diff options
Diffstat (limited to 'gdb/ppc-sysv-tdep.c')
| -rw-r--r-- | gdb/ppc-sysv-tdep.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/gdb/ppc-sysv-tdep.c b/gdb/ppc-sysv-tdep.c index ca465e2..51f9c0a 100644 --- a/gdb/ppc-sysv-tdep.c +++ b/gdb/ppc-sysv-tdep.c @@ -51,10 +51,12 @@ ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, struct value *function, int struct_return, CORE_ADDR struct_addr) { struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); - const CORE_ADDR saved_sp = read_sp (); + ULONGEST saved_sp; int argspace = 0; /* 0 is an initial wrong guess. */ int write_pass; + regcache_cooked_read_unsigned (regcache, SP_REGNUM, &saved_sp); + /* Go through the argument list twice. Pass 1: Figure out how much new stack space is required for @@ -578,10 +580,7 @@ ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, struct value *function, { CORE_ADDR func_addr = find_function_addr (function, NULL); struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); - /* By this stage in the proceedings, SP has been decremented by "red - zone size" + "struct return size". Fetch the stack-pointer from - before this and use that as the BACK_CHAIN. */ - const CORE_ADDR back_chain = read_sp (); + ULONGEST back_chain; /* See for-loop comment below. */ int write_pass; /* Size of the Altivec's vector parameter region, the final value is @@ -599,6 +598,11 @@ ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, struct value *function, the possible values of tdep->wordsize. */ gdb_assert (tdep->wordsize == 8); + /* By this stage in the proceedings, SP has been decremented by "red + zone size" + "struct return size". Fetch the stack-pointer from + before this and use that as the BACK_CHAIN. */ + regcache_cooked_read_unsigned (regcache, SP_REGNUM, &back_chain); + /* Go through the argument list twice. Pass 1: Compute the function call's stack space and register |