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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2022-10-04 17:48:00 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2022-10-05 08:35:59 +0200 |
| commit | a7e32851c5712f8821874c2e264f81f512d90bac (patch) | |
| tree | f145e7b1cfbd350d52bbd1de11d01edaa14a879c /arch/sandbox | |
| parent | a8b788ba61eb813f87cc8b401da662a463a9548c (diff) | |
| download | barebox-a7e32851c5712f8821874c2e264f81f512d90bac.tar.gz barebox-a7e32851c5712f8821874c2e264f81f512d90bac.tar.xz | |
sandbox: implement DEBUG_LL support
We can't currently debug malloc() or early parts of the driver model on
sandbox, because we require both to allocate the sandbox console device.
To make debugging such early startup easier in future, add some simple
DEBUG_LL support.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20221004154800.3457742-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/sandbox')
| -rw-r--r-- | arch/sandbox/Kconfig | 1 | ||||
| -rw-r--r-- | arch/sandbox/Makefile | 3 | ||||
| -rw-r--r-- | arch/sandbox/include/asm/debug_ll.h | 16 |
3 files changed, 19 insertions, 1 deletions
diff --git a/arch/sandbox/Kconfig b/arch/sandbox/Kconfig index a8bca8757f..d3889fcac0 100644 --- a/arch/sandbox/Kconfig +++ b/arch/sandbox/Kconfig @@ -16,6 +16,7 @@ config SANDBOX select ARCH_HAS_STACK_DUMP if ASAN select GENERIC_FIND_NEXT_BIT select HAS_ARCH_SJLJ + select HAS_ASM_DEBUG_LL default y config ARCH_TEXT_BASE diff --git a/arch/sandbox/Makefile b/arch/sandbox/Makefile index aee6bccc9c..d5ba05ba86 100644 --- a/arch/sandbox/Makefile +++ b/arch/sandbox/Makefile @@ -30,7 +30,8 @@ KBUILD_CFLAGS += -Dmalloc=barebox_malloc -Dcalloc=barebox_calloc \ -Dopendir=barebox_opendir -Dreaddir=barebox_readdir \ -Dclosedir=barebox_closedir -Dreadlink=barebox_readlink \ -Doptarg=barebox_optarg -Doptind=barebox_optind \ - -Dsetjmp=barebox_setjmp -Dlongjmp=barebox_longjmp + -Dsetjmp=barebox_setjmp -Dlongjmp=barebox_longjmp \ + -Dputchar=barebox_putchar machdirs := $(patsubst %,arch/sandbox/mach-%/,$(machine-y)) diff --git a/arch/sandbox/include/asm/debug_ll.h b/arch/sandbox/include/asm/debug_ll.h new file mode 100644 index 0000000000..7bef871058 --- /dev/null +++ b/arch/sandbox/include/asm/debug_ll.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __ASM_DEBUG_LL__ +#define __ASM_DEBUG_LL__ + +#undef putchar + +static inline void PUTC_LL(char ch) +{ + int putchar(int c); + putchar(ch); +} + +#define putchar barebox_putchar + +#endif /* __ASM_DEBUG_LL__ */ |