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![Tommi Rantala](/assets/img/avatar_default.png)
Fix function name duplication in Debug() output that was caused by manually prepending the debug message with the function name.
71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/* libunwind - a platform-independent unwind library
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This file is part of libunwind.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include "_UCD_lib.h"
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#include "_UCD_internal.h"
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/* Find the ELF image that contains IP and return the "closest"
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procedure name, if there is one. With some caching, this could be
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sped up greatly, but until an application materializes that's
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sensitive to the performance of this routine, why bother... */
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static int
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elf_w (CD_get_proc_name) (struct UCD_info *ui, unw_addr_space_t as, unw_word_t ip,
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char *buf, size_t buf_len, unw_word_t *offp)
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{
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unsigned long segbase, mapoff;
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int ret;
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/* Used to be tdep_get_elf_image() in ptrace unwinding code */
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coredump_phdr_t *cphdr = _UCD_get_elf_image(ui, ip);
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if (!cphdr)
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{
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Debug(1, "returns error: _UCD_get_elf_image failed\n");
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return -UNW_ENOINFO;
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}
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/* segbase: where it is mapped in virtual memory */
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/* mapoff: offset in the file */
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segbase = cphdr->p_vaddr;
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/*mapoff = phdr->p_offset; WRONG! phdr->p_offset is the offset in COREDUMP file */
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mapoff = 0;
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ret = elf_w (get_proc_name_in_image) (as, &ui->edi.ei, segbase, mapoff, ip, buf, buf_len, offp);
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return ret;
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}
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int
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_UCD_get_proc_name (unw_addr_space_t as, unw_word_t ip,
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char *buf, size_t buf_len, unw_word_t *offp, void *arg)
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{
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struct UCD_info *ui = arg;
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#if ELF_CLASS == ELFCLASS64
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return _Uelf64_CD_get_proc_name (ui, as, ip, buf, buf_len, offp);
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#elif ELF_CLASS == ELFCLASS32
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return _Uelf32_CD_get_proc_name (ui, as, ip, buf, buf_len, offp);
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#else
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return -UNW_ENOINFO;
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#endif
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}
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