Commit Graph

566 Commits

Author SHA1 Message Date
Jaap de Wolff bc9b30ea77 add forward declaration to main() to prevent warnings 2018-02-16 12:16:08 +01:00
Jaap de Wolff c9d4bac58c adapt prototypes arm/syscalls.c to usual prototypes, and do not rely on implicit conversions 2018-02-16 12:16:07 +01:00
Chih-Mao Chen f2c9e55faf RISC-V: isatty: return 0 on error 2018-01-18 09:21:10 +01:00
Yaakov Selkowitz 7192f84096 ansification: remove _HAVE_STDC
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:30 -06:00
Yaakov Selkowitz 70ee6b17df ansification: remove _EXFUN, _EXFUN_NOTHROW
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:29 -06:00
Yaakov Selkowitz 9087163804 ansification: remove _DEFUN
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:26 -06:00
Yaakov Selkowitz 67ee0cac4c ansification: remove _VOID
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:20 -06:00
Yaakov Selkowitz fff27f8429 ansification: remove _DEFUN_VOID
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:19 -06:00
Yaakov Selkowitz eea249da3b ansification: remove _PARAMS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:13 -06:00
Yaakov Selkowitz e13e191b60 ansification: remove _NOARGS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:11 -06:00
Yaakov Selkowitz 6783860a2e ansification: remove _AND
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:05 -06:00
Jim Wilson 9588ff7555 RISC-V: Add gdb sim and newlib nano support. Fix a few misc minor bugs. 2017-12-26 12:31:33 -08:00
Jim Wilson 28d5b98038 RISC-V: Moved syscalls to separate files to fix aliasing problems. 2017-12-26 12:27:52 -08:00
Jim Wilson 347b083911 RISC-V: Updated syscall to take 6 arguments 2017-12-26 12:26:19 -08:00
Jim Wilson a6633677b9 RISC-V: Add nanosleep functionality 2017-12-26 12:24:45 -08:00
Jim Wilson e807c51d78 RISC-V: Fix libnosys build. 2017-12-26 12:18:42 -08:00
Alexander Fedotov f6ef29c48f Fixed semihosting for AArch64 when heapinfo parameters are not provided by debugger 2017-10-24 17:27:51 +02:00
Tamar Christina 111b6813fb Fix multido compilation on ARM
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>
2017-10-09 19:03:52 +02:00
Alexander Fedotov e7eb978881 adjust libnosys config for aarch64 to avoid linker error when switching from rdimon.specs to nosys.specs 2017-10-09 17:53:41 +02:00
Alexander Fedotov-B55613 3ec9892f5d move ILP32 sanity check on heap base code under ARM_RDI_MONITOR 2017-08-24 14:41:19 +02:00
Kito Cheng 6864c08b94 Change license to FreeBSD License for RISC-V
- 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.
2017-08-21 11:08:54 +02:00
Kito Cheng c496cbb6bd Add RISC-V port for libgloss
Contributor list:
    - Andrew Waterman  <andrew@sifive.com>
    - Palmer Dabbelt  <palmer@dabbelt.com>
    - Kito Cheng  <kito.cheng@gmail.com>
    - Alex Suykov  <alex.suykov@gmail.com>
2017-08-17 14:51:05 -04:00
Szabolcs Nagy cfa64a86d1 Fix crt0 init fini code
__USES_INITFINI__ ifdef was incorrectly copied from arm
(it's an arm backend thing in gcc, not meaningful on aarch64)
2017-08-17 13:45:26 +02:00
Alexander Fedotov-B55613 7e69f983a4 fix typo in AArch64 crt0 2017-08-15 16:19:25 +02:00
Alexander Fedotov-B55613 1f6644876e use stack from linker script when nosys 2017-08-14 10:18:14 +02:00
Yao Qi 32ca315312 Don't fetch command line options without semi-hosting
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.
2017-08-09 17:43:09 +02:00
Tamar Christina 61ddc7a436 Fix crt0 overwriting.
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>
2017-08-09 14:50:13 +02:00
Tamar Christina cd26662dc5 Previous patch to support nosys.specs accidentally broke validation specs 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>
2017-07-21 10:41:37 +02:00
Tamar Christina bb12a1e587 Support building in a different directory than the default output directory by preserving DESTDIR value in recursive calls.
Signed-off-by: Tamar Christina <tamar.christina@arm.com>
2017-07-17 13:38:42 +02:00
Tamar Christina 13665a7c30 Fix link when nosys.specs is used to link
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.
2017-07-14 10:36:32 +02:00
Tamar Christina 9eafa44d23 Replace the perl character classes with POSIX ones to fix the build when sed is a BSD sed instead of GNU.
Signed-off-by: Tamar Christina <tamar.christina@arm.com>
2017-07-06 18:05:56 +02:00
Tamar Christina ddb6f8a02a Add support for Semihosting v2 support for AArch64 in libgloss.
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>
2017-07-05 14:41:27 +02:00
Tamar Christina d7d6ad7b6b Add support for Semihosting v2 support for ARM in libgloss.
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>
2017-07-05 14:41:27 +02:00
Tamar Christina cc142edbe7 Add the needed build system changes in order to compile and create the new 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>
2017-07-05 14:41:27 +02:00
Tamar Christina bfa3bbcf33 Adds the needed build system changes in order to compile and create the new 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>
2017-07-05 14:41:27 +02:00
Tamar Christina ebd97f4c00 Create a recursive make target that is modeled after the existing multilib 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>
2017-07-05 14:41:27 +02:00
Claudiu Zissulescu 0d79b021a4 Add JLI support.
Initialize the jli_base registers for ARCv2 cpus.

libgloss/
2017-05-23  Claudiu Zissulescu  <claziss@synopsys.com>

	* arc/crt0.S: Initialize the jli_base registers for ARCv2 cpus.
2017-06-14 14:51:22 +02:00
Claudiu Zissulescu 8c8b25e388 Add profile support.
Add profile support for ARC processors.

libgloss/
2016-07-28  Claudiu Zissulescu  <claziss@synopsys.com>

	* arc/crt0.S: Add calls to profiler support routines.
	* Makefile.in (CRT0): Add gcrt0.
	(NSIM_OBJS): Add mcount.
	(CRT0_INSTALL): Install gcrt0, and crt0.
	* arc/gcrt0.S: New file.
	* arc/mcount.c: Likewise.
2017-06-14 14:51:20 +02:00
Martin Young 780503f6ac Fix thinko in MSP430 libgloss implementation of write() system call. 2017-05-26 11:35:13 +01:00
Laurent ALFONSI 9b1167219a ARM/AArch64: Fix GetCmdLine semihosting directives
When simulating arm code, the target program startup code (crt0) uses
semihosting invocations to get the command line from the simulator. The
simulator returns the command line and its size into the area passed in
parameter. (ARM 32-bit specifications :
http://infocenter.arm.com/help/topic/com.arm.doc.dui0058d/DUI0058.pdf
chapter "5.4.19 SYS_GET_CMDLINE").

The memory area pointed by the semihosting register argument is located
in .text section (usually not writtable (RX)).

If we run this code on a simulator that respects this rights properties
(qemu user-mode for instance), the command line will not be written to
the .text program memory, in particular the length of the string. The
program runs with an empty command line. This problem hasn't been seen
earlier probably because qemu user-mode is not so much used, but this can
happen with another simulator that refuse to write in a read-only segment.

With this modification, the command line can be correctly passed to the
target program.

Changes:
- libgloss/arm/crt0.S : Arguments passed to the AngelSWI_Reason_GetCmdLine
  semihosting invocation are placed into .data section instead of .text
- libgloss/aarch64/crt0.S : Idem for aarch64 AngelSVC_Reason_GetCmdLine
  semihosting.
2017-05-19 15:45:58 -04:00
Jozef Lawrynowicz 161b4ff037 Fix relocation type for _bsssize being R_MSP430X_ABS16 when large memory model is used 2017-04-19 15:04:31 +02:00
Carlos Santos 8ae6d8003a libgloss/arm: fix discovery of "eabihf" toolchains
ARM EABI toolchains can optionally use the "hf" suffix to identify
hardware floating point support. Use the "*-*-eabi*" pattern to match
these toolchains.

Original patch by Bryan Hundven for the Crosstool-NG project. Improved
by Alexey Neyman.

Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
CC: Bryan Hundven <bryanhundven@gmail.com
CC: Alexey Neyman <stilor@att.net>
2017-04-18 12:24:42 +02:00
Thomas Preud'homme be5926babb Fix elf-nano.specs to work without -save-temps
The changes in af272aca59 only works when
using gcc/g++ with -E or -save-temps, otherwise newlib's newlib.h gets
used even if -specs=nano.specs is specified. This is because the driver
only use cpp_options spec for the external cpp tool, not for the
integrated one.

This patch uses instead cpp_unique_options which is used in all cases:
it is used directly when the integrated preprocessor is used, and
indirectly by expansion of cpp_options otherwise.
2017-02-15 16:31:16 +01:00
Thomas Preudhomme af272aca59 Fix cpp invocation for C++ in nano spec
Hi,

The changes in c028685518 to use
newlib-nano's include directory work for cc1 but not cc1plus. cc1plus
comes with its own cpp spec which does not have a name attached to it.

This patch uses the renaming trick on cpp_options instead of cpp, as
cpp_options is used both by cc1 and cc1plus.
2017-02-13 09:18:00 +01:00
Stafford Horne 135c0c8368 libgloss: Remove duplicate definition of environ
Environ is defined in libgloss and libc:
 - libgloss/or1k/syscalls.c
 - libc/stdlib/environ.c

When linking we sometimes get errors:
or1k-elf-g++ test.o -mnewlib -mboard=or1ksim -lm -o  test
/opt/shorne/software/or1k/lib/gcc/or1k-elf/5.3.0/../../../../or1k-elf/lib/libor1k.a(syscalls.o):(.data+0x0):
multiple definition of `environ'
/opt/shorne/software/or1k/lib/gcc/or1k-elf/5.3.0/../../../../or1k-elf/lib/libc.a(lib_a-environ.o):(.data+0x0):
first defined here
collect2: error: ld returned 1 exit status

This doesnt happen after the fix. Basic things build fine too.
2017-02-13 09:16:51 +01:00
Stafford Horne ff7b7b8945 libgloss: or1k: If available call the init for init_array
There was an issue revealed in gdb testing where C++ virtual tables
were not getting properly initialized.  This seems to be due to the
c++ global constructors moving from ctors to init_array.

This fix makes sure we call the proper method for initializing the
constructors in all places.
2017-02-13 09:16:51 +01:00
Olof Kindgren d1caad4393 or1k: Make open reentrant
or1k uses reentrant calls by default, but there was no open_r defined
which caused failure in C++/C code such as:

int main() { std::cout << "test\n";  return 0; }

or

int main() {open(".", 0);}
2017-02-13 09:16:51 +01:00
Hans-Peter Nilsson cd5e7e2d82 Committed, libgloss: hook up cris-elf to the initfini-array support.
After a binutils change "a while ago" (2015-12) to default to
--enable-initfini-array, i.e. to merge .ctors and .dtors into
.init_array and .fini_array, this is needed for cdtors to run at all.

Based on what goes on in arm/ and aarch64/.  Tested for cris-elf by
running the gcc testsuite.

By the way, the configure test doesn't detect this change, so the
HAVE_INITFINI_ARRAY ifdeffery is somewhat redundant.  Still, the
change is tested to be safe with older binutils too.

libgloss/
	* cris/crt0.S, cris/lcrt0.c: Include newlib.h.
	[HAVE_INITFINI_ARRAY] (_init): Define to __libc_init_array.
	[HAVE_INITFINI_ARRAY] (_fini): Ditto __libc_fini_array.
2017-01-29 21:23:32 +01:00
Thomas Preudhomme 3ce88693f5 Fix html build with makeinfo 5.2
HTML build fails with makeinfo 5.2 with the following error:

libgloss/doc/porting.texi:73: @menu seen before first @node
libgloss/doc/porting.texi:73: perhaps your @top node should be wrapped in
@ifnottex rather than @ifinfo?

Following the advice indeed solve the issue while still allowing pdf, dvi and
info builds to work.
2016-08-19 10:32:23 +02:00
Claudiu Zissulescu 1baa8bb843 arc: Add align keyword.
libgloss/
2016-06-28  Claudiu Zissulescu  <claziss@synopsys.com>

	* arc/crt0.S: Add align keyword.
2016-08-11 10:59:54 +02:00