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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