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linux: Improve debugging for PTRACE_GETREGSET

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It's triggered by gdb(1).

Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D32456
This commit is contained in:
Edward Tomasz Napierala 2021-10-17 12:52:39 +01:00
parent f9246e1484
commit a03d4d73e4
1 changed files with 7 additions and 2 deletions
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9
sys/amd64/linux/linux_ptrace.c
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@ -84,7 +84,8 @@ __FBSDID("$FreeBSD$");
#define LINUX_PTRACE_O_EXITKILL 1048576
#define LINUX_PTRACE_O_SUSPEND_SECCOMP 2097152
#define LINUX_NT_PRSTATUS 1
#define LINUX_NT_PRSTATUS 0x1
#define LINUX_NT_X86_XSTATE 0x202
#define LINUX_PTRACE_O_MASK (LINUX_PTRACE_O_TRACESYSGOOD | \
LINUX_PTRACE_O_TRACEFORK | LINUX_PTRACE_O_TRACEVFORK | \
@ -540,8 +541,12 @@ linux_ptrace_getregset(struct thread *td, pid_t pid, l_ulong addr, l_ulong data)
switch (addr) {
case LINUX_NT_PRSTATUS:
return (linux_ptrace_getregset_prstatus(td, pid, data));
case LINUX_NT_X86_XSTATE:
linux_msg(td, "PTRAGE_GETREGSET NT_X86_XSTATE not implemented; "
"returning EINVAL");
return (EINVAL);
default:
linux_msg(td, "PTRACE_GETREGSET request %ld not implemented; "
linux_msg(td, "PTRACE_GETREGSET request %#lx not implemented; "
"returning EINVAL", addr);
return (EINVAL);
}