[Bug ld/18297] New: ld does not report truncated relocation for R_MIPS_26 for calls from .init

[milko.leporis at imgtec dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18297

            Bug ID: 18297
           Summary: ld does not report truncated relocation for R_MIPS_26
                    for calls from .init
           Product: binutils
           Version: 2.26 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: milko.leporis at imgtec dot com

Created attachment 8260
  --> https://sourceware.org/bugzilla/attachment.cgi?id=8260&action=edit
asm file for main function

This is simplified test to reproduce the issue, 
when jal is used to jump to function in different 256MB region.


Steps to reproduce:

- create obj files from attached .S files

mipsel-linux-gnu-gcc call-from-init.S -c -o call-from-init.o
mipsel-linux-gnu-gcc crtend.S -c -o crtend.o

- link object files

mipsel-linux-gnu-ld call-from-init.o crtend.o -o call-from-init
--section-start=.init=0x0FF00000 --section-start=.text=0x10000000


- part of objdump output for call-from-init:

Disassembly of section .init:

0ff00000 <.init>:
 ff00000:       04110001        bal     ff00008 <main-0xffff8>
 ff00004:       00000000        nop
 ff00008:       0c00000c        jal     30 <main-0xfffffd0>
 ff0000c:       00000000        nop

Disassembly of section .text:

10000000 <main>:
10000000:       27bdfff8        addiu   sp,sp,-8
10000004:       afbe0004        sw      s8,4(sp)
...

10000030 <__do_global_ctors_aux>:
10000030:       3c021001        lui     v0,0x1001
10000034:       8c590090        lw      t9,144(v0)
10000038:       2402ffff        li      v0,-1
...


- jal instruction in .init will cause SEGMENTATION FAULT in runtime

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