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1301097665
After recent discussions: - "[PATCH] s390: Remove backchain-based fallback from backtrace" https://www.sourceware.org/ml/libc-alpha/2020-02/msg00287.html - "Re: [PATCH 07/11] s390: Implement backtrace on top of <unwind-link.h>" https://www.sourceware.org/ml/libc-alpha/2020-02/msg00637.html We've checked and decided to remove the backchain: We don't know of any environments without libgcc. Thus the backchain unwinder is not used. If somebody builds with -mbackchain and without fasynchronous-unwind-tables and has libgcc installed, then the libgcc unwinder is called but not the backchain-based fallback. This step allows to get rid of the s390x specific backtrace.c files at all. Furthermore the now used debug/backtrace.c version has some more advantages: - Free all resources if necessary. (libc_freeres_fn) - Remove NULL address above _start. - Check whether we make any progress while getting addresses. |
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| .. | ||
| bits | ||
| __longjmp.c | ||
| add_n.S | ||
| bsd-_setjmp.S | ||
| bsd-setjmp.S | ||
| crti.S | ||
| crtn.S | ||
| dl-machine.h | ||
| dl-trampoline.h | ||
| dl-trampoline.S | ||
| Implies | ||
| Makefile | ||
| s390x-mcount.h | ||
| s390x-mcount.S | ||
| setjmp.S | ||
| stackguard-macros.h | ||
| start.S | ||
| strncpy-z900.S | ||
| sub_n.S | ||
| sysdep.h | ||
| tls-macros.h | ||
| tst-audit.h | ||
| Versions | ||