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glibc/sysdeps
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H.J. Lu 3502440397 x86-64: Fix the dtv field load for x32 [BZ #31184] 
On x32, I got

FAIL: elf/tst-tlsgap

$ gdb elf/tst-tlsgap
...
open tst-tlsgap-mod1.so

Thread 2 "tst-tlsgap" received signal SIGSEGV, Segmentation fault.
[Switching to LWP 2268754]
_dl_tlsdesc_dynamic () at ../sysdeps/x86_64/dl-tlsdesc.S:108
108		movq	(%rsi), %rax
(gdb) p/x $rsi
$4 = 0xf7dbf9005655fb18
(gdb)

This is caused by

_dl_tlsdesc_dynamic:
        _CET_ENDBR
        /* Preserve call-clobbered registers that we modify.
           We need two scratch regs anyway.  */
        movq    %rsi, -16(%rsp)
        movq    %fs:DTV_OFFSET, %rsi

Since the dtv field in TCB is a pointer, %fs:DTV_OFFSET is a 32-bit
location, not 64-bit.  Load the dtv field to RSI_LP instead of rsi.
This fixes BZ #31184.
2023-12-22 05:37:00 -08:00
..
aarch64 aarch64: Add SIMD attributes to math functions with vector versions 2023-12-20 08:41:25 +00:00
alpha alpha: Fix fesetexceptflag (BZ 30998) 2023-12-19 15:12:38 -03:00
arc configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
arm elf: Remove LD_PROFILE for static binaries 2023-11-21 16:15:42 -03:00
csky configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
generic elf: Do not duplicate the GLIBC_TUNABLES string 2023-12-19 13:25:45 -03:00
gnu Add TCP_MD5SIG_FLAG_IFINDEX from Linux 5.6 to netinet/tcp.h. 2023-11-28 13:44:47 +01:00
hppa hppa: Fix undefined behaviour in feclearexcept (BZ 30983) 2023-12-19 15:12:38 -03:00
htl htl: move pthread_attr_setdetachstate into libc 2023-08-24 01:57:22 +02:00
hurd hurd: Fix using interposable hurd_thread_self 2023-05-19 20:45:51 +02:00
i386 x86: Do not raises floating-point exception traps on fesetexceptflag (BZ 30990) 2023-12-19 15:12:38 -03:00
ia64 elf: Remove LD_PROFILE for static binaries 2023-11-21 16:15:42 -03:00
ieee754 math: Add new exp10 implementation 2023-12-04 15:52:11 +00:00
loongarch elf: Remove LD_PROFILE for static binaries 2023-11-21 16:15:42 -03:00
m68k elf: Remove LD_PROFILE for static binaries 2023-11-21 16:15:42 -03:00
mach hurd: [!__USE_MISC] Do not #undef BSD macros in ioctls 2023-12-02 21:26:50 +01:00
microblaze configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
mips mips: dl-machine-reject-phdr: Get rid of alloca. 2023-10-02 12:55:27 +00:00
nios2 configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
nptl Fix misspellings in sysdeps/ -- BZ 25337 2023-05-30 23:02:29 +00:00
or1k configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
posix linux: Decorate __libc_fatal error buffer 2023-11-07 10:27:53 -03:00
powerpc powerpc: Do not raise exception traps for fesetexcept/fesetexceptflag (BZ 30988) 2023-12-19 15:12:34 -03:00
pthread sysdeps: sem_open: Clear O_CREAT when semaphore file is expected to exist [BZ #30789] 2023-11-03 15:19:38 -03:00
riscv riscv: Fix feenvupdate with FE_DFL_ENV (BZ 31022) 2023-12-19 15:12:38 -03:00
s390 elf: Do not duplicate the GLIBC_TUNABLES string 2023-12-19 13:25:45 -03:00
sh elf: Remove LD_PROFILE for static binaries 2023-11-21 16:15:42 -03:00
sparc Do not build sparc32 libgcc functions into static libc 2023-12-19 16:00:11 +00:00
unix x86/cet: Update tst-cet-vfork-1 2023-12-20 04:57:21 -08:00
wordsize-32 Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wordsize-64 hurd: Fix tst-writev test 2023-05-01 13:01:30 +02:00
x86 x86/cet: Don't disable CET if not single threaded 2023-12-20 05:03:37 -08:00
x86_64 x86-64: Fix the dtv field load for x32 [BZ #31184] 2023-12-22 05:37:00 -08:00