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70309dc776
When CONFIG_PRINTK_TIME is enabled, add timestamps to boot messages in the same format as regular printk. Timestamps appear only with earlyprintk and are stored in the boot messages ring buffer, but are not propagated to main kernel messages (if earlyprintk is not enabled). This prevents double timestamps in the output. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_S390_BOOT_DATA_H
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#include <linux/string.h>
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#include <asm/setup.h>
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#include <asm/ipl.h>
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extern char early_command_line[COMMAND_LINE_SIZE];
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extern struct ipl_parameter_block ipl_block;
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extern int ipl_block_valid;
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extern int ipl_secure_flag;
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extern unsigned long ipl_cert_list_addr;
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extern unsigned long ipl_cert_list_size;
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extern unsigned long early_ipl_comp_list_addr;
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extern unsigned long early_ipl_comp_list_size;
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extern char boot_rb[PAGE_SIZE * 2];
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extern bool boot_earlyprintk;
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extern size_t boot_rb_off;
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extern char bootdebug_filter[128];
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extern bool bootdebug;
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#define boot_rb_foreach(cb) \
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do { \
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size_t off = boot_rb_off + strlen(boot_rb + boot_rb_off) + 1; \
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size_t len; \
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for (; off < sizeof(boot_rb) && (len = strlen(boot_rb + off)); off += len + 1) \
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cb(boot_rb + off); \
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for (off = 0; off < boot_rb_off && (len = strlen(boot_rb + off)); off += len + 1) \
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cb(boot_rb + off); \
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} while (0)
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/*
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* bootdebug_filter is a comma separated list of strings,
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* where each string can be a prefix of the message.
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*/
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static inline bool bootdebug_filter_match(const char *buf)
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{
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char *p = bootdebug_filter, *s;
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char *end;
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if (!*p)
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return true;
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end = p + strlen(p);
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while (p < end) {
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p = skip_spaces(p);
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s = memscan(p, ',', end - p);
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if (!strncmp(p, buf, s - p))
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return true;
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p = s + 1;
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}
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return false;
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}
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static inline const char *skip_timestamp(const char *buf)
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{
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#ifdef CONFIG_PRINTK_TIME
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const char *p = memchr(buf, ']', strlen(buf));
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if (p && p[1] == ' ')
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return p + 2;
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#endif
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return buf;
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}
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#endif /* _ASM_S390_BOOT_DATA_H */
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