a2037dba7e
LLD 10.0.0 changed the behavior of the -Ttext option, so that using -Ttext=0x0 now causes linking of the loaders to fail with: ld: error: output file too large: 18446744073707016908 bytes I reported this in https://bugs.llvm.org/show_bug.cgi?id=44715, and initially reverted the upstream change in r357259 to work around it. However, after some discussion with Fangrui Song in the upstream ticket, I think we can classify this as an unfortunate interaction between using -Ttext=0 in combination with --no-rosegment. (We added the latter in r332090, because btxld does not correctly handle input with more than 2 PT_LOAD segments.) Fangrui suggested to use a linker script instead, and Warner was already attempting this in r305353, but had to revert it due to "crypto-using boot problems" (not sure what those were :). This review updates the stand/i386/boot.ldscript to handle more sections, inserts some symbols like _edata and such that we use in libsa, and also discards any .interp section. It uses ORG which is defined on the linker command line using --defsym ORG=value to set the start of all the sections. Reviewed by: imp MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D23952 |
||
|---|---|---|
| .. | ||
| boot1.S | ||
| boot2.c | ||
| lib.h | ||
| Makefile | ||
| Makefile.depend | ||
| sio.S | ||