lkml.org 
[lkml]   [2023]   [Jan]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 0/9] perf symbols: Improve dso__synthesize_plt_symbols() for x86
Date
Hi

This is the second of 2 patchsets to improve dso__synthesize_plt_symbols().
This patchset focuses on getting rid of unknown symbols that show up in
Intel PT traces.

x86 has 2 more plt's, namely .plt.sec and .plt.got, so support is added for
synthesizing symbols for them. Special handing is needed for IFUNC symbols,
and it is also possible to have a .plt for static executables, so support is
added for that.


Adrian Hunter (9):
perf symbols: Correct plt entry sizes for x86
perf symbols: Add support for x86 .plt.sec
perf symbols: Sort plt relocations for x86
perf symbols: Record whether a symbol is an alias for an IFUNC symbol
perf symbols: Add support for IFUNC symbols for x86_64
perf symbols: Allow for .plt without header
perf symbols: Allow for static executables with .plt
perf symbols: Start adding support for .plt.got for x86
perf symbols: Get symbols for .plt.got for x86-64

tools/perf/util/symbol-elf.c | 362 ++++++++++++++++++++++++++++++++++++++++---
tools/perf/util/symbol.c | 4 +
tools/perf/util/symbol.h | 2 +
tools/perf/util/symsrc.h | 1 +
4 files changed, 347 insertions(+), 22 deletions(-)


Regards
Adrian

\
 
 \ /
  Last update: 2023-03-26 23:58    [W:0.151 / U:0.804 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site