diff options
| author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-03-14 06:29:39 +0000 |
|---|---|---|
| committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-03-14 06:29:39 +0000 |
| commit | 6c08032d2fc9fee9a433467047c50819d331d930 (patch) | |
| tree | d6d01917a7830a051d4bdeabe658af76dbf58800 /ChangeLog | |
| parent | 81ed2d65e4c33a9d2165b23b2e31a1dfeafde89c (diff) | |
| download | ruby-6c08032d2fc9fee9a433467047c50819d331d930.tar.gz | |
* addr2line.c (fill_lines): fetch symbol names from ELF binary's
symbol table if it is built with cc -g and not stripped.
Now ruby can show static symbols on Linux though glibc's
backtrace_symbols(3) don't show them.
* addr2line.c (rb_dump_backtrace_with_lines): use dladdr(3) to
detect what object file declares the symbol because
dl_iterate_phdr can't detect the main executable file
and codes on the stack.
NOTE: signal trampolines sometimes on the user stack. (FreeBSD)
* addr2line.c (rb_dump_backtrace_with_lines): stop showing
backtrace if the function's name is main.
NOTE: FreeBSD's backtrace (libexecinfo) shows _start and
an additional address. Why it doesn't remove them on dladdr phase
is, dladdr may fail to detect the main function but detect
as _start function. Therefore it must be after scanning
the symbol table and getting correct name.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45335 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 22 |
1 files changed, 22 insertions, 0 deletions
@@ -1,3 +1,25 @@ +Fri Mar 14 14:58:38 2014 NARUSE, Yui <naruse@ruby-lang.org> + + * addr2line.c (fill_lines): fetch symbol names from ELF binary's + symbol table if it is built with cc -g and not stripped. + Now ruby can show static symbols on Linux though glibc's + backtrace_symbols(3) don't show them. + + * addr2line.c (rb_dump_backtrace_with_lines): use dladdr(3) to + detect what object file declares the symbol because + dl_iterate_phdr can't detect the main executable file + and codes on the stack. + NOTE: signal trampolines sometimes on the user stack. (FreeBSD) + + * addr2line.c (rb_dump_backtrace_with_lines): stop showing + backtrace if the function's name is main. + NOTE: FreeBSD's backtrace (libexecinfo) shows _start and + an additional address. Why it doesn't remove them on dladdr phase + is, dladdr may fail to detect the main function but detect + as _start function. Therefore it must be after scanning + the symbol table and getting correct name. + + Fri Mar 14 12:07:46 2014 Zachary Scott <e@zzak.io> * doc/syntax/literals.rdoc: [DOC] Single quote strings allows escape |