[Bug 267361] EINVAL accessing fpcsr for armv7 process on arm64 kernel
| Newsgroups | gmane.os.freebsd.devel.arm |
|---|---|
| Message-ID | <[email protected]/bugzilla/> |
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267361
Bug ID: 267361
Summary: EINVAL accessing fpcsr for armv7 process on arm64
kernel
Product: Base System
Version: 13.1-RELEASE
Hardware: arm64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: arm
Assignee: [email protected]
Reporter: [email protected]
To reproduce: install devel/gdb from ports. Then type
gdb /usr/bin/true
starti
info registers
Expected output:
(gdb) info registers
r0 0x0 0
r1 0x0 0
r2 0x0 0
r3 0x0 0
r4 0x0 0
r5 0x0 0
r6 0x0 0
r7 0x0 0
r8 0x0 0
r9 0x0 0
r10 0x0 0
r11 0x0 0
r12 0x0 0
sp 0xbfbfec9c 0xbfbfec9c
lr 0x20054380 537215872
pc 0x20054380 0x20054380 <rtld_start>
cpsr 0x10 16
fpscr 0x2000000 33554432
tpidruro <unavailable>
Actual output:
(gdb) info registers
r0 0xffffdb58 4294957912
r1 0x0 0
r2 0x0 0
r3 0x0 0
r4 0x0 0
r5 0x0 0
r6 0x0 0
r7 0x0 0
r8 0x0 0
r9 0x0 0
r10 0x0 0
r11 0x0 0
r12 0x0 0
sp 0xffffdb58 0xffffdb58
lr 0x40054380 1074086784
pc 0x40054380 0x40054380 <rtld_start>
cpsr 0x10 16
Couldn't get registers: Invalid argument.
The "expected output" is from an armv7 system. I have tested in an armv7
FreeBSD 13.1 jail on arm64 FreeBSD 13.1. The gdb version is 12.1 from ports.
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