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* elfread.c (elf_symtab_read): Do not use udata.p here to find 

symbol size.
	* ppc64-tdep.c (ppc64_elf_make_msymbol_special): New function.
	* ppc64-tdep.h (ppc64_elf_make_msymbol_special): Declare.
	* ppc-linux-tdep.c (ppc_linux_init_abi): Set up to use the above.
	* ppcfbsd-tdep.c (ppcfbsd_init_abi): Likewise.
This commit is contained in:
Alan Modra 2013-02-22 23:24:24 +00:00
parent d38b600c90
commit 24c274a133
6 changed files with 38 additions and 13 deletions
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9
gdb/ChangeLog
View File

@ -1,3 +1,12 @@
2013-02-23 Alan Modra <amodra@gmail.com>
* elfread.c (elf_symtab_read): Do not use udata.p here to find
symbol size.
* ppc64-tdep.c (ppc64_elf_make_msymbol_special): New function.
* ppc64-tdep.h (ppc64_elf_make_msymbol_special): Declare.
* ppc-linux-tdep.c (ppc_linux_init_abi): Set up to use the above.
* ppcfbsd-tdep.c (ppcfbsd_init_abi): Likewise.
2013-02-22 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup.

19
gdb/elfread.c
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@ -556,21 +556,14 @@ elf_symtab_read (struct objfile *objfile, int type,
if (msym)
{
/* Pass symbol size field in via BFD. FIXME!!! */
elf_symbol_type *elf_sym;
/* NOTE: uweigand-20071112: A synthetic symbol does not have an
ELF-private part. However, in some cases (e.g. synthetic
'dot' symbols on ppc64) the udata.p entry is set to point back
to the original ELF symbol it was derived from. Get the size
from that symbol. */
ELF-private part. */
if (type != ST_SYNTHETIC)
elf_sym = (elf_symbol_type *) sym;
else
elf_sym = (elf_symbol_type *) sym->udata.p;
if (elf_sym)
SET_MSYMBOL_SIZE (msym, elf_sym->internal_elf_sym.st_size);
{
/* Pass symbol size field in via BFD. FIXME!!! */
elf_symbol_type *elf_sym = (elf_symbol_type *) sym;
SET_MSYMBOL_SIZE (msym, elf_sym->internal_elf_sym.st_size);
}
msym->filename = filesymname;
gdbarch_elf_make_msymbol_special (gdbarch, sym, msym);

3
gdb/ppc-linux-tdep.c
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@ -1336,6 +1336,9 @@ ppc_linux_init_abi (struct gdbarch_info info,
set_gdbarch_convert_from_func_ptr_addr
(gdbarch, ppc64_convert_from_func_ptr_addr);
set_gdbarch_elf_make_msymbol_special (gdbarch,
ppc64_elf_make_msymbol_special);
/* Shared library handling. */
set_gdbarch_skip_trampoline_code (gdbarch, ppc64_skip_trampoline_code);
set_solib_svr4_fetch_link_map_offsets

15
gdb/ppc64-tdep.c
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@ -22,6 +22,7 @@
#include "gdbcore.h"
#include "ppc-tdep.h"
#include "ppc64-tdep.h"
#include "elf-bfd.h"
/* Macros for matching instructions. Note that, since all the
operands are masked off before they're or-ed into the instruction,
@ -361,3 +362,17 @@ ppc64_convert_from_func_ptr_addr (struct gdbarch *gdbarch,
return addr;
}
/* A synthetic 'dot' symbols on ppc64 has the udata.p entry pointing
back to the original ELF symbol it was derived from. Get the size
from that symbol. */
void
ppc64_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym)
{
if ((sym->flags & BSF_SYNTHETIC) != 0 && sym->udata.p != NULL)
{
elf_symbol_type *elf_sym = (elf_symbol_type *) sym->udata.p;
SET_MSYMBOL_SIZE (msym, elf_sym->internal_elf_sym.st_size);
}
}

2
gdb/ppc64-tdep.h
View File

@ -31,4 +31,6 @@ extern CORE_ADDR ppc64_convert_from_func_ptr_addr (struct gdbarch *gdbarch,
CORE_ADDR addr,
struct target_ops *targ);
extern void ppc64_elf_make_msymbol_special (asymbol *,
struct minimal_symbol *);
#endif /* PPC64_TDEP_H */

3
gdb/ppcfbsd-tdep.c
View File

@ -325,6 +325,9 @@ ppcfbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
set_gdbarch_convert_from_func_ptr_addr
(gdbarch, ppc64_convert_from_func_ptr_addr);
set_gdbarch_elf_make_msymbol_special (gdbarch,
ppc64_elf_make_msymbol_special);
set_gdbarch_skip_trampoline_code (gdbarch, ppc64_skip_trampoline_code);
set_solib_svr4_fetch_link_map_offsets (gdbarch,
svr4_lp64_fetch_link_map_offsets);