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* arm-tdep.c (arm_gdbarch_init): Get default floating-point model

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from ELF flags for binaries produced by the GNU toolchain.
This commit is contained in:
Mark Kettenis 2006-07-19 18:21:36 +00:00
parent c1cb7e0238
commit 6b26d61a05
2 changed files with 36 additions and 8 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2006-07-19 Mark Kettenis <kettenis@gnu.org>
* arm-tdep.c (arm_gdbarch_init): Get default floating-point model
from ELF flags for binaries produced by the GNU toolchain.
2006-07-18 Nathan Sidwell <nathan@codesourcery.com> 2006-07-18 Nathan Sidwell <nathan@codesourcery.com>
* remote-fileio.c (remote_fileio_func_rename): Reorder to process * remote-fileio.c (remote_fileio_func_rename): Reorder to process

39
gdb/arm-tdep.c
View File

@ -2594,7 +2594,7 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
if (arm_abi == ARM_ABI_AUTO && info.abfd != NULL) if (arm_abi == ARM_ABI_AUTO && info.abfd != NULL)
{ {
int ei_osabi; int ei_osabi, e_flags;
switch (bfd_get_flavour (info.abfd)) switch (bfd_get_flavour (info.abfd))
{ {
@ -2611,19 +2611,18 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
case bfd_target_elf_flavour: case bfd_target_elf_flavour:
ei_osabi = elf_elfheader (info.abfd)->e_ident[EI_OSABI]; ei_osabi = elf_elfheader (info.abfd)->e_ident[EI_OSABI];
e_flags = elf_elfheader (info.abfd)->e_flags;
if (ei_osabi == ELFOSABI_ARM) if (ei_osabi == ELFOSABI_ARM)
{ {
/* GNU tools used to use this value, but do not for EABI /* GNU tools used to use this value, but do not for EABI
objects. There's nowhere to tag an EABI version anyway, objects. There's nowhere to tag an EABI version
so assume APCS. */ anyway, so assume APCS. */
arm_abi = ARM_ABI_APCS; arm_abi = ARM_ABI_APCS;
} }
else if (ei_osabi == ELFOSABI_NONE) else if (ei_osabi == ELFOSABI_NONE)
{ {
int e_flags, eabi_ver; int eabi_ver = EF_ARM_EABI_VERSION (e_flags);
e_flags = elf_elfheader (info.abfd)->e_flags;
eabi_ver = EF_ARM_EABI_VERSION (e_flags);
switch (eabi_ver) switch (eabi_ver)
{ {
@ -2640,8 +2639,32 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
break; break;
default: default:
/* Leave it as "auto". */
warning (_("unknown ARM EABI version 0x%x"), eabi_ver); warning (_("unknown ARM EABI version 0x%x"), eabi_ver);
arm_abi = ARM_ABI_APCS; break;
}
}
if (fp_model == ARM_FLOAT_AUTO)
{
int e_flags = elf_elfheader (info.abfd)->e_flags;
switch (e_flags & (EF_ARM_SOFT_FLOAT | EF_ARM_VFP_FLOAT))
{
case 0:
/* Leave it as "auto". Strictly speaking this case
means FPA, but almost nobody uses that now, and
many toolchains fail to set the appropriate bits
for the floating-point model they use. */
break;
case EF_ARM_SOFT_FLOAT:
fp_model = ARM_FLOAT_SOFT_FPA;
break;
case EF_ARM_VFP_FLOAT:
fp_model = ARM_FLOAT_VFP;
break;
case EF_ARM_SOFT_FLOAT | EF_ARM_VFP_FLOAT:
fp_model = ARM_FLOAT_SOFT_VFP;
break; break;
} }
} }