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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Minios-devel] [UNIKRAFT PATCH 1/3] lib/ukdebug: Move hexdump output demultiplexer
This commit moves the output demultiplexer from hexdump to an own
place so that it could be used by other ukdebug-internal routines.
Signed-off-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
---
lib/ukdebug/Makefile.uk | 1 +
lib/ukdebug/hexdump.c | 142 ++++++++--------------------------------
lib/ukdebug/outf.c | 85 ++++++++++++++++++++++++
lib/ukdebug/outf.h | 114 ++++++++++++++++++++++++++++++++
4 files changed, 227 insertions(+), 115 deletions(-)
create mode 100644 lib/ukdebug/outf.c
create mode 100644 lib/ukdebug/outf.h
diff --git a/lib/ukdebug/Makefile.uk b/lib/ukdebug/Makefile.uk
index 8f46061d..6b3acf7a 100644
--- a/lib/ukdebug/Makefile.uk
+++ b/lib/ukdebug/Makefile.uk
@@ -8,6 +8,7 @@ LIBUKDEBUG_CXXFLAGS-y += -D__IN_LIBUKDEBUG__
LIBUKDEBUG_SRCS-y += $(LIBUKDEBUG_BASE)/print.c
LIBUKDEBUG_SRCS-$(CONFIG_HAVE_LIBC) += $(LIBUKDEBUG_BASE)/snprintf.c
+LIBUKDEBUG_SRCS-y += $(LIBUKDEBUG_BASE)/outf.c
LIBUKDEBUG_SRCS-y += $(LIBUKDEBUG_BASE)/hexdump.c
LIBUKDEBUG_SRCS-$(CONFIG_LIBUKDEBUG_TRACEPOINTS) += $(LIBUKDEBUG_BASE)/trace.c
LIBUKDEBUG_SRCS-$(CONFIG_LIBVFSCORE) += $(LIBUKDEBUG_BASE)/extra.ld
diff --git a/lib/ukdebug/hexdump.c b/lib/ukdebug/hexdump.c
index fc57c673..0708489d 100644
--- a/lib/ukdebug/hexdump.c
+++ b/lib/ukdebug/hexdump.c
@@ -36,9 +36,7 @@
*/
#include <string.h>
-#include <inttypes.h>
-#include <stdarg.h>
-#include "snprintf.h"
+#include "outf.h"
#include <uk/arch/types.h>
#include <uk/essentials.h>
@@ -49,90 +47,11 @@
(UK_HXDF_GRPBYTE | UK_HXDF_GRPWORD | UK_HXDF_GRPDWORD \
| UK_HXDF_GRPQWORD)
-enum _hxd_output_type {
- UK_HXDOUT_FILE = 0,
- UK_HXDOUT_BUFFER,
-#if CONFIG_LIBUKDEBUG_PRINTK
- UK_HXDOUT_KERN,
-#endif
- UK_HXDOUT_DEBUG,
-};
-
-struct _hxd_output {
- enum _hxd_output_type type;
-
- union {
- /* UK_HXDOUT_KERN, UK_HXDOUT_DEBUG */
- struct {
- int lvl; /* UK_HXDOUT_KERN only */
- const char *libname;
- const char *srcname;
- unsigned int srcline;
- } ukprint;
-
- /* UK_HXDOUT_FILE */
- struct {
- FILE *fp;
- } file;
-
- /* UK_HXDOUT_BUFFER */
- struct {
- char *pos;
- size_t left;
- } buffer;
- };
-};
-
-/**
- * Send a formatted string to an output device
- */
-static int _hxd_outf(struct _hxd_output *o, const char *fmt, ...)
-{
- int ret = 0;
- va_list ap;
-
- va_start(ap, fmt);
- switch (o->type) {
- case UK_HXDOUT_FILE:
- /* Use standard libc approach when printing to a file */
- ret = vfprintf(o->file.fp, fmt, ap);
- break;
- case UK_HXDOUT_BUFFER:
- ret = __uk_vsnprintf(o->buffer.pos, o->buffer.left, fmt, ap);
-
- if (ret > 0) {
- /* in order to overwrite '\0' by successive calls,
- * we move the buffer pointer by (ret-1) characters
- */
- o->buffer.pos += (ret - 1);
- o->buffer.left -= (ret - 1);
- }
- break;
- case UK_HXDOUT_DEBUG:
- _uk_vprintd(o->ukprint.libname,
- o->ukprint.srcname, o->ukprint.srcline,
- fmt, ap);
- break;
-#if CONFIG_LIBUKDEBUG_PRINTK
- case UK_HXDOUT_KERN:
- _uk_vprintk(o->ukprint.lvl, o->ukprint.libname,
- o->ukprint.srcname, o->ukprint.srcline,
- fmt, ap);
- break;
-#endif
- default:
- break;
- }
- va_end(ap);
-
- return ret;
-}
-
/**
* Plot one hexdump data line
* This function is called by _hxd()
*/
-static inline size_t _hxd_line(struct _hxd_output *o, const unsigned char
*data,
+static inline size_t _hxd_line(struct out_dev *o, const unsigned char *data,
size_t len, size_t linelen, int flags)
{
size_t i, grplen = 0;
@@ -151,13 +70,13 @@ static inline size_t _hxd_line(struct _hxd_output *o,
const unsigned char *data,
/* hex section */
for (i = 0; i < len; ++i) {
c = *(data + i);
- iret = _hxd_outf(o, "%02x ", (unsigned char)c);
+ iret = outf(o, "%02x ", (unsigned char)c);
if (iret < 0)
return iret;
ret += iret;
if (i && grplen && ((i + 1) % grplen == 0)) {
- iret = _hxd_outf(o, " ");
+ iret = outf(o, " ");
if (iret < 0)
return iret;
ret += iret;
@@ -168,45 +87,45 @@ static inline size_t _hxd_line(struct _hxd_output *o,
const unsigned char *data,
if (flags & UK_HXDF_ASCIISEC) {
/* fillup to align ascii section */
for (; i < linelen; ++i) {
- iret = _hxd_outf(o, " ");
+ iret = outf(o, " ");
if (iret < 0)
return iret;
ret += iret;
if (i && grplen && ((i + 1) % grplen == 0)) {
- iret = _hxd_outf(o, " ");
+ iret = outf(o, " ");
if (iret < 0)
return iret;
ret += iret;
}
}
if (!grplen) {
- iret = _hxd_outf(o, " ");
+ iret = outf(o, " ");
if (iret < 0)
return iret;
ret += iret;
}
/* print ascii characters */
- iret = _hxd_outf(o, "|");
+ iret = outf(o, "|");
if (iret < 0)
return iret;
ret += iret;
for (i = 0; i < len; ++i) {
c = *(data + i);
- iret = _hxd_outf(o, "%c",
- (c >= ' ' && c <= '~') ? c : '.');
+ iret = outf(o, "%c",
+ (c >= ' ' && c <= '~') ? c : '.');
if (iret < 0)
return iret;
ret += iret;
}
- iret = _hxd_outf(o, "|");
+ iret = outf(o, "|");
if (iret < 0)
return iret;
ret += iret;
}
- iret = _hxd_outf(o, "\n");
+ iret = outf(o, "\n");
if (iret < 0)
return iret;
ret += iret;
@@ -227,7 +146,7 @@ static inline size_t _hxd_line(struct _hxd_output *o, const
unsigned char *data,
* @param line_prefix String to be prepended to each line, can be NULL
* @return Returns the number of printed characters to output o
*/
-static int _hxd(struct _hxd_output *o, const void *data, size_t len,
+static int _hxd(struct out_dev *o, const void *data, size_t len,
size_t addr0, int flags, unsigned int grps_per_line,
const char *line_prefix)
{
@@ -266,7 +185,7 @@ static int _hxd(struct _hxd_output *o, const void *data,
size_t len,
((const unsigned char *)data) + i, linebytes)
== 0) {
if (!prevc) {
- iret = _hxd_outf(o, "*\n");
+ iret = outf(o, "*\n");
if (iret < 0)
return iret;
ret += iret;
@@ -278,16 +197,15 @@ static int _hxd(struct _hxd_output *o, const void *data,
size_t len,
prevc = 0;
if (line_prefix) {
- iret = _hxd_outf(o, "%s", line_prefix);
+ iret = outf(o, "%s", line_prefix);
if (iret < 0)
return iret;
ret += iret;
}
if (flags & UK_HXDF_ADDR) {
- iret = _hxd_outf(o, "%08"__PRIuptr
- " ",
- (__uptr)(i + addr0));
+ iret = outf(o, "%08"__PRIuptr" ",
+ (__uptr)(i + addr0));
if (iret < 0)
return iret;
ret += iret;
@@ -308,21 +226,20 @@ int uk_hexdumpsn(char *str, size_t size, const void
*data, size_t len,
size_t addr0, int flags, unsigned int grps_per_line,
const char *line_prefix)
{
- struct _hxd_output o = {.type = UK_HXDOUT_BUFFER,
- .buffer.pos = str,
- .buffer.left = size};
- UK_ASSERT(str != NULL);
+ struct out_dev o;
+ UK_ASSERT(str != NULL);
+ out_dev_init_buffer(&o, str, size);
return _hxd(&o, data, len, addr0, flags, grps_per_line, line_prefix);
}
int uk_hexdumpf(FILE *fp, const void *data, size_t len, size_t addr0, int
flags,
unsigned int grps_per_line, const char *line_prefix)
{
- struct _hxd_output o = {.type = UK_HXDOUT_FILE,
- .file.fp = fp};
- UK_ASSERT(fp != NULL);
+ struct out_dev o;
+ UK_ASSERT(fp != NULL);
+ out_dev_init_file(&o, fp);
return _hxd(&o, data, len, addr0, flags, grps_per_line, line_prefix);
}
@@ -331,11 +248,9 @@ void _uk_hexdumpd(const char *libname, const char *srcname,
size_t addr0, int flags, unsigned int grps_per_line,
const char *line_prefix)
{
- struct _hxd_output o = {.type = UK_HXDOUT_DEBUG,
- .ukprint.libname = libname,
- .ukprint.srcname = srcname,
- .ukprint.srcline = srcline};
+ struct out_dev o;
+ out_dev_init_debug(&o, libname, srcname, srcline);
_hxd(&o, data, len, addr0, flags, grps_per_line, line_prefix);
}
@@ -345,12 +260,9 @@ void _uk_hexdumpk(int lvl, const char *libname, const char
*srcname,
size_t addr0, int flags, unsigned int grps_per_line,
const char *line_prefix)
{
- struct _hxd_output o = {.type = UK_HXDOUT_KERN,
- .ukprint.lvl = lvl,
- .ukprint.libname = libname,
- .ukprint.srcname = srcname,
- .ukprint.srcline = srcline};
+ struct out_dev o;
+ out_dev_init_kern(&o, lvl, libname, srcname, srcline);
_hxd(&o, data, len, addr0, flags, grps_per_line, line_prefix);
}
#endif
diff --git a/lib/ukdebug/outf.c b/lib/ukdebug/outf.c
new file mode 100644
index 00000000..1258be93
--- /dev/null
+++ b/lib/ukdebug/outf.c
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Internal helper for text output redirection
+ *
+ * Authors: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
+ *
+ *
+ * Copyright (c) 2017, NEC Europe Ltd., NEC Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "outf.h"
+
+#include <string.h>
+#include <stdarg.h>
+#include <uk/assert.h>
+#include "snprintf.h"
+
+int outf(struct out_dev *dev, const char *fmt, ...)
+{
+ int ret = 0;
+ va_list ap;
+
+ UK_ASSERT(dev);
+
+ va_start(ap, fmt);
+ switch (dev->type) {
+ case OUTDEV_FILE:
+ /* Use standard libc approach when printing to a file */
+ ret = vfprintf(dev->file.fp, fmt, ap);
+ break;
+ case OUTDEV_BUFFER:
+ ret = __uk_vsnprintf(dev->buffer.pos, dev->buffer.left, fmt,
ap);
+
+ if (ret > 0) {
+ /* in order to overwrite '\0' by successive calls,
+ * we move the buffer pointer by (ret-1) characters
+ */
+ dev->buffer.pos += (ret - 1);
+ dev->buffer.left -= (ret - 1);
+ }
+ break;
+ case OUTDEV_DEBUG:
+ _uk_vprintd(dev->uk_pr.libname,
+ dev->uk_pr.srcname, dev->uk_pr.srcline,
+ fmt, ap);
+ break;
+#if CONFIG_LIBUKDEBUG_PRINTK
+ case OUTDEV_KERN:
+ _uk_vprintk(dev->uk_pr.lvl, dev->uk_pr.libname,
+ dev->uk_pr.srcname, dev->uk_pr.srcline,
+ fmt, ap);
+ break;
+#endif
+ default:
+ break;
+ }
+ va_end(ap);
+
+ return ret;
+}
diff --git a/lib/ukdebug/outf.h b/lib/ukdebug/outf.h
new file mode 100644
index 00000000..c4cd470d
--- /dev/null
+++ b/lib/ukdebug/outf.h
@@ -0,0 +1,114 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Internal helper for text output redirection
+ *
+ * Authors: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
+ *
+ *
+ * Copyright (c) 2020, NEC Europe Ltd., NEC Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __UKDEBUG_INTERNAL_OUTF_H__
+#define __UKDEBUG_INTERNAL_OUTF_H__
+
+#include <uk/config.h>
+#include <inttypes.h>
+#include <stdio.h>
+
+enum out_dev_type {
+ OUTDEV_FILE = 0,
+ OUTDEV_BUFFER,
+#if CONFIG_LIBUKDEBUG_PRINTK
+ OUTDEV_KERN,
+#endif
+ OUTDEV_DEBUG,
+};
+
+struct out_dev {
+ enum out_dev_type type;
+
+ union {
+ /* OUTDEV_KERN, OUTDEV_DEBUG */
+ struct {
+ int lvl; /* OUTDEV_KERN only */
+ const char *libname;
+ const char *srcname;
+ unsigned int srcline;
+ } uk_pr;
+
+ /* UK_HXDOUT_FILE */
+ struct {
+ FILE *fp;
+ } file;
+
+ /* UK_HXDOUT_BUFFER */
+ struct {
+ char *pos;
+ size_t left;
+ } buffer;
+ };
+};
+
+/**
+ * Sends a formatted string to a given output device
+ */
+int outf(struct out_dev *dev, const char *fmt, ...);
+
+#define out_dev_init_file(dev, fp) \
+ do { \
+ (dev)->type = OUTDEV_FILE; \
+ (dev)->file.fp = (fp); \
+ } while (0)
+
+#define out_dev_init_buffer(dev, addr, len) \
+ do { \
+ (dev)->type = OUTDEV_BUFFER; \
+ (dev)->buffer.pos = (addr); \
+ (dev)->buffer.left = (len); \
+ } while (0)
+
+#if CONFIG_LIBUKDEBUG_PRINTK
+#define out_dev_init_kern(dev, lvl, libname, srcname, srcline) \
+ do { \
+ (dev)->type = OUTDEV_KERN; \
+ (dev)->uk_pr.lvl = (lvl); \
+ (dev)->uk_pr.libname = (libname); \
+ (dev)->uk_pr.srcname = (srcname); \
+ (dev)->uk_pr.srcline = (srcline); \
+ } while (0)
+#endif
+
+#define out_dev_init_debug(dev, libname, srcname, srcline) \
+ do { \
+ (dev)->type = OUTDEV_DEBUG; \
+ (dev)->uk_pr.libname = (libname); \
+ (dev)->uk_pr.srcname = (srcname); \
+ (dev)->uk_pr.srcline = (srcline); \
+ } while (0)
+
+#endif /* __UKDEBUG_INTERNAL_OUTF_H__ */
--
2.20.1
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