Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-09-30 11:22:09 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/arch/sandbox/include/asm/sections.h

40 lines
895 B
C
Raw Normal View History

sandbox: add getopt support This adds simple command-line parsing to sandbox. The idea is that it sets up the state with options provided, and this state can then be queried later, as needed. New flags are declared with the SB_CMDLINE_OPT_SHORT helper macro, pointers are automatically gathered up in a special section, and then the core code takes care of gathering them up and processing at runtime. This way there is no central place where we have to store a list of flags with ifdefs. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-02-15 23:51:16 +00:00
/*
* decls for symbols defined in the linker script
*
* Copyright (c) 2012 The Chromium OS Authors.
*
* Licensed under the GPL-2 or later.
*/
#ifndef __SANDBOX_SECTIONS_H
#define __SANDBOX_SECTIONS_H
Introduce generic link section.h symbol files We create a separate header file for link symbols defined by the link scripts. It is helpful to have these all in one place and try to make them common across architectures. Since Linux already has a similar file, we bring this in even though many of the symbols there are not relevant to us. Each architecture has its own asm/sections.h where symbols specifc to that architecture can be added. For now everything except AVR32 just includes the generic header. One change is needed in arch/avr32/lib/board.c to make this conversion work. Reviewed-by: Tom Rini <trini@ti.com> (version 5) Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-05 14:39:37 +00:00
#include <asm-generic/sections.h>
sandbox: Rename sb_cmdline_option to sandbox_cmdline_option The new name is longer but more clearly related to sandbox. This is in a separate patch within the same series since some comments on the SPI series rely on it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Hung-ying Tyan <tyanh@chromium.org>
2013-12-03 23:43:23 +00:00
struct sandbox_cmdline_option;
sandbox: add getopt support This adds simple command-line parsing to sandbox. The idea is that it sets up the state with options provided, and this state can then be queried later, as needed. New flags are declared with the SB_CMDLINE_OPT_SHORT helper macro, pointers are automatically gathered up in a special section, and then the core code takes care of gathering them up and processing at runtime. This way there is no central place where we have to store a list of flags with ifdefs. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-02-15 23:51:16 +00:00
sandbox: use sections instead of symbols for getopt array boundaries In style of linked lists, instead of declaring symbols for boundaries of getopt options array in the linker script, declare corresponding sections and retrieve the boundaries via static inline functions. Without this clang's LTO produces binary without any getopt options, because for some reason it thinks that array is empty (start and end symbols are at the same address). Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-05-20 11:24:06 +00:00
static inline struct sandbox_cmdline_option **
__u_boot_sandbox_option_start(void)
{
static char start[0] __aligned(4) __attribute__((unused))
__section(".u_boot_sandbox_getopt_start");
return (struct sandbox_cmdline_option **)&start;
}
static inline struct sandbox_cmdline_option **
__u_boot_sandbox_option_end(void)
{
static char end[0] __aligned(4) __attribute__((unused))
__section(".u_boot_sandbox_getopt_end");
return (struct sandbox_cmdline_option **)&end;
}
sandbox: add getopt support This adds simple command-line parsing to sandbox. The idea is that it sets up the state with options provided, and this state can then be queried later, as needed. New flags are declared with the SB_CMDLINE_OPT_SHORT helper macro, pointers are automatically gathered up in a special section, and then the core code takes care of gathering them up and processing at runtime. This way there is no central place where we have to store a list of flags with ifdefs. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-02-15 23:51:16 +00:00
static inline size_t __u_boot_sandbox_option_count(void)
{
sandbox: use sections instead of symbols for getopt array boundaries In style of linked lists, instead of declaring symbols for boundaries of getopt options array in the linker script, declare corresponding sections and retrieve the boundaries via static inline functions. Without this clang's LTO produces binary without any getopt options, because for some reason it thinks that array is empty (start and end symbols are at the same address). Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-05-20 11:24:06 +00:00
return __u_boot_sandbox_option_end() - __u_boot_sandbox_option_start();
sandbox: add getopt support This adds simple command-line parsing to sandbox. The idea is that it sets up the state with options provided, and this state can then be queried later, as needed. New flags are declared with the SB_CMDLINE_OPT_SHORT helper macro, pointers are automatically gathered up in a special section, and then the core code takes care of gathering them up and processing at runtime. This way there is no central place where we have to store a list of flags with ifdefs. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-02-15 23:51:16 +00:00
}
#endif
Reference in a new issue Copy permalink