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| author | Frank Ch. Eigler <fche@elastic.org> | 2008-04-12 11:03:19 -0400 |
|---|---|---|
| committer | Frank Ch. Eigler <fche@elastic.org> | 2008-04-12 11:03:19 -0400 |
| commit | 1c86aa2adc1165906057cdde4cc7484468726fc4 (patch) | |
| tree | e4da7047f20489b9fc4b11cf501d42cf59c4b283 /runtime/regs-ia64.c | |
| parent | b53c1feef55dc74501a90257e4beff6c1a9cf03b (diff) | |
| parent | 48899faa2d1280f7715b0abf892fb8b4b5c8ff43 (diff) | |
| download | systemtap-steved-1c86aa2adc1165906057cdde4cc7484468726fc4.tar.gz systemtap-steved-1c86aa2adc1165906057cdde4cc7484468726fc4.tar.xz systemtap-steved-1c86aa2adc1165906057cdde4cc7484468726fc4.zip | |
Merge branch 'master' into unwind
* master:
2008-04-11 David Smith <dsmith@redhat.com>
2008-04-11 David Smith <dsmith@redhat.com>
2008-04-11 David Smith <dsmith@redhat.com>
PR2949: add missing line
PR2949: listings mode (stap -l PROBE)
PR6393: don't bother print build (configure) date any more, with reliable git ids
PR6393: regenerate git_version.h at every make
PR6393: git version tagging at build time
2008-04-09 David Smith <dsmith@redhat.com>
2008-04-04 Masami Hiramatsu <mhiramat@redhat.com>
2008-04-04 David Smith <dsmith@redhat.com>
2008-04-04 Masami Hiramatsu <mhiramat@redhat.com>
removing another part of retired LKET
removing abandoned experiment: safety/* disassembly/symbol checks
Conflicts:
.gitignore
ChangeLog
runtime/ChangeLog
Diffstat (limited to 'runtime/regs-ia64.c')
| -rw-r--r-- | runtime/regs-ia64.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/runtime/regs-ia64.c b/runtime/regs-ia64.c index 2a5a1d17..66dc60f3 100644 --- a/runtime/regs-ia64.c +++ b/runtime/regs-ia64.c @@ -35,7 +35,7 @@ static void ia64_stap_get_arbsp(struct unw_frame_info *info, void *arg) lp->address = 0; } -static long ia64_fetch_register(int regno, struct pt_regs *pt_regs) +static long ia64_fetch_register(int regno, struct pt_regs *pt_regs, unsigned long **cache) { struct ia64_stap_get_arbsp_param pa; @@ -47,12 +47,15 @@ static long ia64_fetch_register(int regno, struct pt_regs *pt_regs) else if (regno < 32 || regno > 127) return 0; - pa.ip = pt_regs->cr_iip; - unw_init_running(ia64_stap_get_arbsp, &pa); - if (pa.address == 0) - return 0; + if (!*cache) { + pa.ip = pt_regs->cr_iip; + unw_init_running(ia64_stap_get_arbsp, &pa); + if (pa.address == 0) + return 0; + *cache = pa.address; + } - return *ia64_rse_skip_regs(pa.address, regno-32); + return *ia64_rse_skip_regs(*cache, regno-32); } static void ia64_store_register(int regno, |