Re: [PATCH 1/2] gdb: introduce command "info architecture"

["Maciej W. Rozycki" <macro@orcam.me.uk>]

On Thu, 6 Nov 2025, Guinevere Larsen wrote:

> There is no convenient way to tell a user how to check which
> architectures are supported by their build of GDB.  This hasn't really
> been a problem, but now that GDB isn't ported to Apple's new CPU
> architectures, a user could run into a situation where they're trying to
> debug an unsupported CPU.

 Umm, doesn't `set architecture' do the right job?

(gdb) set architecture
Requires an argument. Valid arguments are ARC600, A6, ARC601, ARC700, A7, ARCv2, EM, HS, arm, armv2, armv2a, armv3, armv3m, armv4, armv4t, armv5, armv5t, armv5te, xscale, iwmmxt, iwmmxt2, armv5tej, armv6, armv6kz, armv6t2, armv6k, armv7, armv6-m, armv6s-m, armv7e-m, armv8-a, armv8-r, armv8-m.base, armv8-m.main, armv8.1-m.main, armv9-a, arm_any, avr, avr:1, avr:2, avr:25, avr:3, avr:31, avr:35, avr:4, avr:5, avr:51, avr:6, avr:100, avr:101, avr:102, avr:103, avr:104, avr:105, avr:106, avr:107, bfin, cris, crisv32, cris:common_v10_v32, csky, csky:ck510, csky:ck610, csky:ck801, csky:ck802, csky:ck803, csky:ck807, csky:ck810, csky:ck860, csky:any, frv, tomcat, simple, fr550, fr500, fr450, fr400, fr300, ft32, ft32b, h8300, h8300h, h8300s, h8300hn, h8300sn, h8300sx, h8300sxn, hppa1.0, i386, i386:x86-64, i386:x64-32, i8086, i386:intel, i386:x86-64:intel, i386:x64-32:intel, iq2000, iq10, lm32, m16c, m32c, m32r, m32rx, m32r2, m68hc11, m68hc12, m68hc12:HCS12, m68k, m68k:68000, m68k:68008, m68k
 :68010, m68k:68020, m68k:68030, m68k:68040, m68k:68060, m68k:cpu32, m68k:fido, m68k:isa-a:nodiv, m68k:isa-a, m68k:isa-a:mac, m68k:isa-a:emac, m68k:isa-aplus, m68k:isa-aplus:mac, m68k:isa-aplus:emac, m68k:isa-b:nousp, m68k:isa-b:nousp:mac, m68k:isa-b:nousp:emac, m68k:isa-b, m68k:isa-b:mac, m68k:isa-b:emac, m68k:isa-b:float, m68k:isa-b:float:mac, m68k:isa-b:float:emac, m68k:isa-c, m68k:isa-c:mac, m68k:isa-c:emac, m68k:isa-c:nodiv, m68k:isa-c:nodiv:mac, m68k:isa-c:nodiv:emac, m68k:5200, m68k:5206e, m68k:5307, m68k:5407, m68k:528x, m68k:521x, m68k:5249, m68k:547x, m68k:548x, m68k:cfv4e, mep, h1, c5, MicroBlaze, mn10300, am33, am33-2, moxie, msp:14, MSP430, MSP430x11x1, MSP430x12, MSP430x13, MSP430x14, MSP430x15, MSP430x16, MSP430x20, MSP430x21, MSP430x22, MSP430x23, MSP430x24, MSP430x26, MSP430x31, MSP430x32, MSP430x33, MSP430x41, MSP430x42, MSP430x43, MSP430x44, MSP430x46, MSP430x47, MSP430x54, MSP430X, n1, n1h, n1h_v2, n1h_v3, n1h_v3m, or1k, or1knd, rl78, rs6000:6000, rs6000:rs1, rs60
 00:rsc, rs6000:rs2, powerpc:common, powerpc:common64, powerpc:603, powerpc:EC603e, powerpc:604, powerpc:403, powerpc:601, powerpc:620, powerpc:630, powerpc:a35, powerpc:rs64ii, powerpc:rs64iii, powerpc:7400, powerpc:e500, powerpc:e500mc, powerpc:e500mc64, powerpc:MPC8XX, powerpc:750, powerpc:titan, powerpc:vle, powerpc:e5500, powerpc:e6500, rx, rx:v2, rx:v3, s12z, s390:31-bit, s390:64-bit, sh, sh2, sh2e, sh-dsp, sh3, sh3-nommu, sh3-dsp, sh3e, sh4, sh4a, sh4al-dsp, sh4-nofpu, sh4-nommu-nofpu, sh4a-nofpu, sh2a, sh2a-nofpu, sh2a-nofpu-or-sh4-nommu-nofpu, sh2a-nofpu-or-sh3-nommu, sh2a-or-sh4, sh2a-or-sh3e, sparc, sparc:sparclet, sparc:sparclite, sparc:v8plus, sparc:v8plusa, sparc:sparclite_le, sparc:v9, sparc:v9a, sparc:v8plusb, sparc:v9b, sparc:v8plusc, sparc:v9c, sparc:v8plusd, sparc:v9d, sparc:v8pluse, sparc:v9e, sparc:v8plusv, sparc:v9v, sparc:v8plusm, sparc:v9m, sparc:v8plusm8, sparc:v9m8, tic6x, v850:old-gcc-abi, v850e3v5:old-gcc-abi, v850e2v4:old-gcc-abi, v850e2v3:old-gcc-abi, v8
 50e2:old-gcc-abi, v850e1:old-gcc-abi, v850e:old-gcc-abi, v850:rh850, v850e3v5, v850e2v4, v850e2v3, v850e2, v850e1, v850e, v850-rh850, vax, xstormy16, xtensa, z80, z80-strict, z80-full, r800, gbz80, z180, z80n, ez80-z80, ez80-adl, aarch64, aarch64:llp64, aarch64:ilp32, aarch64:armv8-r, alpha, alpha:ev4, alpha:ev5, alpha:ev6, bpf, xbpf, ia64-elf64, ia64-elf32, Loongarch64, Loongarch32, mips, mips:3000, mips:3900, mips:4000, mips:4010, mips:4100, mips:4111, mips:4120, mips:4300, mips:4400, mips:4600, mips:4650, mips:5000, mips:5400, mips:5500, mips:5900, mips:6000, mips:7000, mips:8000, mips:9000, mips:10000, mips:12000, mips:14000, mips:16000, mips:16, mips:mips5, mips:isa32, mips:isa32r2, mips:isa32r3, mips:isa32r5, mips:isa32r6, mips:isa64, mips:isa64r2, mips:isa64r3, mips:isa64r5, mips:isa64r6, mips:sb1, mips:loongson_2e, mips:loongson_2f, mips:gs464, mips:gs464e, mips:gs264e, mips:octeon, mips:octeon+, mips:octeon2, mips:octeon3, mips:xlr, mips:interaptiv-mr2, mips:allegrex, mips:
 micromips, riscv, riscv:rv64, riscv:rv32, tilegx, tilegx32, auto.
(gdb) 

Or am I missing something?  Of course adding filtering might be useful, 
especially if the list so large as in my quoted example, but the change 
description suggests there's no listing facility available.

  Maciej