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author | Jeff Law <law@redhat.com> | 1996-04-12 22:42:03 +0000 |
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committer | Jeff Law <law@redhat.com> | 1996-04-12 22:42:03 +0000 |
commit | 132fdcb974ba05bdb2338292e9bbabce9c48a973 (patch) | |
tree | df78674e8a04ddfa5e68f9a977a52d82833587da /sim | |
parent | c6fbd98bed167d79e49c0d4a38b5432853f11799 (diff) | |
download | gdb-132fdcb974ba05bdb2338292e9bbabce9c48a973.zip gdb-132fdcb974ba05bdb2338292e9bbabce9c48a973.tar.gz gdb-132fdcb974ba05bdb2338292e9bbabce9c48a973.tar.bz2 |
* compile.c (sim_load): Re-allocate memory for the simulator
here.
HMSE.
Diffstat (limited to 'sim')
-rw-r--r-- | sim/h8300/ChangeLog | 5 | ||||
-rw-r--r-- | sim/h8300/compile.c | 33 |
2 files changed, 38 insertions, 0 deletions
diff --git a/sim/h8300/ChangeLog b/sim/h8300/ChangeLog index 04d5624..b20fc31 100644 --- a/sim/h8300/ChangeLog +++ b/sim/h8300/ChangeLog @@ -1,3 +1,8 @@ +Fri Apr 12 16:44:10 1996 Jeffrey A Law (law@cygnus.com) + + * compile.c (sim_load): Re-allocate memory for the simulator + here. + Fri Apr 12 09:39:56 1996 Jeffrey A Law (law@cygnus.com) * compile.c (sim_resume): Fix and simplify overflow and carry diff --git a/sim/h8300/compile.c b/sim/h8300/compile.c index cf1e9bc..b7e1c29 100644 --- a/sim/h8300/compile.c +++ b/sim/h8300/compile.c @@ -1875,6 +1875,39 @@ sim_load (prog, from_tty) bfd_close (abfd); } + /* If we're using gdb attached to the simulator, then we have to + reallocate memory for the simulator. + + When gdb first starts, it calls fetch_registers (among other + functions), which in turn calls init_pointers, which allocates + simulator memory. + + The problem is when we do that, we don't know whether we're + debugging an h8/300 or h8/300h program. + + This is the first point at which we can make that determination, + so we just reallocate memory now; this will also allow us to handle + switching between h8/300 and h8/300h programs without exiting + gdb. */ + if (h8300hmode) + memory_size = H8300H_MSIZE; + else + memory_size = H8300_MSIZE; + + if (cpu.memory) + free (cpu.memory); + if (cpu.cache_idx) + free (cpu.cache_idx); + + cpu.memory = (unsigned char *) calloc (sizeof (char), memory_size); + cpu.cache_idx = (unsigned short *) calloc (sizeof (short), memory_size); + cpu.eightbit = (unsigned char *) calloc (sizeof (char), 256); + + /* `msize' must be a power of two */ + if ((memory_size & (memory_size - 1)) != 0) + abort (); + cpu.mask = memory_size - 1; + /* Return non-zero so gdb will handle it. */ return 1; } |