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* Add libgloss install-pdf and install-html targets.Jim Wilson2018-11-202-1/+30
| | | | | | | | | | | | | | The toplevel makefile used by binutils/gcc/newlib/etc has install-pdf and install-html targets, but they fail because libgloss doesn't support them. Tested with an arm-eabi combined tree build and install, and verifying that the install-pdf and install-html targets now work, and that the pdf and html doc files are now in the install tree. libgloss/ * Makefile.in (install-html, install-pdf): New. * doc/Makefile.in (htmldir, pdfdir): New. (porting.ps): Delete white space on blank line. (install-pdf, install-html): New.
* Enable return code with semi-hosting SYS_EXIT_EXTENDEDMatthew Malcomson2018-11-192-22/+20
| | | | | | | | | | | | | | | | | | | | | | | The _exit function currently passes -1 as a "sig" to the _kill function as an invalid signal number so that _kill can distinguish between an abort and a standard exit. For boards using the SYS_EXIT_EXTENDED semi-hosting operation to return a status code, this means that the "status" paramter to _exit is ignored and the return code is always -1. https://developer.arm.com/docs/100863/latest/semihosting-operations/sys_exit_extended-0x20 This patch puts shared code between _kill and _exit into a new function _kill_shared that takes the semi-hosting "reason" to use (if semi-hosting is available) as an argument. For semi-hosting _kill_shared provides that "reason". Without the "sig" argument being used to distinguish between a normal and abnormal exit, the _exit function can provide the return code to be used if the SYS_EXIT_EXTENDED operation is available. Hence the exit code can be returned.
* Initialize SVE system registers.Tamar Christina2018-10-311-0/+27
| | | | | | | | | This patch initializes the SVE system registers if available and initializes the vector length to the maximum supported. This is done according to the SVE specification [1]. [1] https://developer.arm.com/docs/ddi0584/latest/arm-architecture-reference-manual-supplement-the-scalable-vector-extension-sve-for-armv8-a
* [Aarch64] Syscalls: fix prototypesChristophe Lyon2018-10-081-18/+19
| | | | | | | | | | This patch is similar the arm one committed recently. 2018-10-08 Christophe Lyon <christophe.lyon@linaro.org> * libgloss/aarch64/syscalls.c (_sbrk): Fix prototype. (_getpid, _write, _swiwrite, _lseek, _swilseek, _read, _wriread): Likewise.
* [ARM] Make _kill() a noreturn function.Christophe Lyon2018-10-082-4/+6
| | | | | | | | | | | | | | AngelSWI_Reason_ReportException does not return accoring to the ARM documentation, so it is valid to mark _kill() as noreturn. This way, the compiler does not warn about _exit() returning a value despite being noreturn. 2018-10-01 Christophe Lyon <christophe.lyon@linaro.org> * libgloss/arm/_exit.c (_exit): Declare _kill() as noreturn. * libgloss/arm/_exit.c (_kill): Likewise. Remove the return statements. * newlib/libc/sys/arm/syscalls.c (_kill): Likewise..
* [Aarch64] Fix warning in _sbrkChristophe Lyon2018-10-051-1/+1
| | | | | | | 2018-10-01 Christophe Lyon <christophe.lyon@linaro.org> * libgloss/aarch64/syscalls.c (_sbrk): Cast "__heap_limit" to "char *".
* Committed, CRIS port: fix fallout from time_t defaulting to 64 bits, part 1Hans-Peter Nilsson2018-09-132-5/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's been a while... I see the CRIS port broke with the time_t-default-to-64-bit change, observable by a few test-cases in the gcc fortran(!) tests failing, regressing when trying a recent newlib. This is a two-part belt-and-suspenders change: adjust the CRIS port gettimeofday syscall (the only one in newlib/CRIS passing a time_t or struct timeval) to handle a userspace 64-bit time_t and secondly default time_t to 32-bit long anyway. I considered making the local "kernel_timeval" copy in _gettimeofday conditional on (userspace) time_t being 64 bits, but thought it not worth bothering with the few move insns. The effect of a 64-bit time_t is however observable as longer simulation time when running the gcc testsuite and as bigger binaries without any actual upside from the larger time_t size, so I thought better make the default for this port go back to being a "long" again. Tested by running the gcc testsuite over the three combinations of two parts of the patch and observing the expected changes. Committed. libgloss: Adjust for syscall and userspace having different time_t or timeval. * cris/linunistd.h (kernel_time_t, kernel_suseconds_t, kernel_timeval): New types. (gettimeofday): Change the type of the first argument to be a pointer to a struct kernel_timeval. * cris/gensyscalls (_gettimeofday): Use an intermediate struct kernel_timeval for the syscall and initialize the result from that. Signed-off-by: Hans-Peter Nilsson <hp@axis.com>
* RISC-V: Fix _sbrk, it's failed only when return value is -1.Denis Ivanov2018-08-292-7/+12
| | | | Signed-off-by: Kito Cheng <kito.cheng@gmail.com>
* RISC-V: Fixed return code in _times syscall.Denis Ivanov2018-08-291-2/+2
| | | | | | | | Upon successful completion, times() shall return the elapsed real time, in clock ticks, since an arbitrary point in the past (for example, system start-up time). Signed-off-by: Kito Cheng <kito.cheng@gmail.com>
* Add BSP and semihosting library for nios2-generic-nommu QEMU emulation.Sandra Loosemore2018-08-0828-0/+5848
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* Patch from Richard Earnshaw <Richard.Earnshaw@arm.com>newlib-snapshot-20180802Jeff Johnston2018-08-011-4/+8
| | | | | * aarch64/cpu-init/rdimon-aem-el3.S (cpu_init_hook): Simplify entry/exit sequences. Add CFI unwind rules.
* RISC-V: Do not use _init/_finiSebastian Huber2018-07-301-11/+0
| | | | | | | Introduce new host configuration variable "have_init_fini" which is set to "yes" by default. Override it for RISC-V to "no". Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* Fix AArch32 semihosting SYS_EXIT call on semihosting v1.Tamar Christina2018-07-111-0/+6
| | | | | | | | | | | | | | | | | | | | | | The current SYS_EXIT has a bug that when making the call it always uses the v2 calling convention. This is undefined behavior according to the semihosting specification: https://developer.arm.com/docs/100863/latest/semihosting-operations/sys_exit-0x18 This patch fixes it by making sure v1 passes the argument directly in the register instead of in a block. And for v2 it does the same if the v2 extension isn't supported. The sequence generated now is 12424: ebfffecd bl 11f60 <_has_ext_exit_extended> 12428: e3500000 cmp r0, #0 1242c: 11a0500d movne r5, sp 12430: 059d5000 ldreq r5, [sp] 12434: e1a00004 mov r0, r4 12438: e1a01005 mov r1, r5 1243c: ef00f000 svc 0x0000f000 Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* libgloss: microblaze: adjust handlers to be weak.Ben Levinsky2018-05-032-2/+4
| | | | | | | Previously, hw exception handler stub and interrupt handler stub for microbaze were unable to be overwritten. Change to weak to fix this. Signed-off-by: Ben Levinsky <ben.levinsky@xilinx.com>
* add forward declaration to main() to prevent warningsJaap de Wolff2018-02-161-0/+2
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* adapt prototypes arm/syscalls.c to usual prototypes, and do not rely on ↵Jaap de Wolff2018-02-161-48/+49
| | | | implicit conversions
* RISC-V: isatty: return 0 on errorChih-Mao Chen2018-01-181-1/+1
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* ansification: remove _HAVE_STDCYaakov Selkowitz2018-01-171-4/+0
| | | | Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* ansification: remove _EXFUN, _EXFUN_NOTHROWYaakov Selkowitz2018-01-175-6/+6
| | | | Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* ansification: remove _DEFUNYaakov Selkowitz2018-01-17107-233/+118
| | | | Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* ansification: remove _VOIDYaakov Selkowitz2018-01-172-2/+2
| | | | Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* ansification: remove _DEFUN_VOIDYaakov Selkowitz2018-01-174-7/+7
| | | | Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* ansification: remove _PARAMSYaakov Selkowitz2018-01-178-73/+73
| | | | Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* ansification: remove _NOARGSYaakov Selkowitz2018-01-173-3/+3
| | | | Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* ansification: remove _ANDYaakov Selkowitz2018-01-1764-85/+85
| | | | Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* RISC-V: Add gdb sim and newlib nano support. Fix a few misc minor bugs.Jim Wilson2017-12-264-6/+111
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* RISC-V: Moved syscalls to separate files to fix aliasing problems.Jim Wilson2017-12-2637-450/+513
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* RISC-V: Updated syscall to take 6 argumentsJim Wilson2017-12-262-22/+26
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* RISC-V: Add nanosleep functionalityJim Wilson2017-12-262-0/+13
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* RISC-V: Fix libnosys build.Jim Wilson2017-12-262-0/+4
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* Fixed semihosting for AArch64 when heapinfo parameters are not provided by ↵Alexander Fedotov2017-10-242-26/+59
| | | | debugger
* Fix multido compilation on ARMTamar Christina2017-10-091-2/+2
| | | | | | | | | | | | | The previous multi-build implementation was copying the config.status from the parent multilib directory when building the different semihosting variants. It did so because the configuration doesn't change. However when you use a relative path to configure it turns out that the paths inside the config.status are also relative. To fix this, the srcdir is adjusted from the initial configuration instead of copying it. Tested on aarch64-none-elf and arm-none-eabi. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* adjust libnosys config for aarch64 to avoid linker error when switching from ↵Alexander Fedotov2017-10-092-0/+4
| | | | rdimon.specs to nosys.specs
* move ILP32 sanity check on heap base code under ARM_RDI_MONITORAlexander Fedotov-B556132017-08-241-4/+5
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* Change license to FreeBSD License for RISC-VKito Cheng2017-08-213-3/+3
| | | | | | - For prevent confuse about what BSD license variant we used, 2- or 3-clause license, we change the license to FreeBSD license to make it unambiguously refers to the 2-clause license.
* Add RISC-V port for libglossnewlib-snapshot-20170818Kito Cheng2017-08-179-0/+4340
| | | | | | | | Contributor list: - Andrew Waterman <andrew@sifive.com> - Palmer Dabbelt <palmer@dabbelt.com> - Kito Cheng <kito.cheng@gmail.com> - Alex Suykov <alex.suykov@gmail.com>
* Fix crt0 init fini codeSzabolcs Nagy2017-08-171-4/+0
| | | | | __USES_INITFINI__ ifdef was incorrectly copied from arm (it's an arm backend thing in gcc, not meaningful on aarch64)
* fix typo in AArch64 crt0Alexander Fedotov-B556132017-08-151-1/+1
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* use stack from linker script when nosysAlexander Fedotov-B556132017-08-141-1/+18
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* Don't fetch command line options without semi-hostingYao Qi2017-08-091-0/+6
| | | | | | | | | | | | | | | | | Nowadays, the code fetching command line options via semi-hosting are unconditionally pulled in, so that the semi-hosting code is still there even I compile with option --specs=nosys.specs. gdb ./aarch64-none-elf/libgloss/aarch64/crt0.o (gdb) disassemble _start 0x0000000000000050 <+80>: ldr x1, 0x128 <_cpu_init_hook+48> 0x0000000000000054 <+84>: mov w0, #0x15 0x0000000000000058 <+88>: hlt #0xf000 This patch fixes this problem by wrapping the code by ARM_RDI_MONITOR. When semi-hosting is not used, set command line options to NULL.
* Fix crt0 overwriting.Tamar Christina2017-08-094-1/+10
| | | | | | | | | | | On AArch64 we currently always link in crt0 regardless of if another one is being provided by something else, like rdimon.a. This was never an issue before as nosys was not supported on AArch64. This updates the specs to supply a different crt0 when a semihosting call is required. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* Previous patch to support nosys.specs accidentally broke validation specs ↵Tamar Christina2017-07-211-1/+1
| | | | | | | | | | | | because ARM_RDI_MONITOR was never passed to the build rule for crt0. This fixed the compile for nosys and validation specs but nosys won't run because of existing limitations to aarch64's syscalls.c, it requires semihosting to get commandline arguments and heap info without having a fallback method as ARM does. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* Support building in a different directory than the default output directory ↵Tamar Christina2017-07-171-1/+1
| | | | | | by preserving DESTDIR value in recursive calls. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* Fix link when nosys.specs is used to linkTamar Christina2017-07-141-0/+2
| | | | | | | | This patch fixes the issue where nosys.specs is used to link. e.g. The use of crt0 without any support for semihosting requested. The AArch64 crt0 was missing an #ifdef for the initialise_monitor_handles which was causing the link to fail. Sorry for missing this before.
* Replace the perl character classes with POSIX ones to fix the build when sed ↵Tamar Christina2017-07-061-4/+4
| | | | | | is a BSD sed instead of GNU. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* Add support for Semihosting v2 support for AArch64 in libgloss.Tamar Christina2017-07-054-47/+186
| | | | | | | | | | Semihosting v2 changes are documented here: https://developer.arm.com/docs/100863/latest/ The biggest change is the addition of an extensions mechanism to add more extensions in the future. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* Add support for Semihosting v2 support for ARM in libgloss.Tamar Christina2017-07-053-65/+231
| | | | | | | | | | Semihosting v2 changes are documented here: https://developer.arm.com/docs/100863/latest/ The biggest change is the addition of an extensions mechanism to add more extensions in the future. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* Add the needed build system changes in order to compile and create the new ↵Tamar Christina2017-07-059-17/+147
| | | | | | | | | | | | | | | | | | libraries for Semihosting v2 for ARM. This uses the new recursive build target in multi-build.in The new spec files are: For AArch32/ARM (m for mixed mode): - rdimon-v2m.specs - aprofile-validation-v2m.specs - aprofile-ve-v2m.specs These spec files will be using the new libraries generated by multi-build.in. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* Adds the needed build system changes in order to compile and create the new ↵Tamar Christina2017-07-054-16/+49
| | | | | | | | | | | libraries for Semihosting v2. This uses the new recursive build target in multi-build.in For AArch64 no new spec files are needed but the makefiles are modified to keep them in sync with the ARM ones. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
* Create a recursive make target that is modeled after the existing multilib ↵Tamar Christina2017-07-051-0/+61
| | | | | | | | | makefile config-ml.in which can be used to build the same files within a target multiple ways. e.g. from the same source file produce multiple libs by varying the options passed to the compiler. Signed-off-by: Tamar Christina <tamar.christina@arm.com>
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