Mercurial > hg > orthanc

annotate OrthancFramework/Resources/WebAssembly.txt @ 4966:ee6d7937a6cf

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
pass user-specific compiler flags to the ConnectivityChecks subproject
author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 26 Mar 2022 09:23:49 +0100
parents e62bd014ae5c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4063
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
1
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
2 ======================================
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
3 == Notes about WebAssembly ===========
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
4 ======================================
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
5
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
6
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
7
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
8 Trap mode
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
9 =========
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
10
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
11 The BINARYEN_TRAP_MODE specifies what to do when divisions per zero
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
12 (and similar conditions like integer overflows) are encountered. This
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
13 can be set through the option "EMSCRIPTEN_TRAP_MODE" in Orthanc.
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
14
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
15
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
16
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
17 Previous versions (<= 1.7.1)
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
18 ----------------------------
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
19
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
20 The "clamp" mode avoids throwing errors, as they cannot be properly
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
21 catched by "try {} catch (...)" constructions. HOWEVER, the "upstream"
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
22 backend of Emscripten (which is now the default) doesn't support this
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
23 option.
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
24
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
25 In Orthanc <= 1.7.1, the "clamp" mode was used by default. As a
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
26 consequence, there was an old flag "EMSCRIPTEN_SET_LLVM_WASM_BACKEND"
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
27 to setting BINARYEN_TRAP_MODE.
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
28
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
29 Here is the definition of the parameter that was in
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
30 "OrthancFrameworkParameters.cmake":
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
31
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
32 >>>>>
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
33 set(EMSCRIPTEN_SET_LLVM_WASM_BACKEND OFF CACHE BOOL "Sets the compiler flags required to use the LLVM Web Assembly backend in emscripten")
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
34 <<<<<
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
35
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
36 Setting this option to "ON" fixes error: "shared:ERROR:
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
37 BINARYEN_TRAP_MODE is not supported by the LLVM wasm backend" if using
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
38 the "upstream" backend of Emscripten. Here is the corresponding
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
39 implementation that was in "Compiler.cmake":
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
40
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
41 >>>>>
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
42 if (NOT EMSCRIPTEN_SET_LLVM_WASM_BACKEND)
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
43 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s BINARYEN_TRAP_MODE='\"clamp\"'")
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
44 endif()
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
45 <<<<<
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
46
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
47
4315
e62bd014ae5c removed EMSCRIPTEN_SET_LLVM_WASM_BACKEND option for CMake
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4063
diff changeset
48 The "EMSCRIPTEN_SET_LLVM_WASM_BACKEND" option was totally removed in
e62bd014ae5c removed EMSCRIPTEN_SET_LLVM_WASM_BACKEND option for CMake
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4063
diff changeset
49 Orthanc 1.8.1.
e62bd014ae5c removed EMSCRIPTEN_SET_LLVM_WASM_BACKEND option for CMake
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4063
diff changeset
50
e62bd014ae5c removed EMSCRIPTEN_SET_LLVM_WASM_BACKEND option for CMake
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4063
diff changeset
51
4063
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
52
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
53
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
54 Linker flags
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
55 ============
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
56
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
57 Since Orthanc 1.7.2, "Compiler.cmake" doesn't set any linking option
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
58 for Emscripten. In Orthanc <= 1.7.1, the following was done:
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
59
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
60 >>>>>
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
61 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s EXTRA_EXPORTED_RUNTIME_METHODS='[\"ccall\", \"cwrap\"]'")
e00f3d089991 shared library of orthanc framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
62 <<<<<