[Bug gold/32071] undefined weak hidden function symbols resolves to garbage with PIE
https://sourceware.org/bugzilla/show_bug.cgi?id=32071 --- Comment #3 from Sourceware Commits --- The master branch has been updated by H.J. Lu : https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=229ecf80f35c64145678e537daf54358d16107e3 commit 229ecf80f35c64145678e537daf54358d16107e3 Author: H.J. Lu Date: Wed Aug 21 08:06:41 2024 -0700 gold: Always resolve non-default weak undefined to 0 Non-default weak undefined symbols in executable and shared library are always resolved to 0 at runtime and don't need dynamic relocation. Tested on i686, x86-64, powerpc64le and aarch64. PR gold/32071 * symtab.cc (Symbol::final_value_is_known): Always resolve non-default weak undefined symbol in executable and shared library to 0 at runtime. * symtab.h (Symbol::needs_dynamic_reloc): Return false for non-default weak undefined symbol in executable and shared library. * testsuite/Makefile.am: Add weak_undef_test_3 and weak_undef_test_4 tests. * testsuite/Makefile.in: Regenerated. * testsuite/weak_undef_lib_4.c: New file. * testsuite/weak_undef_test_3.c: Likewise. * testsuite/weak_undef_test_4.c: Likewise. Signed-off-by: H.J. Lu -- You are receiving this mail because: You are on the CC list for the bug.
[Bug ld/32131] Should linker always check TLS relocation?
https://sourceware.org/bugzilla/show_bug.cgi?id=32131 H.J. Lu changed: What|Removed |Added Summary|Linker should always check |Should linker always check |TLS relocation |TLS relocation? -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gold/32111] --incremental-full doesn't work
https://sourceware.org/bugzilla/show_bug.cgi?id=32111 H.J. Lu changed: What|Removed |Added Version|unspecified |2.44 (HEAD) -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gold/32071] undefined weak hidden function symbols resolves to garbage with PIE
https://sourceware.org/bugzilla/show_bug.cgi?id=32071 H.J. Lu changed: What|Removed |Added Target Milestone|--- |2.44 Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #4 from H.J. Lu --- Fixed for 2.44. -- You are receiving this mail because: You are on the CC list for the bug.
[Bug ld/32131] New: Linker should always check TLS relocation
https://sourceware.org/bugzilla/show_bug.cgi?id=32131
Bug ID: 32131
Summary: Linker should always check TLS relocation
Product: binutils
Version: 2.44 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
Target: i386, x86-64
[hjl@gnu-cfl-3 tls-3]$ vi tls-main1.c
[hjl@gnu-cfl-3 tls-3]$ make
gcc -B./ -m32 -O2 -g -mtls-dialect=gnu2 -c -o tls-main1.o tls-main1.c
gcc -B./ -m32 -o x tls-main1.o tls-gd1.o
tls-gd1.o: TLS transition from R_386_TLS_GD to R_386_TLS_IE_32 against `gd' at
0x12 in section `.text' failed
./ld: failed to set dynamic section sizes: bad value
collect2: error: ld returned 1 exit status
make: *** [Makefile:24: x] Error 1
[hjl@gnu-cfl-3 tls-3]$ make clean
rm -f *.o foo* *.so
[hjl@gnu-cfl-3 tls-3]$ ls
ld Makefile tls-def1.c tls-gd1.S tls-main1.c y
[hjl@gnu-cfl-3 tls-3]$ cat tls-gd1.S
.text
.p2align 4,,15
.globl get_gd
.type get_gd, @function
get_gd:
pushl %ebx
call__x86.get_pc_thunk.bx
addl$_GLOBAL_OFFSET_TABLE_, %ebx
subl$8, %esp
movlgd@tlsgd(,%ebx,1), %eax
call___tls_get_addr@PLT
addl$8, %esp
popl%ebx
ret
.size get_gd, .-get_gd
.section .text,"axG",@progbits,__x86.get_pc_thunk.bx,comdat,unique,1
.globl __x86.get_pc_thunk.bx
.hidden __x86.get_pc_thunk.bx
.type __x86.get_pc_thunk.bx, @function
__x86.get_pc_thunk.bx:
movl(%esp), %ebx
ret
.section.note.GNU-stack,"",@progbits
[hjl@gnu-cfl-3 tls-3]$ cat tls-main1.c
extern int * get_gd (void);
__thread int gd = 4;
int
main ()
{
return get_gd () == &gd ? 0 : 1;
}
[hjl@gnu-cfl-3 tls-3]$ make y
gcc -B./ -m32 -O2 -g -c -o tls-main1.o tls-main1.c
gcc -B./ -m32 -g -shared -o libtls-gd1.so tls-gd1.S
gcc -B./ -m32 -o y tls-main1.o libtls-gd1.so -Wl,-R,.
[hjl@gnu-cfl-3 tls-3]$ ./y
Segmentation fault (core dumped)
[hjl@gnu-cfl-3 tls-3]$ make x
gcc -B./ -m32-c -o tls-gd1.o tls-gd1.S
gcc -B./ -m32 -o x tls-main1.o tls-gd1.o
tls-gd1.o: TLS transition from R_386_TLS_GD to R_386_TLS_IE_32 against `gd' at
0x12 in section `.text' failed
./ld: failed to set dynamic section sizes: bad value
collect2: error: ld returned 1 exit status
make: *** [Makefile:24: x] Error 1
[hjl@gnu-cfl-3 tls-3]$
Linker should always issue an error for
movlgd@tlsgd(,%ebx,1), %eax
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[Bug gas/32022] Assembler shouldn't accept invalid TLS instructions
https://sourceware.org/bugzilla/show_bug.cgi?id=32022 Sam James changed: What|Removed |Added See Also||https://sourceware.org/bugz ||illa/show_bug.cgi?id=32131 -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gold/32071] undefined weak hidden function symbols resolves to garbage with PIE
https://sourceware.org/bugzilla/show_bug.cgi?id=32071 --- Comment #5 from Tatsuyuki Ishi --- Thanks for fixing. -- You are receiving this mail because: You are on the CC list for the bug.
[Bug ld/32017] Linker failed to check invalid TLS sequence
https://sourceware.org/bugzilla/show_bug.cgi?id=32017 Sam James changed: What|Removed |Added See Also||https://sourceware.org/bugz ||illa/show_bug.cgi?id=32131 -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gprofng/29760] [collect app] Support profiling an already running application
https://sourceware.org/bugzilla/show_bug.cgi?id=29760 Sam James changed: What|Removed |Added CC||sam at gentoo dot org -- You are receiving this mail because: You are on the CC list for the bug.
[Bug ld/32123] Linker should check all invalid @TLSCALL usage
https://sourceware.org/bugzilla/show_bug.cgi?id=32123 Sam James changed: What|Removed |Added See Also||https://sourceware.org/bugz ||illa/show_bug.cgi?id=32131 -- You are receiving this mail because: You are on the CC list for the bug.
[Bug ld/32131] Should linker always check TLS relocation?
https://sourceware.org/bugzilla/show_bug.cgi?id=32131 Sam James changed: What|Removed |Added CC||sam at gentoo dot org See Also||https://sourceware.org/bugz ||illa/show_bug.cgi?id=32017, ||https://sourceware.org/bugz ||illa/show_bug.cgi?id=32022, ||https://sourceware.org/bugz ||illa/show_bug.cgi?id=32123 -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gas/32073] [2.44 Regression] gas failed to build x86-64 Linux kernel
https://sourceware.org/bugzilla/show_bug.cgi?id=32073 H.J. Lu changed: What|Removed |Added Status|ASSIGNED|RESOLVED Target Milestone|--- |2.44 Resolution|--- |FIXED --- Comment #31 from H.J. Lu --- Fixed. -- You are receiving this mail because: You are on the CC list for the bug.
