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2002-03-22 Elena Zannoni <ezannoni@redhat.com>

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* ppc-linux-tdep.c (ppc_sysv_abi_use_struct_convention): New
        function.
	* ppc-tdep.h (ppc_sysv_abi_use_struct_convention): Export.
        * rs6000-tdep.c (rs6000_gdbarch_init): Use different
        structure returning convention for SYSV ABI case, but not
        for GNU/Linux, FreeBSD, or NetBSD.
This commit is contained in:
Elena Zannoni 2002-03-22 21:58:16 +00:00
parent 3121eff097
commit 8e0662df17
4 changed files with 39 additions and 2 deletions
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9
gdb/ChangeLog
View File

@ -1,3 +1,12 @@
2002-03-22 Elena Zannoni <ezannoni@redhat.com>
* ppc-linux-tdep.c (ppc_sysv_abi_use_struct_convention): New
function.
* ppc-tdep.h (ppc_sysv_abi_use_struct_convention): Export.
* rs6000-tdep.c (rs6000_gdbarch_init): Use different
structure returning convention for SYSV ABI case, but not
for GNU/Linux, FreeBSD, or NetBSD.
2002-03-22 Daniel Jacobowitz <drow@mvista.com> 2002-03-22 Daniel Jacobowitz <drow@mvista.com>
* symtab.h (lookup_block_symbol): Add mangled_name argument * symtab.h (lookup_block_symbol): Add mangled_name argument

8
gdb/ppc-linux-tdep.c
View File

@ -414,6 +414,14 @@ ppc_linux_frame_chain (struct frame_info *thisframe)
it may be used generically by ports which use either the SysV ABI or it may be used generically by ports which use either the SysV ABI or
the EABI */ the EABI */
/* Structures 8 bytes or less long are returned in the r3 & r4
registers, according to the SYSV ABI. */
int
ppc_sysv_abi_use_struct_convention (int gcc_p, struct type *value_type)
{
return (TYPE_LENGTH (value_type) > 8);
}
/* round2 rounds x up to the nearest multiple of s assuming that s is a /* round2 rounds x up to the nearest multiple of s assuming that s is a
power of 2 */ power of 2 */

1
gdb/ppc-tdep.h
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@ -31,6 +31,7 @@ void ppc_linux_init_extra_frame_info (int fromleaf, struct frame_info *);
int ppc_linux_frameless_function_invocation (struct frame_info *); int ppc_linux_frameless_function_invocation (struct frame_info *);
void ppc_linux_frame_init_saved_regs (struct frame_info *); void ppc_linux_frame_init_saved_regs (struct frame_info *);
CORE_ADDR ppc_linux_frame_chain (struct frame_info *); CORE_ADDR ppc_linux_frame_chain (struct frame_info *);
int ppc_sysv_abi_use_struct_convention (int, struct type *);
CORE_ADDR ppc_sysv_abi_push_arguments (int, struct value **, CORE_ADDR, int, CORE_ADDR ppc_sysv_abi_push_arguments (int, struct value **, CORE_ADDR, int,
CORE_ADDR); CORE_ADDR);
int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache); int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);

23
gdb/rs6000-tdep.c
View File

@ -2563,8 +2563,6 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_store_struct_return (gdbarch, rs6000_store_struct_return); set_gdbarch_store_struct_return (gdbarch, rs6000_store_struct_return);
set_gdbarch_store_return_value (gdbarch, rs6000_store_return_value); set_gdbarch_store_return_value (gdbarch, rs6000_store_return_value);
set_gdbarch_extract_struct_value_address (gdbarch, rs6000_extract_struct_value_address); set_gdbarch_extract_struct_value_address (gdbarch, rs6000_extract_struct_value_address);
set_gdbarch_use_struct_convention (gdbarch, generic_use_struct_convention);
set_gdbarch_pop_frame (gdbarch, rs6000_pop_frame); set_gdbarch_pop_frame (gdbarch, rs6000_pop_frame);
set_gdbarch_skip_prologue (gdbarch, rs6000_skip_prologue); set_gdbarch_skip_prologue (gdbarch, rs6000_skip_prologue);
@ -2576,6 +2574,27 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Not sure on this. FIXMEmgo */ /* Not sure on this. FIXMEmgo */
set_gdbarch_frame_args_skip (gdbarch, 8); set_gdbarch_frame_args_skip (gdbarch, 8);
/* Until November 2001, gcc was not complying to the SYSV ABI for
returning structures less than or equal to 8 bytes in size. It was
returning everything in memory. When this was corrected, it wasn't
fixed for native platforms. */
if (sysv_abi)
{
if (osabi == ELFOSABI_LINUX
|| osabi == ELFOSABI_NETBSD
|| osabi == ELFOSABI_FREEBSD)
set_gdbarch_use_struct_convention (gdbarch,
generic_use_struct_convention);
else
set_gdbarch_use_struct_convention (gdbarch,
ppc_sysv_abi_use_struct_convention);
}
else
{
set_gdbarch_use_struct_convention (gdbarch,
generic_use_struct_convention);
}
set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid); set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
if (osabi == ELFOSABI_LINUX) if (osabi == ELFOSABI_LINUX)
{ {