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2018-02-01Remove some math_private.h libc_fe* overrides.Joseph Myers
math_private.h headers for configurations lacking support for floating-point exceptions and rounding modes define various libc_fe* macros to override the default versions with ones that discard any exception or rounding mode arguments. Three of the four macros defined in these headers are no longer needed there: those macros are only used in fma implementations that are not used for such configurations, now all those configurations properly use soft-fp fma implementations instead. (Effectively, those macros were a workaround to allow glibc to build in the absence of a proper fma implementation for this case - now there is such an implementation, there is no need to support building the wrong implementation for those configurations.) Thus, this patch removes the unnecessary macros. Tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by the patch. * sysdeps/m68k/coldfire/nofpu/math_private.h (libc_fesetround): Remove macro. (libc_fetestexcept): Likewise. (libc_feupdateenv_test): Likewise. * sysdeps/microblaze/math_private.h (libc_fesetround): Likewise. (libc_fetestexcept): Likewise. (libc_feupdateenv_test): Likewise. * sysdeps/nios2/math_private.h (libc_fesetround): Likewise. (libc_fetestexcept): Likewise. (libc_feupdateenv_test): Likewise. * sysdeps/tile/math_private.h (libc_fesetround): Likewise. (libc_fetestexcept): Likewise. (libc_feupdateenv_test): Likewise.
2018-02-01Add feholdexcept inline in generic math_private.h.Joseph Myers
Continuing the process of improving and cleaning up the handling of configurations lacking support for floating-point exceptions and rounding modes, this patch adds trivial inline definitions of feholdexcept and __feholdexcept to the set of inlines for such configurations in math_private.h. These inlines were missing from the tile version used as a basis for the previous inlines, despite a few such function calls ending up in libm.so. Tested with build-many-glibcs.py. As expected, installed stripped shared libraries are unchanged for architectures supporting exceptions and rounding modes, but changed for architectures lacking such support. * sysdeps/generic/math_private.h [!FE_HAVE_ROUNDING_MODES && FE_ALL_EXCEPT == 0] (feholdexcept): New inline function. [!FE_HAVE_ROUNDING_MODES && FE_ALL_EXCEPT == 0] (__feholdexcept): Likewise.
2018-02-01Move fenv.h override inline functions to generic math_private.h.Joseph Myers
The tile version of math_private.h defines some inline functions for fenv.h functions, to optimize away internal calls to these functions that do nothing given no support for floating-point exceptions and rounding modes. (Some functions may have error cases for invalid arguments, but those aren't applicable to the internal calls from within glibc.) Other configurations lacking support for exceptions and rounding modes lack such inline functions. This patch moves them to the generic math_private.h, appropriately conditioned, so that all such configurations can benefit from the. include/fenv.h is made to check whether there are any non-default rounding modes; that needs to be done there, rather than later, because get-rounding-mode.h defines values for otherwise unsupported FE_* rounding modes. It also gives an error for FE_TONEAREST undefined, a case that already did not work for building the glibc testsuite; the convention has by now been established that all architectures need to provide a version of bits/fenv.h that at least defines FE_TONEAREST. Tested with build-many-glibcs.py. As expected, installed stripped shared libraries are unchanged for tile and for architectures supporting exceptions and rounding modes, but changed for non-tile architectures not supporting exceptions and rounding modes that previously lacked this optimization (e.g. Nios II libm.so is about 1kB smaller). The optimization is not in fact complete (does not cover feholdexcept / __feholdexcept, so a few calls to those remain unnecessarily within libm even after this patch), but that can be dealt with separately. * include/fenv.h [!_ISOMAC && !FE_TONEAREST]: Give #error. [!_ISOMAC] (FE_HAVE_ROUNDING_MODES): New macro. * sysdeps/generic/math_private.h [!FE_HAVE_ROUNDING_MODES && FE_ALL_EXCEPT == 0] (fegetenv): New inline function. [!FE_HAVE_ROUNDING_MODES && FE_ALL_EXCEPT == 0] (__fegetenv): Likewise. [!FE_HAVE_ROUNDING_MODES && FE_ALL_EXCEPT == 0] (fesetenv): Likewise. [!FE_HAVE_ROUNDING_MODES && FE_ALL_EXCEPT == 0] (__fesetenv): Likewise. [!FE_HAVE_ROUNDING_MODES && FE_ALL_EXCEPT == 0] (feupdateenv): Likewise. [!FE_HAVE_ROUNDING_MODES && FE_ALL_EXCEPT == 0] (__feupdateenv): Likewise. [!FE_HAVE_ROUNDING_MODES] (fegetround): Likewise. [!FE_HAVE_ROUNDING_MODES] (__fegetround): Likewise. [!FE_HAVE_ROUNDING_MODES] (fesetround): Likewise. [!FE_HAVE_ROUNDING_MODES] (__fesetround): Likewise. * sysdeps/tile/math_private.h (fegetenv): Remove inline function. (__fegetenv): Likewise. (fesetenv): Likewise. (__fesetenv): Likewise. (feupdateenv): Likewise. (__feupdateenv): Likewise. (fegetround): Likewise. (__fegetround): Likewise. (fesetround): Likewise. (__fesetround): Likewise.
2018-02-01Move some fenv.h override macros to generic math_private.h.Joseph Myers
Various configurations lacking support for floating-point exceptions and rounding modes have a math_private.h that overrides certain functions and macros, internal and external, to avoid references to FE_* constants that are undefined in those configurations. For example, there are unconditional feraiseexcept (FE_INVALID) calls in generic libm code, and these macro definitions duly define feraiseexcept to ignore its argument to avoid an error from FE_INVALID being undefined. In fact it is easy to tell in an architecture-independent way whether this is needed, by testing whether FE_ALL_EXCEPT == 0. Thus, this patch puts such a test, and feraiseexcept and __feraiseexcept macros, in the generic math_private.h, so reducing the duplication between architecture versions of this header. The feclearexcept macro present in several versions of this header, and fetestexcept in the tile version, are not needed; they would have been needed before there were proper soft-fp fma implementations (when generic versions, that depend on FE_TOWARDZERO and FE_INEXACT, were being used for configurations not supporting those features), but aren't needed any more, and so are removed. The tile version of this header has several inline functions for fenv.h functions to optimize calls to them away in such configurations where they do nothing useful, and all these header versions also have definitions of some of the libc_fe* internal macros. I intend to make those generic in subsequent patches. Tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by this patch. * sysdeps/generic/math_private.h [FE_ALL_EXCEPT == 0] (feraiseexcept): New macro. [FE_ALL_EXCEPT == 0] (__feraiseexcept): Likewise. * sysdeps/m68k/coldfire/nofpu/math_private.h (feraiseexcept): Remove macro. (__feraiseexcept): Likewise. (feclearexcept): Likewise. * sysdeps/microblaze/math_private.h (feraiseexcept): Likewise. (__feraiseexcept): Likewise. (feclearexcept): Likewise. * sysdeps/nios2/math_private.h (feraiseexcept): Likewise. (__feraiseexcept): Likewise. (feclearexcept): Likewise. * sysdeps/tile/math_private.h (feraiseexcept): Likewise. (__feraiseexcept): Likewise. (feclearexcept): Likewise. (fetestexcept): Likewise.
2018-02-01Add ColdFire math-tests.h.Joseph Myers
Since I've been fixing build issues for ColdFire, this patch adds a math-tests.h file for ColdFire, reflecting the lack of support for exceptions and rounding modes for soft float. I think it is logically correct, but have not tested it beyond build-many-glibcs.py for both hard and soft float. * sysdeps/m68k/coldfire/math-tests.h: New file.
2018-02-01Fix m68k bits/fenv.h for no-FPU ColdFire.Joseph Myers
The m68k bits/fenv.h is in sysdeps/m68k/fpu/, meaning that no-FPU ColdFire instead gets the generic (top-level) bits/fenv.h. That top-level bits/fenv.h defines no rounding mode constants. That no longer works for building glibc tests: some tests fail to build (at least with warnings) if no rounding mode macros are defined, so at least FE_TONEAREST must be defined in all cases (as various architectures without rounding mode support indeed do), while __FE_UNDEFINED must be defined in the case where not all the standard rounding modes are supported. On general principles of supporting multilib toolchains with a single set of headers shared between multilibs for a given architecture, it's also desirable for the same bits/fenv.h header to work for both FPU and no-FPU configurations. Thus, this patch moves the m68k bits/fenv.h to sysdeps/m68k/bits/fenv.h, and inserts appropriate conditionals to handle the no-FPU case. All the exception macros, and FE_NOMASK_ENV, are disabled in the no-FPU case; FE_ALL_EXCEPT is defined to 0 in that case. All rounding modes except FE_TONEAREST are disabled in that case, and __FE_UNDEFINED is defined accordingly. To avoid an unnecessary ABI change, fenv_t is defined in the no-FPU case to match the definition it would have got from the generic bits/fenv.h. This suffices to get a clean glibc and testsuite build for this configuration with build-many-glibcs.py (and keeps a clean build for the other m68k configurations); it has not been otherwise tested. * sysdeps/m68k/fpu/bits/fenv.h: Move to .... * sysdeps/m68k/bits/fenv.h: ... here. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_INEXACT): Do not define. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_DIVBYZERO): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_UNDERFLOW): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_OVERFLOW): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_INVALID): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_ALL_EXCEPT): Define to 0. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (__FE_UNDEFINED): New enum constant. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_TOWARDZERO): Do not define. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_DOWNWARD): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_UPWARD): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (fenv_t): Define to match generic bits/fenv.h. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_NOMASK_ENV): Do not define.
2018-02-01Do not use packed structures in soft-fp.Joseph Myers
Building for soft-float ColdFire produces an error in soft-fp: In file included from ../sysdeps/ieee754/soft-fp/s_fmaf.c:42: ../soft-fp/single.h:85:3: error: 'packed' attribute ignored for field of type 'struct <anonymous>' [-Werror=attributes] } bits __attribute__ ((packed)); ^ While this error only appears in that particular case, this attribute is in fact never useful, on any architecture. If you have struct __attribute__ ((packed)) { ... } bits; or struct { ... } __attribute__ ((packed)) bits; then the attribute affects the layout of the structure type. But with the form used in this code struct { ... } bits __attribute__ ((packed)); the field bits is being declared packed, but the layout of its type has already been determined at that point. If on any platform the layout of the sequence of bit-fields were wrong without the use of a packed attribute, the attribute would need to be used via a definition of _FP_STRUCT_LAYOUT, not in its present position. So this patch removes the useless attribute to fix the build for ColdFire soft-float. Tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by the patch. * soft-fp/double.h (union _FP_UNION_D): Do not use attribute packed on bits. * soft-fp/extended.h (union _FP_UNION_E): Likewise. * soft-fp/half.h (union _FP_UNION_H): Likewise. * soft-fp/quad.h (union _FP_UNION_Q): Likewise. * soft-fp/single.h (union _FP_UNION_S): Likewise.
2018-02-01Fix -Os log1p, log1pf build (bug 21314).Carlos O'Donell
As reported in bug 21314, building log1p and log1pf fails with -Os because of a spurious -Wmaybe-uninitialized warning (reported there for GCC 5 for MIPS, I see it also with GCC 7 for x86_64). This patch, based on the patches in the bug, fixes this using the DIAG_* macros. Tested for x86_64 with -Os that this eliminates those warnings and so allows the build to progress further. 2018-02-01 Carlos O'Donell <carlos@redhat.com> Ramin Seyed-Moussavi <lordrasmus@gmail.com> Joseph Myers <joseph@codesourcery.com> [BZ #21314] * sysdeps/ieee754/dbl-64/s_log1p.c: Include <libc-diag.h>. (__log1p): Disable -Wmaybe-uninitialized for -Os around computation using c. * sysdeps/ieee754/flt-32/s_log1pf.c: Include <libc-diag.h>. (__log1pf): Disable -Wmaybe-uninitialized for -Os around computation using c.
2018-02-01Open master branch for glibc 2.28 developmentglibc-2.27.9000Dmitry V. Levin
2018-02-01Update for 2.27 releaseglibc-2.27Dmitry V. Levin
2018-02-01Fix ChangeLog formattingDmitry V. Levin
2018-02-01NEWS: add the list of bugs fixed in 2.27Dmitry V. Levin
2018-02-01Record CVE-2018-6485 in ChangeLog and NEWS [BZ #22343]Florian Weimer
2018-02-01stdlib: Fixing test-*atexit*-race tests on ia64Adhemerval Zanella
These tests require a new thread stack size set to a value (0x20000) lower than the architecture minimum (0x30000). Set the stack size to PTHREAD_STACK_MIN in this case. Checked on ia64-linux-gnu. * stdlib/test-atexit-race-common.c (do_test): Check stack size against PTHREAD_STACK_MIN.
2018-02-01Update contributions in the manualDmitry V. Levin
* manual/contrib.texi (Palmer Dabbelt, Arjun Shankar, Florian Weimer): New entries. (Rafal Luzynski, Andreas Schwab): Update.
2018-02-01NEWS: List the languages which use the alternative months.Rafal Luzynski
[BZ #10871] * NEWS: List the languages which actually use the alternative months feature in this release. Also explain that "alt_mon" and "ab_alt_mon" are optional.
2018-02-01crypt: Fix badsalttest test (Bug 22765)Il'ya Malakhov
The value of 'cd.initialized' is left uninitialized before the first invocation of 'crypt_r ()' in this test despite the fact that it should be set to zero according to the API. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2018-01-31Fix typo in the previous commitDmitry V. Levin
The version of GCC was 7.3, not 7.3.1.
2018-01-31Update information about the newest versions of tools used to build glibcDmitry V. Levin
* manual/install.texi (Tools for Compilation): Update the newest versions of gcc, binutils, texinfo, gawk, bison, and sed. * INSTALL: Regenerated.
2018-01-30allocalim.h: use __glibc_likely instead of __builtin_expectSamuel Thibault
* sysdeps/pthread/allocalim.h (__libc_use_alloca): Use __glibc_likely instead of __builtin_expect.
2018-01-30hurd: Fix ChangeLog dateSamuel Thibault
2018-01-30nss: Adjust tests to use nss_files onlyFlorian Weimer
2018-01-30hr_HR: Add alternative month names (bug 10871).Rafal Luzynski
[BZ #10871] * localedata/locales/hr_HR (mon): Rename to... (alt_mon): This. (mon): Import from CLDR (genitive case). (d_t_fmt): Update the comment.
2018-01-30hurd: include generic's hp-timing.h instead of copying itSamuel Thibault
* sysdeps/mach/hurd/hp-timing.h: include <sysdeps/generic/hp-timing.h> instead of copying it.
2018-01-30hurd: Add tlsdesc.symSamuel Thibault
* sysdeps/mach/hurd/i386/tlsdesc.sym: New file.
2018-01-30hurd: disable hp timingSamuel Thibault
We don't have support for hp timing for now, even the i686 variant, which needs to know the CPU speed. Copied from sysdeps/generic/hp-timing.h * sysdeps/mach/hurd/hp-timing.h: New file.
2018-01-29hurd: Fix comments for FREAD and FWRITESamuel Thibault
* bits/fcntl.h: Fix comment for FREAD and FWRITE. * sysdeps/mach/hurd/bits/fcntl.h: Likewise.
2018-01-29malloc: Use assert.h's assert macroSamuel Thibault
This avoids assert definition conflicts if some of the headers used by malloc.c happens to include assert.h. Malloc still needs a malloc-avoiding implementation, which we get by redirecting __assert_fail to malloc's __malloc_assert. * malloc/malloc.c: Include <assert.h>. (assert): Do not define. [!defined NDEBUG] (__assert_fail): Define to __malloc_assert.
2018-01-29libio: Rename _FWRITE to FWRITE_FUNCSamuel Thibault
_FWRITE would be in the reserved-namespace. * libio/tst-memstream3.c (_FWRITE): Rename to FWRITE_FUNC. (do_test_bz20181): Rename accordingly.
2018-01-29allocalim.h: Fix codestyleSamuel Thibault
* sysdeps/pthread/allocalim.h (__libc_use_alloca): Commute operands of || to respect codestyle.
2018-01-29hurd: Fix ChangeLog dateSamuel Thibault
2018-01-29hurd: Fix preprocessor indentationSamuel Thibault
2018-01-29Reject invalid definitions of _POSIX_CHOWN_RESTRICTED, _POSIX_NO_TRUNC, ↵Andreas Schwab
_POSIX_VDISABLE POSIX requires that the constants _POSIX_CHOWN_RESTRICTED, _POSIX_NO_TRUNC, and _POSIX_VDISABLE are always defined to a value other than -1.
2018-01-29hurd: Add expected ABI listsSamuel Thibault
* hurd/Versions: Fix version when _hurd_exec_paths was added. * mach/Versions: Fix version when __mach_host_self_ was added. * sysdeps/mach/hurd/i386/ld.abilist: New file. * sysdeps/mach/hurd/i386/libBrokenLocale.abilist: New file. * sysdeps/mach/hurd/i386/libanl.abilist: New file. * sysdeps/mach/hurd/i386/libc.abilist: New file. * sysdeps/mach/hurd/i386/libcrypt.abilist: New file. * sysdeps/mach/hurd/i386/libdl.abilist: New file. * sysdeps/mach/hurd/i386/libm.abilist: New file. * sysdeps/mach/hurd/i386/libnsl.abilist: New file. * sysdeps/mach/hurd/i386/libresolv.abilist: New file. * sysdeps/mach/hurd/i386/librt.abilist: New file. * sysdeps/mach/hurd/i386/libutil.abilist: New file.
2018-01-29RISC-V: Add ipc_priv.hPalmer Dabbelt
This contains a definition of __IPC_64 that matches the RISC-V Linux ABI. 2018-01-29 Darius Rad <darius@bluespec.com> * sysdeps/unix/sysv/linux/riscv/ipc_priv.h: New file.
2018-01-29Add RISC-V to build-many-glibcs.pyPalmer Dabbelt
For full disclosure, I've only run build-many-glibcs.py with the additional diff below. diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py index 1c7b85050b57..22cc7b427041 100755 --- a/scripts/build-many-glibcs.py +++ b/scripts/build-many-glibcs.py @@ -706,7 +706,7 @@ class Context(object): 'gcc': 'vcs-7', 'glibc': 'vcs-mainline', 'gmp': '6.1.2', - 'linux': '4.14', + 'linux': '4.15-rc8', 'mpc': '1.0.3', 'mpfr': '3.1.6'} use_versions = {} @@ -841,7 +841,7 @@ class Context(object): url_map = {'binutils': 'https://ftp.gnu.org/gnu/binutils/binutils-%(version)s.tar.bz2', 'gcc': 'https://ftp.gnu.org/gnu/gcc/gcc-%(version)s/gcc-%(version)s.tar.bz2', 'gmp': 'https://ftp.gnu.org/gnu/gmp/gmp-%(version)s.tar.xz', - 'linux': 'https://www.kernel.org/pub/linux/kernel/v4.x/linux-%(version)s.tar.xz', + 'linux': 'https://git.kernel.org/torvalds/t/linux-%(version)s.tar.gz', 'mpc': 'https://ftp.gnu.org/gnu/mpc/mpc-%(version)s.tar.gz', 'mpfr': 'https://ftp.gnu.org/gnu/mpfr/mpfr-%(version)s.tar.xz'} if component not in url_map: 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * scripts/build-many-glibcs.py (Context): Add RISC-V targets. (Config): Likewise.
2018-01-29RISC-V: Build InfastructurePalmer Dabbelt
This patch lays out the top-level orginazition of the RISC-V port. It contains all the Implies files as well as various other fragments of build infastructure for the RISC-V port. This contains the only change to a shared file: config.h.in. RISC-V is a family of base ISAs with optional extensions. The base ISAs are RV32I and RV64I, which are 32-bit and 64-bit integer-only ISAs, but this port currently only supports RV64I based systems. Support for RISC-V lives in in sysdeps/riscv. In addition to these ISAs, our glibc port supports most of the currently-defined extensions: the A extension for atomics, the M extension for multiplication, the C extension for compressed instructions, and the F/D extensions for single/double precision IEEE floating-point. Most of these extensions are handled by GCC, but glibc defines various floating-point wrappers and emulation routines as well as some atomic wrappers. We support running glibc-based programs on Linux, the support for which lives in sysdeps/unix/sysv/linux/riscv. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/Implies: New file. * sysdeps/riscv/Makefile: Likewise. * sysdeps/riscv/configure: Likewise. * sysdeps/riscv/configure.ac: Likewise. * sysdeps/riscv/nptl/Makefile: Likewise. * sysdeps/riscv/preconfigure: Likewise. * sysdeps/riscv/rv64/Implies-after: Likewise. * sysdeps/riscv/rv64/rvd/Implies: Likewise. * sysdeps/riscv/rv64/rvf/Implies: Likewise. * sysdeps/unix/sysv/linux/riscv/Implies: Likewise. * sysdeps/unix/sysv/linux/riscv/Makefile: Likewise. * sysdeps/unix/sysv/linux/riscv/Versions: Likewise. * sysdeps/unix/sysv/linux/riscv/configure: Likewise. * sysdeps/unix/sysv/linux/riscv/configure.ac: Likewise. * sysdeps/unix/sysv/linux/riscv/ldd-rewrite.sed: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/Implies: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/Makefile: Likewise. * sysdeps/unix/sysv/linux/riscv/shlib-versions: Likewise.
2018-01-29RISC-V: Add ABI ListsPalmer Dabbelt
I started with the aarch64 ABI lists and manually went through each difference, ensuring that the missing entries had been deprecated along the line. Darius generated the ulps files by running the test cases on QEMU. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/nofpu/libm-test-ulps: New file. * sysdeps/riscv/nofpu/libm-test-ulps-name: Likewise. * sysdeps/riscv/rv64/rvd/libm-test-ulps: Likewise. * sysdeps/riscv/rv64/rvd/libm-test-ulps-name: Likewise. * sysdeps/unix/sysv/linux/riscv/localplt.data: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/c++-types.data: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/ld.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libanl.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libdl.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libnsl.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libutil.abilist: Likewise.
2018-01-29RISC-V: Linux Startup and Dynamic Loading CodePalmer Dabbelt
This contains the Linux-specific code for loading programs on RISC-V. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/unix/sysv/linux/riscv/dl-static.c: New file. * sysdeps/unix/sysv/linux/riscv/ldconfig.h: Likewise. * sysdeps/unix/sysv/linux/riscv/ldsodefs.h: Likewise.
2018-01-29RISC-V: Linux ABIPalmer Dabbelt
Linux-specific code that is required for maintaining ABI compatibility. This doesn't contain the actual system call interface, that is split out in order to avoid having a patch that's too big. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/nptl/pthread-offsets.h: New file. * sysdeps/riscv/nptl/pthreaddef.h: Likewise. * sysdeps/unix/sysv/linux/riscv/bits/fcntl.h: Likewise. * sysdeps/unix/sysv/linux/riscv/bits/mman.h: Likewise. * sysdeps/unix/sysv/linux/riscv/bits/sigcontext.h: Likewise. * sysdeps/unix/sysv/linux/riscv/dl-cache.h: Likewise. * sysdeps/unix/sysv/linux/riscv/flush-icache.c: Likewise. * sysdeps/unix/sysv/linux/riscv/getcontext.S: Likewise. * sysdeps/unix/sysv/linux/riscv/init-first.c: Likewise. * sysdeps/unix/sysv/linux/riscv/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/riscv/makecontext.c: Likewise. * sysdeps/unix/sysv/linux/riscv/readelflib.c: Likewise. * sysdeps/unix/sysv/linux/riscv/register-dump.h: Likewise. * sysdeps/unix/sysv/linux/riscv/setcontext.S: Likewise. * sysdeps/unix/sysv/linux/riscv/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/riscv/swapcontext.S: Likewise. * sysdeps/unix/sysv/linux/riscv/sys/cachectl.h: Likewise. * sysdeps/unix/sysv/linux/riscv/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/riscv/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/riscv/sys/user.h: Likewise. * sysdeps/unix/sysv/linux/riscv/ucontext-macros.h: Likewise. * sysdeps/unix/sysv/linux/riscv/ucontext_i.sym: Likewise.
2018-01-29RISC-V: Linux Syscall InterfacePalmer Dabbelt
Contains the Linux system call interface, as well as the definitions of a handful of system calls. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/nptl/nptl-sysdep.S: New file. * sysdeps/unix/sysv/linux/riscv/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/riscv/clone.S: Likewise. * sysdeps/unix/sysv/linux/riscv/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/riscv/pt-vfork.S: Likewise. * sysdeps/unix/sysv/linux/riscv/syscall.c: Likewise. * sysdeps/unix/sysv/linux/riscv/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/riscv/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/riscv/vfork.S: Likewise.
2018-01-29RISC-V: Atomic and Locking RoutinesPalmer Dabbelt
This patch implements various atomic and locking routines on RISC-V. We mandate the A extension on Linux-capable RISC-V systems, so this can rely on always having the various atomic instructions availiable. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/nptl/bits/pthreadtypes-arch.h: New file. * sysdeps/riscv/nptl/bits/semaphore.h: Likewise. * sysdeps/riscv/nptl/libc-lowlevellock.c: Likewise. * sysdeps/unix/sysv/linux/riscv/atomic-machine.h: Likewise.
2018-01-29RISC-V: Hard Float SupportPalmer Dabbelt
This patch contains hardware floating-point support for the RISC-V ISA. While we currently only support hard-float systems with both the F and D extensions, I've left the F-specific code split out into seperate folders in order to ease adding support for F-only and RV32I-based systems in the future. I gave this a quick once-over and believe I've removed all the code that implements RV32IF, RV32IFD, and RV64IF targets. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/rv64/rvd/s_ceil.c: New file. * sysdeps/riscv/rv64/rvd/s_floor.c: Likewise. * sysdeps/riscv/rv64/rvd/s_llrint.c: Likewise. * sysdeps/riscv/rv64/rvd/s_llround.c: Likewise. * sysdeps/riscv/rv64/rvd/s_lrint.c: Likewise. * sysdeps/riscv/rv64/rvd/s_lround.c: Likewise. * sysdeps/riscv/rv64/rvd/s_nearbyint.c: Likewise. * sysdeps/riscv/rv64/rvd/s_rint.c: Likewise. * sysdeps/riscv/rv64/rvd/s_round.c: Likewise. * sysdeps/riscv/rv64/rvd/s_roundeven.c: Likewise. * sysdeps/riscv/rv64/rvd/s_trunc.c: Likewise. * sysdeps/riscv/rv64/rvf/s_llrintf.c: Likewise. * sysdeps/riscv/rv64/rvf/s_llroundf.c: Likewise. * sysdeps/riscv/rv64/rvf/s_lrintf.c: Likewise. * sysdeps/riscv/rv64/rvf/s_lroundf.c: Likewise. * sysdeps/riscv/rvd/e_sqrt.c: Likewise. * sysdeps/riscv/rvd/s_copysign.c: Likewise. * sysdeps/riscv/rvd/s_finite.c: Likewise. * sysdeps/riscv/rvd/s_fma.c: Likewise. * sysdeps/riscv/rvd/s_fmax.c: Likewise. * sysdeps/riscv/rvd/s_fmin.c: Likewise. * sysdeps/riscv/rvd/s_fpclassify.c: Likewise. * sysdeps/riscv/rvd/s_isinf.c: Likewise. * sysdeps/riscv/rvd/s_isnan.c: Likewise. * sysdeps/riscv/rvd/s_issignaling.c: Likewise. * sysdeps/riscv/rvf/e_sqrtf.c: Likewise. * sysdeps/riscv/rvf/fclrexcpt.c: Likewise. * sysdeps/riscv/rvf/fegetenv.c: Likewise. * sysdeps/riscv/rvf/fegetmode.c: Likewise. * sysdeps/riscv/rvf/fegetround.c: Likewise. * sysdeps/riscv/rvf/feholdexcpt.c: Likewise. * sysdeps/riscv/rvf/fesetenv.c: Likewise. * sysdeps/riscv/rvf/fesetexcept.c: Likewise. * sysdeps/riscv/rvf/fesetmode.c: Likewise. * sysdeps/riscv/rvf/fesetround.c: Likewise. * sysdeps/riscv/rvf/feupdateenv.c: Likewise. * sysdeps/riscv/rvf/fgetexcptflg.c: Likewise. * sysdeps/riscv/rvf/fraiseexcpt.c: Likewise. * sysdeps/riscv/rvf/fsetexcptflg.c: Likewise. * sysdeps/riscv/rvf/ftestexcept.c: Likewise. * sysdeps/riscv/rvf/get-rounding-mode.h: Likewise. * sysdeps/riscv/rvf/math_private.h: Likewise. * sysdeps/riscv/rvf/s_ceilf.c: Likewise. * sysdeps/riscv/rvf/s_copysignf.c: Likewise. * sysdeps/riscv/rvf/s_finitef.c: Likewise. * sysdeps/riscv/rvf/s_floorf.c: Likewise. * sysdeps/riscv/rvf/s_fmaf.c: Likewise. * sysdeps/riscv/rvf/s_fmaxf.c: Likewise. * sysdeps/riscv/rvf/s_fminf.c: Likewise. * sysdeps/riscv/rvf/s_fpclassifyf.c: Likewise. * sysdeps/riscv/rvf/s_isinff.c: Likewise. * sysdeps/riscv/rvf/s_isnanf.c: Likewise. * sysdeps/riscv/rvf/s_issignalingf.c: Likewise. * sysdeps/riscv/rvf/s_nearbyintf.c: Likewise. * sysdeps/riscv/rvf/s_rintf.c: Likewise. * sysdeps/riscv/rvf/s_roundevenf.c: Likewise. * sysdeps/riscv/rvf/s_roundf.c: Likewise. * sysdeps/riscv/rvf/s_truncf.c: Likewise.
2018-01-29RISC-V: Generic <math.h> and soft-fp RoutinesPalmer Dabbelt
This patch contains the miscellaneous math routines and headers we have implemented for RISC-V. This includes things from <math.h> that aren't completely ISA-generic, floating-point bit manipulation, and soft-fp hooks. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/bits/fenv.h: New file. * sysdeps/riscv/e_sqrtl.c: Likewise. * sysdeps/riscv/fpu_control.h: Likewise. * sysdeps/riscv/math-tests.h: Likewise. * sysdeps/riscv/nofpu/Implies: Likewise. * sysdeps/riscv/sfp-machine.h: Likewise. * sysdeps/riscv/tininess.h: Likewise.
2018-01-29RISC-V: Thread-Local Storage SupportPalmer Dabbelt
This patch implements TLS support for RISC-V. We support all four standard TLS addressing modes (LE, IE, LD, and GD) when running on Linux via NPTL. There is a draft psABI document that defines our TLS ABI here https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md#thread-local-storage 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/dl-tls.h: New file. * sysdeps/riscv/libc-tls.c: Likewise. * sysdeps/riscv/nptl/tcb-offsets.sym: Likewise. * sysdeps/riscv/nptl/tls.h: Likewise. * sysdeps/riscv/stackinfo.h: Likewise.
2018-01-29RISC-V: ABI ImplementationPalmer Dabbelt
This patch contains code that needs to directly know about the RISC-V ABI, which is specified in a work-in-progress psABI document: https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md This is meant to contain all the RISC-V code that needs to explicitly name registers or manage in-memory structure layout. This does not contain any of the Linux-specific code. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/__longjmp.S: New file. * sysdeps/riscv/backtrace.c: Likewise. * sysdeps/riscv/bits/endian.h: Likewise. * sysdeps/riscv/bits/setjmp.h: Likewise. * sysdeps/riscv/bits/wordsize.h: Likewise. * sysdeps/riscv/bsd-_setjmp.c: Likewise. * sysdeps/riscv/bsd-setjmp.c: Likewise. * sysdeps/riscv/dl-trampoline.S: Likewise. * sysdeps/riscv/gccframe.h: Likewise. * sysdeps/riscv/jmpbuf-offsets.h: Likewise. * sysdeps/riscv/jmpbuf-unwind.h: Likewise. * sysdeps/riscv/machine-gmon.h: Likewise. * sysdeps/riscv/memusage.h: Likewise. * sysdeps/riscv/setjmp.S: Likewise. * sysdeps/riscv/sys/asm.h: Likewise. * sysdeps/riscv/tls-macros.h: Likewise.
2018-01-29Add documentation for __riscv_flush_icachePalmer Dabbelt
This function is used by GCC to enforce ordering between data writes and instruction fetches, and while we'd prefer that users rely on the GCC intrinsic when possible this is user visible in case that's not possible. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * manual/platform.texi: Add RISC-V documenation for __riscv_flush_icache.
2018-01-29Add RISC-V entries to config.h.inPalmer Dabbelt
These were autogenerated. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * config.h.in: Regenerate.
2018-01-29Skeleton documentation for the RISC-V portPalmer Dabbelt
During the upstreaming process it was suggested that I add a handful of small documentation entries about the RISC-V port, which I've collected here. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * manual/math.texi: RISC-V supports _Float128 and _Float64x.
2018-01-29sysdeps/init_array: Add PREINIT_FUNCTION to crti.SPalmer Dabbelt
The RISC-V port contains a crti.S that simply contains a link to PREINIT_FUNCTION (when defined). As this should be entirely generic, Joseph Myers suggested that we update the generic init_array version to contain this. Since RISC-V is the only user of init_array this won't break any existing ports. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/init_array/crti.S (.section .init_array): Add PREINIT_FUNCTION when defined.
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