arm32: incomplete type ‘Elf::CoreRegisters {aka Elf::user_regs_struct}’

[wasphin]

Failed to cross-compile for arm32, which seems to have no definition for user_regs_struct, is there any workaround for this?

error: invalid application of ‘sizeof’ to incomplete type ‘Elf::CoreRegisters {aka Elf::user_regs_struct}’
                memcpy(reg, &prstatus.pr_reg, sizeof(*reg));

[peadar]

Hi, Thanks for the report.
I submitted a782770 to fix the build issue, but there are other problems causing the stack unwinding to fail - that'll take longer to fix. I need to work out how 32-bit arm differs from other platforms in how it uses the eh_frame section.

[peadar]

Ah - I remember now. Realistically, the stack unwinding in pstack won't work for arm32, because it uses a different, arm32-specific section to encode the rules for unwinding the stack. I at least have a device I can test with now (i.e., I found my raspberry pi in a box of junk), so I can try and make sense of the .ARM.extab and .ARM.exidx tables in the next few weeks.

[cornermoss]

warning: exception unwinding stack: no FDE/CIE/CFI for instruction address

pstack 2.4.7 still does not support ARM-32 (eg, Novatek NT98632 arm-ca53-linux-gnueabihf-8.4) .
process.cc ThreadStack::unwind not support arm ?