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Release Cosmopolitan v3.3
This change upgrades to GCC 12.3 and GNU binutils 2.42. The GNU linker appears to have changed things so that only a single de-duplicated str table is present in the binary, and it gets placed wherever the linker wants, regardless of what the linker script says. To cope with that we need to stop using .ident to embed licenses. As such, this change does significant work to revamp how third party licenses are defined in the codebase, using `.section .notice,"aR",@progbits`. This new GCC 12.3 toolchain has support for GNU indirect functions. It lets us support __target_clones__ for the first time. This is used for optimizing the performance of libc string functions such as strlen and friends so far on x86, by ensuring AVX systems favor a second codepath that uses VEX encoding. It shaves some latency off certain operations. It's a useful feature to have for scientific computing for the reasons explained by the test/libcxx/openmp_test.cc example which compiles for fifteen different microarchitectures. Thanks to the upgrades, it's now also possible to use newer instruction sets, such as AVX512FP16, VNNI. Cosmo now uses the %gs register on x86 by default for TLS. Doing it is helpful for any program that links `cosmo_dlopen()`. Such programs had to recompile their binaries at startup to change the TLS instructions. That's not great, since it means every page in the executable needs to be faulted. The work of rewriting TLS-related x86 opcodes, is moved to fixupobj.com instead. This is great news for MacOS x86 users, since we previously needed to morph the binary every time for that platform but now that's no longer necessary. The only platforms where we need fixup of TLS x86 opcodes at runtime are now Windows, OpenBSD, and NetBSD. On Windows we morph TLS to point deeper into the TIB, based on a TlsAlloc assignment, and on OpenBSD/NetBSD we morph %gs back into %fs since the kernels do not allow us to specify a value for the %gs register. OpenBSD users are now required to use APE Loader to run Cosmo binaries and assimilation is no longer possible. OpenBSD kernel needs to change to allow programs to specify a value for the %gs register, or it needs to stop marking executable pages loaded by the kernel as mimmutable(). This release fixes __constructor__, .ctor, .init_array, and lastly the .preinit_array so they behave the exact same way as glibc. We no longer use hex constants to define math.h symbols like M_PI.
This commit is contained in:
Justine Tunney
parent
d3ff48c63f
commit
957c61cbbf
736 changed files with 13726 additions and 9445 deletions
114
libc/math.h
114
libc/math.h
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@ -4,59 +4,69 @@
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│ cosmopolitan § mathematics │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#define M_E 2.7182818284590452354 /* 𝑒 */
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#define M_LOG2_10 0xd.49a784bcd1b8afep-2 /* log₂10 ≈ 3.3219280948873623478 */
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#define M_LOG2E 0xb.8aa3b295c17f0bcp-3 /* log₂𝑒 ≈ 1.4426950408889634074 */
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#define M_LOG10E 0.43429448190325182765 /* log₁₀𝑒 */
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#define M_LN2 0xb.17217f7d1cf79acp-4 /* logₑ2 ≈ */
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#define M_LN10 2.30258509299404568402 /* logₑ10 */
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#define M_TAU 0x1.921fb54442d1846ap+2 /* τ = 2π */
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#define M_PI 0x1.921fb54442d1846ap+1 /* π ≈ 3.14159265358979323846 */
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#define M_PI_2 1.57079632679489661923 /* π/2 */
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#define M_PI_4 0.78539816339744830962 /* π/4 */
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#define M_1_PI 0.31830988618379067154 /* 1/π */
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#define M_2_PI 0.63661977236758134308 /* 2/π */
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#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrtπ */
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#define M_SQRT2 1.41421356237309504880 /* sqrt2 */
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#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt2 */
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#define M_E 2.7182818284590452354 /* 𝑒 */
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#define M_LOG2E 1.4426950408889634074 /* log₂𝑒 */
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#define M_LOG10E 0.43429448190325182765 /* log₁₀𝑒 */
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#define M_LN2 0.69314718055994530942 /* logₑ2 */
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#define M_LN10 2.30258509299404568402 /* logₑ10 */
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#define M_PI 3.14159265358979323846 /* pi */
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#define M_PI_2 1.57079632679489661923 /* pi/2 */
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#define M_PI_4 0.78539816339744830962 /* pi/4 */
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#define M_1_PI 0.31830988618379067154 /* 1/pi */
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#define M_2_PI 0.63661977236758134308 /* 2/pi */
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#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
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#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
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#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
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#define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__
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#define DBL_DIG __DBL_DIG__
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#define DBL_EPSILON __DBL_EPSILON__
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#define DBL_MANT_DIG __DBL_MANT_DIG__
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#define DBL_MANT_DIG __DBL_MANT_DIG__
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#define DBL_MAX __DBL_MAX__
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#define DBL_MAX_10_EXP __DBL_MAX_10_EXP__
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#define DBL_MAX_EXP __DBL_MAX_EXP__
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#define DBL_MIN __DBL_MIN__ /* 2.23e–308 ↔ 1.79e308 */
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#define DBL_MIN_10_EXP __DBL_MIN_10_EXP__
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#define DBL_MIN_EXP __DBL_MIN_EXP__
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#define DECIMAL_DIG __LDBL_DECIMAL_DIG__
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#define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__
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#define FLT_RADIX __FLT_RADIX__
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#define FLT_DIG __FLT_DIG__
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#define FLT_EPSILON __FLT_EPSILON__
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#define FLT_MANT_DIG __FLT_MANT_DIG__
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#define FLT_MANT_DIG __FLT_MANT_DIG__
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#define FLT_MAX __FLT_MAX__
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#define FLT_MAX_10_EXP __FLT_MAX_10_EXP__
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#define FLT_MAX_EXP __FLT_MAX_EXP__
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#define FLT_MIN __FLT_MIN__ /* 1.18e–38 ↔ 3.40e38 */
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#define FLT_MIN_10_EXP __FLT_MIN_10_EXP__
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#define FLT_MIN_EXP __FLT_MIN_EXP__
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#define HLF_MAX 6.50e4f
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#define HLF_MIN 3.10e-5f
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#define LDBL_DECIMAL_DIG __LDBL_DECIMAL_DIG__
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#define LDBL_DIG __LDBL_DIG__
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#define LDBL_EPSILON __LDBL_EPSILON__
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#define LDBL_MANT_DIG __LDBL_MANT_DIG__
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#define LDBL_MANT_DIG __LDBL_MANT_DIG__
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#define LDBL_MAX __LDBL_MAX__
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#define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__
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#define LDBL_MAX_EXP __LDBL_MAX_EXP__
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#define LDBL_MIN __LDBL_MIN__ /* 3.37e–4932 ↔ 1.18e4932 */
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#define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__
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#define LDBL_MIN_EXP __LDBL_MIN_EXP__
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#define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__
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#define DBL_DIG __DBL_DIG__
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#define DBL_EPSILON __DBL_EPSILON__
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#define DBL_HAS_SUBNORM __DBL_HAS_DENORM__
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#define DBL_IS_IEC_60559 __DBL_IS_IEC_60559__
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#define DBL_MANT_DIG __DBL_MANT_DIG__
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#define DBL_MANT_DIG __DBL_MANT_DIG__
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#define DBL_MAX __DBL_MAX__
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#define DBL_MAX_10_EXP __DBL_MAX_10_EXP__
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#define DBL_MAX_EXP __DBL_MAX_EXP__
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#define DBL_MIN __DBL_MIN__ /* 2.23e–308 ↔ 1.79e308 */
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#define DBL_MIN_10_EXP __DBL_MIN_10_EXP__
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#define DBL_MIN_EXP __DBL_MIN_EXP__
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#define DBL_NORM_MAX __DBL_NORM_MAX__
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#define DBL_TRUE_MIN __DBL_DENORM_MIN__
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#define DECIMAL_DIG __LDBL_DECIMAL_DIG__
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#define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__
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#define FLT_DIG __FLT_DIG__
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#define FLT_EPSILON __FLT_EPSILON__
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#define FLT_HAS_SUBNORM __FLT_HAS_DENORM__
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#define FLT_IS_IEC_60559 __FLT_IS_IEC_60559__
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#define FLT_MANT_DIG __FLT_MANT_DIG__
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#define FLT_MANT_DIG __FLT_MANT_DIG__
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#define FLT_MAX __FLT_MAX__
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#define FLT_MAX_10_EXP __FLT_MAX_10_EXP__
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#define FLT_MAX_EXP __FLT_MAX_EXP__
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#define FLT_MIN __FLT_MIN__ /* 1.18e–38 ↔ 3.40e38 */
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#define FLT_MIN_10_EXP __FLT_MIN_10_EXP__
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#define FLT_MIN_EXP __FLT_MIN_EXP__
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#define FLT_NORM_MAX __FLT_NORM_MAX__
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#define FLT_RADIX __FLT_RADIX__
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#define FLT_TRUE_MIN __FLT_DENORM_MIN__
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#define HLF_MAX 6.50e4f
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#define HLF_MIN 3.10e-5f
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#define LDBL_DECIMAL_DIG __LDBL_DECIMAL_DIG__
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#define LDBL_DIG __LDBL_DIG__
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#define LDBL_EPSILON __LDBL_EPSILON__
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#define LDBL_HAS_SUBNORM __LDBL_HAS_DENORM__
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#define LDBL_IS_IEC_60559 __LDBL_IS_IEC_60559__
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#define LDBL_MANT_DIG __LDBL_MANT_DIG__
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#define LDBL_MANT_DIG __LDBL_MANT_DIG__
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#define LDBL_MAX __LDBL_MAX__
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#define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__
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#define LDBL_MAX_EXP __LDBL_MAX_EXP__
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#define LDBL_MIN __LDBL_MIN__ /* 3.37e–4932 ↔ 1.18e4932 */
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#define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__
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#define LDBL_MIN_EXP __LDBL_MIN_EXP__
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#define LDBL_NORM_MAX __LDBL_NORM_MAX__
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#define LDBL_TRUE_MIN __LDBL_DENORM_MIN__
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#define FP_NAN 0
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#define FP_INFINITE 1
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