Re: [Crash-utility] [PATCH] deduplicate kernel_version open-coded parser

On 2023/08/14 22:42, Rafael Aquini wrote: Good to see you again :) Thank you for the clean-up, looks good to me. Acked-by: Kazuhito Hagio <k-hagio-ab(a)nec.com&gt; Thanks, Kazu >> --- >> arm64.c | 27 +++---------------- >> defs.h | 2 ++ >> kernel.c | 77 ++++++++++++++++++++++++++----------------------------- >> riscv64.c | 25 ++---------------- >> 4 files changed, 43 insertions(+), 88 deletions(-) >> >> diff --git a/arm64.c b/arm64.c >> index 67b1a22..39d5f04 100644 >> --- a/arm64.c >> +++ b/arm64.c >> @@ -834,35 +834,14 @@ static struct kernel_va_range_handler kernel_va_range_handlers[] = { >> static unsigned long arm64_get_kernel_version(void) >> { >> char *string; >> - char buf[BUFSIZE]; >> - char *p1, *p2; >> >> if (THIS_KERNEL_VERSION) >> return THIS_KERNEL_VERSION; >> >> - string = pc->read_vmcoreinfo("OSRELEASE"); >> - if (string) { >> - strcpy(buf, string); >> - >> - p1 = p2 = buf; >> - while (*p2 != '.') >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[0] = atoi(p1); >> - >> - p1 = ++p2; >> - while (*p2 != '.') >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[1] = atoi(p1); >> - >> - p1 = ++p2; >> - while ((*p2 >= '0') && (*p2 <= '9')) >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[2] = atoi(p1); >> + if ((string = pc->read_vmcoreinfo("OSRELEASE"))) { >> + parse_kernel_version(string); >> + free(string); >> } >> - free(string); >> return THIS_KERNEL_VERSION; >> } >> >> diff --git a/defs.h b/defs.h >> index 5ee60f1..1925148 100644 >> --- a/defs.h >> +++ b/defs.h >> @@ -6032,6 +6032,8 @@ void clone_bt_info(struct bt_info *, struct bt_info *, struct task_context *); >> void dump_kernel_table(int); >> void dump_bt_info(struct bt_info *, char *where); >> void dump_log(int); >> +void parse_kernel_version(char *); >> + >> #define LOG_LEVEL(v) ((v) & 0x07) >> #define SHOW_LOG_LEVEL (0x1) >> #define SHOW_LOG_DICT (0x2) >> diff --git a/kernel.c b/kernel.c >> index 2114700..988206b 100644 >> --- a/kernel.c >> +++ b/kernel.c >> @@ -104,6 +104,38 @@ static void check_vmcoreinfo(void); >> static int is_pvops_xen(void); >> static int get_linux_banner_from_vmlinux(char *, size_t); >> >> +/* >> + * popuplate the global kernel table (kt) with kernel version >> + * information parsed from UTSNAME/OSRELEASE string >> + */ >> +void >> +parse_kernel_version(char *str) >> +{ >> + char *p1, *p2, separator; >> + >> + p1 = p2 = str; >> + while (*p2 != '.' && *p2 != '\0') >> + p2++; >> + >> + *p2 = NULLCHAR; >> + kt->kernel_version[0] = atoi(p1); >> + p1 = ++p2; >> + while (*p2 != '.' && *p2 != '-' && *p2 != '\0') >> + p2++; >> + >> + separator = *p2; >> + *p2 = NULLCHAR; >> + kt->kernel_version[1] = atoi(p1); >> + >> + if (separator == '.') { >> + p1 = ++p2; >> + while ((*p2 >= '0') && (*p2 <= '9')) >> + p2++; >> + >> + *p2 = NULLCHAR; >> + kt->kernel_version[2] = atoi(p1); >> + } >> +} >> >> /* >> * Gather a few kernel basics. >> @@ -112,7 +144,7 @@ void >> kernel_init() >> { >> int i, c; >> - char *p1, *p2, buf[BUFSIZE]; >> + char buf[BUFSIZE]; >> struct syment *sp1, *sp2; >> char *rqstruct; >> char *rq_timestamp_name = NULL; >> @@ -270,28 +302,7 @@ kernel_init() >> if (buf[64]) >> buf[64] = NULLCHAR; >> if (ascii_string(kt->utsname.release)) { >> - char separator; >> - >> - p1 = p2 = buf; >> - while (*p2 != '.') >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[0] = atoi(p1); >> - p1 = ++p2; >> - while (*p2 != '.' && *p2 != '-' && *p2 != '\0') >> - p2++; >> - separator = *p2; >> - *p2 = NULLCHAR; >> - kt->kernel_version[1] = atoi(p1); >> - *p2 = separator; >> - if (*p2 == '.') { >> - p1 = ++p2; >> - while ((*p2 >= '0') && (*p2 <= '9')) >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[2] = atoi(p1); >> - } else >> - kt->kernel_version[2] = 0; >> + parse_kernel_version(buf); >> >> if (CRASHDEBUG(1)) >> fprintf(fp, "base kernel version: %d.%d.%d\n", >> @@ -10973,8 +10984,6 @@ void >> get_log_from_vmcoreinfo(char *file) >> { >> char *string; >> - char buf[BUFSIZE]; >> - char *p1, *p2; >> struct vmcoreinfo_data *vmc = &kt->vmcoreinfo; >> >> if (!(pc->flags2 & VMCOREINFO)) >> @@ -10986,22 +10995,8 @@ get_log_from_vmcoreinfo(char *file) >> if ((string = pc->read_vmcoreinfo("OSRELEASE"))) { >> if (CRASHDEBUG(1)) >> fprintf(fp, "OSRELEASE: %s\n", string); >> - strcpy(buf, string); >> - p1 = p2 = buf; >> - while (*p2 != '.') >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[0] = atoi(p1); >> - p1 = ++p2; >> - while (*p2 != '.') >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[1] = atoi(p1); >> - p1 = ++p2; >> - while ((*p2 >= '0') && (*p2 <= '9')) >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[2] = atoi(p1); >> + >> + parse_kernel_version(string); >> >> if (CRASHDEBUG(1)) >> fprintf(fp, "base kernel version: %d.%d.%d\n", >> diff --git a/riscv64.c b/riscv64.c >> index 6b9a688..066cf2c 100644 >> --- a/riscv64.c >> +++ b/riscv64.c >> @@ -259,33 +259,12 @@ riscv64_processor_speed(void) >> static unsigned long riscv64_get_kernel_version(void) >> { >> char *string; >> - char buf[BUFSIZE]; >> - char *p1, *p2; >> >> if (THIS_KERNEL_VERSION) >> return THIS_KERNEL_VERSION; >> >> - string = pc->read_vmcoreinfo("OSRELEASE"); >> - if (string) { >> - strcpy(buf, string); >> - >> - p1 = p2 = buf; >> - while (*p2 != '.') >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[0] = atoi(p1); >> - >> - p1 = ++p2; >> - while (*p2 != '.') >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[1] = atoi(p1); >> - >> - p1 = ++p2; >> - while ((*p2 >= '0') && (*p2 <= '9')) >> - p2++; >> - *p2 = NULLCHAR; >> - kt->kernel_version[2] = atoi(p1); >> + if ((string = pc->read_vmcoreinfo("OSRELEASE"))) { >> + parse_kernel_version(string); >> free(string); >> } >> return THIS_KERNEL_VERSION; >> -- >> 2.41.0 >> > > -- > Crash-utility mailing list > Crash-utility(a)redhat.com > https://listman.redhat.com/mailman/listinfo/crash-utility > Contribution Guidelines: https://github.com/crash-utility/crash/wiki