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| author | William Cohen <wcohen@redhat.com> | 2008-06-12 17:35:19 -0400 |
|---|---|---|
| committer | William Cohen <wcohen@redhat.com> | 2008-06-12 17:35:19 -0400 |
| commit | 53c08c2f0a7a03f755d04f0fec7749a0e83d8b45 (patch) | |
| tree | cef2950bcd5d68be549df5bbc1b20b91d1173156 /tapset/context.stp | |
| parent | 3e169dc3f06f718eab93938c7a756104b846a1a6 (diff) | |
| download | systemtap-steved-53c08c2f0a7a03f755d04f0fec7749a0e83d8b45.tar.gz systemtap-steved-53c08c2f0a7a03f755d04f0fec7749a0e83d8b45.tar.xz systemtap-steved-53c08c2f0a7a03f755d04f0fec7749a0e83d8b45.zip | |
Add user_mode function to tapset and document.
Diffstat (limited to 'tapset/context.stp')
| -rw-r--r-- | tapset/context.stp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tapset/context.stp b/tapset/context.stp index 45e3be30..10c52226 100644 --- a/tapset/context.stp +++ b/tapset/context.stp @@ -140,6 +140,18 @@ function registers_valid:long () %{ /* pure */ THIS->__retvalue = (CONTEXT->regs != NULL); %} +function user_mode:long () %{ /* pure */ /* currently a user-mode address? */ + if (CONTEXT->regs) { +#if defined(__i386__) || defined(__x86_64__) + THIS->__retvalue = (uint64_t) user_mode_vm (CONTEXT->regs); +#else + THIS->__retvalue = (uint64_t) user_mode (CONTEXT->regs); +#endif + } else { + THIS->__retvalue = 0; + } +%} + function is_return:long () %{ /* pure */ if (CONTEXT->pi) THIS->__retvalue = 1; |