Date: Wed, 15 Aug 2018 16:22:07 -0500 From: Kyle Evans <kevans@freebsd.org> To: Warner Losh <imp@freebsd.org> Cc: src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r337868 - head/stand Message-ID: <CACNAnaHHpdJsooCC4dbv%2BJgWf_LwrHvf4Ajyi8mKcydL_wtP8A@mail.gmail.com> In-Reply-To: <201808152031.w7FKVCVa058677@repo.freebsd.org> References: <201808152031.w7FKVCVa058677@repo.freebsd.org>
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On Wed, Aug 15, 2018 at 3:31 PM, Warner Losh <imp@freebsd.org> wrote: > Author: imp > Date: Wed Aug 15 20:31:11 2018 > New Revision: 337868 > URL: https://svnweb.freebsd.org/changeset/base/337868 > > Log: > stand: Use -Oz/-Os for all loader/stand builds. > > While we're not super size constrained, the x86 BIOS /boot/loader has > to be less than about 520k-530k to be reliable. The LUA loader is at > this size today. -Oz saves 15-20% on the size, keeping us safely small > enough (comparable to where we were with the 4th loader). This will > also help with sjg's work on bringing in bearssl, though we may again > be looking for space in the LUA loader. > > Size table for clang 6.0.0: > default -O1 -Os -Oz > 4th 442368 417792 389120 376832 > lua 524288 479232 446464 430080 > > Tested by: kevans91@ (ubldr on armv7), dhw@ (loader on amdy64) > Differential Revision: https://reviews.freebsd.org/D16724 > This seems to have frustrated the MIPS build: --- ubldr --- /usr/obj/usr/src/mips.mips/stand/libsa/libsa.a(ufs.o): In function `block_map': /usr/src/stand/libsa/ufs.c:277: undefined reference to `__ashldi3' /usr/src/stand/libsa/ufs.c:277: relocation truncated to fit: R_MIPS_26 against `__ashldi3' /usr/obj/usr/src/mips.mips/stand/libsa/libsa.a(ufs.o): In function `buf_read_file': /usr/src/stand/libsa/ufs.c:402: undefined reference to `__ashrdi3' /usr/src/stand/libsa/ufs.c:402: relocation truncated to fit: R_MIPS_26 against `__ashrdi3' /usr/src/stand/libsa/ufs.c:403: undefined reference to `__ashldi3' /usr/src/stand/libsa/ufs.c:403: relocation truncated to fit: R_MIPS_26 against `__ashldi3' /usr/src/stand/libsa/ufs.c:418: undefined reference to `__ashldi3' /usr/src/stand/libsa/ufs.c:418: relocation truncated to fit: R_MIPS_26 against `__ashldi3' /usr/obj/usr/src/mips.mips/stand/libsa/libsa.a(ufs.o): In function `buf_write_file': /usr/src/stand/libsa/ufs.c:327: undefined reference to `__ashrdi3' /usr/src/stand/libsa/ufs.c:327: relocation truncated to fit: R_MIPS_26 against `__ashrdi3' /usr/src/stand/libsa/ufs.c:328: undefined reference to `__ashldi3' /usr/src/stand/libsa/ufs.c:328: relocation truncated to fit: R_MIPS_26 against `__ashldi3' /usr/src/stand/libsa/ufs.c:358: undefined reference to `__ashldi3' /usr/src/stand/libsa/ufs.c:358: relocation truncated to fit: R_MIPS_26 against `__ashldi3' /usr/src/stand/libsa/ufs.c:377: undefined reference to `__ashldi3' /usr/src/stand/libsa/ufs.c:377: relocation truncated to fit: R_MIPS_26 against `__ashldi3' /usr/obj/usr/src/mips.mips/stand/libsa/libsa.a(ufs.o): In function `read_inode': /usr/src/stand/libsa/ufs.c:166: undefined reference to `__ashldi3' /usr/src/stand/libsa/ufs.c:166: relocation truncated to fit: R_MIPS_26 against `__ashldi3' /usr/src/stand/libsa/ufs.c:166: undefined reference to `__ashldi3' /usr/src/stand/libsa/ufs.c:166: relocation truncated to fit: R_MIPS_26 against `__ashldi3' /usr/obj/usr/src/mips.mips/stand/libsa/libsa.a(ufs.o):/usr/src/stand/libsa/ufs.c:638: more undefined references to `__ashldi3' follow /usr/obj/usr/src/mips.mips/stand/libsa/libsa.a(ufs.o): In function `ufs_open': /usr/src/stand/libsa/ufs.c:638: additional relocation overflows omitted from the output
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