diff options
Diffstat (limited to 'content/2023-01-14-xpost-matcha-threads')
6 files changed, 228 insertions, 8 deletions
diff --git a/content/2023-01-14-xpost-matcha-threads/gen-svg.sh b/content/2023-01-14-xpost-matcha-threads/gen-svg.sh index 365e243..8991440 100644 --- a/content/2023-01-14-xpost-matcha-threads/gen-svg.sh +++ b/content/2023-01-14-xpost-matcha-threads/gen-svg.sh @@ -1,3 +1,5 @@ #!/bin/bash drawio -x -f svg -t --svg-theme dark -o os-vs-user-threads.svg os-vs-user-threads.drawio +drawio -x -f svg -t --svg-theme dark -o yield.svg yield.drawio +drawio -x -f svg -t --svg-theme dark -o init-stack.svg init-stack.drawio diff --git a/content/2023-01-14-xpost-matcha-threads/index.md b/content/2023-01-14-xpost-matcha-threads/index.md index 3456b09..a916145 100644 --- a/content/2023-01-14-xpost-matcha-threads/index.md +++ b/content/2023-01-14-xpost-matcha-threads/index.md @@ -51,14 +51,11 @@ underlying cooperative-multitasking and implement such a `yield()` function as shown in the example above. Looking at the final implementation, the yield function does the following: -```txt -yield: - 1. function prologue - 2. push callee-saved regs to current stack - 3. swap stack pointers (current - new) - 4. pop callee-saved regs from new stack - 5. function epilogue & return -``` +1. push callee-saved regs to current stack +2. swap stack pointers (current - new) +3. pop callee-saved regs from new stack + +<img src="yield.svg"> Implementations for different ISAs are available here: - [x86_64][yield-x86] @@ -66,6 +63,24 @@ Implementations for different ISAs are available here: - [armv7a][yield-arm] - [riscv64][yield-rv64] +<div style="overflow: auto;"> +<img src="init-stack.svg" style="float: right; width: 20%; padding-left: 2ch;"> + +Since a thread returns into the last stack-frame of the new thread after +switching the stack pointers in the yield function, special care must be taken +when a new stack is created. + +The _initial stack_ is setup such that, when yield-ing into the new stack for +the first time, the stack contains the initial values for the callee-saved +registers, which yield will restore and the return frame contains an address +which should be returned to when returning from yield. + +An example of setting up the initial stack can be seen in [init_stack +(x86)][init-stack]. From this it can also be seen that the first time the +thread will return to [thread_create][thread-create], which just calls into a +function passed to [init_stack][init-stack]. +</div> + ## Appendix: os-level vs user-level threading The figure below depicts *os-level* threading (left) vs *user-level* threading @@ -89,3 +104,5 @@ to the scheduler, the stack-pointer is switched back to **stack S**. [yield-arm]: https://github.com/johannst/matcha-threads/blob/master/lib/arch/arm/yield.s [yield-arm64]: https://github.com/johannst/matcha-threads/blob/master/lib/arch/arm64/yield.s [yield-rv64]: https://github.com/johannst/matcha-threads/blob/master/lib/arch/riscv64/yield.s +[init-stack]: https://github.com/johannst/matcha-threads/blob/master/lib/arch/x86_64/init_stack.cc +[thread-create]: https://github.com/johannst/matcha-threads/blob/master/lib/arch/x86_64/thread_create.s diff --git a/content/2023-01-14-xpost-matcha-threads/init-stack.drawio b/content/2023-01-14-xpost-matcha-threads/init-stack.drawio new file mode 100644 index 0000000..eb0859f --- /dev/null +++ b/content/2023-01-14-xpost-matcha-threads/init-stack.drawio @@ -0,0 +1,25 @@ +<mxfile host="Electron" modified="2024-12-17T22:25:02.025Z" agent="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/23.1.5 Chrome/120.0.6099.109 Electron/28.1.0 Safari/537.36" etag="tKiDaYk_CW1yGI5HMTUf" version="23.1.5" type="device"> + <diagram name="Page-1" id="eupsqoG42ICuPfNcTmHv"> + <mxGraphModel dx="683" dy="410" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="850" pageHeight="1100" math="0" shadow="0"> + <root> + <mxCell id="0" /> + <mxCell id="1" parent="0" /> + <mxCell id="eODdzWfbsgeiVxMC9DDa-1" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;fillColor=none;" parent="1" vertex="1"> + <mxGeometry x="240" y="400" width="120" height="200" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-2" value="<font>initial<br>stack layout</font>" style="text;html=1;align=center;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontFamily=monospace;" parent="1" vertex="1"> + <mxGeometry x="240" y="360" width="120" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-4" value="initial values for callee-saved registers" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=none;" parent="1" vertex="1"> + <mxGeometry x="240" y="480" width="120" height="50" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-26" value="<font style="font-size: 11px;">return frame<br>(thread_create)<br></font>" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=default;fillColor=none;fontColor=#FFFFFF;" parent="1" vertex="1"> + <mxGeometry x="240" y="440" width="120" height="40" as="geometry" /> + </mxCell> + <mxCell id="o6MmRjZrtVa51bDexMuh-1" value="<span style="font-size: 11px;">thread_create args</span>" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=default;fillColor=none;fontColor=#FFFFFF;" vertex="1" parent="1"> + <mxGeometry x="240" y="400" width="120" height="40" as="geometry" /> + </mxCell> + </root> + </mxGraphModel> + </diagram> +</mxfile> diff --git a/content/2023-01-14-xpost-matcha-threads/init-stack.svg b/content/2023-01-14-xpost-matcha-threads/init-stack.svg new file mode 100644 index 0000000..2abc191 --- /dev/null +++ b/content/2023-01-14-xpost-matcha-threads/init-stack.svg @@ -0,0 +1,3 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> +<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="121px" height="241px" viewBox="-0.5 -0.5 121 241"><defs/><g><rect x="0" y="40" width="120" height="200" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="0" y="0" width="120" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 15px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>initial<br />stack layout</font></div></div></div></foreignObject><text x="60" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">initial...</text></switch></g><rect x="0" y="120" width="120" height="50" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 145px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">initial values for callee-saved registers</div></div></div></foreignObject><text x="60" y="149" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">initial values for c...</text></switch></g><rect x="0" y="80" width="120" height="40" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 1px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">return frame<br />(thread_create)<br /></font></div></div></div></foreignObject><text x="60" y="104" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">return frame...</text></switch></g><rect x="0" y="40" width="120" height="40" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 60px; margin-left: 1px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><span style="font-size: 11px;">thread_create args</span></div></div></div></foreignObject><text x="60" y="64" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">thread_create args</text></switch></g></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.drawio.com/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Text is not SVG - cannot display</text></a></switch></svg>
\ No newline at end of file diff --git a/content/2023-01-14-xpost-matcha-threads/yield.drawio b/content/2023-01-14-xpost-matcha-threads/yield.drawio new file mode 100644 index 0000000..164a1f1 --- /dev/null +++ b/content/2023-01-14-xpost-matcha-threads/yield.drawio @@ -0,0 +1,170 @@ +<mxfile host="Electron" modified="2024-12-17T21:47:19.951Z" agent="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/23.1.5 Chrome/120.0.6099.109 Electron/28.1.0 Safari/537.36" etag="JAmpZuPaR45DXouftlhj" version="23.1.5" type="device"> + <diagram name="Page-1" id="eupsqoG42ICuPfNcTmHv"> + <mxGraphModel dx="1195" dy="718" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="850" pageHeight="1100" math="0" shadow="0"> + <root> + <mxCell id="0" /> + <mxCell id="1" parent="0" /> + <mxCell id="eODdzWfbsgeiVxMC9DDa-1" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="240" y="400" width="120" height="240" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-2" value="<font>process address space</font>" style="text;html=1;align=center;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="240" y="360" width="120" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-3" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#FFFFFF;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="240" y="430" width="120" height="60" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-4" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="240" y="580" width="120" height="40" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-10" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=#FFFFFF;shadow=0;glass=0;fillStyle=hatch;" vertex="1" parent="1"> + <mxGeometry x="240" y="430" width="120" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-12" value="<font face="monospace">stack A</font>" style="text;whiteSpace=wrap;rotation=-90;html=1;" vertex="1" parent="1"> + <mxGeometry x="350" y="445" width="55" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-14" value="<font face="monospace">stack B</font>" style="text;whiteSpace=wrap;rotation=-90;html=1;" vertex="1" parent="1"> + <mxGeometry x="350" y="570" width="55" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-15" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=#FFFFFF;shadow=0;glass=0;fillStyle=hatch;" vertex="1" parent="1"> + <mxGeometry x="240" y="540" width="120" height="40" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-17" value="core" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#FFFFFF;fillColor=none;align=center;verticalAlign=top;" vertex="1" parent="1"> + <mxGeometry x="80" y="440" width="80" height="60" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-46" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=1;entryDx=0;entryDy=0;" edge="1" parent="1" source="eODdzWfbsgeiVxMC9DDa-20" target="eODdzWfbsgeiVxMC9DDa-25"> + <mxGeometry relative="1" as="geometry"> + <Array as="points"> + <mxPoint x="200" y="485" /> + <mxPoint x="200" y="470" /> + </Array> + </mxGeometry> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-20" value="sp" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="135" y="475" width="20" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-22" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;exitDx=0;exitDy=0;" edge="1" parent="1" source="eODdzWfbsgeiVxMC9DDa-20" target="eODdzWfbsgeiVxMC9DDa-20"> + <mxGeometry relative="1" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-25" value="<font style="font-size: 11px;">callee-saved regs</font>" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#50FA7B;fillColor=none;fontColor=#FFFFFF;" vertex="1" parent="1"> + <mxGeometry x="240" y="450" width="120" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-26" value="<font style="font-size: 11px;">callee-saved regs</font>" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ff55ff;fillColor=none;fontColor=#FFFFFF;" vertex="1" parent="1"> + <mxGeometry x="240" y="580" width="120" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-29" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="605" y="400" width="120" height="240" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-30" value="<font>process address space</font>" style="text;html=1;align=center;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="605" y="360" width="120" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-31" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#FFFFFF;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="605" y="430" width="120" height="60" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-32" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="605" y="580" width="120" height="40" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-33" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=#FFFFFF;shadow=0;glass=0;fillStyle=hatch;" vertex="1" parent="1"> + <mxGeometry x="605" y="430" width="120" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-34" value="stack A" style="text;whiteSpace=wrap;rotation=-90;fillColor=none;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="715" y="445" width="55" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-35" value="stack B" style="text;whiteSpace=wrap;rotation=-90;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="715" y="570" width="55" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-36" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=#FFFFFF;shadow=0;glass=0;fillStyle=hatch;" vertex="1" parent="1"> + <mxGeometry x="605" y="540" width="120" height="40" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-44" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=1;entryDx=0;entryDy=0;" edge="1" parent="1" source="eODdzWfbsgeiVxMC9DDa-72" target="eODdzWfbsgeiVxMC9DDa-48"> + <mxGeometry relative="1" as="geometry"> + <mxPoint x="520" y="490.5099999999999" as="sourcePoint" /> + <mxPoint x="605" y="580" as="targetPoint" /> + <Array as="points"> + <mxPoint x="565" y="485" /> + <mxPoint x="565" y="600" /> + </Array> + </mxGeometry> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-42" value="<font style="font-size: 11px;">callee-saved regs</font>" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#50FA7B;fillColor=none;fontColor=#FFFFFF;" vertex="1" parent="1"> + <mxGeometry x="605" y="450" width="120" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-19" value="regs" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#50FA7B;fillColor=none;fontColor=#FFFFFF;" vertex="1" parent="1"> + <mxGeometry x="85" y="475" width="45" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-48" value="<font style="font-size: 11px;">callee-saved regs</font>" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ff55ff;fillColor=none;fontColor=#FFFFFF;" vertex="1" parent="1"> + <mxGeometry x="605" y="580" width="120" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-49" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="240" y="720" width="120" height="260" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-50" value="<font>process address space</font>" style="text;html=1;align=center;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="240" y="680" width="120" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-51" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#FFFFFF;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="240" y="750" width="120" height="60" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-52" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="240" y="900" width="120" height="40" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-53" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=#FFFFFF;shadow=0;glass=0;fillStyle=hatch;" vertex="1" parent="1"> + <mxGeometry x="240" y="750" width="120" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-54" value="stack A" style="text;whiteSpace=wrap;rotation=-90;fillColor=none;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="350" y="765" width="55" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-55" value="stack B" style="text;whiteSpace=wrap;rotation=-90;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="350" y="890" width="55" height="30" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-56" value="" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=#FFFFFF;shadow=0;glass=0;fillStyle=hatch;" vertex="1" parent="1"> + <mxGeometry x="240" y="860" width="120" height="40" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-58" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0;entryDx=0;entryDy=0;" edge="1" parent="1" source="eODdzWfbsgeiVxMC9DDa-80"> + <mxGeometry relative="1" as="geometry"> + <mxPoint x="240" y="900" as="targetPoint" /> + <Array as="points"> + <mxPoint x="200" y="805" /> + <mxPoint x="200" y="900" /> + </Array> + <mxPoint x="160" y="809" as="sourcePoint" /> + </mxGeometry> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-61" value="<font style="font-size: 11px;">callee-saved regs</font>" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#50FA7B;fillColor=none;fontColor=#FFFFFF;" vertex="1" parent="1"> + <mxGeometry x="240" y="770" width="120" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-64" value="<font><i>(1) save callee-saved registers of current thread</i></font>" style="text;html=1;align=left;verticalAlign=top;whiteSpace=wrap;rounded=0;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="80" y="360" width="140" height="60" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-65" value="<font><i>(2) move to new stack pointer</i></font>" style="text;html=1;align=left;verticalAlign=top;whiteSpace=wrap;rounded=0;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="440" y="360" width="140" height="50" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-66" value="<font><i>(3) restore callee-saved registers of new thread</i></font>" style="text;html=1;align=left;verticalAlign=top;whiteSpace=wrap;rounded=0;fontFamily=monospace;" vertex="1" parent="1"> + <mxGeometry x="80" y="680" width="140" height="60" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-71" value="core" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#FFFFFF;fillColor=none;align=center;verticalAlign=top;" vertex="1" parent="1"> + <mxGeometry x="440" y="440" width="80" height="60" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-72" value="sp" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="495" y="475" width="20" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-73" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;exitDx=0;exitDy=0;" edge="1" parent="1" source="eODdzWfbsgeiVxMC9DDa-72" target="eODdzWfbsgeiVxMC9DDa-72"> + <mxGeometry relative="1" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-74" value="regs" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#50FA7B;fillColor=none;fontColor=#FFFFFF;" vertex="1" parent="1"> + <mxGeometry x="445" y="475" width="45" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-79" value="core" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#FFFFFF;fillColor=none;align=center;verticalAlign=top;" vertex="1" parent="1"> + <mxGeometry x="80" y="760" width="80" height="60" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-80" value="sp" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#ffffff;fillColor=none;" vertex="1" parent="1"> + <mxGeometry x="135" y="795" width="20" height="20" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-81" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;exitDx=0;exitDy=0;" edge="1" parent="1" source="eODdzWfbsgeiVxMC9DDa-80" target="eODdzWfbsgeiVxMC9DDa-80"> + <mxGeometry relative="1" as="geometry" /> + </mxCell> + <mxCell id="eODdzWfbsgeiVxMC9DDa-82" value="regs" style="rounded=0;whiteSpace=wrap;html=1;fontFamily=monospace;strokeColor=#FF55FF;fillColor=none;fontColor=#FFFFFF;" vertex="1" parent="1"> + <mxGeometry x="85" y="795" width="45" height="20" as="geometry" /> + </mxCell> + </root> + </mxGraphModel> + </diagram> +</mxfile> diff --git a/content/2023-01-14-xpost-matcha-threads/yield.svg b/content/2023-01-14-xpost-matcha-threads/yield.svg new file mode 100644 index 0000000..508a163 --- /dev/null +++ b/content/2023-01-14-xpost-matcha-threads/yield.svg @@ -0,0 +1,3 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> +<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="678px" height="621px" viewBox="-0.5 -0.5 678 621"><defs><pattern patternUnits="userSpaceOnUse" width="11.5" height="11.5" x="0" y="0" patternTransform="rotate(45)" id="mx-pattern-hatch-1-ffffff-0"><line x1="0" y1="0" x2="0" y2="11.5" stroke="#ffffff" stroke-width="1.5"/></pattern></defs><g><rect x="160" y="40" width="120" height="240" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="160" y="0" width="120" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 15px; margin-left: 161px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>process address space</font></div></div></div></foreignObject><text x="220" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">process address space</text></switch></g><rect x="160" y="70" width="120" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="160" y="220" width="120" height="40" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="160" y="70" width="120" height="20" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><rect x="270" y="85" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,297.5,100)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 289.5 125.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 126px; margin-left: 290px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font face="monospace">stack A</font></div></div></div></foreignObject><text x="290" y="138" fill="rgb(240, 240, 240)" font-family="Helvetica" font-size="12px">stack A</text></switch></g><rect x="270" y="210" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,297.5,225)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 289.5 250.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 251px; margin-left: 290px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font face="monospace">stack B</font></div></div></div></foreignObject><text x="290" y="263" fill="rgb(240, 240, 240)" font-family="Helvetica" font-size="12px">stack B</text></switch></g><rect x="160" y="180" width="120" height="40" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><rect x="0" y="80" width="80" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 87px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">core</div></div></div></foreignObject><text x="40" y="99" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">core</text></switch></g><path d="M 75 125 L 120 125 L 120 110 L 153.63 110" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 158.88 110 L 151.88 113.5 L 153.63 110 L 151.88 106.5 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/><rect x="55" y="115" width="20" height="20" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 18px; height: 1px; padding-top: 125px; margin-left: 56px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">sp</div></div></div></foreignObject><text x="65" y="129" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">sp</text></switch></g><rect x="160" y="90" width="120" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 161px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="220" y="104" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="160" y="220" width="120" height="20" fill="none" stroke="#ff55ff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 230px; margin-left: 161px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="220" y="234" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="525" y="40" width="120" height="240" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="525" y="0" width="120" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 15px; margin-left: 526px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>process address space</font></div></div></div></foreignObject><text x="585" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">process address space</text></switch></g><rect x="525" y="70" width="120" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="525" y="220" width="120" height="40" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="525" y="70" width="120" height="20" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><rect x="635" y="85" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,662.5,100)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 654.5 125.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 126px; margin-left: 655px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack A</div></div></div></foreignObject><text x="655" y="138" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack A</text></switch></g><rect x="635" y="210" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,662.5,225)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 654.5 250.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 251px; margin-left: 655px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack B</div></div></div></foreignObject><text x="655" y="263" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack B</text></switch></g><rect x="525" y="180" width="120" height="40" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><path d="M 435 125 L 485 125 L 485 240 L 518.63 240" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 523.88 240 L 516.88 243.5 L 518.63 240 L 516.88 236.5 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/><rect x="525" y="90" width="120" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 526px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="585" y="104" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="5" y="115" width="45" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 43px; height: 1px; padding-top: 125px; margin-left: 6px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">regs</div></div></div></foreignObject><text x="28" y="129" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">regs</text></switch></g><rect x="525" y="220" width="120" height="20" fill="none" stroke="#ff55ff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 230px; margin-left: 526px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="585" y="234" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="160" y="360" width="120" height="260" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="160" y="320" width="120" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 335px; margin-left: 161px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>process address space</font></div></div></div></foreignObject><text x="220" y="339" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">process address space</text></switch></g><rect x="160" y="390" width="120" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="160" y="540" width="120" height="40" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="160" y="390" width="120" height="20" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><rect x="270" y="405" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,297.5,420)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 289.5 445.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 446px; margin-left: 290px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack A</div></div></div></foreignObject><text x="290" y="458" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack A</text></switch></g><rect x="270" y="530" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,297.5,545)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 289.5 570.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 571px; margin-left: 290px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack B</div></div></div></foreignObject><text x="290" y="583" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack B</text></switch></g><rect x="160" y="500" width="120" height="40" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><path d="M 75 445 L 120 445 L 120 540 L 153.63 540" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 158.88 540 L 151.88 543.5 L 153.63 540 L 151.88 536.5 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/><rect x="160" y="410" width="120" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 420px; margin-left: 161px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="220" y="424" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="0" y="0" width="140" height="60" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 138px; height: 1px; padding-top: 7px; margin-left: 2px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font><i>(1) save callee-saved registers of current thread</i></font></div></div></div></foreignObject><text x="2" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">(1) save callee-saved r...</text></switch></g><rect x="360" y="0" width="140" height="50" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 138px; height: 1px; padding-top: 7px; margin-left: 362px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font><i>(2) move to new stack pointer</i></font></div></div></div></foreignObject><text x="362" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">(2) move to new stack p...</text></switch></g><rect x="0" y="320" width="140" height="60" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 138px; height: 1px; padding-top: 327px; margin-left: 2px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font><i>(3) restore callee-saved registers of new thread</i></font></div></div></div></foreignObject><text x="2" y="339" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">(3) restore callee-save...</text></switch></g><rect x="360" y="80" width="80" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 87px; margin-left: 361px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">core</div></div></div></foreignObject><text x="400" y="99" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">core</text></switch></g><rect x="415" y="115" width="20" height="20" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 18px; height: 1px; padding-top: 125px; margin-left: 416px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">sp</div></div></div></foreignObject><text x="425" y="129" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">sp</text></switch></g><rect x="365" y="115" width="45" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 43px; height: 1px; padding-top: 125px; margin-left: 366px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">regs</div></div></div></foreignObject><text x="388" y="129" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">regs</text></switch></g><rect x="0" y="400" width="80" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 407px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">core</div></div></div></foreignObject><text x="40" y="419" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">core</text></switch></g><rect x="55" y="435" width="20" height="20" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 18px; height: 1px; padding-top: 445px; margin-left: 56px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">sp</div></div></div></foreignObject><text x="65" y="449" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">sp</text></switch></g><rect x="5" y="435" width="45" height="20" fill="none" stroke="#ff55ff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 43px; height: 1px; padding-top: 445px; margin-left: 6px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">regs</div></div></div></foreignObject><text x="28" y="449" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">regs</text></switch></g></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.drawio.com/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Text is not SVG - cannot display</text></a></switch></svg>
\ No newline at end of file |
