mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-09-30 03:12:07 +00:00
0648b13269
Rename the sections used for defining sandbox command line options so that they don't start with a '.'. ELF says that sections starting with a '.' are reserved for system use, but the sandbox runs as a normal user process so should be using user sections instead. Clang's ASAN adds redzones to non-user sections and the extra padding meant that the list of options was being corrupted. Naming the sections as user sections avoids this issue as clang handles them as we intended. Signed-off-by: Andrew Scull <ascull@google.com>
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
|
|
* Code for setting up command line flags like `./u-boot --help`
|
|
*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
*
|
|
* Licensed under the GPL-2 or later.
|
|
*/
|
|
|
|
#ifndef __SANDBOX_GETOPT_H
|
|
#define __SANDBOX_GETOPT_H
|
|
|
|
struct sandbox_state;
|
|
|
|
/*
|
|
* Internal structure for storing details about the flag.
|
|
* Most people should not have to dig around in this as
|
|
* it only gets parsed by the core sandbox code. End
|
|
* consumer code should focus on the macros below and
|
|
* the callback function.
|
|
*/
|
|
struct sandbox_cmdline_option {
|
|
/* The long flag name: "help" for "--help" */
|
|
const char *flag;
|
|
/* The (optional) short flag name: "h" for "-h" */
|
|
int flag_short;
|
|
/* The help string shown to the user when processing --help */
|
|
const char *help;
|
|
/* Whether this flag takes an argument */
|
|
int has_arg;
|
|
/* Callback into the end consumer code with the option */
|
|
int (*callback)(struct sandbox_state *state, const char *opt);
|
|
};
|
|
|
|
/*
|
|
* Internal macro to expand the lower macros into the necessary
|
|
* magic junk that makes this all work.
|
|
*/
|
|
#define _SANDBOX_CMDLINE_OPT(f, s, ha, h) \
|
|
static struct sandbox_cmdline_option sandbox_cmdline_option_##f = { \
|
|
.flag = #f, \
|
|
.flag_short = s, \
|
|
.help = h, \
|
|
.has_arg = ha, \
|
|
.callback = sandbox_cmdline_cb_##f, \
|
|
}; \
|
|
/* Ppointer to the struct in a special section for the linker script */ \
|
|
static __used __section("_u_boot_sandbox_getopt") \
|
|
struct sandbox_cmdline_option \
|
|
*sandbox_cmdline_option_##f##_ptr = \
|
|
&sandbox_cmdline_option_##f
|
|
|
|
/**
|
|
* Macros for end code to declare new command line flags.
|
|
*
|
|
* @param f The long flag name e.g. help
|
|
* @param ha Does the flag have an argument e.g. 0/1
|
|
* @param h The help string displayed when showing --help
|
|
*
|
|
* This invocation:
|
|
* SANDBOX_CMDLINE_OPT(foo, 0, "The foo arg");
|
|
* Will create a new flag named "--foo" (no short option) that takes
|
|
* no argument. If the user specifies "--foo", then the callback func
|
|
* sandbox_cmdline_cb_foo() will automatically be called.
|
|
*/
|
|
#define SANDBOX_CMDLINE_OPT(f, ha, h) _SANDBOX_CMDLINE_OPT(f, 0, ha, h)
|
|
/*
|
|
* Same as above, but @s is used to specify a short flag e.g.
|
|
* SANDBOX_CMDLINE_OPT(foo, 'f', 0, "The foo arg");
|
|
*/
|
|
#define SANDBOX_CMDLINE_OPT_SHORT(f, s, ha, h) _SANDBOX_CMDLINE_OPT(f, s, ha, h)
|
|
|
|
#endif
|