forked from Imagelibrary/seL4
b5cc70d753
At the moment, the seL4 microkit does not setup TLS variable support. The workaround has been to `#define __thread` (blank) before including `<sel4/sel4.h>` in `<microkit.h>`, which causes issues if `<microkit.h>` is included *after* `<sel4/sel4.h>`, often with obscure linker errors to `__emutls_**` symbols. Instead we add a libsel4 config option that allows us to build it with __thread copied out. We introduce an LIBSEL4_THREAD_LOCAL macro in a similar way to the existing LIBSEL4_INLINE macro. Signed-off-by: Julia Vassiliki <julia.vassiliki@unsw.edu.au>
106 lines
2.5 KiB
C
106 lines
2.5 KiB
C
/*
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* Copyright 2020, Data61, CSIRO (ABN 41 687 119 230)
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* Copyright 2015, 2016 Hesham Almatary <heshamelmatary@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <sel4/types.h>
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#include <sel4/syscalls.h>
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extern LIBSEL4_THREAD_LOCAL seL4_IPCBuffer *__sel4_ipc_buffer;
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#ifdef CONFIG_KERNEL_INVOCATION_REPORT_ERROR_IPC
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extern LIBSEL4_THREAD_LOCAL char __sel4_print_error;
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LIBSEL4_INLINE_FUNC char *seL4_GetDebugError(void)
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{
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return (char *)(__sel4_ipc_buffer->msg + DEBUG_MESSAGE_START);
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}
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LIBSEL4_INLINE_FUNC void seL4_SetPrintError(char print_error)
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{
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__sel4_print_error = print_error;
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return;
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}
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LIBSEL4_INLINE_FUNC char seL4_CanPrintError(void)
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{
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return __sel4_print_error;
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}
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#endif
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LIBSEL4_INLINE_FUNC void seL4_SetIPCBuffer(seL4_IPCBuffer *ipc_buffer)
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{
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__sel4_ipc_buffer = ipc_buffer;
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return;
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}
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LIBSEL4_INLINE_FUNC seL4_IPCBuffer *seL4_GetIPCBuffer(void)
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{
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return __sel4_ipc_buffer;
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}
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LIBSEL4_INLINE_FUNC seL4_Word seL4_GetMR(int i)
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{
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return seL4_GetIPCBuffer()->msg[i];
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}
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LIBSEL4_INLINE_FUNC void seL4_SetMR(int i, seL4_Word mr)
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{
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seL4_GetIPCBuffer()->msg[i] = mr;
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}
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LIBSEL4_INLINE_FUNC seL4_Word seL4_GetUserData(void)
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{
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return seL4_GetIPCBuffer()->userData;
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}
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LIBSEL4_INLINE_FUNC void seL4_SetUserData(seL4_Word data)
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{
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seL4_GetIPCBuffer()->userData = data;
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}
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LIBSEL4_INLINE_FUNC seL4_Word seL4_GetBadge(int i)
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{
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return seL4_GetIPCBuffer()->caps_or_badges[i];
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}
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LIBSEL4_INLINE_FUNC seL4_CPtr seL4_GetCap(int i)
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{
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return (seL4_CPtr)seL4_GetIPCBuffer()->caps_or_badges[i];
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}
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LIBSEL4_INLINE_FUNC void seL4_SetCap(int i, seL4_CPtr cptr)
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{
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seL4_GetIPCBuffer()->caps_or_badges[i] = (seL4_Word)cptr;
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}
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LIBSEL4_INLINE_FUNC void seL4_GetCapReceivePath(seL4_CPtr *receiveCNode, seL4_CPtr *receiveIndex,
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seL4_Word *receiveDepth)
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{
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seL4_IPCBuffer *ipcbuffer = seL4_GetIPCBuffer();
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if (receiveCNode != (void *)0) {
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*receiveCNode = ipcbuffer->receiveCNode;
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}
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if (receiveIndex != (void *)0) {
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*receiveIndex = ipcbuffer->receiveIndex;
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}
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if (receiveDepth != (void *)0) {
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*receiveDepth = ipcbuffer->receiveDepth;
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}
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}
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LIBSEL4_INLINE_FUNC void seL4_SetCapReceivePath(seL4_CPtr receiveCNode, seL4_CPtr receiveIndex, seL4_Word receiveDepth)
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{
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seL4_IPCBuffer *ipcbuffer = seL4_GetIPCBuffer();
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ipcbuffer->receiveCNode = receiveCNode;
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ipcbuffer->receiveIndex = receiveIndex;
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ipcbuffer->receiveDepth = receiveDepth;
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}
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