http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54179
Bug #: 54179
Summary: please split insn-emit.c !
Classification: Unclassified
Product: gcc
Version: lto
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: jason.vas.d...@gmail.com
I've been attempting to build a "C" only bootstrap 4.7.1 compiler on x86_64
Linux.
Building the Stage1 and Stage2 compilers takes @ 8 hours on my 2.2Ghz machine -
which I have to continually cycle down to 800Mhz for 2 seconds every 8 seconds
with a script under Linux 3.4.4, otherwise I get overheating emergency reboots
-
nice!
But with -lto enabled, the build of Stage 3 compiler gets to trying to build
insn-emit.c , but has not yet completed given a previous two-day run - during
which I have to be careful not to do any extra activity which might tip the
machine past the 105 degree emergency reboot trip-point - so basically
I have to lock up my laptop in a freezer for 3-days plus in order to build
gcc :
$ ps -lp $(pgrep cc1)
F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD
0 R 0 3863 3862 99 80 0 - 64611 - pts/5 20:43:01 cc1
$ tr '\0' ' ' < /proc/3863/cmdline
/mnt/sda3/gcc/./prev-gcc/cc1 -quiet -I . -I . -I /usr/build2/gcc/gcc-4.7.1/gcc
-I /usr/build2/gcc/gcc-4.7.1/gcc/. -I /usr/build2/gcc/gcc-4.7.1/gcc/../include
-I /usr/build2/gcc/gcc-4.7.1/gcc/../libcpp/include -I
/usr/build2/gcc/gcc-4.7.1/gcc/../libdecnumber -I
/usr/build2/gcc/gcc-4.7.1/gcc/../libdecnumber/bid -I ../libdecnumber -iprefix
/mnt/sda3/gcc/prev-gcc/../lib64/gcc/x86_64-pc-linux-gnu/4.7.1/ -isystem
/mnt/sda3/gcc/./prev-gcc/include -isystem
/mnt/sda3/gcc/./prev-gcc/include-fixed -D IN_GCC -D HAVE_CONFIG_H -isystem
/usr/x86_64-pc-linux-gnu/include -isystem /usr/x86_64-pc-linux-gnu/sys-include
insn-emit.c -quiet -dumpbase insn-emit.c -mtune=k8 -march=x86-64 -auxbase-strip
insn-emit.o -g -gtoggle -O2 -Wextra -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-Wold-style-definition -Wc++-compat -o /tmp/ccgsb5Pk.s
$ ls -l /mnt/sda3/gcc/gcc/insn-emit.c
-rw-r--r-- 1 root devel 1793209 Jul 22 22:13 /mnt/sda3/gcc/gcc/insn-emit.c
$ ls -l /tmp/ccgsb5Pk.s
-rw------- 1 root root 1101824 Aug 5 11:00 /tmp/ccgsb5Pk.s
$ cat /proc/3863/map
$ cat /proc/3863/maps | wc -l
5310
Wow, that's alot of maps !
00400000-05c20000 r-xp 00000000 08:03 132489
/mnt/sda3/gcc/prev-gcc/cc1
05e1f000-05e2b000 rw-p 0581f000 08:03 132489
/mnt/sda3/gcc/prev-gcc/cc1
7fd59f821000-7fd59f836000 r-xp 00000000 08:03 135449
/mnt/sda3/gcc/prev-gcc/libgcc_s.so.1
7fd59f836000-7fd59fa35000 ---p 00015000 08:03 135449
/mnt/sda3/gcc/prev-gcc/libgcc_s.so.1
7fd59fa35000-7fd59fa36000 rw-p 00014000 08:03 135449
/mnt/sda3/gcc/prev-gcc/libgcc_s.so.1
7fd59fa36000-7fd59fb2e000 r-xp 00000000 08:06 772762
/lib64/libm-2.16.so
7fd59fb2e000-7fd59fd2d000 ---p 000f8000 08:06 772762
/lib64/libm-2.16.so
7fd59fd2d000-7fd59fd2e000 r--p 000f7000 08:06 772762
/lib64/libm-2.16.so
7fd59fd2e000-7fd59fd2f000 rw-p 000f8000 08:06 772762
/lib64/libm-2.16.so
7fd59fd2f000-7fd59fe13000 r-xp 00000000 08:06 184127
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.6.0/libstdc++.so.6.0.15
7fd59fe13000-7fd5a0013000 ---p 000e4000 08:06 184127
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.6.0/libstdc++.so.6.0.15
7fd5a0013000-7fd5a001b000 r--p 000e4000 08:06 184127
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.6.0/libstdc++.so.6.0.15
7fd5a001b000-7fd5a001d000 rw-p 000ec000 08:06 184127
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.6.0/libstdc++.so.6.0.15
7fd5a0032000-7fd5a0063000 r-xp 00000000 08:06 147372
/usr/lib64/libpolylib64.so.8.1.0
7fd5a0063000-7fd5a0263000 ---p 00031000 08:06 147372
/usr/lib64/libpolylib64.so.8.1.0
7fd5a0263000-7fd5a0264000 rw-p 00031000 08:06 147372
/usr/lib64/libpolylib64.so.8.1.0
7fd5a0268000-7fd5a0405000 r-xp 00000000 08:06 868371
/lib64/libc-2.16.so
7fd5a0405000-7fd5a0604000 ---p 0019d000 08:06 868371
/lib64/libc-2.16.so
7fd5a0604000-7fd5a0608000 r--p 0019c000 08:06 868371
/lib64/libc-2.16.so
7fd5a0608000-7fd5a060a000 rw-p 001a0000 08:06 868371
/lib64/libc-2.16.so
7fd5a060e000-7fd5a0626000 r-xp 00000000 08:06 150900
/usr/lib64/libz.so.1.2.5
7fd5a0626000-7fd5a0825000 ---p 00018000 08:06 150900
/usr/lib64/libz.so.1.2.5
7fd5a0825000-7fd5a0826000 rw-p 00017000 08:06 150900
/usr/lib64/libz.so.1.2.5
7fd5a0826000-7fd5a0828000 r-xp 00000000 08:06 772761
/lib64/libdl-2.16.so
7fd5a0828000-7fd5a0a28000 ---p 00002000 08:06 772761
/lib64/libdl-2.16.so
7fd5a0a28000-7fd5a0a29000 r--p 00002000 08:06 772761
/lib64/libdl-2.16.so
7fd5a0a29000-7fd5a0a2a000 rw-p 00003000 08:06 772761
/lib64/libdl-2.16.so
7fd5a0a2a000-7fd5a0a8c000 r-xp 00000000 08:06 155396
/usr/lib64/libgmp.so.10.0.4
7fd5a0a8c000-7fd5a0c8c000 ---p 00062000 08:06 155396
/usr/lib64/libgmp.so.10.0.4
7fd5a0c8c000-7fd5a0c95000 rw-p 00062000 08:06 155396
/usr/lib64/libgmp.so.10.0.4
7fd5a0c95000-7fd5a0ceb000 r-xp 00000000 08:06 154706
/usr/lib64/libmpfr.so.4.1.0
7fd5a0ceb000-7fd5a0eea000 ---p 00056000 08:06 154706
/usr/lib64/libmpfr.so.4.1.0
7fd5a0eea000-7fd5a0eec000 rw-p 00055000 08:06 154706
/usr/lib64/libmpfr.so.4.1.0
7fd5a0eec000-7fd5a0efe000 r-xp 00000000 08:06 151501
/usr/lib64/libmpc.so.2.0.0
7fd5a0efe000-7fd5a10fe000 ---p 00012000 08:06 151501
/usr/lib64/libmpc.so.2.0.0
7fd5a10fe000-7fd5a10ff000 rw-p 00012000 08:06 151501
/usr/lib64/libmpc.so.2.0.0
7fd5a10ff000-7fd5a1102000 r-xp 00000000 08:06 155397
/usr/lib64/libgmpxx.so.4.2.4
7fd5a1102000-7fd5a1302000 ---p 00003000 08:06 155397
/usr/lib64/libgmpxx.so.4.2.4
7fd5a1302000-7fd5a1303000 rw-p 00003000 08:06 155397
/usr/lib64/libgmpxx.so.4.2.4
7fd5a1304000-7fd5a1308000 r-xp 00000000 08:06 152307
/usr/lib64/libpwl.so.5.0.0
7fd5a1308000-7fd5a1507000 ---p 00004000 08:06 152307
/usr/lib64/libpwl.so.5.0.0
7fd5a1507000-7fd5a1508000 rw-p 00003000 08:06 152307
/usr/lib64/libpwl.so.5.0.0
7fd5a1508000-7fd5a15ee000 r-xp 00000000 08:06 152313
/usr/lib64/libppl.so.9.0.0
7fd5a15ee000-7fd5a17ee000 ---p 000e6000 08:06 152313
/usr/lib64/libppl.so.9.0.0
7fd5a17ee000-7fd5a17f1000 rw-p 000e6000 08:06 152313
/usr/lib64/libppl.so.9.0.0
7fd5a17f1000-7fd5a1cdf000 r-xp 00000000 08:06 180199
/usr/lib64/libppl_c.so.4.0.0
7fd5a1cdf000-7fd5a1ede000 ---p 004ee000 08:06 180199
/usr/lib64/libppl_c.so.4.0.0
7fd5a1ede000-7fd5a1ee3000 rw-p 004ed000 08:06 180199
/usr/lib64/libppl_c.so.4.0.0
7fd5a1ee4000-7fd5a1f03000 r-xp 00000000 08:06 147395
/usr/lib64/libcloog.so.0.0.0
7fd5a1f03000-7fd5a2102000 ---p 0001f000 08:06 147395
/usr/lib64/libcloog.so.0.0.0
7fd5a2102000-7fd5a2103000 rw-p 0001e000 08:06 147395
/usr/lib64/libcloog.so.0.0.0
7fd5a2105000-7fd5a2126000 r-xp 00000000 08:06 998045
/lib64/ld-2.16.so
7fd5a2326000-7fd5a2327000 r--p 00021000 08:06 998045
/lib64/ld-2.16.so
7fd5a2327000-7fd5a2328000 rw-p 00022000 08:06 998045
/lib64/ld-2.16.so
