https://sourceware.org/bugzilla/show_bug.cgi?id=25062
Bug ID: 25062
Summary: arm: R_ARM_TLS_GOTDESC negative addend is not handled
on 64bit host
Product: binutils
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: nsz at gcc dot gnu.org
Target Milestone: ---
negative R_ARM_TLS_GOTDESC addend is not handled by ld
on 64-bit host, which can crash ld.
$ cat x.s
.text
.globl foo
.type foo, %function
foo:
1:
.word tlsdata(tlsdesc) + (. - 2f)
2:
blx tlsdata(tlscall)
.section .tdata,"awT"
tlsdata:
.space 4
$ arm-none-linux-gnueabihf-as -o x.o x.s
$ arm-none-linux-gnueabihf-objdump -rdw x.o
x.o: file format elf32-littlearm
Disassembly of section .text:
00000000 <foo>:
0: fffffffc .word 0xfffffffc 0: R_ARM_TLS_GOTDESC tlsdata
4: fa000000 blx 8 <foo+0x8> 4: R_ARM_TLS_CALL tlsdata
$ arm-none-linux-gnueabihf-ld -shared x.o
Segmentation fault (core dumped)
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