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apps/examples: In elf and nxflat examples, remove low-level interfaces and replace with call to exec().

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This commit is contained in:
Gregory Nutt 2017-10-02 14:32:17 -06:00
parent 661a593939
commit 56814bec38
4 changed files with 61 additions and 96 deletions
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1
examples/elf/Kconfig
View File

@ -6,6 +6,7 @@
config EXAMPLES_ELF
bool "ELF Loader Example"
default n
select LIBC_EXECFUNCS
---help---
Enable the ELF loader example

82
examples/elf/elf_main.c
View File

@ -50,10 +50,9 @@
#include <debug.h>
#include <errno.h>
#include <nuttx/symtab.h>
#include <nuttx/drivers/ramdisk.h>
#include <nuttx/binfmt/binfmt.h>
#include <nuttx/binfmt/elf.h>
#include <nuttx/binfmt/symtab.h>
#include "platform/cxxinitialize.h"
@ -107,27 +106,29 @@
*/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG_FEATURES
# define message(format, ...) _info(format, ##__VA_ARGS__)
# define errmsg(format, ...) _err(format, ##__VA_ARGS__)
# ifdef CONFIG_DEBUG_INFO
# define message(format, ...) syslog(LOG_INFO, format, ##__VA_ARGS__)
# else
# define message(format, ...) printf(format, ##__VA_ARGS__)
# endif
# ifdef CONFIG_DEBUG_ERROR
# define errmsg(format, ...) syslog(LOG_ERR, format, ##__VA_ARGS__)
# else
# define errmsg(format, ...) fprintf(stderr, format, ##__VA_ARGS__)
# endif
#else
# ifdef CONFIG_DEBUG_FEATURES
# ifdef CONFIG_DEBUG_INFO
# define message _info
# define errmsg _err
# else
# define message printf
# endif
# ifdef CONFIG_DEBUG_ERROR
# define errmsg _err
# else
# define errmsg printf
# endif
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
@ -223,13 +224,13 @@ int main(int argc, FAR char *argv[])
int elf_main(int argc, char *argv[])
#endif
{
struct binary_s bin;
FAR char *args[1];
int ret;
int i;
#if defined(CONFIG_EXAMPLES_ELF_CXXINITIALIZE)
/* Call all C++ static constructors */
#if defined(CONFIG_EXAMPLES_ELF_CXXINITIALIZE)
up_cxxinitialize();
#endif
@ -237,27 +238,16 @@ int elf_main(int argc, char *argv[])
mm_initmonitor();
/* Initialize the ELF binary loader */
message("Initializing the ELF binary loader\n");
ret = elf_initialize();
if (ret < 0)
{
errmsg("ERROR: Initialization of the ELF loader failed: %d\n", ret);
exit(1);
}
mm_update(&g_mmstep, "after elf_initialize");
/* Create a ROM disk for the ROMFS filesystem */
message("Registering romdisk at /dev/ram%d\n", CONFIG_EXAMPLES_ELF_DEVMINOR);
ret = romdisk_register(CONFIG_EXAMPLES_ELF_DEVMINOR, (FAR uint8_t *)romfs_img,
message("Registering romdisk at /dev/ram%d\n",
CONFIG_EXAMPLES_ELF_DEVMINOR);
ret = romdisk_register(CONFIG_EXAMPLES_ELF_DEVMINOR,
(FAR uint8_t *)romfs_img,
NSECTORS(romfs_img_len), SECTORSIZE);
if (ret < 0)
{
errmsg("ERROR: romdisk_register failed: %d\n", ret);
elf_uninitialize();
exit(1);
}
@ -273,17 +263,16 @@ int elf_main(int argc, char *argv[])
{
errmsg("ERROR: mount(%s,%s,romfs) failed: %s\n",
CONFIG_EXAMPLES_ELF_DEVPATH, MOUNTPT, errno);
elf_uninitialize();
}
mm_update(&g_mmstep, "after mount");
#if defined(CONFIG_BINFMT_EXEPATH) && !defined(CONFIG_PATH_INITIAL)
/* Does the system support the PATH variable? Has the PATH variable
* already been set? If YES and NO, then set the PATH variable to
* the ROMFS mountpoint.
*/
#if defined(CONFIG_BINFMT_EXEPATH) && !defined(CONFIG_PATH_INITIAL)
(void)setenv("PATH", MOUNTPT, 1);
#endif
@ -291,16 +280,14 @@ int elf_main(int argc, char *argv[])
for (i = 0; dirlist[i]; i++)
{
FAR const char *filename;
/* Output a seperated so that we can clearly discrinmate the output of
* this program from the others.
*/
testheader(dirlist[i]);
/* Initialize the binary_s structure */
memset(&bin, 0, sizeof(struct binary_s));
/* If the binary loader does not support the PATH variable, then
* create the full path to the executable program. Otherwise,
* use the relative path so that the binary loader will have to
@ -308,34 +295,22 @@ int elf_main(int argc, char *argv[])
*/
#ifdef CONFIG_BINFMT_EXEPATH
bin.filename = dirlist[i];
filename = dirlist[i];
#else
snprintf(fullpath, 128, "%s/%s", MOUNTPT, dirlist[i]);
bin.filename = fullpath;
filename = fullpath;
#endif
bin.exports = exports;
bin.nexports = nexports;
/* Load the ELF module */
ret = load_module(&bin);
if (ret < 0)
{
errmsg("ERROR: Failed to load program '%s'\n", dirlist[i]);
exit(1);
}
mm_update(&g_mmstep, "after load_module");
/* Execute the ELF module */
ret = exec_module(&bin);
args[0] = NULL;
ret = exec(filename, args, exports, nexports);
mm_update(&g_mmstep, "after exec_module");
mm_update(&g_mmstep, "after exec");
if (ret < 0)
{
errmsg("ERROR: Failed to execute program '%s'\n", dirlist[i]);
errmsg("ERROR: exec(%s) failed: %d\n", dirlist[i], errno);
}
else
{
@ -343,8 +318,7 @@ int elf_main(int argc, char *argv[])
sleep(4);
}
unload_module(&bin);
mm_update(&g_mmstep, "after unload_module");
mm_update(&g_mmstep, "after program execution");
}
mm_update(&g_mmstep, "End-of-Test");

1
examples/nxflat/Kconfig
View File

@ -6,6 +6,7 @@
config EXAMPLES_NXFLAT
bool "NXFLAT example"
default n
select LIBC_EXECFUNCS
depends on NXFLAT && BUILD_FLAT
---help---
Enable the NXFLAT example

73
examples/nxflat/nxflat_main.c
View File

@ -1,7 +1,7 @@
/****************************************************************************
* examples/nxflat/nxflat_main.c
*
* Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
* Copyright (C) 2009, 2011, 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -49,9 +49,9 @@
#include <debug.h>
#include <errno.h>
#include <nuttx/symtab.h>
#include <nuttx/drivers/ramdisk.h>
#include <nuttx/binfmt/binfmt.h>
#include <nuttx/binfmt/nxflat.h>
#include "tests/romfs.h"
#include "tests/dirlist.h"
@ -96,32 +96,34 @@
#define ROMFSDEV "/dev/ram0"
#define MOUNTPT "/mnt/romfs"
/* If CONFIG_DEBUG_FEATURES is enabled, use info/err instead of printf so that the
* output will be synchronous with the debug output.
/* If CONFIG_DEBUG_FEATURES is enabled, use info/err instead of printf so
* that the output will be synchronous with the debug output.
*/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG_FEATURES
# define message(format, ...) _info(format, ##__VA_ARGS__)
# define errmsg(format, ...) _err(format, ##__VA_ARGS__)
# ifdef CONFIG_DEBUG_INFO
# define message(format, ...) syslog(LOG_INFO, format, ##__VA_ARGS__)
# else
# define message(format, ...) printf(format, ##__VA_ARGS__)
# endif
# ifdef CONFIG_DEBUG_ERROR
# define errmsg(format, ...) syslog(LOG_ERR, format, ##__VA_ARGS__)
# else
# define errmsg(format, ...) fprintf(stderr, format, ##__VA_ARGS__)
# endif
#else
# ifdef CONFIG_DEBUG_FEATURES
# ifdef CONFIG_DEBUG_INFO
# define message _info
# define errmsg _err
# else
# define message printf
# endif
# ifdef CONFIG_DEBUG_ERROR
# define errmsg _err
# else
# define errmsg printf
# endif
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
@ -160,28 +162,18 @@ int main(int argc, FAR char *argv[])
int nxflat_main(int argc, char *argv[])
#endif
{
struct binary_s bin;
FAR char *args[1];
int ret;
int i;
/* Initialize the NXFLAT binary loader */
message("Initializing the NXFLAT binary loader\n");
ret = nxflat_initialize();
if (ret < 0)
{
errmsg("ERROR: Initialization of the NXFLAT loader failed: %d\n", ret);
exit(1);
}
/* Create a ROM disk for the ROMFS filesystem */
message("Registering romdisk\n");
ret = romdisk_register(0, (FAR uint8_t *)romfs_img, NSECTORS(romfs_img_len), SECTORSIZE);
ret = romdisk_register(0, (FAR uint8_t *)romfs_img,
NSECTORS(romfs_img_len), SECTORSIZE);
if (ret < 0)
{
errmsg("ERROR: romdisk_register failed: %d\n", ret);
nxflat_uninitialize();
exit(1);
}
@ -195,15 +187,14 @@ int nxflat_main(int argc, char *argv[])
{
errmsg("ERROR: mount(%s,%s,romfs) failed: %s\n",
ROMFSDEV, MOUNTPT, errno);
nxflat_uninitialize();
}
#if defined(CONFIG_BINFMT_EXEPATH) && !defined(CONFIG_PATH_INITIAL)
/* Does the system support the PATH variable? Has the PATH variable
* already been set? If YES and NO, then set the PATH variable to
* the ROMFS mountpoint.
*/
#if defined(CONFIG_BINFMT_EXEPATH) && !defined(CONFIG_PATH_INITIAL)
(void)setenv("PATH", MOUNTPT, 1);
#endif
@ -211,16 +202,14 @@ int nxflat_main(int argc, char *argv[])
for (i = 0; dirlist[i]; i++)
{
FAR const char *filename;
/* Output a seperated so that we can clearly discrinmate the output of
* this program from the others.
*/
testheader(dirlist[i]);
/* Initialize the binary_s structure */
memset(&bin, 0, sizeof(struct binary_s));
/* If the binary loader does not support the PATH variable, then
* create the full path to the executable program. Otherwise,
* use the relative path so that the binary loader will have to
@ -228,17 +217,16 @@ int nxflat_main(int argc, char *argv[])
*/
#ifdef CONFIG_BINFMT_EXEPATH
bin.filename = dirlist[i];
filename = dirlist[i];
#else
snprintf(fullpath, 128, "%s/%s", MOUNTPT, dirlist[i]);
bin.filename = fullpath;
filename = fullpath;
#endif
bin.exports = exports;
bin.nexports = NEXPORTS;
/* Load the NXFLAT module */
ret = load_module(&bin);
args[0] = NULL;
ret = exec(filename, args, exports, NEXPORTS);
if (ret < 0)
{
errmsg("ERROR: Failed to load program '%s'\n", dirlist[i]);
@ -250,12 +238,13 @@ int nxflat_main(int argc, char *argv[])
ret = exec_module(&bin);
if (ret < 0)
{
errmsg("ERROR: Failed to execute program '%s'\n", dirlist[i]);
unload_module(&bin);
errmsg("ERROR: exec(%s) failed: %d\n", dirlist[i], errno);
}
else
{
message("Wait a bit for test completion\n");
sleep(4);
}
message("Wait a bit for test completion\n");
sleep(4);
}
message("End-of-Test.. Exit-ing\n");