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Arm: Add read_description read funcs and use in GDB

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Switch the Arm target to get target descriptions via arm_read_description
and aarch32_read_description, in the same style as other feature targets.
Add an enum to specify the different types - this will also be of use to
gdbserver in a later patch.

Under the hood return the same existing pre-feature target descriptions.

gdb/ChangeLog:

	* Makefile.in: Add new files.
	* aarch32-tdep.c: New file.
	* aarch32-tdep.h: New file.
	* aarch64-linux-nat.c (aarch64_linux_nat_target::read_description):
	Call aarch32_read_description.
	* arch/aarch32.c: New file.
	* arch/aarch32.h: New file.
	* arch/arm.c (arm_create_target_description)
	(arm_create_mprofile_target_description): New function.
	* arch/arm.h (arm_fp_type, arm_m_profile_type): New enum.
	(arm_create_target_description)
	(arm_create_mprofile_target_description): New declaration.
	* arm-fbsd-tdep.c (arm_fbsd_read_description_auxv): Call
	read_description functions.
	* arm-linux-nat.c (arm_linux_nat_target::read_description):
	Likewise.
	* arm-linux-tdep.c (arm_linux_core_read_description): Likewise.
	* arm-tdep.c (tdesc_arm_list): New variable.
	(arm_register_g_packet_guesses): Call create description functions.
	(arm_read_description) (arm_read_mprofile_description): New
	function.
	* arm-tdep.h (arm_read_description)
	(arm_read_mprofile_description): Add declaration.
	* configure.tgt: Add new files.
This commit is contained in:
Alan Hayward
2019-07-19 14:59:10 +01:00
parent 231097b03a
commit d105cce5dd
15 changed files with 309 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
gdb/arm-linux-tdep.c
View File

@@ -33,6 +33,7 @@
#include "auxv.h"
#include "xml-syscall.h"
#include "aarch32-tdep.h"
#include "arch/arm.h"
#include "arch/arm-get-next-pcs.h"
#include "arch/arm-linux.h"
@@ -738,14 +739,14 @@ arm_linux_core_read_description (struct gdbarch *gdbarch,
/* NEON implies VFPv3-D32 or no-VFP unit. Say that we only support
Neon with VFPv3-D32. */
if (arm_hwcap & HWCAP_NEON)
return tdesc_arm_with_neon;
return aarch32_read_description ();
else if ((arm_hwcap & (HWCAP_VFPv3 | HWCAP_VFPv3D16)) == HWCAP_VFPv3)
return tdesc_arm_with_vfpv3;
else
return tdesc_arm_with_vfpv2;
return arm_read_description (ARM_FP_TYPE_VFPV3);
return arm_read_description (ARM_FP_TYPE_VFPV2);
}
return NULL;
return nullptr;
}