mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-09 04:21:49 +08:00
789ff5b6c2
The addressable signed 32-bit range for n64 MIPS `.got.plt' references is from 0xffffffff7fff8000 to 0x7fff7fff, due to how the composition of an LUI and an LD instruction works for address calculation in the 64-bit addressing mode, such as when CP0.Status.UX=1. We currently have a range check in `mips_finish_exec_plt', however it is not correct as it verifies that the `.got.plt' start address referred is between 0xffffffff80000000 and 0x7fffffff. It is also implemented as an assertion rather than a proper error message despite that the situation can be triggered by user input. Additionally there is no check made for individual `.got.plt' entries referred even though they can be out of range while the `.got.plt' start address is not. Fix all these problems and use the correct range for the check, limiting it to n64 output files, and then issue a proper error message both in `mips_finish_exec_plt' and in `_bfd_mips_elf_finish_dynamic_symbol', suggesting the use of the `-Ttext-segment=...' option that will often work and with the default linker scripts in particular. Add suitable tests covering boundary cases. bfd/ PR ld/22966 * elfxx-mips.c (_bfd_mips_elf_finish_dynamic_symbol): Verify the `.got.plt' entry referred is in range. (mips_finish_exec_plt): Correct the range check for `.got.plt' start. Replace the assertion used for that with a proper error message. ld/ PR ld/22966 * testsuite/ld-mips-elf/n64-plt-1.dd: New test. * testsuite/ld-mips-elf/n64-plt-1.gd: New test. * testsuite/ld-mips-elf/n64-plt-2.ed: New test. * testsuite/ld-mips-elf/n64-plt-3.ed: New test. * testsuite/ld-mips-elf/n64-plt-4.dd: New test. * testsuite/ld-mips-elf/n64-plt-4.gd: New test. * testsuite/ld-mips-elf/n64-plt-1.ld: New test linker script. * testsuite/ld-mips-elf/n64-plt-2.ld: New test linker script. * testsuite/ld-mips-elf/n64-plt-3.ld: New test linker script. * testsuite/ld-mips-elf/n64-plt-4.ld: New test linker script. * testsuite/ld-mips-elf/n64-plt.s: New test source. * testsuite/ld-mips-elf/n64-plt-lib.s: New test source. * testsuite/ld-mips-elf/mips-elf.exp: Run the new tests. |
||
|---|---|---|
| .. | ||
| config | ||
| ld-aarch64 | ||
| ld-alpha | ||
| ld-arc | ||
| ld-arm | ||
| ld-auto-import | ||
| ld-avr | ||
| ld-bootstrap | ||
| ld-cdtest | ||
| ld-checks | ||
| ld-cris | ||
| ld-crx | ||
| ld-cygwin | ||
| ld-d10v | ||
| ld-discard | ||
| ld-elf | ||
| ld-elfcomm | ||
| ld-elfvers | ||
| ld-elfvsb | ||
| ld-elfweak | ||
| ld-fastcall | ||
| ld-frv | ||
| ld-gc | ||
| ld-h8300 | ||
| ld-i386 | ||
| ld-ia64 | ||
| ld-ifunc | ||
| ld-libs | ||
| ld-linkonce | ||
| ld-m68hc11 | ||
| ld-m68k | ||
| ld-mep | ||
| ld-metag | ||
| ld-mips-elf | ||
| ld-misc | ||
| ld-mmix | ||
| ld-mn10300 | ||
| ld-msp430-elf | ||
| ld-nds32 | ||
| ld-nios2 | ||
| ld-pe | ||
| ld-pie | ||
| ld-plugin | ||
| ld-powerpc | ||
| ld-pru | ||
| ld-riscv-elf | ||
| ld-s12z | ||
| ld-s390 | ||
| ld-scripts | ||
| ld-selective | ||
| ld-sh | ||
| ld-shared | ||
| ld-size | ||
| ld-sparc | ||
| ld-spu | ||
| ld-srec | ||
| ld-tic6x | ||
| ld-tilegx | ||
| ld-tilepro | ||
| ld-undefined | ||
| ld-unique | ||
| ld-v850 | ||
| ld-vax-elf | ||
| ld-visium | ||
| ld-vxworks | ||
| ld-x86-64 | ||
| ld-xc16x | ||
| ld-xstormy16 | ||
| ld-xtensa | ||
| ld-z8k | ||
| lib | ||
| ChangeLog-2004 | ||
| ChangeLog-2005 | ||
| ChangeLog-2006 | ||
| ChangeLog-2007 | ||
| ChangeLog-2008 | ||
| ChangeLog-2009 | ||
| ChangeLog-2010 | ||
| ChangeLog-2011 | ||
| ChangeLog-2012 | ||
| ChangeLog-2013 | ||
| ChangeLog-2014 | ||
| ChangeLog-2015 | ||
| ChangeLog-9303 | ||