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Makefile.OSX: add -fptrauth-* flags for arm64e to work properly

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Particularly we need -fptrauth-calls, so when pthread_once indirectly
calls ftpl_really_init, it won't fail PAC.
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usertam
2025-06-07 20:41:30 +08:00
parent 0e2dbe4ae1
commit 0277016bb5
1 changed files with 6 additions and 0 deletions
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6
src/Makefile.OSX
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@@ -64,10 +64,16 @@ LIB_LDFLAGS += -dynamiclib -current_version 0.9.11 -compatibility_version 0.7
# Therefore, we now compile for two ABIs at the same time, producing a fat library of arm64e and arm64,
# so in the end the OS gets to pick which architecture it wants at runtime.
# In addition, we need to enable signing and authentication of indirect calls (-fptrauth-calls);
# otherwise in ftpl_init, pthread_once will indirectly call ftpl_really_init, which then fail PAC.
# Ideally this should be a compiler default for the arm64e ABI, but apparently not.
ARCH := $(shell uname -m)
ifeq ($(ARCH),arm64)
CFLAGS += -arch arm64e -arch arm64
CFLAGS += -fptrauth-calls -fptrauth-returns
endif
SONAME = 1