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| author | Prerna Saxena <prerna@linux.vnet.ibm.com> | 2010-02-21 01:44:25 +0530 |
|---|---|---|
| committer | Prerna Saxena <prerna@linux.vnet.ibm.com> | 2010-02-21 01:44:25 +0530 |
| commit | bb0a4e12bea719cab1f114d9013204a4480e03b0 (patch) | |
| tree | f7537692661a031caeeafb903fcd11d1f17a51d1 | |
| parent | b47f3a559e3987a25412b04d840d49e1d4cabf10 (diff) | |
| download | systemtap-steved-bb0a4e12bea719cab1f114d9013204a4480e03b0.tar.gz systemtap-steved-bb0a4e12bea719cab1f114d9013204a4480e03b0.tar.xz systemtap-steved-bb0a4e12bea719cab1f114d9013204a4480e03b0.zip | |
Translator enablement of Hardware breakpoints for s390
| -rw-r--r-- | tapsets.cxx | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/tapsets.cxx b/tapsets.cxx index 6460d2d3..fdf48883 100644 --- a/tapsets.cxx +++ b/tapsets.cxx @@ -5460,8 +5460,12 @@ void hwbkpt_derived_probe::join_group (systemtap_session& s) s.hwbkpt_derived_probes->max_hwbkpt_probes_by_arch = 4; else { //TODO: Add code for other archs too + if (s.architecture == "s390" ) + s.hwbkpt_derived_probes->max_hwbkpt_probes_by_arch = 1; + else { s.hwbkpt_derived_probes->max_hwbkpt_probes_by_arch = 0; throw semantic_error ("Hardware Breakpoints not supported on arch " + s.architecture); + } } } s.hwbkpt_derived_probes->enroll (this, s); @@ -5517,7 +5521,7 @@ hwbkpt_derived_probe_group::emit_module_decls (systemtap_session& s) s.op->newline() << "const unsigned long address;"; s.op->newline() << "uint8_t atype;"; - s.op->newline() << "uint8_t len;"; + s.op->newline() << "unsigned int len;"; s.op->newline() << "void (* const ph) (struct context*);"; s.op->newline() << "} stap_hwbkpt_probes[] = {"; s.op->indent(1); @@ -5534,10 +5538,13 @@ hwbkpt_derived_probe_group::emit_module_decls (systemtap_session& s) switch(p->hwbkpt_access){ case HWBKPT_READ: s.op->line() << " .atype=HW_BREAKPOINT_R ,"; + break; case HWBKPT_WRITE: s.op->line() << " .atype=HW_BREAKPOINT_W ,"; + break; case HWBKPT_RW: s.op->line() << " .atype=HW_BREAKPOINT_R|HW_BREAKPOINT_W ,"; + break; }; s.op->line() << " .len=" << p->hwbkpt_len << ","; s.op->line() << " .pp=" << lex_cast_qstring (*p->sole_location()) << ","; @@ -5589,6 +5596,7 @@ hwbkpt_derived_probe_group::emit_module_init (systemtap_session& s) s.op->newline() << " sdp->registered_p = 0;"; s.op->newline() << " } "; s.op->newline() << " } "; + s.op->newline() << " hp->bp_type = sdp->atype;"; if (s.architecture == "i386" || s.architecture == "x86_64" ) { s.op->newline() << " switch(sdp->len) {"; s.op->newline() << " case 1:"; @@ -5611,12 +5619,18 @@ hwbkpt_derived_probe_group::emit_module_init (systemtap_session& s) s.op->newline() << " _stp_warn(\"Probe %s registration skipped : unsupported length. Supported lengths for x86 are 1,2,4 {8 for x86_84 only} \",sdp->pp);"; s.op->newline() << " sdp->registered_p = 0;"; s.op->newline() << " }"; - s.op->newline() << " hp->bp_type = sdp->atype;"; s.op->newline() << " if (sdp->atype == HW_BREAKPOINT_R) {"; s.op->newline() << " _stp_warn(\"Probe %s registration skipped : READ-ONLY hardware breakpoints not supported on x86\",sdp->pp);"; s.op->newline() << " sdp->registered_p = 0;"; s.op->newline() << " }"; } // end of x86 / x86_64 specific checks + if (s.architecture == "s390" ) { + s.op->newline() << " hp->bp_len = sdp->len;"; + s.op->newline() << " if (sdp->atype != HW_BREAKPOINT_W) {"; + s.op->newline() << " _stp_warn(\"Probe %s registration skipped : READ / RW hardware breakpoints not supported on s390\",sdp->pp);"; + s.op->newline() << " sdp->registered_p = 0;"; + s.op->newline() << " }"; + } // end of s390 specific checks s.op->newline() << "probe_point = sdp->pp;"; // for error messages s.op->newline() << "if ( sdp->registered_p ) {"; s.op->newline() << " stap_hwbkpt_ret_array[i] = register_wide_hw_breakpoint( hp, (void *)&enter_hwbkpt_probe );"; |