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gerrit.openbmc.org / stefanberger / openbmc / d5ac0a49d05cc46085c8ace63f2f94a11af42f66 / . / poky / meta / recipes-devtools / systemd-bootchart / systemd-bootchart / 0002-musl-does-not-provide-printf-h.patch
blob: 196272f7a257ba0d09897d197a32268ed06b3475 [file] [log] [blame]
From 6f9454184a02310802b1ed3e40287958b524a495 Mon Sep 17 00:00:00 2001
From: Tim Orling <timothy.t.orling@linux.intel.com>
Date: Thu, 28 Dec 2017 21:39:51 -0800
Subject: [PATCH 2/3] musl does not provide printf.h
Reuse the approach from systemd:
systemd/0001-add-fallback-parse_printf_format-implementation.patch
Original patch author: Emil Renner Berthing <systemd@esmil.dk>
Includes work by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Tim Orling <timothy.t.orling@linux.intel.com>
---
Upstream-Status: Pending
Makefile.am | 4 +
configure.ac | 3 +
src/log.c | 1 +
src/parse-printf-format.c | 273 ++++++++++++++++++++++++++++++++++++++++++++++
src/parse-printf-format.h | 57 ++++++++++
src/stdio-util.h | 1 -
6 files changed, 338 insertions(+), 1 deletion(-)
create mode 100644 src/parse-printf-format.c
create mode 100644 src/parse-printf-format.h
diff --git a/Makefile.am b/Makefile.am
index 9bbc8fa..b887d16 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -169,6 +169,10 @@ libutils_la_SOURCES = \
src/util.c \
src/util.h
+if !HAVE_PRINTF_H
+libutils_la_SOURCES += src/parse-printf-format.c
+endif
+
libutils_la_CFLAGS = \
$(AM_CFLAGS) \
$(LIBSYSTEMD_CFLAGS)
diff --git a/configure.ac b/configure.ac
index 7f74bac..062e310 100644
--- a/configure.ac
+++ b/configure.ac
@@ -73,6 +73,9 @@ AS_IF([test "x$with_libsystemd" != xno],
)]
)
+AC_CHECK_HEADERS([printf.h], [], [])
+AM_CONDITIONAL(HAVE_PRINTF_H, [test "x$ac_cv_header_print_h" = xyes])
+
CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
-pipe \
-Wall \
diff --git a/src/log.c b/src/log.c
index 15dec83..aecf231 100644
--- a/src/log.c
+++ b/src/log.c
@@ -28,6 +28,7 @@
#include <sys/uio.h>
#include <unistd.h>
+#include "parse-printf-format.h"
#include "sd-messages.h"
#include "fd-util.h"
diff --git a/src/parse-printf-format.c b/src/parse-printf-format.c
new file mode 100644
index 0000000..49437e5
--- /dev/null
+++ b/src/parse-printf-format.c
@@ -0,0 +1,273 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Emil Renner Berthing <systemd@esmil.dk>
+
+ With parts from the musl C library
+ Copyright 2005-2014 Rich Felker, et al.
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stddef.h>
+#include <string.h>
+
+#include "parse-printf-format.h"
+
+static const char *consume_nonarg(const char *fmt)
+{
+ do {
+ if (*fmt == '\0')
+ return fmt;
+ } while (*fmt++ != '%');
+ return fmt;
+}
+
+static const char *consume_num(const char *fmt)
+{
+ for (;*fmt >= '0' && *fmt <= '9'; fmt++)
+ /* do nothing */;
+ return fmt;
+}
+
+static const char *consume_argn(const char *fmt, size_t *arg)
+{
+ const char *p = fmt;
+ size_t val = 0;
+
+ if (*p < '1' || *p > '9')
+ return fmt;
+ do {
+ val = 10*val + (*p++ - '0');
+ } while (*p >= '0' && *p <= '9');
+
+ if (*p != '$')
+ return fmt;
+ *arg = val;
+ return p+1;
+}
+
+static const char *consume_flags(const char *fmt)
+{
+ while (1) {
+ switch (*fmt) {
+ case '#':
+ case '0':
+ case '-':
+ case ' ':
+ case '+':
+ case '\'':
+ case 'I':
+ fmt++;
+ continue;
+ }
+ return fmt;
+ }
+}
+
+enum state {
+ BARE,
+ LPRE,
+ LLPRE,
+ HPRE,
+ HHPRE,
+ BIGLPRE,
+ ZTPRE,
+ JPRE,
+ STOP
+};
+
+enum type {
+ NONE,
+ PTR,
+ INT,
+ UINT,
+ ULLONG,
+ LONG,
+ ULONG,
+ SHORT,
+ USHORT,
+ CHAR,
+ UCHAR,
+ LLONG,
+ SIZET,
+ IMAX,
+ UMAX,
+ PDIFF,
+ UIPTR,
+ DBL,
+ LDBL,
+ MAXTYPE
+};
+
+static const short pa_types[MAXTYPE] = {
+ [NONE] = PA_INT,
+ [PTR] = PA_POINTER,
+ [INT] = PA_INT,
+ [UINT] = PA_INT,
+ [ULLONG] = PA_INT | PA_FLAG_LONG_LONG,
+ [LONG] = PA_INT | PA_FLAG_LONG,
+ [ULONG] = PA_INT | PA_FLAG_LONG,
+ [SHORT] = PA_INT | PA_FLAG_SHORT,
+ [USHORT] = PA_INT | PA_FLAG_SHORT,
+ [CHAR] = PA_CHAR,
+ [UCHAR] = PA_CHAR,
+ [LLONG] = PA_INT | PA_FLAG_LONG_LONG,
+ [SIZET] = PA_INT | PA_FLAG_LONG,
+ [IMAX] = PA_INT | PA_FLAG_LONG_LONG,
+ [UMAX] = PA_INT | PA_FLAG_LONG_LONG,
+ [PDIFF] = PA_INT | PA_FLAG_LONG_LONG,
+ [UIPTR] = PA_INT | PA_FLAG_LONG,
+ [DBL] = PA_DOUBLE,
+ [LDBL] = PA_DOUBLE | PA_FLAG_LONG_DOUBLE
+};
+
+#define S(x) [(x)-'A']
+#define E(x) (STOP + (x))
+
+static const unsigned char states[]['z'-'A'+1] = {
+ { /* 0: bare types */
+ S('d') = E(INT), S('i') = E(INT),
+ S('o') = E(UINT),S('u') = E(UINT),S('x') = E(UINT), S('X') = E(UINT),
+ S('e') = E(DBL), S('f') = E(DBL), S('g') = E(DBL), S('a') = E(DBL),
+ S('E') = E(DBL), S('F') = E(DBL), S('G') = E(DBL), S('A') = E(DBL),
+ S('c') = E(CHAR),S('C') = E(INT),
+ S('s') = E(PTR), S('S') = E(PTR), S('p') = E(UIPTR),S('n') = E(PTR),
+ S('m') = E(NONE),
+ S('l') = LPRE, S('h') = HPRE, S('L') = BIGLPRE,
+ S('z') = ZTPRE, S('j') = JPRE, S('t') = ZTPRE
+ }, { /* 1: l-prefixed */
+ S('d') = E(LONG), S('i') = E(LONG),
+ S('o') = E(ULONG),S('u') = E(ULONG),S('x') = E(ULONG),S('X') = E(ULONG),
+ S('e') = E(DBL), S('f') = E(DBL), S('g') = E(DBL), S('a') = E(DBL),
+ S('E') = E(DBL), S('F') = E(DBL), S('G') = E(DBL), S('A') = E(DBL),
+ S('c') = E(INT), S('s') = E(PTR), S('n') = E(PTR),
+ S('l') = LLPRE
+ }, { /* 2: ll-prefixed */
+ S('d') = E(LLONG), S('i') = E(LLONG),
+ S('o') = E(ULLONG),S('u') = E(ULLONG),
+ S('x') = E(ULLONG),S('X') = E(ULLONG),
+ S('n') = E(PTR)
+ }, { /* 3: h-prefixed */
+ S('d') = E(SHORT), S('i') = E(SHORT),
+ S('o') = E(USHORT),S('u') = E(USHORT),
+ S('x') = E(USHORT),S('X') = E(USHORT),
+ S('n') = E(PTR),
+ S('h') = HHPRE
+ }, { /* 4: hh-prefixed */
+ S('d') = E(CHAR), S('i') = E(CHAR),
+ S('o') = E(UCHAR),S('u') = E(UCHAR),
+ S('x') = E(UCHAR),S('X') = E(UCHAR),
+ S('n') = E(PTR)
+ }, { /* 5: L-prefixed */
+ S('e') = E(LDBL),S('f') = E(LDBL),S('g') = E(LDBL), S('a') = E(LDBL),
+ S('E') = E(LDBL),S('F') = E(LDBL),S('G') = E(LDBL), S('A') = E(LDBL),
+ S('n') = E(PTR)
+ }, { /* 6: z- or t-prefixed (assumed to be same size) */
+ S('d') = E(PDIFF),S('i') = E(PDIFF),
+ S('o') = E(SIZET),S('u') = E(SIZET),
+ S('x') = E(SIZET),S('X') = E(SIZET),
+ S('n') = E(PTR)
+ }, { /* 7: j-prefixed */
+ S('d') = E(IMAX), S('i') = E(IMAX),
+ S('o') = E(UMAX), S('u') = E(UMAX),
+ S('x') = E(UMAX), S('X') = E(UMAX),
+ S('n') = E(PTR)
+ }
+};
+
+size_t parse_printf_format(const char *fmt, size_t n, int *types)
+{
+ size_t i = 0;
+ size_t last = 0;
+
+ memset(types, 0, n);
+
+ while (1) {
+ size_t arg;
+ unsigned int state;
+
+ fmt = consume_nonarg(fmt);
+ if (*fmt == '\0')
+ break;
+ if (*fmt == '%') {
+ fmt++;
+ continue;
+ }
+ arg = 0;
+ fmt = consume_argn(fmt, &arg);
+ /* flags */
+ fmt = consume_flags(fmt);
+ /* width */
+ if (*fmt == '*') {
+ size_t warg = 0;
+ fmt = consume_argn(fmt+1, &warg);
+ if (warg == 0)
+ warg = ++i;
+ if (warg > last)
+ last = warg;
+ if (warg <= n && types[warg-1] == NONE)
+ types[warg-1] = INT;
+ } else
+ fmt = consume_num(fmt);
+ /* precision */
+ if (*fmt == '.') {
+ fmt++;
+ if (*fmt == '*') {
+ size_t parg = 0;
+ fmt = consume_argn(fmt+1, &parg);
+ if (parg == 0)
+ parg = ++i;
+ if (parg > last)
+ last = parg;
+ if (parg <= n && types[parg-1] == NONE)
+ types[parg-1] = INT;
+ } else {
+ if (*fmt == '-')
+ fmt++;
+ fmt = consume_num(fmt);
+ }
+ }
+ /* length modifier and conversion specifier */
+ state = BARE;
+ do {
+ unsigned char c = *fmt++;
+
+ if (c < 'A' || c > 'z')
+ continue;
+ state = states[state]S(c);
+ if (state == 0)
+ continue;
+ } while (state < STOP);
+
+ if (state == E(NONE))
+ continue;
+
+ if (arg == 0)
+ arg = ++i;
+ if (arg > last)
+ last = arg;
+ if (arg <= n)
+ types[arg-1] = state - STOP;
+ }
+
+ if (last > n)
+ last = n;
+ for (i = 0; i < last; i++)
+ types[i] = pa_types[types[i]];
+
+ return last;
+}
diff --git a/src/parse-printf-format.h b/src/parse-printf-format.h
new file mode 100644
index 0000000..4371177
--- /dev/null
+++ b/src/parse-printf-format.h
@@ -0,0 +1,57 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Emil Renner Berthing <systemd@esmil.dk>
+
+ With parts from the GNU C Library
+ Copyright 1991-2014 Free Software Foundation, Inc.
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#pragma once
+
+#include "config.h"
+
+#ifdef HAVE_PRINTF_H
+#include <printf.h>
+#else
+
+#include <stddef.h>
+
+enum { /* C type: */
+ PA_INT, /* int */
+ PA_CHAR, /* int, cast to char */
+ PA_WCHAR, /* wide char */
+ PA_STRING, /* const char *, a '\0'-terminated string */
+ PA_WSTRING, /* const wchar_t *, wide character string */
+ PA_POINTER, /* void * */
+ PA_FLOAT, /* float */
+ PA_DOUBLE, /* double */
+ PA_LAST
+};
+
+/* Flag bits that can be set in a type returned by `parse_printf_format'. */
+#define PA_FLAG_MASK 0xff00
+#define PA_FLAG_LONG_LONG (1 << 8)
+#define PA_FLAG_LONG_DOUBLE PA_FLAG_LONG_LONG
+#define PA_FLAG_LONG (1 << 9)
+#define PA_FLAG_SHORT (1 << 10)
+#define PA_FLAG_PTR (1 << 11)
+
+size_t parse_printf_format(const char *fmt, size_t n, int *types);
+
+#endif /* HAVE_PRINTF_H */
diff --git a/src/stdio-util.h b/src/stdio-util.h
index 0a67557..21cc515 100644
--- a/src/stdio-util.h
+++ b/src/stdio-util.h
@@ -19,7 +19,6 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <printf.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
--
2.13.6