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Arm: Allow version strings in the triplet regexp 

On Arm, the OS may use the full version string for the arch name when
installing the compiler, for example armv7hl-redhat-linux-gnueabi-gcc.

Implement gdbarch_gnu_triplet_regexp for Arm to allow this to be detected.
Ensure that other Arm targets (eg iwmmxt) are not affected.

This fixes the compile/ set of tests on those systems.

gdb/ChangeLog:

2019-06-26  Alan Hayward  <alan.hayward@arm.com>

	* arm-tdep.c (arm_gnu_triplet_regexp): New function.
	(arm_gdbarch_init): Add arm_gnu_triplet_regexp.
This commit is contained in:
Alan Hayward 2019-06-26 14:10:08 +01:00
parent 8af58ffe5d
commit 3426ae5760
2 changed files with 18 additions and 1 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2019-06-26 Alan Hayward <alan.hayward@arm.com>
* arm-tdep.c (arm_gnu_triplet_regexp): New function.
(arm_gdbarch_init): Add arm_gnu_triplet_regexp.
2019-06-25 Simon Marchi <simon.marchi@polymtl.ca>
* arm-tdep.c (struct arm_per_objfile) <section_maps_sorted>: New

14
gdb/arm-tdep.c
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@ -8831,7 +8831,17 @@ arm_code_of_frame_writable (struct gdbarch *gdbarch, struct frame_info *frame)
return 1;
}
/* Implement gdbarch_gnu_triplet_regexp. If the arch name is arm then allow it
to be postfixed by a version (eg armv7hl). */
static const char *
arm_gnu_triplet_regexp (struct gdbarch *gdbarch)
{
if (strcmp (gdbarch_bfd_arch_info (gdbarch)->arch_name, "arm") == 0)
return "arm(v[^- ]*)?";
return gdbarch_bfd_arch_info (gdbarch)->arch_name;
}
/* Initialize the current architecture based on INFO. If possible,
re-use an architecture from ARCHES, which is a list of
architectures already created during this debugging session.
@ -9433,6 +9443,8 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_disassembler_options (gdbarch, &arm_disassembler_options);
set_gdbarch_valid_disassembler_options (gdbarch, disassembler_options_arm ());
set_gdbarch_gnu_triplet_regexp (gdbarch, arm_gnu_triplet_regexp);
return gdbarch;
}