https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85180
Matt Weber <matthew.weber at rockwellcollins dot com> changed:
What |Removed |Added
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CC| |matthew.weber@rockwellcolli
| |ns.com
--- Comment #20 from Matt Weber <matthew.weber at rockwellcollins dot com> ---
Another datapoint that libnss 3.35 fails to build on the microblaze arch
(uclibc) with any of the 6.x series and this bug's patch resolves that
(https://github.com/gcc-mirror/gcc/commit/df03ebc3574a0d7893127e3b9754a01abf2d8b70).
microblazeel-buildroot-linux-uclibc-gcc -o
Linux2.6_microblazeel_microblazeel-buildroot-linux-uclibc-gcc.br_real_glibc_PTH_OPT.OBJ/sslgrp.o
-c -O2 -fPIC -pipe -ffunction-sections -fdata-sections -DHAVE_STRERROR
-DLINUX -Dlinux -Wall -Werror -DXP_UNIX -UDEBUG -DNDEBUG -D_REENTRANT
-DNSS_NO_INIT_SUPPORT -DUSE_UTIL_DIRECTLY -DNO_NSPR_10_SUPPORT
-DSSL_DISABLE_DEPRECATED_CIPHER_SUITE_NAMES -Isysroot/usr/include/nspr
-Ilibnss-3.35/dist/include -I../../../dist/public/nss
-I../../../dist/private/nss sslgrp.c
However the libnss build works fine with the 7.x branch and master. I've been
bisecting all 3 branches for a few days and figured I should just try this
patch before debugging the 6.x branch further. I even went back and tried to
find common ancestors between the 6.x and 7.x and couldn't get a point where
the good/bad builds matched up. Guessing backports on 6.x from master
introduced the libnss bug variant as the gcc/cse* and gcc/alias.x files had a
lot of updates from 5.x to 7.x.
Here's the stack trace on cc1 when its hung building a libnss sslgrp.c
file.......
( A lot more find_base_terms() before this one)
#71 0x00000000005ae67d in find_base_term(rtx_def*) ()
#72 0x00000000005ae532 in find_base_term(rtx_def*) ()
#73 0x00000000005ae67d in find_base_term(rtx_def*) ()
#74 0x00000000005ae532 in find_base_term(rtx_def*) ()
#75 0x00000000005ae67d in find_base_term(rtx_def*) ()
#76 0x00000000005ae568 in find_base_term(rtx_def*) ()
#77 0x00000000005b137d in write_dependence_p(rtx_def const*, rtx_def const*,
machine_mode, rtx_def*, bool, bool, bool) ()
#78 0x00000000005b1585 in canon_anti_dependence(rtx_def const*, bool, rtx_def
const*, machine_mode, rtx_def*) ()
#79 0x000000000061c5e3 in cselib_invalidate_mem(rtx_def*) ()
#80 0x000000000061d32d in cselib_record_sets(rtx_insn*) ()
#81 0x000000000061e5c8 in cselib_process_insn(rtx_insn*) ()
#82 0x00000000008774b8 in reload_cse_regs_1() ()
#83 0x00000000008777dc in (anonymous
namespace)::pass_postreload_cse::execute(function*) ()
#84 0x000000000086714d in execute_one_pass(opt_pass*) ()
