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ck: Correct asm output operand widths in amd64 pointer intrinsics

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This does not appear to change generated code with the default
toolchain.  However, KMSAN makes use of output operand specifications to
instrument inline asm, and with incorrect specifications we get false
positives in code that uses the CK_(S)LIST macros.

This was submitted upstream:
https://github.com/concurrencykit/ck/pull/175

The commit applies the same change locally to make KMSAN usable until
something equivalent is merged upstream.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Mark Johnston 2021-08-10 17:23:49 -04:00
parent 100949103a
commit d75884df78
1 changed files with 14 additions and 14 deletions
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28
sys/contrib/ck/include/gcc/x86_64/ck_pr.h
View file

@ -149,7 +149,7 @@ ck_pr_rfo(const void *m)
return v; \
}
CK_PR_FAS(ptr, void, void *, char, "xchgq")
CK_PR_FAS(ptr, void, void *, uint64_t, "xchgq")
#define CK_PR_FAS_S(S, T, I) CK_PR_FAS(S, T, T, T, I)
@ -182,7 +182,7 @@ CK_PR_FAS_S(8, uint8_t, "xchgb")
return (r); \
}
CK_PR_LOAD(ptr, void, void *, char, "movq")
CK_PR_LOAD(ptr, void, void *, uint64_t, "movq")
#define CK_PR_LOAD_S(S, T, I) CK_PR_LOAD(S, T, T, T, I)
@ -264,7 +264,7 @@ CK_PR_LOAD_2(8, 16, uint8_t)
return; \
}
CK_PR_STORE_IMM(ptr, void, const void *, char, "movq", CK_CC_IMM_U32)
CK_PR_STORE_IMM(ptr, void, const void *, uint64_t, "movq", CK_CC_IMM_U32)
#ifndef CK_PR_DISABLE_DOUBLE
CK_PR_STORE(double, double, double, double, "movq")
#endif
@ -298,7 +298,7 @@ CK_PR_STORE_S(8, uint8_t, "movb", CK_CC_IMM_U32)
return (d); \
}
CK_PR_FAA(ptr, void, uintptr_t, char, "xaddq")
CK_PR_FAA(ptr, void, uintptr_t, uint64_t, "xaddq")
#define CK_PR_FAA_S(S, T, I) CK_PR_FAA(S, T, T, T, I)
@ -347,7 +347,7 @@ CK_PR_FAA_S(8, uint8_t, "xaddb")
#define CK_PR_UNARY_S(K, S, T, I) CK_PR_UNARY(K, S, T, T, I)
#define CK_PR_GENERATE(K) \
CK_PR_UNARY(K, ptr, void, char, #K "q") \
CK_PR_UNARY(K, ptr, void, uint64_t, #K "q") \
CK_PR_UNARY_S(K, char, char, #K "b") \
CK_PR_UNARY_S(K, int, int, #K "l") \
CK_PR_UNARY_S(K, uint, unsigned int, #K "l") \
@ -388,7 +388,7 @@ CK_PR_GENERATE(not)
#define CK_PR_BINARY_S(K, S, T, I, O) CK_PR_BINARY(K, S, T, T, T, I, O)
#define CK_PR_GENERATE(K) \
CK_PR_BINARY(K, ptr, void, uintptr_t, char, #K "q", CK_CC_IMM_U32) \
CK_PR_BINARY(K, ptr, void, uintptr_t, uint64_t, #K "q", CK_CC_IMM_U32) \
CK_PR_BINARY_S(K, char, char, #K "b", CK_CC_IMM_S32) \
CK_PR_BINARY_S(K, int, int, #K "l", CK_CC_IMM_S32) \
CK_PR_BINARY_S(K, uint, unsigned int, #K "l", CK_CC_IMM_U32) \
@ -424,7 +424,7 @@ CK_PR_GENERATE(xor)
return z; \
}
CK_PR_CAS(ptr, void, void *, char, "cmpxchgq")
CK_PR_CAS(ptr, void, void *, uint64_t, "cmpxchgq")
#define CK_PR_CAS_S(S, T, I) CK_PR_CAS(S, T, T, T, I)
@ -462,7 +462,7 @@ CK_PR_CAS_S(8, uint8_t, "cmpxchgb")
return z; \
}
CK_PR_CAS_O(ptr, void, void *, char, "q", "rax")
CK_PR_CAS_O(ptr, void, void *, uint64_t, "q", "rax")
#define CK_PR_CAS_O_S(S, T, I, R) \
CK_PR_CAS_O(S, T, T, T, I, R)
@ -587,12 +587,12 @@ CK_PR_CAS_V(8, 16, uint8_t)
#define CK_PR_BT_S(K, S, T, I) CK_PR_BT(K, S, T, T, T, I)
#define CK_PR_GENERATE(K) \
CK_PR_BT(K, ptr, void, uint64_t, char, #K "q %2, %0") \
CK_PR_BT_S(K, uint, unsigned int, #K "l %2, %0") \
CK_PR_BT_S(K, int, int, #K "l %2, %0") \
CK_PR_BT_S(K, 64, uint64_t, #K "q %2, %0") \
CK_PR_BT_S(K, 32, uint32_t, #K "l %2, %0") \
#define CK_PR_GENERATE(K) \
CK_PR_BT(K, ptr, void, uint64_t, uint64_t, #K "q %2, %0") \
CK_PR_BT_S(K, uint, unsigned int, #K "l %2, %0") \
CK_PR_BT_S(K, int, int, #K "l %2, %0") \
CK_PR_BT_S(K, 64, uint64_t, #K "q %2, %0") \
CK_PR_BT_S(K, 32, uint32_t, #K "l %2, %0") \
CK_PR_BT_S(K, 16, uint16_t, #K "w %w2, %0")
CK_PR_GENERATE(btc)