diff options
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/ChangeLog | 11 | ||||
| -rw-r--r-- | runtime/print.c | 24 | ||||
| -rw-r--r-- | runtime/regs-ia64.c | 3 | ||||
| -rw-r--r-- | runtime/uprobes/Makefile | 6 |
4 files changed, 37 insertions, 7 deletions
diff --git a/runtime/ChangeLog b/runtime/ChangeLog index e6079bea..8fa11695 100644 --- a/runtime/ChangeLog +++ b/runtime/ChangeLog @@ -1,3 +1,14 @@ +2007-11-14 Zhaolei <zhaolei@cn.fujitsu.com> + + From Cai Fei <caifei@cn.fujitsu.com> + * regs-ia64.c (ia64_fetch_register): Fix the bug of fetching + register 12 on IA64. + +2007-11-12 Martin Hunt <hunt@redhat.com> + + * print.c (_stp_print): Rewrite to eliminate the strlen() + call and save a bit of time. + 2007-11-09 Masami Hiramatsu <mhiramat@redhat.com> PR3858 diff --git a/runtime/print.c b/runtime/print.c index 326d67d5..a451f622 100644 --- a/runtime/print.c +++ b/runtime/print.c @@ -210,16 +210,26 @@ void _stp_printf (const char *fmt, ...) void _stp_print (const char *str) { - int num = strlen (str); _stp_pbuf *pb = per_cpu_ptr(Stp_pbuf, smp_processor_id()); - int size = STP_BUFFER_SIZE - pb->len; - if (unlikely(num >= size)) { + char *end = pb->buf + STP_BUFFER_SIZE; + char *ptr = pb->buf + pb->len; + char *instr = (char *)str; + + while (ptr < end && *instr) + *ptr++ = *instr++; + + /* Did loop terminate due to lack of buffer space? */ + if (unlikely(*instr)) { + /* Don't break strings across subbufs. */ + /* Restart after flushing. */ _stp_print_flush(); - if (num > STP_BUFFER_SIZE) - num = STP_BUFFER_SIZE; + end = pb->buf + STP_BUFFER_SIZE; + ptr = pb->buf + pb->len; + instr = (char *)str; + while (ptr < end && *instr) + *ptr++ = *instr++; } - memcpy (pb->buf + pb->len, str, num); - pb->len += num; + pb->len = ptr - pb->buf; } void _stp_print_char (const char c) diff --git a/runtime/regs-ia64.c b/runtime/regs-ia64.c index 50bf17d7..2a5a1d17 100644 --- a/runtime/regs-ia64.c +++ b/runtime/regs-ia64.c @@ -39,6 +39,9 @@ static long ia64_fetch_register(int regno, struct pt_regs *pt_regs) { struct ia64_stap_get_arbsp_param pa; + if (regno == 12) + return pt_regs->r12; + if (regno >= 8 && regno <= 11) return *(unsigned long *)(&pt_regs->r8 + regno - 8); else if (regno < 32 || regno > 127) diff --git a/runtime/uprobes/Makefile b/runtime/uprobes/Makefile index 806f7c48..40af7aa2 100644 --- a/runtime/uprobes/Makefile +++ b/runtime/uprobes/Makefile @@ -1,10 +1,16 @@ obj-m := uprobes.o KDIR := /lib/modules/$(shell uname -r)/build PWD := $(shell pwd) +DEPENDENCIES := $(shell echo uprobes_arch.[ch] uprobes.[ch] uprobes_*.[ch]) +DEPENDENCIES += Makefile $(KDIR)/Module.symvers default: $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules +# This target is used with "make -q" to see whether a "real" build is needed. +uprobes.ko: $(DEPENDENCIES) + @echo uprobes.ko is not a valid target. See Makefile. + clean: rm -f *.mod.c *.ko *.o .*.cmd *~ rm -rf .tmp_versions |