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Move entirety of llvm namespace to wpi namespace.

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During shared library loading, a different libLLVM can be pulled in, causing
llvm symbols from dependent libraries to resolve to that library instead of
this one. This has been seen in the wild with the Mesa OpenGL implementation
in JavaFX applications (see wpilibsuite/shuffleboard#361).

This is clearly a very breaking change. For some level of backwards
compatibility, a namespace alias from llvm to wpi is performed in the "llvm"
headers.  Unfortunately, forward declarations of llvm classes will still break,
but compilers seem to generate clear error messages in those cases
("namespace alias 'llvm' not allowed here, assuming 'wpi'").

This change also moves all the wpiutil headers to a single "wpi" subdirectory
from the previously split "llvm", "support", "tcpsockets", and "udpsockets".
Shim headers will be added for backwards compatibility in a later commit.
This commit is contained in:
Peter Johnson
2018-04-29 23:33:19 -07:00
parent 93859eb84f
commit f84018af5f
377 changed files with 2747 additions and 2742 deletions
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12
hal/src/main/native/athena/SPI.cpp
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@@ -16,8 +16,8 @@
#include <atomic>
#include <cstring>
#include <llvm/raw_ostream.h>
#include <support/mutex.h>
#include <wpi/raw_ostream.h>
#include <wpi/mutex.h>
#include "DigitalInternal.h"
#include "HAL/DIO.h"
@@ -196,20 +196,20 @@ void HAL_InitializeSPI(HAL_SPIPort port, int32_t* status) {
if ((digitalHandles[5] = HAL_InitializeDIOPort(createPortHandleForSPI(14),
false, status)) ==
HAL_kInvalidHandle) {
llvm::outs() << "Failed to allocate DIO 14\n";
wpi::outs() << "Failed to allocate DIO 14\n";
return;
}
if ((digitalHandles[6] = HAL_InitializeDIOPort(createPortHandleForSPI(15),
false, status)) ==
HAL_kInvalidHandle) {
llvm::outs() << "Failed to allocate DIO 15\n";
wpi::outs() << "Failed to allocate DIO 15\n";
HAL_FreeDIOPort(digitalHandles[5]); // free the first port allocated
return;
}
if ((digitalHandles[7] = HAL_InitializeDIOPort(createPortHandleForSPI(16),
false, status)) ==
HAL_kInvalidHandle) {
llvm::outs() << "Failed to allocate DIO 16\n";
wpi::outs() << "Failed to allocate DIO 16\n";
HAL_FreeDIOPort(digitalHandles[5]); // free the first port allocated
HAL_FreeDIOPort(digitalHandles[6]); // free the second port allocated
return;
@@ -217,7 +217,7 @@ void HAL_InitializeSPI(HAL_SPIPort port, int32_t* status) {
if ((digitalHandles[8] = HAL_InitializeDIOPort(createPortHandleForSPI(17),
false, status)) ==
HAL_kInvalidHandle) {
llvm::outs() << "Failed to allocate DIO 17\n";
wpi::outs() << "Failed to allocate DIO 17\n";
HAL_FreeDIOPort(digitalHandles[5]); // free the first port allocated
HAL_FreeDIOPort(digitalHandles[6]); // free the second port allocated
HAL_FreeDIOPort(digitalHandles[7]); // free the third port allocated