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libgloss: arc: Add clock() system call to libnsim

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clock() system call is used in some GDB tests thus it is
necessary to implement it for testing purposes. A value
for clock() is taken from a default timer (timer 0). If it is
not presented than the error value (-1) is returned.

Signed-off-by: Yuriy Kolerov <ykolerov@synopsys.com>
This commit is contained in:
Yuriy Kolerov 2025-01-31 23:04:23 +02:00 committed by Corinna Vinschen
parent 6d7ace3681
commit 0387c7e1cc
4 changed files with 37 additions and 2 deletions
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27
libgloss/Makefile.in
View File

@ -654,8 +654,8 @@ arc_libiotdk_uart_a_LIBADD =
arc_libiotdk_uart_a_OBJECTS = $(am_arc_libiotdk_uart_a_OBJECTS)
arc_libnsim_a_AR = $(AR) $(ARFLAGS)
arc_libnsim_a_LIBADD =
@CONFIG_ARC_TRUE@am_arc_libnsim_a_OBJECTS = arc/libcfunc.$(OBJEXT) \
@CONFIG_ARC_TRUE@ arc/mcount.$(OBJEXT) \
@CONFIG_ARC_TRUE@am_arc_libnsim_a_OBJECTS = arc/arc-timer.$(OBJEXT) \
@CONFIG_ARC_TRUE@ arc/libcfunc.$(OBJEXT) arc/mcount.$(OBJEXT) \
@CONFIG_ARC_TRUE@ arc/nsim-syscalls.$(OBJEXT) \
@CONFIG_ARC_TRUE@ arc/sbrk.$(OBJEXT)
arc_libnsim_a_OBJECTS = $(am_arc_libnsim_a_OBJECTS)
@ -693,6 +693,7 @@ arc64_libhl_a_OBJECTS = $(am_arc64_libhl_a_OBJECTS)
arc64_libnsim_a_AR = $(AR) $(ARFLAGS)
arc64_libnsim_a_LIBADD =
@CONFIG_ARC64_TRUE@am_arc64_libnsim_a_OBJECTS = \
@CONFIG_ARC64_TRUE@ arc/arc64_libnsim_a-arc-timer.$(OBJEXT) \
@CONFIG_ARC64_TRUE@ arc/arc64_libnsim_a-libcfunc.$(OBJEXT) \
@CONFIG_ARC64_TRUE@ arc/arc64_libnsim_a-nsim-syscalls.$(OBJEXT) \
@CONFIG_ARC64_TRUE@ arc/arc64_libnsim_a-sbrk.$(OBJEXT)
@ -2171,6 +2172,7 @@ TEXINFO_TEX = ../texinfo/texinfo.tex
@CONFIG_AARCH64_TRUE@ aarch64/cpu-init/rdimon-aem-v8-r.o
@CONFIG_ARC_TRUE@arc_libnsim_a_SOURCES = \
@CONFIG_ARC_TRUE@ arc/arc-timer.c \
@CONFIG_ARC_TRUE@ arc/libcfunc.c \
@CONFIG_ARC_TRUE@ arc/mcount.c \
@CONFIG_ARC_TRUE@ arc/nsim-syscalls.c \
@ -2217,6 +2219,7 @@ TEXINFO_TEX = ../texinfo/texinfo.tex
@CONFIG_ARC_TRUE@arc_libemsdp_uart_a_SOURCES = arc/emsdp-uart-setup.c
@CONFIG_ARC64_TRUE@arc64_libnsim_a_CPPFLAGS = -I$(srcdir)/arc
@CONFIG_ARC64_TRUE@arc64_libnsim_a_SOURCES = \
@CONFIG_ARC64_TRUE@ arc/arc-timer.c \
@CONFIG_ARC64_TRUE@ arc/libcfunc.c \
@CONFIG_ARC64_TRUE@ arc/nsim-syscalls.c \
@CONFIG_ARC64_TRUE@ arc/sbrk.c
@ -3376,6 +3379,8 @@ arc/libiotdk_uart.a: $(arc_libiotdk_uart_a_OBJECTS) $(arc_libiotdk_uart_a_DEPEND
$(AM_V_at)-rm -f arc/libiotdk_uart.a
$(AM_V_AR)$(arc_libiotdk_uart_a_AR) arc/libiotdk_uart.a $(arc_libiotdk_uart_a_OBJECTS) $(arc_libiotdk_uart_a_LIBADD)
$(AM_V_at)$(RANLIB) arc/libiotdk_uart.a
arc/arc-timer.$(OBJEXT): arc/$(am__dirstamp) \
arc/$(DEPDIR)/$(am__dirstamp)
arc/libcfunc.$(OBJEXT): arc/$(am__dirstamp) \
arc/$(DEPDIR)/$(am__dirstamp)
arc/mcount.$(OBJEXT): arc/$(am__dirstamp) \
@ -3447,6 +3452,8 @@ arc64/libhl.a: $(arc64_libhl_a_OBJECTS) $(arc64_libhl_a_DEPENDENCIES) $(EXTRA_ar
$(AM_V_at)-rm -f arc64/libhl.a
$(AM_V_AR)$(arc64_libhl_a_AR) arc64/libhl.a $(arc64_libhl_a_OBJECTS) $(arc64_libhl_a_LIBADD)
$(AM_V_at)$(RANLIB) arc64/libhl.a
arc/arc64_libnsim_a-arc-timer.$(OBJEXT): arc/$(am__dirstamp) \
arc/$(DEPDIR)/$(am__dirstamp)
arc/arc64_libnsim_a-libcfunc.$(OBJEXT): arc/$(am__dirstamp) \
arc/$(DEPDIR)/$(am__dirstamp)
arc/arc64_libnsim_a-nsim-syscalls.$(OBJEXT): arc/$(am__dirstamp) \
@ -5675,11 +5682,13 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@aarch64/$(DEPDIR)/aarch64_librdimon_a-syscalls.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@aarch64/$(DEPDIR)/aarch64_librdimon_a-truncate.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc-main-helper.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc-timer.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc64_libhl_a-arc-timer.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc64_libhl_a-hl-setup.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc64_libhl_a-hl-stub.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc64_libhl_a-libcfunc.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc64_libhl_a-sbrk.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc64_libnsim_a-arc-timer.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc64_libnsim_a-libcfunc.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc64_libnsim_a-nsim-syscalls.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@arc/$(DEPDIR)/arc64_libnsim_a-sbrk.Po@am__quote@
@ -7369,6 +7378,20 @@ arc/hl/arc64_libhl_a-hl_exit.obj: arc/hl/hl_exit.c
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(arc64_libhl_a_CPPFLAGS) $(CPPFLAGS) $(arc64_libhl_a_CFLAGS) $(CFLAGS) -c -o arc/hl/arc64_libhl_a-hl_exit.obj `if test -f 'arc/hl/hl_exit.c'; then $(CYGPATH_W) 'arc/hl/hl_exit.c'; else $(CYGPATH_W) '$(srcdir)/arc/hl/hl_exit.c'; fi`
arc/arc64_libnsim_a-arc-timer.o: arc/arc-timer.c
@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(arc64_libnsim_a_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT arc/arc64_libnsim_a-arc-timer.o -MD -MP -MF arc/$(DEPDIR)/arc64_libnsim_a-arc-timer.Tpo -c -o arc/arc64_libnsim_a-arc-timer.o `test -f 'arc/arc-timer.c' || echo '$(srcdir)/'`arc/arc-timer.c
@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) arc/$(DEPDIR)/arc64_libnsim_a-arc-timer.Tpo arc/$(DEPDIR)/arc64_libnsim_a-arc-timer.Po
@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='arc/arc-timer.c' object='arc/arc64_libnsim_a-arc-timer.o' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(arc64_libnsim_a_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o arc/arc64_libnsim_a-arc-timer.o `test -f 'arc/arc-timer.c' || echo '$(srcdir)/'`arc/arc-timer.c
arc/arc64_libnsim_a-arc-timer.obj: arc/arc-timer.c
@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(arc64_libnsim_a_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT arc/arc64_libnsim_a-arc-timer.obj -MD -MP -MF arc/$(DEPDIR)/arc64_libnsim_a-arc-timer.Tpo -c -o arc/arc64_libnsim_a-arc-timer.obj `if test -f 'arc/arc-timer.c'; then $(CYGPATH_W) 'arc/arc-timer.c'; else $(CYGPATH_W) '$(srcdir)/arc/arc-timer.c'; fi`
@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) arc/$(DEPDIR)/arc64_libnsim_a-arc-timer.Tpo arc/$(DEPDIR)/arc64_libnsim_a-arc-timer.Po
@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='arc/arc-timer.c' object='arc/arc64_libnsim_a-arc-timer.obj' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(arc64_libnsim_a_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o arc/arc64_libnsim_a-arc-timer.obj `if test -f 'arc/arc-timer.c'; then $(CYGPATH_W) 'arc/arc-timer.c'; else $(CYGPATH_W) '$(srcdir)/arc/arc-timer.c'; fi`
arc/arc64_libnsim_a-libcfunc.o: arc/libcfunc.c
@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(arc64_libnsim_a_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT arc/arc64_libnsim_a-libcfunc.o -MD -MP -MF arc/$(DEPDIR)/arc64_libnsim_a-libcfunc.Tpo -c -o arc/arc64_libnsim_a-libcfunc.o `test -f 'arc/libcfunc.c' || echo '$(srcdir)/'`arc/libcfunc.c
@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) arc/$(DEPDIR)/arc64_libnsim_a-libcfunc.Tpo arc/$(DEPDIR)/arc64_libnsim_a-libcfunc.Po

1
libgloss/arc/Makefile.inc
View File

@ -1,5 +1,6 @@
multilibtool_LIBRARIES += %D%/libnsim.a
%C%_libnsim_a_SOURCES = \
%D%/arc-timer.c \
%D%/libcfunc.c \
%D%/mcount.c \
%D%/nsim-syscalls.c \

10
libgloss/arc/nsim-syscalls.c
View File

@ -39,6 +39,7 @@
#include "glue.h"
#include "nsim-syscall.h"
#include "arc-timer.h"
/* Those system calls are implemented in both nSIM and CGEN. */
_syscall3 (_ssize_t, read, int, fd, void *, buf, size_t, count)
@ -223,6 +224,15 @@ _getentropy (void *buf, size_t buflen)
return -1;
}
clock_t
_clock (void)
{
if (_arc_timer_default_present ())
return _arc_timer_default_read ();
else
return -1;
}
/* Some system calls are implemented in nSIM hostlink, but are available only
on Linux hosts. To minimize potential compatibility issues they are by
default disabled in libgloss build. */

1
libgloss/arc64/Makefile.inc
View File

@ -1,6 +1,7 @@
multilibtool_LIBRARIES += %D%/libnsim.a
%C%_libnsim_a_CPPFLAGS = -I$(srcdir)/arc
%C%_libnsim_a_SOURCES = \
arc/arc-timer.c \
arc/libcfunc.c \
arc/nsim-syscalls.c \
arc/sbrk.c