about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/s390/s390-32
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-32')
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c24
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S (renamed from sysdeps/unix/sysv/linux/s390/s390-32/getcontext-common.S)50
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S10
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S24
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.sym26
6 files changed, 22 insertions, 113 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c b/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
index a1b7a6a1ae..e74f335768 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
@@ -26,8 +26,8 @@
 #include <stdint.h>
 #include <signal.h>
 #include <sys/syscall.h>
-#include <libc-symbols.h>
-#include <shlib-compat.h>
+
+#define __longjmp ____longjmp_chk
 
 #define CHECK_SP(env, guard) \
   do									\
@@ -51,22 +51,4 @@
 	}								\
     } while (0)
 
-
-#if defined NOT_IN_libc
-/* Build a non-versioned object for rtld-*.  */
-# define __longjmp ____longjmp_chk
-# include "__longjmp-common.c"
-
-#else /* !NOT_IN_libc */
-# define __longjmp  ____v2__longjmp_chk
-# include "__longjmp-common.c"
-
-# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_11, GLIBC_2_19)
-#  undef __longjmp
-#  define __V1_JMPBUF
-#  define __longjmp  ____v1__longjmp_chk
-#  include "__longjmp-common.c"
-#  undef __longjmp
-
-# endif
-#endif /* !NOT_IN_libc */
+#include "__longjmp.c"
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext-common.S b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
index 4992030239..f35bc5c39a 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext-common.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
@@ -19,9 +19,10 @@
 #include <sysdep.h>
 #include <features.h>
 
-#include "rtld-global-offsets.h"
 #include "ucontext_i.h"
 
+#include <shlib-compat.h>
+
 /*  __getcontext (const ucontext_t *ucp)
 
   Saves the machine context in UCP such that when it is activated,
@@ -37,7 +38,7 @@ ENTRY(__getcontext)
 	/* rt_sigprocmask (SIG_BLOCK, NULL, &sc->sc_mask, sigsetsize).  */
 	la      %r2,SIG_BLOCK
 	slr	%r3,%r3
-	la      %r4,SC_MASK(%r1)
+	la	%r4,SC_MASK(%r1)
 	lhi	%r5,_NSIG8
 	svc	SYS_ify(rt_sigprocmask)
 
@@ -60,42 +61,6 @@ ENTRY(__getcontext)
 	std     %f14,SC_FPRS+112(%r1)
 	std     %f15,SC_FPRS+120(%r1)
 
-	lhi	%r2,0
-#ifndef __V1_UCONTEXT
-	bras	%r3,0f
-# ifdef IS_IN_rtld
-  /* Within ld.so we can do slightly better by addressing dl_hwap
-     relative to GOT start.  */
-1:	.long	_GLOBAL_OFFSET_TABLE_ - 1b
-	.long	C_SYMBOL_NAME(_rtld_global_ro)@GOTOFF
-0:	l	%r4,0(%r3)
-	la	%r4,0(%r3,%r4)
-	l	%r5,4(%r3)
-	/* _dl_hwcap is 64 bit and we need the lower 32.  */
-	l	%r3,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET+4(%r4,%r5)
-# elif PIC
-1:	.long	_GLOBAL_OFFSET_TABLE_ - 1b
-	.long	C_SYMBOL_NAME(_rtld_global_ro)@GOT
-0:	l	%r4,0(%r3)
-	la	%r4,0(%r3,%r4)  /* GOT pointer -> r4 */
-	l	%r5,4(%r3)      /* GOT offset -> r5 */
-	l	%r5,0(%r4,%r5)  /* GOT slot -> r5 */
-	l	%r3,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET+4(%r5)
-# else
-	.long	C_SYMBOL_NAME(_dl_hwcap)
-0:	l	%r3,0(%r3)
-	l	%r3,0(%r3)
-# endif
-	tml	%r3,512 /* HWCAP_S390_HIGH_GPRS */
-	jz	2f
-	/* highgprs implies zarch so stmh/oill is ok here.  */
-	.machine "z900"
-	.machinemode "zarch_nohighgprs"
-	stmh	%r0,%r15,SC_HIGHGPRS(%r1)
-	oill	%r2,1 /* UCONTEXT_UC_FLAGS_HIGH_GPRS */
-#endif
-2:	st	%r2,SC_FLGS(%r1)
-
 	/* Set __getcontext return value to 0.  */
 	slr     %r2,%r2
 
@@ -110,3 +75,12 @@ ENTRY(__getcontext)
 END(__getcontext)
 
 weak_alias (__getcontext, getcontext)
+
+#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
+/* In glibc release 2.19 a new version of getcontext was introduced,
+   but was reverted before 2.20. Thus both versions are the same function.  */
+weak_alias (__getcontext, __v1__getcontext)
+weak_alias (__getcontext, __v2__getcontext)
+versioned_symbol (libc, __v1__getcontext, getcontext, GLIBC_2_1)
+compat_symbol (libc, __v2__getcontext, getcontext, GLIBC_2_19)
+#endif
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
index 03f2e83805..0194f0b086 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
@@ -1777,7 +1777,6 @@ GLIBC_2.18
 GLIBC_2.19
  GLIBC_2.19 A
  __longjmp_chk F
- __setjmp F
  __sigsetjmp F
  _longjmp F
  _setjmp F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
index fbe8b77caf..42839e26f1 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
@@ -62,16 +62,8 @@ ENTRY(__setcontext)
 	/* Don't touch %a0, used for thread purposes.  */
 	lam	%a1,%a15,SC_ACRS+4(%r1)
 
-	/* Restore the upper halfs if available.  */
-	l	%r2,SC_FLGS(%r1)
-	tml	%r2,1   /* UCONTEXT_UC_FLAGS_HIGH_GPRS */
-	jz	0f
-	.machine	"z900"
-	.machinemode	"zarch_nohighgprs"
-	lmh	%r0,%r15,SC_HIGHGPRS(%r1)
-
 	/* Load general purpose registers.  */
-0:	lm	%r0,%r15,SC_GPRS(%r1)
+	lm	%r0,%r15,SC_GPRS(%r1)
 
 	/* Return.  */
 	br	%r14
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
index 41ede4b7b2..9206aa334d 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
@@ -65,31 +65,19 @@ ENTRY(__swapcontext)
 	std     %f14,SC_FPRS+112(%r1)
 	std     %f15,SC_FPRS+120(%r1)
 
-	/* Store access registers.  */
-	stam    %a0,%a15,SC_ACRS(%r1)
-
 	/* Set __swapcontext return value to 0.  */
 	slr     %r2,%r2
 
+	/* Store access registers.  */
+	stam    %a0,%a15,SC_ACRS(%r1)
+
 	/* Store general purpose registers.  */
 	stm     %r0,%r15,SC_GPRS(%r1)
 
-	/* Copy uc_flags into the new ucontext_t.  */
+	/* sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL).  */
+	la      %r2,SIG_BLOCK
 	lr	%r5,%r0
-	l	%r2,SC_FLGS(%r5)
-	st	%r2,SC_FLGS(%r1)
-
-	/* Save/restore the upper halfs if necessary.  */
-	tml	%r2,1   /* UCONTEXT_UC_FLAGS_HIGH_GPRS */
-	jz	0f
-	.machine	"z900"
-	.machinemode	"zarch_nohighgprs"
-	stmh	%r0,%r15,SC_HIGHGPRS(%r1)
-	lmh	%r0,%r15,SC_HIGHGPRS(%r5)
-
-	/* rt_sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL, sigsetsize).  */
-0:	la      %r2,SIG_BLOCK
-	la      %r3,SC_MASK(%r5)
+	la	%r3,SC_MASK(%r5)
 	slr	%r4,%r4
 	lhi	%r5,_NSIG8
 	svc	SYS_ify(rt_sigprocmask)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.sym b/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.sym
deleted file mode 100644
index 705c7ab6cf..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.sym
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <stddef.h>
-#include <signal.h>
-#include <sys/ucontext.h>
-
---
-
-SIG_BLOCK
-SIG_UNBLOCK
-SIG_SETMASK
-
-_NSIG8          (_NSIG / 8)
-
-#define ucontext(member)	offsetof (ucontext_t, member)
-#define mcontext(member)	ucontext (uc_mcontext.member)
-
-SC_FLGS		ucontext (uc_flags)
-SC_LINK		ucontext (uc_link)
-SC_STCK		ucontext (uc_stack.ss_sp)
-SC_STSZ		ucontext (uc_stack.ss_size)
-SC_PSW		mcontext (psw)
-SC_GPRS		mcontext (gregs)
-SC_ACRS		mcontext (aregs)
-SC_FPC		mcontext (fpregs.fpc)
-SC_FPRS		mcontext (fpregs.fprs)
-SC_MASK		ucontext (uc_sigmask)
-SC_HIGHGPRS	ucontext (uc_high_gprs)
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-08-13 20:47:50 +0000