darkkirb/old-cross-binutils
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

* sim-resume.c (sim_resume): Add local variable sig_to_deliver to

Browse source 
avoid possible longjmp problems with automatic variable siggnal.
This commit is contained in:
Andrew Cagney 2002-07-15 16:13:12 +00:00
parent 7c43edc1d2
commit 39248af88f
2 changed files with 16 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
sim/common/ChangeLog
View file

@ -1,3 +1,8 @@
2002-07-15 Andrew Cagney <ac131313@redhat.com>
* sim-resume.c (sim_resume): Add local variable sig_to_deliver to
avoid possible longjmp problems with automatic variable siggnal.
2002-07-14 Andrew Cagney <ac131313@redhat.com> 2002-07-14 Andrew Cagney <ac131313@redhat.com>
From 2002-07-11 Momchil Velikov <velco@fadata.bg>: From 2002-07-11 Momchil Velikov <velco@fadata.bg>:

17
sim/common/sim-resume.c
View file

@ -65,24 +65,29 @@ sim_resume (SIM_DESC sd,
int last_cpu_nr = sim_engine_last_cpu_nr (sd); int last_cpu_nr = sim_engine_last_cpu_nr (sd);
int next_cpu_nr = sim_engine_next_cpu_nr (sd); int next_cpu_nr = sim_engine_next_cpu_nr (sd);
int nr_cpus = sim_engine_nr_cpus (sd); int nr_cpus = sim_engine_nr_cpus (sd);
int sig_to_deliver;
sim_events_preprocess (sd, last_cpu_nr >= nr_cpus, next_cpu_nr >= nr_cpus); sim_events_preprocess (sd, last_cpu_nr >= nr_cpus, next_cpu_nr >= nr_cpus);
if (next_cpu_nr >= nr_cpus) if (next_cpu_nr >= nr_cpus)
next_cpu_nr = 0; next_cpu_nr = 0;
/* Only deliver the siggnal ]sic] the first time through - don't /* Only deliver the SIGGNAL [sic] the first time through - don't
re-deliver any siggnal during a restart. */ re-deliver any SIGGNAL during a restart. NOTE: A new local
if (jmpval == sim_engine_restart_jmpval) variable is used to avoid problems with the automatic
siggnal = 0; variable ``siggnal'' being trashed by a long jump. */
if (jmpval == sim_engine_start_jmpval)
sig_to_deliver = siggnal;
else
sig_to_deliver = 0;
#ifdef SIM_CPU_EXCEPTION_RESUME #ifdef SIM_CPU_EXCEPTION_RESUME
{ {
sim_cpu* cpu = STATE_CPU (sd, next_cpu_nr); sim_cpu* cpu = STATE_CPU (sd, next_cpu_nr);
SIM_CPU_EXCEPTION_RESUME(sd, cpu, siggnal); SIM_CPU_EXCEPTION_RESUME(sd, cpu, sig_to_deliver);
} }
#endif #endif
sim_engine_run (sd, next_cpu_nr, nr_cpus, siggnal); sim_engine_run (sd, next_cpu_nr, nr_cpus, sig_to_deliver);
} }
engine->jmpbuf = NULL; engine->jmpbuf = NULL;