s_remquo.c",
"upstream-freebsd/lib/msun/src/s_remquof.c",
"upstream-freebsd/lib/msun/src/s_rint.c",
"upstream-freebsd/lib/msun/src/s_rintf.c",
"upstream-freebsd/lib/msun/src/s_round.c",
"upstream-freebsd/lib/msun/src/s_roundf.c",
"upstream-freebsd/lib/msun/src/s_scalbln.c",
"upstream-freebsd/lib/msun/src/s_scalbn.c",
"upstream-freebsd/lib/msun/src/s_scalbnf.c",
"upstream-freebsd/lib/msun/src/s_signgam.c",
"upstream-freebsd/lib/msun/src/s_significand.c",
"upstream-freebsd/lib/msun/src/s_significandf.c",
"upstream-freebsd/lib/msun/src/s_sin.c",
"upstream-freebsd/lib/msun/src/s_sinpi.c",
"upstream-freebsd/lib/msun/src/s_sincos.c",
"upstream-freebsd/lib/msun/src/s_tan.c",
"upstream-freebsd/lib/msun/src/s_tanf.c",
"upstream-freebsd/lib/msun/src/s_tanh.c",
"upstream-freebsd/lib/msun/src/s_tanhf.c",
"upstream-freebsd/lib/msun/src/s_tgammaf.c",
"upstream-freebsd/lib/msun/src/s_trunc.c",
"upstream-freebsd/lib/msun/src/s_truncf.c",
"upstream-freebsd/lib/msun/src/w_cabs.c",
"upstream-freebsd/lib/msun/src/w_cabsf.c",
"upstream-freebsd/lib/msun/src/w_cabsl.c",
"upstream-freebsd/lib/msun/src/w_drem.c",
"upstream-freebsd/lib/msun/src/w_dremf.c",
// The FreeBSD complex functions appear to be better, but they're incomplete.
// We take the FreeBSD implementations when they exist, but fill out the rest
// of <complex.h> from NetBSD...
"upstream-netbsd/lib/libm/complex/ccoshl.c",
"upstream-netbsd/lib/libm/complex/ccosl.c",
"upstream-netbsd/lib/libm/complex/cephes_subrl.c",
"upstream-netbsd/lib/libm/complex/cexpl.c",
"upstream-netbsd/lib/libm/complex/csinhl.c",
"upstream-netbsd/lib/libm/complex/csinl.c",
"upstream-netbsd/lib/libm/complex/ctanhl.c",
"upstream-netbsd/lib/libm/complex/ctanl.c",
// TODO: this comes from from upstream's libc, not libm, but it's an
// implementation detail that should have hidden visibility, so it needs
// to be in whatever library the math code is in.
"digittoint.c",
// Functionality not in the BSDs.
"significandl.c",
"fake_long_double.c",
// Home-grown stuff.
"builtins.cpp",
"signbit.cpp",
],
multilib: {
lib64: {
srcs: [
"upstream-freebsd/lib/msun/src/catrigl.c",
"upstream-freebsd/lib/msun/src/e_acosl.c",
"upstream-freebsd/lib/msun/src/e_acoshl.c",
"upstream-freebsd/lib/msun/src/e_asinl.c",
"upstream-freebsd/lib/msun/src/e_atan2l.c",
"upstream-freebsd/lib/msun/src/e_atanhl.c",
"upstream-freebsd/lib/msun/src/e_fmodl.c",
"upstream-freebsd/lib/msun/src/e_hypotl.c",
"upstream-freebsd/lib/msun/src/e_lgammal.c",
"upstream-freebsd/lib/msun/src/e_remainderl.c",
"upstream-freebsd/lib/msun/src/e_sqrtl.c",
"upstream-freebsd/lib/msun/src/s_asinhl.c",
"upstream-freebsd/lib/msun/src/s_atanl.c",
"upstream-freebsd/lib/msun/src/s_cbrtl.c",
"upstream-freebsd/lib/msun/src/s_ceill.c",
"upstream-freebsd/lib/msun/src/s_clogl.c",
"upstream-freebsd/lib/msun/src/e_coshl.c",
"upstream-freebsd/lib/msun/src/s_cosl.c",
"upstream-freebsd/lib/msun/src/s_csqrtl.c",
"upstream-freebsd/lib/msun/src/s_floorl.c",
"upstream-freebsd/lib/msun/src/s_fmal.c",
"upstream-freebsd/lib/msun/src/s_fmaxl.c",
"upstream-freebsd/lib/msun/src/s_fminl.c",
"upstream-freebsd/lib/msun/src/s_modfl.c",
"upstream-freebsd/lib/msun/src/s_frexpl.c",
"upstream-freebsd/lib/msun/src/s_ilogbl.c",
"upstream-freebsd/lib/msun/src/s_llrintl.c",
"upstream-freebsd/lib/msun/src/s_llroundl.c",
"upstream-freebsd/lib/msun/src/s_logbl.c",
"upstream-freebsd/lib/msun/src/s_lrintl.c",
"upstream-freebsd/lib/msun/src/s_lroundl.c",
"upstream-freebsd/lib/msun/src/s_nextafterl.c",
"upstream-freebsd/lib/msun/src/s_nexttoward.c",
"upstream-freebsd/lib/msun/src/s_nexttowardf.c",
"upstream-freebsd/lib/msun/src/s_remquol.c",
"upstream-freebsd/lib/msun/src/s_rintl.c",
"upstream-freebsd/lib/msun/src/s_roundl.c",
"upstream-freebsd/lib/msun/src/s_scalbnl.c",
"upstream-freebsd/lib/msun/src/s_sincosl.c",
"upstream-freebsd/lib/msun/src/e_sinhl.c",
"upstream-freebsd/lib/msun/src/s_sinl.c",
"upstream-freebsd/lib/msun/src/s_tanhl.c",
"upstream-freebsd/lib/msun/src/s_tanl.c",
"upstream-freebsd/lib/msun/src/s_truncl.c",
"upstream-freebsd/lib/msun/ld128/invtrig.c",
"upstream-freebsd/lib/msun/ld128/e_lgammal_r.c",
"upstream-freebsd/lib/msun/ld128/e_powl.c",
"upstream-freebsd/lib/msun/ld128/k_cosl.c",
"upstream-freebsd/lib/msun/ld128/k_sinl.c",
"upstream-freebsd/lib/msun/ld128/k_tanl.c",
"upstream-freebsd/lib/msun/ld128/s_erfl.c",
"upstream-freebsd/lib/msun/ld128/s_exp2l.c",
"upstream-freebsd/lib/msun/ld128/s_expl.c",
"upstream-freebsd/lib/msun/ld128/s_logl.c",
"upstream-freebsd/lib/msun/ld128/s_nanl.c",
],
local_include_dirs: ["upstream-freebsd/lib/msun/ld128/"],
},
},
arch: {
arm: {
srcs: [
"arm/fenv.c",
"upstream-freebsd/lib/msun/src/s_ceil.c",
"upstream-freebsd/lib/msun/src/s_ceilf.c",
],
instruction_set: "arm",
pack_relocations: false,
ldflags: ["-Wl,--hash-style=both"],
version_script: ":libm.arm.map",
no_libcrt: true,
shared: {
// For backwards-compatibility, some arm32 builtins are exported from libm.so.
static_libs: ["libclang_rt.builtins-exported"],
},
},
arm64: {
srcs: [
"arm64/fenv.c",
],
exclude_srcs: [
"upstream-freebsd/lib/msun/src/s_fma.c",
"upstream-freebsd/lib/msun/src/s_fmaf.c",
"upstream-freebsd/lib/msun/src/s_fmax.c",
"upstream-freebsd/lib/msun/src/s_fmaxf.c",
"upstream-freebsd/lib/msun/src/s_fmin.c",
"upstream-freebsd/lib/msun/src/s_fminf.c",
"upstream-freebsd/lib/msun/src/s_llrint.c",
"upstream-freebsd/lib/msun/src/s_llrintf.c",
"upstream-freebsd/lib/msun/src/s_llround.c",
"upstream-freebsd/lib/msun/src/s_llroundf.c",
"upstream-freebsd/lib/msun/src/s_lrint.c",
"upstream-freebsd/lib/msun/src/s_lrintf.c",
"upstream-freebsd/lib/msun/src/s_lround.c",
"upstream-freebsd/lib/msun/src/s_lroundf.c",
"upstream-freebsd/lib/msun/src/s_rint.c",
"upstream-freebsd/lib/msun/src/s_rintf.c",
"upstream-freebsd/lib/msun/src/s_round.c",
"upstream-freebsd/lib/msun/src/s_roundf.c",
"upstream-freebsd/lib/msun/src/s_trunc.c",
"upstream-freebsd/lib/msun/src/s_truncf.c",
],
version_script: ":libm.arm64.map",
},
riscv64: {
srcs: [
"riscv64/fenv.c",
],
exclude_srcs: [
"upstream-freebsd/lib/msun/src/s_fma.c",
"upstream-freebsd/lib/msun/src/s_fmaf.c",
"upstream-freebsd/lib/msun/src/s_fmax.c",
"upstream-freebsd/lib/msun/src/s_fmaxf.c",
"upstream-freebsd/lib/msun/src/s_fmin.c",
"upstream-freebsd/lib/msun/src/s_fminf.c",
"upstream-freebsd/lib/msun/src/s_llrint.c",
"upstream-freebsd/lib/msun/src/s_llrintf.c",
"upstream-freebsd/lib/msun/src/s_llround.c",
"upstream-freebsd/lib/msun/src/s_llroundf.c",
"upstream-freebsd/lib/msun/src/s_lrint.c",
"upstream-freebsd/lib/msun/src/s_lrintf.c",
"upstream-freebsd/lib/msun/src/s_lround.c",
"upstream-freebsd/lib/msun/src/s_lroundf.c",
"upstream-freebsd/lib/msun/src/s_rint.c",
"upstream-freebsd/lib/msun/src/s_rintf.c",
"upstream-freebsd/lib/msun/src/s_round.c",
"upstream-freebsd/lib/msun/src/s_roundf.c",
"upstream-freebsd/lib/msun/src/s_trunc.c",
"upstream-freebsd/lib/msun/src/s_truncf.c",
],
version_script: ":libm.riscv64.map",
},
x86: {
srcs: [
"i387/fenv.c",
"x86/lrint.S",
"x86/lrintf.S",
],
exclude_srcs: [
"upstream-freebsd/lib/msun/src/s_lrint.c",
"upstream-freebsd/lib/msun/src/s_lrintf.c",
"upstream-freebsd/lib/msun/src/s_rint.c",
"upstream-freebsd/lib/msun/src/s_rintf.c",
"upstream-freebsd/lib/msun/src/s_trunc.c",
"upstream-freebsd/lib/msun/src/s_truncf.c",
],
local_include_dirs: ["i387"],
pack_relocations: false,
// The x86 ABI doesn't include this, which is needed for the
// roundss/roundsd instructions that we've used since Android M.
cflags: ["-msse4.1"],
ldflags: ["-Wl,--hash-style=both"],
version_script: ":libm.x86.map",
},
x86_64: {
srcs: [
"amd64/fenv.c",
"x86_64/lrint.S",
"x86_64/lrintf.S",
],
exclude_srcs: [
"upstream-freebsd/lib/msun/src/s_llrint.c",
"upstream-freebsd/lib/msun/src/s_llrintf.c",
"upstream-freebsd/lib/msun/src/s_lrint.c",
"upstream-freebsd/lib/msun/src/s_lrintf.c",
"upstream-freebsd/lib/msun/src/s_rint.c",
"upstream-freebsd/lib/msun/src/s_rintf.c",
"upstream-freebsd/lib/msun/src/s_trunc.c",
"upstream-freebsd/lib/msun/src/s_truncf.c",
],
version_script: ":libm.x86_64.map",
},
},
local_include_dirs: [
"upstream-freebsd/android/include/",
"upstream-freebsd/lib/msun/src/",
],
cflags: [
"-D_BSD_SOURCE",
"-DFLT_EVAL_METHOD=0",
"-include freebsd-compat.h",
"-include fenv-access.h",
"-fno-builtin",
"-fno-math-errno",
"-Wall",
"-Werror",
"-Wno-ignored-pragmas",
"-Wno-missing-braces",
"-Wno-parentheses",
"-Wno-sign-compare",
"-Wno-static-in-inline",
"-Wno-unknown-pragmas",
"-Wno-unused-const-variable",
"-Wno-unused-variable",
],
ldflags: [
"-Wl,--Bsymbolic-functions",
],
// b/120614316, non-critical readibility check
tidy_checks: ["-cert-dcl16-c"],
include_dirs: ["bionic/libc"],
target: {
bionic: {
system_shared_libs: ["libc"],
},
},
sanitize: {
address: false,
fuzzer: false,
integer_overflow: false,
},
stl: "none",
native_bridge_supported: true,
stubs: {
symbol_file: "libm.map.txt",
versions: [
"29",
"current",
],
},
llndk: {
symbol_file: "libm.map.txt",
},
apex_available: [
"//apex_available:platform",
"com.android.runtime",
],
lto: {
never: true,
},
}
ndk_library {
name: "libm",
symbol_file: "libm.map.txt",
first_version: "9",
// APIs implemented in asm don't have debug info: http://b/190554910.
allow_untyped_symbols: true,
}
genrule {
name: "libm.arm.map",
out: ["libm.arm.map.txt"],
srcs: ["libm.map.txt"],
tools: ["generate-version-script"],
cmd: "$(location generate-version-script) arm $(in) $(out)",
}
genrule {
name: "libm.arm64.map",
out: ["libm.arm64.map.txt"],
srcs: ["libm.map.txt"],
tools: ["generate-version-script"],
cmd: "$(location generate-version-script) arm64 $(in) $(out)",
}
genrule {
name: "libm.riscv64.map",
out: ["libm.riscv64.map.txt"],
srcs: ["libm.map.txt"],
tools: ["generate-version-script"],
cmd: "$(location generate-version-script) riscv64 $(in) $(out)",
}
genrule {
name: "libm.x86.map",
out: ["libm.x86.map.txt"],
srcs: ["libm.map.txt"],
tools: ["generate-version-script"],
cmd: "$(location generate-version-script) x86 $(in) $(out)",
}
genrule {
name: "libm.x86_64.map",
out: ["libm.x86_64.map.txt"],
srcs: ["libm.map.txt"],
tools: ["generate-version-script"],
cmd: "$(location generate-version-script) x86_64 $(in) $(out)",
}
filegroup {
name: "libc_ldexp_srcs",
srcs: ["upstream-freebsd/lib/msun/src/s_scalbn.c"],
}
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