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[NativeAOT] Do not use private APIs on iOS/macOS #90430

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merged 5 commits into from
Aug 12, 2023
Merged

[NativeAOT] Do not use private APIs on iOS/macOS #90430

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7eb1c10
Use custom implementation of _dyld_find_unwind_sections on Apple
filipnavara Aug 11, 2023
422f838
Link against local ICU libraries on iOS-like platforms
filipnavara Aug 11, 2023
bc4d2d3
Update src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Nativ…
filipnavara Aug 11, 2023
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filipnavara Aug 12, 2023
281f9f7
Update src/coreclr/nativeaot/Runtime/unix/UnwindHelpers.cpp
filipnavara Aug 12, 2023
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3 changes: 3 additions & 0 deletions src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.Unix.targets
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Expand Up @@ -69,6 +69,9 @@ The .NET Foundation licenses this file to you under the MIT license.
<NetCoreAppNativeLibrary Include="System.Security.Cryptography.Native.Apple" Condition="'$(_IsApplePlatform)' == 'true'" />
<!-- Not compliant for iOS-like platforms -->
<NetCoreAppNativeLibrary Include="System.Security.Cryptography.Native.OpenSsl" Condition="'$(StaticOpenSslLinking)' != 'true' and '$(_IsiOSLikePlatform)' != 'true'" />
<NetCoreAppNativeLibrary Include="icudata" Condition="'$(_IsiOSLikePlatform)' == 'true' and '$(InvariantGlobalization)' != 'true'" />
<NetCoreAppNativeLibrary Include="icui18n" Condition="'$(_IsiOSLikePlatform)' == 'true' and '$(InvariantGlobalization)' != 'true'" />
<NetCoreAppNativeLibrary Include="icuuc" Condition="'$(_IsiOSLikePlatform)' == 'true' and '$(InvariantGlobalization)' != 'true'" />
</ItemGroup>

<ItemGroup>
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28 changes: 27 additions & 1 deletion src/coreclr/nativeaot/Runtime/unix/UnwindHelpers.cpp
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Expand Up @@ -8,7 +8,7 @@
#define UNW_STEP_SUCCESS 1
#define UNW_STEP_END 0

#ifdef __APPLE__
#if defined(TARGET_APPLE)
#include <mach-o/getsect.h>
#endif

Expand Down Expand Up @@ -883,3 +883,29 @@ bool UnwindHelpers::GetUnwindProcInfo(PCODE pc, UnwindInfoSections &uwInfoSectio
uc.getInfo(procInfo);
return true;
}

#if defined(TARGET_APPLE)
bool _dyld_find_unwind_sections(void* addr, dyld_unwind_sections* info)
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{
// Find mach-o image containing address.
Dl_info dlinfo;
if (!dladdr(addr, &dlinfo))
return false;

const struct mach_header_64 *mh = (const struct mach_header_64 *)dlinfo.dli_fbase;

// Initialize the return struct
info->mh = (const struct mach_header *)mh;
info->dwarf_section = getsectiondata(mh, "__TEXT", "__eh_frame", &info->dwarf_section_length);
info->compact_unwind_section = getsectiondata(mh, "__TEXT", "__unwind_info", &info->compact_unwind_section_length);

if (!info->dwarf_section) {
info->dwarf_section_length = 0;
}
if (!info->compact_unwind_section) {
info->compact_unwind_section_length = 0;
}

return true;
}
#endif
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