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sim: msp430: set initial PC to ELF entry if available

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If we want to run a simple ELF, the reset vector isn't set up, so starting
at address 0 doesn't make sense.  Use the ELF's entry point instead.
This commit is contained in:
Mike Frysinger 2014-03-08 00:20:11 -05:00
parent a3271a3e6c
commit 7b0278dcad
2 changed files with 11 additions and 1 deletions
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5
sim/msp430/ChangeLog
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@ -1,3 +1,8 @@
2014-03-10 Mike Frysinger <vapier@gentoo.org>
* msp430-sim.c (sim_create_inferior): Set new_pc to the result of
bfd_get_start_address when abfd is not NULL and new_pc is zero.
2014-03-10 Mike Frysinger <vapier@gentoo.org>
* msp430-sim (maybe_perform_syscall): Change %d to %ld.

7
sim/msp430/msp430-sim.c
View file

@ -249,9 +249,14 @@ sim_create_inferior (SIM_DESC sd,
int c;
int new_pc;
/* Set the PC to the default reset vector if available. */
c = sim_core_read_buffer (sd, MSP430_CPU (sd), read_map, resetv, 0xfffe, 2);
new_pc = resetv[0] + 256 * resetv[1];
/* If the reset vector isn't initialized, then use the ELF entry. */
if (abfd != NULL && !new_pc)
new_pc = bfd_get_start_address (abfd);
sim_pc_set (MSP430_CPU (sd), new_pc);
msp430_pc_store (MSP430_CPU (sd), new_pc);