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Add utility functions to get the software version string.

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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
This commit is contained in:
Richard Cochran 2012-12-09 11:26:34 +01:00
parent 0c49d16244
commit c3119807a3
3 changed files with 86 additions and 1 deletions
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15
makefile
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@ -30,7 +30,8 @@ CFLAGS = -Wall $(VER) $(INC) $(DEBUG) $(FEAT_CFLAGS) $(EXTRA_CFLAGS)
LDLIBS = -lm -lrt $(EXTRA_LDFLAGS)
PRG = ptp4l pmc phc2sys hwstamp_ctl
OBJ = bmc.o clock.o config.o fsm.o ptp4l.o mave.o msg.o phc.o pi.o port.o \
print.o raw.o servo.o sk.o tlv.o tmtab.o transport.o udp.o udp6.o uds.o util.o
print.o raw.o servo.o sk.o tlv.o tmtab.o transport.o udp.o udp6.o uds.o util.o \
version.o
OBJECTS = $(OBJ) pmc.o phc2sys.o hwstamp_ctl.o sysoff.o
SRC = $(OBJECTS:.o=.c)
@ -54,6 +55,15 @@ phc2sys: phc2sys.o sk.o sysoff.o print.o
hwstamp_ctl: hwstamp_ctl.o
version.o: .version version.sh $(filter-out version.d,$(DEPEND))
.version: force
@echo $(version) > .version.new; \
cmp -s .version .version.new || cp .version.new .version; \
rm -f .version.new;
force:
install: $(PRG)
mkdir -p $(sbindir) $(man8dir)
install $(PRG) $(sbindir)
@ -64,6 +74,7 @@ clean:
distclean: clean
rm -f $(PRG)
rm -f .version
# Implicit rule to generate a C source file's dependencies.
%.d: %.c
@ -78,3 +89,5 @@ ifneq ($(MAKECMDGOALS), distclean)
-include $(DEPEND)
endif
endif
.PHONY: all force clean distclean

35
version.c Normal file
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@ -0,0 +1,35 @@
/**
* @file version.c
* @brief Provides a software version string.
* @note Copyright (C) 2012 Richard Cochran <richardcochran@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "version.h"
#define STRINGIFY_(x) #x
#define STRINGIFY(x) STRINGIFY_(x)
static const char *version = STRINGIFY(VER);
void version_show(FILE *fp)
{
fprintf(fp, "%s\n", version);
}
const char *version_string(void)
{
return version;
}

37
version.h Normal file
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@ -0,0 +1,37 @@
/**
* @file version.h
* @brief Provides a software version string.
* @note Copyright (C) 2012 Richard Cochran <richardcochran@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef HAVE_VERSION_H
#define HAVE_VERSION_H
#include <stdio.h>
/**
* Print the software version string into the given file.
* @param fp File pointer open for writing.
*/
void version_show(FILE *fp);
/**
* Provide the software version as a human readable string.
* @return Pointer to a static global buffer holding the result.
*/
const char *version_string(void);
#endif