src-test/contrib/gdb, branch main

[PPC64] Fix GDB sigtramp detection

2019-11-01T11:28:43Z

Current implementation of ppcfbsd_pc_in_sigtramp() seems to take only 32-bit PowerPC in account, as on 64-bit PowerPC most kernel instruction addresses will be wrongly reported as in sigtramp. This change adds proper sigtramp detection for PPC64. Reviewed by: jhibbits Differential Revision: https://reviews.freebsd.org/D22199

Remove usesless readline compat includes which will reinclude readline.h

2019-09-12T08:54:48Z

itself. This simplifies the upcoming update to newer libedit.

Commit forgotten change in gdb allowing to use libedit

2018-02-06T12:17:03Z

Fix KGDB backtrace on ARM

2016-04-20T17:58:13Z

Modify trapframe decoding to properly analyze trapframe. Provide method for fixup_pc. It happens, that in some kernel functions, the GDB stack frame decoder cannot determine both func name and frame size. This is because these functions either contain invalid instruction, or their format does not match standard schema. Detect that scenarios and move PC accordingly to jump into known function schema, which GDB is able to parse. Obtained from: Semihalf Sponsored by: Juniper Networks Reviewed by: kib, zbb Differential Revision: https://reviews.freebsd.org/D5976

Workaround KGDB issues on ARM by ignoring ARM EABI version higher than 5

2015-10-30T12:21:37Z

To make KGDB working, it needs to understand kernel ELF image. By default it is compiled using EABI_5, which is not supported on the gdb-6. As a workaround, treat these images as EABI_2 because they share a lot of things in common. This workaround does not guarantee ALL funtionalities to work. Submitted by: Wojciech Macek Reviewed by: jhb Obtained from: Semihalf Sponsored by: Juniper Networks Inc. Differential Revision: https://reviews.freebsd.org/D4012

Update intree gdb/kgdb to handle 2 dwarf types:

2015-05-17T15:49:38Z

DW_OP_GNU_uninit DW_OP_piece This squashes the warnings about type 0x93 not known in kgdb when opening a kernel crash dump. Upstream refs: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=87808bd699575a850139a1f916512ab7a47fd496 https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=42be36b328ae784ae6981da7c7cab95b67ed7737 https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=23572ecadc89af384c1804ad7692f32c55fbfc80 Differential Revision: https://reviews.freebsd.org/D2534 Reviewed by: emaste, jhb, davide

MFV r277658:

2015-01-24T21:05:18Z

GDB: Replace use of sprintf. 2005-03-17 Mark Kettenis * corelow.c (get_core_register_section): Replace usage of sprintf and strcpy with xstrprintf and xstrdup. Sourceware commit: 3ecda4574edb38ad12fb491ccaf6d9b0caa3a07a CID: 1006819 MFC after: 4 days

MFV: r277654

2015-01-24T20:25:21Z

gdb: Add missing break statements 2004-05-21 Jim Blandy * dwarf2expr.c (execute_stack_op): Add 'break' statements after cases for DW_OP_div and DW_OP_shr. (Thanks to Reva Cuthbertson.) Sourceware commit 99c87dab95747d380392a3698740507a21ad3236 CID: 1008254 MFC after: 4 days

MFV r277607:

2015-01-23T20:40:31Z

GDB: Fix memset thinkos. 2005-03-25 Anthony Green * remote.c (remote_store_registers): Fix memset usage. * std-regs.c (value_of_builtin_frame_reg): Ditto. (value_of_builtin_frame_fp_reg): Ditto. (value_of_builtin_frame_reg): Ditto. Reported by: Dirk Engling CID: 604160, 604161, 604162, 604163 MFC after: 5 days

recognize the FreeBSD ARCH tag that is put on binaries like on armeb

2014-02-12T02:03:37Z

EABI binaries... MFC after: 1 week