From 85bf2b9128ab5c220ae036533fe44c3868cc26a7 Mon Sep 17 00:00:00 2001 From: Jeff Johnston Date: Wed, 5 Nov 2003 20:32:42 +0000 Subject: [PATCH] 2003-11-05 Jeff Johnston * ia64-tdep.c (struct gdbarch_tdep): Remove os_ident field. (ia64_gdbarch_init): Don't bother calculating the os. Instead use the gdbarch_info struct and look at the osabi field. Also use gdbarch_list_lookup_by_info() to look for a candidate gdbarch. --- gdb/ChangeLog | 8 ++++++++ gdb/ia64-tdep.c | 41 ++++++----------------------------------- 2 files changed, 14 insertions(+), 35 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index cc820940f7..8b3e3f4ecf 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2003-11-05 Jeff Johnston + + * ia64-tdep.c (struct gdbarch_tdep): Remove os_ident field. + (ia64_gdbarch_init): Don't bother calculating the os. + Instead use the gdbarch_info struct and look at the osabi field. + Also use gdbarch_list_lookup_by_info() to look for a + candidate gdbarch. + 2003-11-05 Kevin Buettner * frv-tdep.c (frv_register_byte): Delete. diff --git a/gdb/ia64-tdep.c b/gdb/ia64-tdep.c index 7f973b98bb..7f1c39ee1b 100644 --- a/gdb/ia64-tdep.c +++ b/gdb/ia64-tdep.c @@ -256,9 +256,6 @@ struct ia64_frame_cache struct gdbarch_tdep { - int os_ident; /* From the ELF header, one of the ELFOSABI_ - constants: ELFOSABI_LINUX, ELFOSABI_AIX, - etc. */ CORE_ADDR (*sigcontext_register_address) (CORE_ADDR, int); /* OS specific function which, given a frame address and register number, returns the offset to the @@ -2710,47 +2707,21 @@ ia64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) { struct gdbarch *gdbarch; struct gdbarch_tdep *tdep; - int os_ident; - if (info.abfd != NULL - && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour) - { - os_ident = elf_elfheader (info.abfd)->e_ident[EI_OSABI]; - - /* If os_ident is 0, it is not necessarily the case that we're - on a SYSV system. (ELFOSABI_NONE is defined to be 0.) - GNU/Linux uses a note section to record OS/ABI info, but - leaves e_ident[EI_OSABI] zero. So we have to check for note - sections too. */ - if (os_ident == 0) - { - bfd_map_over_sections (info.abfd, - process_note_abi_tag_sections, - &os_ident); - } - } - else - os_ident = -1; - - for (arches = gdbarch_list_lookup_by_info (arches, &info); - arches != NULL; - arches = gdbarch_list_lookup_by_info (arches->next, &info)) - { - tdep = gdbarch_tdep (arches->gdbarch); - if (tdep &&tdep->os_ident == os_ident) - return arches->gdbarch; - } + /* If there is already a candidate, use it. */ + arches = gdbarch_list_lookup_by_info (arches, &info); + if (arches != NULL) + return arches->gdbarch; tdep = xmalloc (sizeof (struct gdbarch_tdep)); gdbarch = gdbarch_alloc (&info, tdep); - tdep->os_ident = os_ident; /* Set the method of obtaining the sigcontext addresses at which registers are saved. The method of checking to see if native_find_global_pointer is nonzero to indicate that we're on AIX is kind of hokey, but I can't think of a better way to do it. */ - if (os_ident == ELFOSABI_LINUX) + if (info.osabi == GDB_OSABI_LINUX) tdep->sigcontext_register_address = ia64_linux_sigcontext_register_address; else if (native_find_global_pointer != 0) tdep->sigcontext_register_address = ia64_aix_sigcontext_register_address; @@ -2764,7 +2735,7 @@ ia64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) generic_elf_find_global_pointer. This arrangement should (in theory) allow us to cross debug GNU/Linux binaries from an AIX machine. */ - if (os_ident == ELFOSABI_LINUX) + if (info.osabi == GDB_OSABI_LINUX) tdep->find_global_pointer = generic_elf_find_global_pointer; else if (native_find_global_pointer != 0) tdep->find_global_pointer = native_find_global_pointer; -- 2.34.1