glibc/sysdeps
H.J. Lu 15eab1e3e8 i386: Don't unnecessarily save and restore EAX, ECX and EDX [BZ# 25262]
On i386, since EAX, ECX and EDX are caller-saved, there are no need
to save and restore EAX, ECX and EDX in getcontext, setcontext and
swapcontext.  They just need to clear EAX on success.  The extra
scratch registers are needed to enable CET.

Tested on i386.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2020-02-01 05:44:55 -08:00
..
aarch64 Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
alpha Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
arm Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
csky Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
generic powerpc: Move cache line size to rtld_global_ro 2020-01-17 09:05:03 -03:00
gnu Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hppa Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
htl htl: Add internal version of __pthread_mutex_timedlock 2020-01-13 20:41:07 +01:00
hurd Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
i386 htl: Add type sizes in bits/pthreadtypes-arch.h and check them 2020-01-13 01:24:43 +01:00
ia64 Linux: Use system call tables during build 2020-01-02 10:18:23 +01:00
ieee754 Fix maybe-uninitialized error on powerpc 2020-01-17 21:02:13 -03:00
init_array Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
m68k Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
mach htl: Add internal version of __pthread_mutex_timedlock 2020-01-13 20:41:07 +01:00
microblaze Linux: Use system call tables during build 2020-01-02 10:18:23 +01:00
mips MIPS: Fix circular definition of __LDBL_MANT_DIG__ in ieee754.h 2020-01-08 14:28:23 -05:00
nios2 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
nptl nptl: Avoid using PTHREAD_MUTEX_DEFAULT in macro definition [BZ #25271] 2020-01-30 15:54:49 +01:00
posix getaddrinfo: Fix resource leak after strdup failure in gethosts [BZ #25425] 2020-01-20 18:37:13 +01:00
powerpc Fix array overflow in backtrace on PowerPC (bug 25423) 2020-01-21 15:26:57 +01:00
pthread Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
riscv Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
s390 Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
sh Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sparc Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
unix i386: Don't unnecessarily save and restore EAX, ECX and EDX [BZ# 25262] 2020-02-01 05:44:55 -08:00
wordsize-32 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
wordsize-64 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
x86 x86: Don't make 2 calls to dlerror () in a row 2020-02-01 05:43:34 -08:00
x86_64 Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00