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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 10:17:59 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 10:17:59 -0700 |
commit | 38b3a5aaf2fd35e997550b855cfb7460b077236a (patch) | |
tree | 88a13c8dfc117a43da8ebabc155b514631f680c2 /tools/include | |
parent | 6929f71e46bdddbf1c4d67c2728648176c67c555 (diff) | |
parent | 3e9b26dc2268cfbeef85bee095f883264c18425c (diff) | |
download | linux-38b3a5aaf2fd35e997550b855cfb7460b077236a.tar.gz |
Merge tag 'perf-tools-2020-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tooling updates from Arnaldo Carvalho de Melo: "These are additional changes to the perf tools, on top of what Ingo already submitted. - Further Intel PT call-trace fixes - Improve SELinux docs and tool warnings - Fix race at exit in 'perf record' using eventfd. - Add missing build tests to the default set of 'make -C tools/perf build-test' - Sync msr-index.h getting new AMD MSRs to decode and filter in 'perf trace'. - Fix fallback to libaudit in 'perf trace' for arches not using per-arch *.tbl files. - Fixes for 'perf ftrace'. - Fixes and improvements for the 'perf stat' metrics. - Use dummy event to get PERF_RECORD_{FORK,MMAP,etc} while synthesizing those metadata events for pre-existing threads. - Fix leaks detected using clang tooling. - Improvements to PMU event metric testing. - Report summary for 'perf stat' interval mode at the end, summing up all the intervals. - Improve pipe mode, i.e. this now works as expected, continuously dumping samples: # perf record -g -e raw_syscalls:sys_enter | perf --no-pager script - Fixes for event grouping, detecting incompatible groups such as: # perf stat -e '{cycles,power/energy-cores/}' -v WARNING: group events cpu maps do not match, disabling group: anon group { power/energy-cores/, cycles } power/energy-cores/: 0 cycles: 0-7 - Fixes for 'perf probe': blacklist address checking, number of kretprobe instances, etc. - JIT processing improvements and fixes plus the addition of a 'perf test' entry for the java demangler. - Add support for synthesizing first/last level cache, TLB and remove access events from HW tracing in the auxtrace code, first to use is ARM SPE. - Vendor events updates and fixes, including for POWER9 and Intel. - Allow using ~/.perfconfig for removing the ',' separators in 'perf stat' output. - Opt-in support for libpfm4" * tag 'perf-tools-2020-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (120 commits) perf tools: Remove some duplicated includes perf symbols: Fix kernel maps for kcore and eBPF tools arch x86: Sync the msr-index.h copy with the kernel sources perf stat: Ensure group is defined on top of the same cpu mask perf libdw: Fix off-by 1 relative directory includes perf arm-spe: Support synthetic events perf auxtrace: Add four itrace options perf tools: Move arm-spe-pkt-decoder.h/c to the new dir perf test: Initialize memory in dwarf-unwind perf tests: Don't tail call optimize in unwind test tools compiler.h: Add attribute to disable tail calls perf build: Add a LIBPFM4=1 build test entry perf tools: Add optional support for libpfm4 perf tools: Correct license on jsmn JSON parser perf jit: Fix inaccurate DWARF line table perf jvmti: Remove redundant jitdump line table entries perf build: Add NO_SDT=1 to the default set of build tests perf build: Add NO_LIBCRYPTO=1 to the default set of build tests perf build: Add NO_SYSCALL_TABLE=1 to the build tests perf build: Remove libaudit from the default feature checks ...
Diffstat (limited to 'tools/include')
-rw-r--r-- | tools/include/linux/compiler-gcc.h | 12 | ||||
-rw-r--r-- | tools/include/linux/compiler.h | 3 |
2 files changed, 15 insertions, 0 deletions
diff --git a/tools/include/linux/compiler-gcc.h b/tools/include/linux/compiler-gcc.h index 95c072b70d0e..b9d4322e1e65 100644 --- a/tools/include/linux/compiler-gcc.h +++ b/tools/include/linux/compiler-gcc.h @@ -27,6 +27,18 @@ #define __pure __attribute__((pure)) #endif #define noinline __attribute__((noinline)) +#ifdef __has_attribute +#if __has_attribute(disable_tail_calls) +#define __no_tail_call __attribute__((disable_tail_calls)) +#endif +#endif +#ifndef __no_tail_call +#if GCC_VERSION > 40201 +#define __no_tail_call __attribute__((optimize("no-optimize-sibling-calls"))) +#else +#define __no_tail_call +#endif +#endif #ifndef __packed #define __packed __attribute__((packed)) #endif diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index 180f7714a5f1..9f9002734e19 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -47,6 +47,9 @@ #ifndef noinline #define noinline #endif +#ifndef __no_tail_call +#define __no_tail_call +#endif /* Are two types/vars the same type (ignoring qualifiers)? */ #ifndef __same_type |