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2003-09-11 Andrew Cagney <cagney@redhat.com>

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* rs6000-tdep.c (rs6000_push_dummy_call): Use
	regcache_raw_write_signed to set SP_REGNUM, move the operation to
	near the function's end.
	(rs6000_gdbarch_init): Do not set "deprecated_dummy_write_sp".
	* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Use
	regcache_raw_write_signed to set SP_REGNUM.
This commit is contained in:
Andrew Cagney 2003-09-11 19:27:25 +00:00
parent 63cd24fec9
commit 33a7c2fc4d
3 changed files with 17 additions and 14 deletions
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9
gdb/ChangeLog
View File

@ -1,3 +1,12 @@
2003-09-11 Andrew Cagney <cagney@redhat.com>
* rs6000-tdep.c (rs6000_push_dummy_call): Use
regcache_raw_write_signed to set SP_REGNUM, move the operation to
near the function's end.
(rs6000_gdbarch_init): Do not set "deprecated_dummy_write_sp".
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Use
regcache_raw_write_signed to set SP_REGNUM.
2003-09-11 Elena Zannoni <ezannoni@redhat.com>
* symfile.c (symbol_file_add_with_addrs_or_offsets): Make sure

4
gdb/ppc-sysv-tdep.c
View File

@ -189,8 +189,8 @@ ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr,
/* Make sure that we maintain 16 byte alignment */
sp &= ~0x0f;
/* Update %sp before proceeding any further */
write_register (SP_REGNUM, sp);
/* Update %sp before proceeding any further. */
regcache_raw_write_signed (regcache, SP_REGNUM, sp);
/* write the backchain */
store_unsigned_integer (old_sp_buf, 4, saved_sp);

18
gdb/rs6000-tdep.c
View File

@ -1246,14 +1246,6 @@ ran_out_of_registers_for_arguments:
space = (space + 15) & -16;
sp -= space;
/* This is another instance we need to be concerned about
securing our stack space. If we write anything underneath %sp
(r1), we might conflict with the kernel who thinks he is free
to use this area. So, update %sp first before doing anything
else. */
write_register (SP_REGNUM, sp);
/* If the last argument copied into the registers didn't fit there
completely, push the rest of it into stack. */
@ -1294,14 +1286,17 @@ ran_out_of_registers_for_arguments:
ii += ((len + 3) & -4) / 4;
}
}
else
/* Secure stack areas first, before doing anything else. */
write_register (SP_REGNUM, sp);
/* set back chain properly */
store_unsigned_integer (tmp_buffer, 4, saved_sp);
write_memory (sp, tmp_buffer, 4);
/* Set the stack pointer. According to the ABI, the SP is ment to
be set _before_ the corresponding stack space is used. No need
for that here though - the target has been completly stopped - it
isn't possible for an exception handler to stomp on the stack. */
regcache_raw_write_signed (regcache, SP_REGNUM, sp);
/* Point the inferior function call's return address at the dummy's
breakpoint. */
regcache_raw_write_signed (regcache, tdep->ppc_lr_regnum, bp_addr);
@ -2896,7 +2891,6 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_print_insn (gdbarch, gdb_print_insn_powerpc);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
set_gdbarch_deprecated_dummy_write_sp (gdbarch, deprecated_write_sp);
set_gdbarch_num_regs (gdbarch, v->nregs);
set_gdbarch_num_pseudo_regs (gdbarch, v->npregs);