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perf/urgent fixes:
User visible: - Fix misplaced check for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT in the auxtrace code, which made 'perf record' fail straight away in some architectures, even when auxtrace wasn't involved. (Adrian Hunter) Developer stuff: - Really allow to specify custom CC, AR or LD (Alexey Brodkin) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJVpnm5AAoJENZQFvNTUqpAwFYP/RkuHUpessvcueUR+xXAr6WR ANvg8rl7Wgn3hsZbH+1Hwg+BoBobR3IkmPqXBbgCvoquRm8+ozC+1GV03ng2lIRE e/IHDbp6Pq5xlTHgQlEUVWwrb7qutTUiO3+dxuVBGjyQfHwTm69R/3NCMpmAf4bl 9f6VYT9SG6YAdUe5+upQX4vrS8RRAAv5G7T1hOY3b3lNXUb2ex0ZtwP2feZ5m98y fQqRNJ8JB7os2iOt22mpAykCtVWrix1HMkEe2/alFvElnlVUjZj+ZCCO8m6/1NT4 gQboneLobAdhEqBiUXmQ1VflKnDOp7k65uktsJZqIR91qcshT7qVO7IX3TccmI9L MTXOcLrKNA7hMu55FVRLhsw0hQOmED1hEgIokhU0vHIiTUqtmoYAajsccrDGwUXr 0HnMsoPISgGMBKktBwTl3Yn6Jb09BnuFB9G4awig3oHucKwZ/WVySjfyPTemMcTP 2a0zVO3aAy6+orbfSG7e1sUSuvRs+Qer8p9MmyFlcITMTJpEOvHD4jca2DOvdRX1 8mCS2Jf+Vn8OiOo6O80DlAIpVpGVYPsvCu6UQ6nS8gx8XUYvDQ1zQBcs/LJCBh5A Le2hMIi07FLAhA8cmaNN/ZHhcjWx/iXRI4HhTQc46+gfsQhc7pywzppKQ7big3e5 ANJwXKq6m+yb9oflWSXR =fP9H -----END PGP SIGNATURE----- Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - Fix misplaced check for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT in the auxtrace code, which made 'perf record' fail straight away in some architectures, even when auxtrace wasn't involved. (Adrian Hunter) - Really allow to specify custom CC, AR or LD (Alexey Brodkin) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
commit
a6acd6a411
@ -109,9 +109,22 @@ $(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
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$(Q)$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
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$(Q)touch $(OUTPUT)PERF-VERSION-FILE
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CC = $(CROSS_COMPILE)gcc
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LD ?= $(CROSS_COMPILE)ld
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AR = $(CROSS_COMPILE)ar
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# Makefiles suck: This macro sets a default value of $(2) for the
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# variable named by $(1), unless the variable has been set by
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# environment or command line. This is necessary for CC and AR
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# because make sets default values, so the simpler ?= approach
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# won't work as expected.
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define allow-override
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$(if $(or $(findstring environment,$(origin $(1))),\
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$(findstring command line,$(origin $(1)))),,\
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$(eval $(1) = $(2)))
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endef
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# Allow setting CC and AR and LD, or setting CROSS_COMPILE as a prefix.
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$(call allow-override,CC,$(CROSS_COMPILE)gcc)
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$(call allow-override,AR,$(CROSS_COMPILE)ar)
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$(call allow-override,LD,$(CROSS_COMPILE)ld)
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PKG_CONFIG = $(CROSS_COMPILE)pkg-config
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RM = rm -f
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@ -53,11 +53,6 @@ int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
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{
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struct perf_event_mmap_page *pc = userpg;
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#if BITS_PER_LONG != 64 && !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
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pr_err("Cannot use AUX area tracing mmaps\n");
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return -1;
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#endif
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WARN_ONCE(mm->base, "Uninitialized auxtrace_mmap\n");
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mm->userpg = userpg;
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@ -73,6 +68,11 @@ int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
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return 0;
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}
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#if BITS_PER_LONG != 64 && !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
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pr_err("Cannot use AUX area tracing mmaps\n");
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return -1;
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#endif
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pc->aux_offset = mp->offset;
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pc->aux_size = mp->len;
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