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| author | Josh Stone <jistone@redhat.com> | 2010-04-01 15:18:01 -0700 |
|---|---|---|
| committer | Josh Stone <jistone@redhat.com> | 2010-04-01 15:21:05 -0700 |
| commit | b70cb5c663255b46ece13e6758a5cb3e58d9a95c (patch) | |
| tree | be609dbec8fccba9febc5e988dd467962edc3b75 /runtime | |
| parent | cba1d02def7a84d79dc8b40506b661db0973ccf5 (diff) | |
| download | systemtap-steved-b70cb5c663255b46ece13e6758a5cb3e58d9a95c.tar.gz systemtap-steved-b70cb5c663255b46ece13e6758a5cb3e58d9a95c.tar.xz systemtap-steved-b70cb5c663255b46ece13e6758a5cb3e58d9a95c.zip | |
Add kernel-writing functions for guru only
* runtime/loc2c-runtime.h (store_deref_string): New.
* tapset/conversions-guru.stp (set_kernel_*): New guru functions.
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/loc2c-runtime.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/runtime/loc2c-runtime.h b/runtime/loc2c-runtime.h index c75639ee..bd1faa51 100644 --- a/runtime/loc2c-runtime.h +++ b/runtime/loc2c-runtime.h @@ -1011,6 +1011,17 @@ extern void __store_deref_bad(void); (dst); \ }) +#define store_deref_string(src, addr, maxbytes) \ + ({ \ + uintptr_t _addr; \ + size_t _len; \ + char *_s = (src); \ + for (_len = (maxbytes), _addr = (uintptr_t)(addr); \ + _len > 1 && _s && *_s != '\0'; --_len, ++_addr) \ + store_deref(1, _addr, *_s++); \ + store_deref(1, _addr, '\0'); \ + }) + #define CATCH_DEREF_FAULT() \ if (0) { \ deref_fault: ; \ |