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Return NULL for mmap fail case on Unix - #78069

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Return NULL for mmap fail case on Unix#78069
janvorli merged 7 commits into
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wscho77:return_null_when_mmap_fails

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If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case, and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.

If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case,
and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.
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ghost commented Nov 8, 2022

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I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

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This is the second use of nmap that needed changing recently,
#77952 is it worth auditing all other uses?

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I checked all mmap return value and add missing one.

@jkotasjkotas added the area-PAL-coreclr only for closed issues label Nov 9, 2022
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LGTM, thank you! Sigh, I wonder how I could get it wrong at that many places.

Comment threadsrc/coreclr/minipal/Unix/doublemapping.cpp Outdated

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Ah, I've approved it accidentally, we will need to fix the thing I've commented on in around the memset.

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wscho77 requested review from janvorli and removed request for MichalStrehovskyNovember 9, 2022 10:08
Comment threadsrc/coreclr/utilcode/executableallocator.cpp Outdated
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Hmm, some CI legs are failing with the newly added fatal error.
Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

@runfoapprunfoappBot mentioned this pull request Nov 9, 2022
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Hmm, some CI legs are failing with the newly added fatal error. Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

Oops. I fixed condition check. Thank you.

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LGTM, thank you!

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janvorli merged commit 39e9c6b into dotnet:mainNov 10, 2022
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Return NULL for mmap fail case on Unix by wscho77 · Pull Request #78069 · dotnet/runtime · GitHub
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Return NULL for mmap fail case on Unix - #78069

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janvorli merged 7 commits into
dotnet:mainfrom
wscho77:return_null_when_mmap_fails
Nov 10, 2022
Merged

Return NULL for mmap fail case on Unix#78069
janvorli merged 7 commits into
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wscho77:return_null_when_mmap_fails

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If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case, and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.

If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case,
and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.
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I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

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This is the second use of nmap that needed changing recently,
#77952 is it worth auditing all other uses?

@wscho77

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I checked all mmap return value and add missing one.

@jkotasjkotas added the area-PAL-coreclr only for closed issues label Nov 9, 2022
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LGTM, thank you! Sigh, I wonder how I could get it wrong at that many places.

Comment threadsrc/coreclr/minipal/Unix/doublemapping.cpp Outdated

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Ah, I've approved it accidentally, we will need to fix the thing I've commented on in around the memset.

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Comment threadsrc/coreclr/utilcode/executableallocator.cpp Outdated
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Hmm, some CI legs are failing with the newly added fatal error.
Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

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Hmm, some CI legs are failing with the newly added fatal error. Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

Oops. I fixed condition check. Thank you.

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LGTM, thank you!

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janvorli merged commit 39e9c6b into dotnet:mainNov 10, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' Return NULL for mmap fail case on Unix by wscho77 · Pull Request #78069 · dotnet/runtime · GitHub
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Return NULL for mmap fail case on Unix - #78069

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janvorli merged 7 commits into
dotnet:mainfrom
wscho77:return_null_when_mmap_fails
Nov 10, 2022
Merged

Return NULL for mmap fail case on Unix#78069
janvorli merged 7 commits into
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wscho77:return_null_when_mmap_fails

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If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case, and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.

If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case,
and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.
@ghost

ghost commented Nov 8, 2022

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I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

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This is the second use of nmap that needed changing recently,
#77952 is it worth auditing all other uses?

@wscho77

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I checked all mmap return value and add missing one.

@jkotasjkotas added the area-PAL-coreclr only for closed issues label Nov 9, 2022
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LGTM, thank you! Sigh, I wonder how I could get it wrong at that many places.

Comment threadsrc/coreclr/minipal/Unix/doublemapping.cpp Outdated

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Ah, I've approved it accidentally, we will need to fix the thing I've commented on in around the memset.

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Comment threadsrc/coreclr/utilcode/executableallocator.cpp Outdated
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Hmm, some CI legs are failing with the newly added fatal error.
Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

@runfoapprunfoappBot mentioned this pull request Nov 9, 2022
@ghostghost added the needs-author-action An issue or pull request that requires more info or actions from the author. label Nov 9, 2022
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Hmm, some CI legs are failing with the newly added fatal error. Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

Oops. I fixed condition check. Thank you.

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LGTM, thank you!

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janvorli merged commit 39e9c6b into dotnet:mainNov 10, 2022
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Return NULL for mmap fail case on Unix - #78069

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janvorli merged 7 commits into
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wscho77:return_null_when_mmap_fails
Nov 10, 2022
Merged

Return NULL for mmap fail case on Unix#78069
janvorli merged 7 commits into
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wscho77:return_null_when_mmap_fails

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If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case, and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.

If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case,
and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.
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I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

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This is the second use of nmap that needed changing recently,
#77952 is it worth auditing all other uses?

@wscho77

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I checked all mmap return value and add missing one.

@jkotasjkotas added the area-PAL-coreclr only for closed issues label Nov 9, 2022
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LGTM, thank you! Sigh, I wonder how I could get it wrong at that many places.

Comment threadsrc/coreclr/minipal/Unix/doublemapping.cpp Outdated

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Ah, I've approved it accidentally, we will need to fix the thing I've commented on in around the memset.

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Comment threadsrc/coreclr/utilcode/executableallocator.cpp Outdated
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Hmm, some CI legs are failing with the newly added fatal error.
Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

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Hmm, some CI legs are failing with the newly added fatal error. Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

Oops. I fixed condition check. Thank you.

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LGTM, thank you!

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janvorli merged commit 39e9c6b into dotnet:mainNov 10, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ' Return NULL for mmap fail case on Unix by wscho77 · Pull Request #78069 · dotnet/runtime · GitHub
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Return NULL for mmap fail case on Unix - #78069

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wscho77:return_null_when_mmap_fails
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Return NULL for mmap fail case on Unix#78069
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wscho77:return_null_when_mmap_fails

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If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case, and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.

If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case,
and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.
@ghost

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This is the second use of nmap that needed changing recently,
#77952 is it worth auditing all other uses?

@wscho77

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I checked all mmap return value and add missing one.

@jkotasjkotas added the area-PAL-coreclr only for closed issues label Nov 9, 2022
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LGTM, thank you! Sigh, I wonder how I could get it wrong at that many places.

Comment threadsrc/coreclr/minipal/Unix/doublemapping.cpp Outdated

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Ah, I've approved it accidentally, we will need to fix the thing I've commented on in around the memset.

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Comment threadsrc/coreclr/utilcode/executableallocator.cpp Outdated
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Hmm, some CI legs are failing with the newly added fatal error.
Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

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@ghostghost added the needs-author-action An issue or pull request that requires more info or actions from the author. label Nov 9, 2022
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Hmm, some CI legs are failing with the newly added fatal error. Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

Oops. I fixed condition check. Thank you.

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LGTM, thank you!

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janvorli merged commit 39e9c6b into dotnet:mainNov 10, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' Return NULL for mmap fail case on Unix by wscho77 · Pull Request #78069 · dotnet/runtime · GitHub
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Return NULL for mmap fail case on Unix - #78069

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janvorli merged 7 commits into
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wscho77:return_null_when_mmap_fails
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Return NULL for mmap fail case on Unix#78069
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If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case, and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.

If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case,
and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.
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ghost commented Nov 8, 2022

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This is the second use of nmap that needed changing recently,
#77952 is it worth auditing all other uses?

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I checked all mmap return value and add missing one.

@jkotasjkotas added the area-PAL-coreclr only for closed issues label Nov 9, 2022
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LGTM, thank you! Sigh, I wonder how I could get it wrong at that many places.

Comment threadsrc/coreclr/minipal/Unix/doublemapping.cpp Outdated

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Ah, I've approved it accidentally, we will need to fix the thing I've commented on in around the memset.

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wscho77 requested review from janvorli and removed request for MichalStrehovskyNovember 9, 2022 10:08
Comment threadsrc/coreclr/utilcode/executableallocator.cpp Outdated
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Hmm, some CI legs are failing with the newly added fatal error.
Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

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Hmm, some CI legs are failing with the newly added fatal error. Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

Oops. I fixed condition check. Thank you.

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LGTM, thank you!

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janvorli merged commit 39e9c6b into dotnet:mainNov 10, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' Return NULL for mmap fail case on Unix by wscho77 · Pull Request #78069 · dotnet/runtime · GitHub
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Return NULL for mmap fail case on Unix - #78069

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wscho77:return_null_when_mmap_fails
Nov 10, 2022
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Return NULL for mmap fail case on Unix#78069
janvorli merged 7 commits into
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wscho77:return_null_when_mmap_fails

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If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case, and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.

If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case,
and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.
@ghost

ghost commented Nov 8, 2022

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I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

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This is the second use of nmap that needed changing recently,
#77952 is it worth auditing all other uses?

@wscho77

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I checked all mmap return value and add missing one.

@jkotasjkotas added the area-PAL-coreclr only for closed issues label Nov 9, 2022
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LGTM, thank you! Sigh, I wonder how I could get it wrong at that many places.

Comment threadsrc/coreclr/minipal/Unix/doublemapping.cpp Outdated

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Ah, I've approved it accidentally, we will need to fix the thing I've commented on in around the memset.

@wscho77
wscho77 requested review from janvorli and removed request for MichalStrehovskyNovember 9, 2022 10:08
Comment threadsrc/coreclr/utilcode/executableallocator.cpp Outdated
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Hmm, some CI legs are failing with the newly added fatal error.
Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

@runfoapprunfoappBot mentioned this pull request Nov 9, 2022
@ghostghost added the needs-author-action An issue or pull request that requires more info or actions from the author. label Nov 9, 2022
Co-authored-by: Jan Vorlicek <jan.vorlicek@volny.cz>
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Hmm, some CI legs are failing with the newly added fatal error. Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

Oops. I fixed condition check. Thank you.

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LGTM, thank you!

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janvorli merged commit 39e9c6b into dotnet:mainNov 10, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Universal Dark Mode - works on any site (function() { var enabled = true; function applyDarkMode() { if (!enabled) return; // Create style element if it doesn't exist var style = document.getElementById('universal-dark-mode-style'); if (!style) { style = document.createElement('style'); style.id = 'universal-dark-mode-style'; document.head.appendChild(style); } // Dark mode CSS - inverts colors but preserves images/video style.textContent = ' /* Invert everything except media */ html { filter: invert(1) hue-rotate(180deg) !important; background: #1a1a2e !important; } /* Restore images, videos, iframes, canvas */ img, video, iframe, canvas, svg, picture, [style*="background-image"] { filter: invert(1) hue-rotate(180deg) !important; } /* Preserve specific elements that should not be inverted */ .no-dark-mode, .no-dark-mode *, [data-theme="light"], [data-theme="light"], .ace_editor, .ace_editor *, .CodeMirror, .CodeMirror *, .monaco-editor, .monaco-editor *, .markdown-body pre, .markdown-body pre *, .highlight, .highlight *, pre code, pre code * { filter: none !important; } /* Fix common UI elements */ .modal, .popup, .dropdown-menu, .tooltip, .popover { filter: invert(1) hue-rotate(180deg) !important; background: #2d2d44 !important; border-color: #444 !important; } /* Scrollbars */ ::-webkit-scrollbar { background: #1a1a2e !important; } ::-webkit-scrollbar-thumb { background: #444 !important; } ::-webkit-scrollbar-thumb:hover { background: #555 !important; } /* Selection */ ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; } ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; } '; } function removeDarkMode() { var style = document.getElementById('universal-dark-mode-style'); if (style) style.remove(); } // Toggle with Alt+Shift+D document.addEventListener('keydown', function(e) { if (e.altKey && e.shiftKey && e.key === 'D') { e.preventDefault(); enabled = !enabled; if (enabled) { applyDarkMode(); console.log('[Universal Dark Mode] Enabled'); } else { removeDarkMode(); console.log('[Universal Dark Mode] Disabled'); } } }); // Apply on load applyDarkMode(); // Re-apply on dynamic content var observer = new MutationObserver(function(mutations) { if (enabled && !document.getElementById('universal-dark-mode-style')) { applyDarkMode(); } }); observer.observe(document.head, { childList: true }); console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle'); })(); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })(); Return NULL for mmap fail case on Unix by wscho77 · Pull Request #78069 · dotnet/runtime · GitHub
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Return NULL for mmap fail case on Unix - #78069

Merged
janvorli merged 7 commits into
dotnet:mainfrom
wscho77:return_null_when_mmap_fails
Nov 10, 2022
Merged

Return NULL for mmap fail case on Unix#78069
janvorli merged 7 commits into
dotnet:mainfrom
wscho77:return_null_when_mmap_fails

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If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case, and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.

If mmap failed, "MAP_FAILED" is returned not "NULL".
The windows implememtation of GetRWMapping returns "NULL" for fail case,
and the caller function is also checking "NULL".
So, change Unix implementation to return "NULL" for fail case.
@ghost

ghost commented Nov 8, 2022

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I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

@Wraith2

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This is the second use of nmap that needed changing recently,
#77952 is it worth auditing all other uses?

@wscho77

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I checked all mmap return value and add missing one.

@jkotasjkotas added the area-PAL-coreclr only for closed issues label Nov 9, 2022
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jkotas requested a review from janvorliNovember 9, 2022 01:29

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LGTM, thank you! Sigh, I wonder how I could get it wrong at that many places.

Comment threadsrc/coreclr/minipal/Unix/doublemapping.cpp Outdated

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Ah, I've approved it accidentally, we will need to fix the thing I've commented on in around the memset.

@wscho77
wscho77 requested review from janvorli and removed request for MichalStrehovskyNovember 9, 2022 10:08
Comment threadsrc/coreclr/utilcode/executableallocator.cpp Outdated
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Hmm, some CI legs are failing with the newly added fatal error.
Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

@runfoapprunfoappBot mentioned this pull request Nov 9, 2022
@ghostghost added the needs-author-action An issue or pull request that requires more info or actions from the author. label Nov 9, 2022
Co-authored-by: Jan Vorlicek <jan.vorlicek@volny.cz>
@ghostghost removed the needs-author-action An issue or pull request that requires more info or actions from the author. label Nov 9, 2022
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Hmm, some CI legs are failing with the newly added fatal error. Ah, I can see the problem, the condition added in the VMToOSInterface::ReleaseDoubleMappedMemory is reverse.

Oops. I fixed condition check. Thank you.

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LGTM, thank you!

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janvorli merged commit 39e9c6b into dotnet:mainNov 10, 2022
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