Details
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New Feature
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Status: Open (View Workflow)
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Major
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Resolution: Unresolved
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None
Description
Part of libelf, though packages as libdw (at least in debian). This is the newer version on bfd for stack resolution.
From source; https://sourceware.org/elfutils/, "The libraries and backends are dual GPLv2+/LGPLv3+. The utilities are GPLv3+", so staying with the libraries will mean there isn't non-distributable option.
init
static char *debuginfo_path; |
static const Dwfl_Callbacks proc_callbacks = |
{
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.find_debuginfo = dwfl_standard_find_debuginfo,
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.debuginfo_path = &debuginfo_path,
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.find_elf = dwfl_linux_proc_find_elf,
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};
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Dwfl *dwfl = dwfl_begin (&proc_callbacks);
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if (dwfl == NULL) |
error (2, 0, "dwfl_begin: %s", dwfl_errmsg (-1)); |
int result = dwfl_linux_proc_report (dwfl, pid); // prints maps |
result = dwfl_linux_proc_attach (dwfl, pid, true); // other option?, there where thread based attaches |
Resolution; example addr2line.
Dwfl_Module *mod = dwfl_addrmodule (dwfl, addr);
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Dwfl_Line *line = dwfl_module_getsrc (mod, addr);
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src = dwfl_lineinfo (line, &addr, &lineno, &linecol, NULL, NULL)
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Using libelf, this integrates with debuginfod (when we run a service), or just rely on distro.
Attachments
Issue Links
- relates to
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MDEV-21010 Mariadb hangs (during a backtrace), stops responding to new connections
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- Open
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- Open
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MDBF-261 Provide debuginfod service
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- Open
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- Closed
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- Open
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- Closed
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