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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>
* 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)
{
int ei_osabi;
int ei_osabi, e_flags;
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:
ei_osabi = elf_elfheader (info.abfd)->e_ident[EI_OSABI];
e_flags = elf_elfheader (info.abfd)->e_flags;
if (ei_osabi == ELFOSABI_ARM)
{
/* GNU tools used to use this value, but do not for EABI
objects. There's nowhere to tag an EABI version anyway,
so assume APCS. */
objects. There's nowhere to tag an EABI version
anyway, so assume APCS. */
arm_abi = ARM_ABI_APCS;
}
else if (ei_osabi == ELFOSABI_NONE)
{
int e_flags, eabi_ver;
e_flags = elf_elfheader (info.abfd)->e_flags;
eabi_ver = EF_ARM_EABI_VERSION (e_flags);
int eabi_ver = EF_ARM_EABI_VERSION (e_flags);
switch (eabi_ver)
{
@ -2640,8 +2639,32 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
break;
default:
/* Leave it as "auto". */
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;
}
}