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Instruments crashes app with Hardened Runtime on macOS Mojave

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I found that Xcode 10 Instruments (Leaks) would fail to attach to a command-line application signed with Hardened Runtime enabled, with the following error:

Error: Failed to attach to target process

I added the com.apple.security.get-task-allow entitlement to the application, and re-signed it. Then, instead of failing to attach, the application would crash with signal 9. When the application crashed, the following was logged to Console.app:

CODE SIGNING: process 93890[appname]: rejecting invalid page at address 0x1015f9000 from offset 0x0 in file "" (cs_mtime:0.0 == mtime:0.0) (signed:0 validated:0 tainted:0 nx:0 wpmapped:1 dirty:0 depth:0)

How do attach Instruments to this application? I am running macOS Mojave.

xcode macos macos-mojave codesign xcode-instruments

share|improve this question

edited Mar 9 at 5:05

craig65535

asked Mar 9 at 4:49

craig65535craig65535

2,1531439

add a comment | 

0

I found that Xcode 10 Instruments (Leaks) would fail to attach to a command-line application signed with Hardened Runtime enabled, with the following error:

Error: Failed to attach to target process

I added the com.apple.security.get-task-allow entitlement to the application, and re-signed it. Then, instead of failing to attach, the application would crash with signal 9. When the application crashed, the following was logged to Console.app:

CODE SIGNING: process 93890[appname]: rejecting invalid page at address 0x1015f9000 from offset 0x0 in file "" (cs_mtime:0.0 == mtime:0.0) (signed:0 validated:0 tainted:0 nx:0 wpmapped:1 dirty:0 depth:0)

How do attach Instruments to this application? I am running macOS Mojave.

xcode macos macos-mojave codesign xcode-instruments

share|improve this question

edited Mar 9 at 5:05

craig65535

asked Mar 9 at 4:49

craig65535craig65535

2,1531439

add a comment | 

I found that Xcode 10 Instruments (Leaks) would fail to attach to a command-line application signed with Hardened Runtime enabled, with the following error:

Error: Failed to attach to target process

I added the com.apple.security.get-task-allow entitlement to the application, and re-signed it. Then, instead of failing to attach, the application would crash with signal 9. When the application crashed, the following was logged to Console.app:

CODE SIGNING: process 93890[appname]: rejecting invalid page at address 0x1015f9000 from offset 0x0 in file "" (cs_mtime:0.0 == mtime:0.0) (signed:0 validated:0 tainted:0 nx:0 wpmapped:1 dirty:0 depth:0)

How do attach Instruments to this application? I am running macOS Mojave.

xcode macos macos-mojave codesign xcode-instruments

share|improve this question

edited Mar 9 at 5:05

craig65535

asked Mar 9 at 4:49

craig65535craig65535

2,1531439

share|improve this question

edited Mar 9 at 5:05

craig65535

asked Mar 9 at 4:49

craig65535craig65535

2,1531439

share|improve this question

edited Mar 9 at 5:05

craig65535

asked Mar 9 at 4:49

craig65535craig65535

2,1531439

asked Mar 9 at 4:49

craig65535craig65535

2,1531439

asked Mar 9 at 4:49

craig65535craig65535

2,1531439

1 Answer
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I found two ways to fix this:

1. Do not codesign with Hardened Runtime enabled - this is a good solution for debug builds, but not for a release build that you might want to notarize. Additionally, it misses out on the security protections provided by Hardened Runtime.




2. Add another entitlement: com.apple.security.cs.disable-executable-page-protection. This works, but it concerns me that it is required. It also impacts security, but less so than the first solution.

share|improve this answer

edited Mar 9 at 5:05

answered Mar 9 at 4:49

craig65535craig65535

2,1531439

add a comment | 

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I found two ways to fix this:

1. Do not codesign with Hardened Runtime enabled - this is a good solution for debug builds, but not for a release build that you might want to notarize. Additionally, it misses out on the security protections provided by Hardened Runtime.




2. Add another entitlement: com.apple.security.cs.disable-executable-page-protection. This works, but it concerns me that it is required. It also impacts security, but less so than the first solution.

share|improve this answer

edited Mar 9 at 5:05

answered Mar 9 at 4:49

craig65535craig65535

2,1531439

add a comment | 

0

I found two ways to fix this:

1. Do not codesign with Hardened Runtime enabled - this is a good solution for debug builds, but not for a release build that you might want to notarize. Additionally, it misses out on the security protections provided by Hardened Runtime.




2. Add another entitlement: com.apple.security.cs.disable-executable-page-protection. This works, but it concerns me that it is required. It also impacts security, but less so than the first solution.

share|improve this answer

edited Mar 9 at 5:05

answered Mar 9 at 4:49

craig65535craig65535

2,1531439

add a comment | 

I found two ways to fix this:

1. Do not codesign with Hardened Runtime enabled - this is a good solution for debug builds, but not for a release build that you might want to notarize. Additionally, it misses out on the security protections provided by Hardened Runtime.




2. Add another entitlement: com.apple.security.cs.disable-executable-page-protection. This works, but it concerns me that it is required. It also impacts security, but less so than the first solution.

share|improve this answer

edited Mar 9 at 5:05

answered Mar 9 at 4:49

craig65535craig65535

2,1531439

share|improve this answer

edited Mar 9 at 5:05

answered Mar 9 at 4:49

craig65535craig65535

2,1531439

answered Mar 9 at 4:49

craig65535craig65535

2,1531439

answered Mar 9 at 4:49

craig65535craig65535

2,1531439