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* arm-tdep.c (arm_gdbarch_init): Allow unknown ABI and FPU settings

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to match any gdbarch with matching OSABI.  Set default ABI and FPU
	after running the OSABI handler.
This commit is contained in:
Daniel Jacobowitz 2007-08-14 15:47:00 +00:00
parent cdd6623c94
commit b8926edcac
2 changed files with 22 additions and 27 deletions
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6
gdb/ChangeLog
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@ -1,3 +1,9 @@
2007-08-14 Daniel Jacobowitz <dan@codesourcery.com>
* arm-tdep.c (arm_gdbarch_init): Allow unknown ABI and FPU settings
to match any gdbarch with matching OSABI. Set default ABI and FPU
after running the OSABI handler.
2007-08-14 Daniel Jacobowitz <dan@codesourcery.com>
* config/i386/linux.mh (NATDEPFILES): Move corelow.o from here...

43
gdb/arm-tdep.c
View File

@ -2835,39 +2835,17 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
}
}
/* Now that we have inferred any architecture settings that we
can, try to inherit from the last ARM ABI. */
if (arches != NULL)
{
if (arm_abi == ARM_ABI_AUTO)
arm_abi = gdbarch_tdep (arches->gdbarch)->arm_abi;
if (fp_model == ARM_FLOAT_AUTO)
fp_model = gdbarch_tdep (arches->gdbarch)->fp_model;
}
else
{
/* There was no prior ARM architecture; fill in default values. */
if (arm_abi == ARM_ABI_AUTO)
arm_abi = ARM_ABI_APCS;
/* We used to default to FPA for generic ARM, but almost nobody
uses that now, and we now provide a way for the user to force
the model. So default to the most useful variant. */
if (fp_model == ARM_FLOAT_AUTO)
fp_model = ARM_FLOAT_SOFT_FPA;
}
/* If there is already a candidate, use it. */
for (best_arch = gdbarch_list_lookup_by_info (arches, &info);
best_arch != NULL;
best_arch = gdbarch_list_lookup_by_info (best_arch->next, &info))
{
if (arm_abi != gdbarch_tdep (best_arch->gdbarch)->arm_abi)
if (arm_abi != ARM_ABI_AUTO
&& arm_abi != gdbarch_tdep (best_arch->gdbarch)->arm_abi)
continue;
if (fp_model != gdbarch_tdep (best_arch->gdbarch)->fp_model)
if (fp_model != ARM_FLOAT_AUTO
&& fp_model != gdbarch_tdep (best_arch->gdbarch)->fp_model)
continue;
/* Found a match. */
@ -2997,12 +2975,23 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Now we have tuned the configuration, set a few final things,
based on what the OS ABI has told us. */
/* If the ABI is not otherwise marked, assume the old GNU APCS. EABI
binaries are always marked. */
if (tdep->arm_abi == ARM_ABI_AUTO)
tdep->arm_abi = ARM_ABI_APCS;
/* We used to default to FPA for generic ARM, but almost nobody
uses that now, and we now provide a way for the user to force
the model. So default to the most useful variant. */
if (tdep->fp_model == ARM_FLOAT_AUTO)
tdep->fp_model = ARM_FLOAT_SOFT_FPA;
if (tdep->jb_pc >= 0)
set_gdbarch_get_longjmp_target (gdbarch, arm_get_longjmp_target);
/* Floating point sizes and format. */
set_gdbarch_float_format (gdbarch, floatformats_ieee_single);
if (fp_model == ARM_FLOAT_SOFT_FPA || fp_model == ARM_FLOAT_FPA)
if (tdep->fp_model == ARM_FLOAT_SOFT_FPA || tdep->fp_model == ARM_FLOAT_FPA)
{
set_gdbarch_double_format
(gdbarch, floatformats_ieee_double_littlebyte_bigword);