diff options
Diffstat (limited to 'usr/src/uts/common/dtrace/dtrace.c')
| -rw-r--r-- | usr/src/uts/common/dtrace/dtrace.c | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/usr/src/uts/common/dtrace/dtrace.c b/usr/src/uts/common/dtrace/dtrace.c index 26d3be2a9e..159a4cb14a 100644 --- a/usr/src/uts/common/dtrace/dtrace.c +++ b/usr/src/uts/common/dtrace/dtrace.c @@ -3904,7 +3904,54 @@ dtrace_dif_subr(uint_t subr, uint_t rd, uint64_t *regs, break; } - case DIF_SUBR_GETMAJOR: + case DIF_SUBR_TOUPPER: + case DIF_SUBR_TOLOWER: { + uintptr_t s = tupregs[0].dttk_value; + uint64_t size = state->dts_options[DTRACEOPT_STRSIZE]; + char *dest = (char *)mstate->dtms_scratch_ptr, c; + size_t len = dtrace_strlen((char *)s, size); + char lower, upper, convert; + int64_t i; + + if (subr == DIF_SUBR_TOUPPER) { + lower = 'a'; + upper = 'z'; + convert = 'A'; + } else { + lower = 'A'; + upper = 'Z'; + convert = 'a'; + } + + if (!dtrace_canload(s, len + 1, mstate, vstate)) { + regs[rd] = NULL; + break; + } + + if (!DTRACE_INSCRATCH(mstate, size)) { + DTRACE_CPUFLAG_SET(CPU_DTRACE_NOSCRATCH); + regs[rd] = NULL; + break; + } + + for (i = 0; i < size - 1; i++) { + if ((c = dtrace_load8(s + i)) == '\0') + break; + + if (c >= lower && c <= upper) + c = convert + (c - lower); + + dest[i] = c; + } + + ASSERT(i < size); + dest[i] = '\0'; + regs[rd] = (uintptr_t)dest; + mstate->dtms_scratch_ptr += size; + break; + } + +case DIF_SUBR_GETMAJOR: #ifdef _LP64 regs[rd] = (tupregs[0].dttk_value >> NBITSMINOR64) & MAXMAJ64; #else |