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Reinstantiate stack_t cleanup (#1468904)

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This commit is contained in:
Florian Weimer 2017-07-11 14:52:35 +02:00
parent 4597e723d0
commit d538c7cc53
2 changed files with 4 additions and 260 deletions
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256
glibc-rh1468904.patch
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@ -1,256 +0,0 @@
commit 240a02bd2bb367d18a4c1672adda5f8c847a9a4d
Author: Florian Weimer <fweimer@redhat.com>
Date: Sun Jul 9 12:25:35 2017 +0200
Revert "Fix struct sigaltstack namespace (bug 21517)."
This reverts commit 7553131847151d04d58a02300673f13d73861cbb.
diff --git a/bits/types/stack_t.h b/bits/types/stack_t.h
index 47149fc..3cf0a40 100644
--- a/bits/types/stack_t.h
+++ b/bits/types/stack_t.h
@@ -23,7 +23,7 @@
#include <stddef.h>
/* Structure describing a signal stack. */
-typedef struct
+typedef struct sigaltstack
{
void *ss_sp;
size_t ss_size;
diff --git a/debug/segfault.c b/debug/segfault.c
index 78c1cf5..dac9efb 100644
--- a/debug/segfault.c
+++ b/debug/segfault.c
@@ -156,7 +156,7 @@ install_handler (void)
if (getenv ("SEGFAULT_USE_ALTSTACK") != 0)
{
void *stack_mem = malloc (2 * SIGSTKSZ);
- stack_t ss;
+ struct sigaltstack ss;
if (stack_mem != NULL)
{
diff --git a/hurd/hurd/signal.h b/hurd/hurd/signal.h
index e03d53e..f899e81 100644
--- a/hurd/hurd/signal.h
+++ b/hurd/hurd/signal.h
@@ -70,7 +70,7 @@ struct hurd_sigstate
sigset_t blocked; /* What signals are blocked. */
sigset_t pending; /* Pending signals, possibly blocked. */
struct sigaction actions[NSIG];
- stack_t sigaltstack;
+ struct sigaltstack sigaltstack;
/* Chain of thread-local signal preemptors; see <hurd/sigpreempt.h>.
Each element of this chain is in local stack storage, and the chain
diff --git a/hurd/trampoline.c b/hurd/trampoline.c
index e506fd8..8216e22 100644
--- a/hurd/trampoline.c
+++ b/hurd/trampoline.c
@@ -28,7 +28,7 @@
struct sigcontext *
_hurd_setup_sighandler (int flags,
__sighandler_t handler,
- stack_t *sigaltstack,
+ struct sigaltstack *sigaltstack,
int signo, int sigcode,
void *state)
{
diff --git a/include/signal.h b/include/signal.h
index bcf1455..e39ddc6 100644
--- a/include/signal.h
+++ b/include/signal.h
@@ -41,8 +41,8 @@ extern int __sigqueue (__pid_t __pid, int __sig,
#ifdef __USE_MISC
extern int __sigreturn (struct sigcontext *__scp);
#endif
-extern int __sigaltstack (const stack_t *__ss,
- stack_t *__oss);
+extern int __sigaltstack (const struct sigaltstack *__ss,
+ struct sigaltstack *__oss);
extern int __libc_sigaction (int sig, const struct sigaction *act,
struct sigaction *oact);
libc_hidden_proto (__libc_sigaction)
diff --git a/signal/sigaltstack.c b/signal/sigaltstack.c
index b70afa7..e4d2319 100644
--- a/signal/sigaltstack.c
+++ b/signal/sigaltstack.c
@@ -21,7 +21,7 @@
/* Run signals handlers on the stack specified by SS (if not NULL).
If OSS is not NULL, it is filled in with the old signal stack status. */
int
-sigaltstack (const stack_t *ss, stack_t *oss)
+sigaltstack (const struct sigaltstack *ss, struct sigaltstack *oss)
{
__set_errno (ENOSYS);
return -1;
diff --git a/sysdeps/mach/hurd/i386/signal-defines.sym b/sysdeps/mach/hurd/i386/signal-defines.sym
index e42bbbe..9521bd7 100644
--- a/sysdeps/mach/hurd/i386/signal-defines.sym
+++ b/sysdeps/mach/hurd/i386/signal-defines.sym
@@ -5,6 +5,6 @@
HURD_SIGSTATE__SIGALTSTACK__OFFSET offsetof(struct hurd_sigstate, sigaltstack)
-SIGALTSTACK__SS_SP__OFFSET offsetof(stack_t, ss_sp)
-SIGALTSTACK__SS_SIZE__OFFSET offsetof(stack_t, ss_size)
-SIGALTSTACK__SS_FLAGS__OFFSET offsetof(stack_t, ss_flags)
+SIGALTSTACK__SS_SP__OFFSET offsetof(struct sigaltstack, ss_sp)
+SIGALTSTACK__SS_SIZE__OFFSET offsetof(struct sigaltstack, ss_size)
+SIGALTSTACK__SS_FLAGS__OFFSET offsetof(struct sigaltstack, ss_flags)
diff --git a/sysdeps/mach/hurd/sigaltstack.c b/sysdeps/mach/hurd/sigaltstack.c
index 4fba69e..06a6a5c 100644
--- a/sysdeps/mach/hurd/sigaltstack.c
+++ b/sysdeps/mach/hurd/sigaltstack.c
@@ -22,16 +22,16 @@
/* Run signals handlers on the stack specified by SS (if not NULL).
If OSS is not NULL, it is filled in with the old signal stack status. */
int
-__sigaltstack (const stack_t *argss, stack_t *oss)
+__sigaltstack (const struct sigaltstack *argss, struct sigaltstack *oss)
{
struct hurd_sigstate *s;
- stack_t ss, old;
+ struct sigaltstack ss, old;
/* Fault before taking any locks. */
if (argss != NULL)
ss = *argss;
if (oss != NULL)
- *(volatile stack_t *) oss = *oss;
+ *(volatile struct sigaltstack *) oss = *oss;
s = _hurd_self_sigstate ();
__spin_lock (&s->lock);
diff --git a/sysdeps/mach/hurd/sigstack.c b/sysdeps/mach/hurd/sigstack.c
index 484efb6..a3a11f9 100644
--- a/sysdeps/mach/hurd/sigstack.c
+++ b/sysdeps/mach/hurd/sigstack.c
@@ -24,7 +24,7 @@
int
sigstack (struct sigstack *ss, struct sigstack *oss)
{
- stack_t as, oas;
+ struct sigaltstack as, oas;
as.ss_sp = ss->ss_sp;
as.ss_size = 0;
diff --git a/sysdeps/unix/sysv/linux/alpha/sys/procfs.h b/sysdeps/unix/sysv/linux/alpha/sys/procfs.h
index abc9fd8..2cd69d4 100644
--- a/sysdeps/unix/sysv/linux/alpha/sys/procfs.h
+++ b/sysdeps/unix/sysv/linux/alpha/sys/procfs.h
@@ -71,7 +71,7 @@ struct elf_prstatus
unsigned long int pr_sigpend; /* Set of pending signals. */
unsigned long int pr_sighold; /* Set of held signals. */
#if 0
- stack_t pr_altstack; /* Alternate stack info. */
+ struct sigaltstack pr_altstack; /* Alternate stack info. */
struct sigaction pr_action; /* Signal action for current sig. */
#endif
__pid_t pr_pid;
diff --git a/sysdeps/unix/sysv/linux/bits/types/stack_t.h b/sysdeps/unix/sysv/linux/bits/types/stack_t.h
index 373c227..497e42b 100644
--- a/sysdeps/unix/sysv/linux/bits/types/stack_t.h
+++ b/sysdeps/unix/sysv/linux/bits/types/stack_t.h
@@ -23,7 +23,7 @@
#include <stddef.h>
/* Structure describing a signal stack. */
-typedef struct
+typedef struct sigaltstack
{
void *ss_sp;
int ss_flags;
diff --git a/sysdeps/unix/sysv/linux/hppa/____longjmp_chk.c b/sysdeps/unix/sysv/linux/hppa/____longjmp_chk.c
index 48aaeb3..3a04250 100644
--- a/sysdeps/unix/sysv/linux/hppa/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/hppa/____longjmp_chk.c
@@ -27,7 +27,7 @@
destroyed must all have stack values higher than ours. */ \
if ((unsigned long) (sp) > this_sp) \
{ \
- stack_t oss; \
+ struct sigaltstack oss; \
INTERNAL_SYSCALL_DECL (err); \
int result = INTERNAL_SYSCALL (sigaltstack, err, 2, NULL, &oss);\
/* If we aren't using an alternate stack then we have already \
diff --git a/sysdeps/unix/sysv/linux/ia64/sys/procfs.h b/sysdeps/unix/sysv/linux/ia64/sys/procfs.h
index afe54fb..93e569b 100644
--- a/sysdeps/unix/sysv/linux/ia64/sys/procfs.h
+++ b/sysdeps/unix/sysv/linux/ia64/sys/procfs.h
@@ -73,7 +73,7 @@ struct elf_prstatus
unsigned long int pr_sigpend; /* Set of pending signals. */
unsigned long int pr_sighold; /* Set of held signals. */
#if 0
- stack_t pr_altstack; /* Alternate stack info. */
+ struct sigaltstack pr_altstack; /* Alternate stack info. */
struct sigaction pr_action; /* Signal action for current sig. */
#endif
__pid_t pr_pid;
diff --git a/sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c b/sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c
index 030e463..3539b54 100644
--- a/sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c
@@ -24,7 +24,7 @@
register unsigned long this_sp asm ("sp"); \
if ((unsigned long) (sp) < this_sp) \
{ \
- stack_t oss; \
+ struct sigaltstack oss; \
INTERNAL_SYSCALL_DECL (err); \
int result = INTERNAL_SYSCALL (sigaltstack, err, 2, NULL, &oss); \
if (!INTERNAL_SYSCALL_ERROR_P (result, err) \
diff --git a/sysdeps/unix/sysv/linux/mips/bits/types/stack_t.h b/sysdeps/unix/sysv/linux/mips/bits/types/stack_t.h
index b9635ad..ef06072 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/types/stack_t.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/types/stack_t.h
@@ -23,7 +23,7 @@
#include <stddef.h>
/* Structure describing a signal stack. */
-typedef struct
+typedef struct sigaltstack
{
void *ss_sp;
size_t ss_size;
diff --git a/sysdeps/unix/sysv/linux/powerpc/sys/procfs.h b/sysdeps/unix/sysv/linux/powerpc/sys/procfs.h
index 61ded22..b7b7b0b 100644
--- a/sysdeps/unix/sysv/linux/powerpc/sys/procfs.h
+++ b/sysdeps/unix/sysv/linux/powerpc/sys/procfs.h
@@ -83,7 +83,7 @@ struct elf_prstatus
unsigned long int pr_sigpend; /* Set of pending signals. */
unsigned long int pr_sighold; /* Set of held signals. */
#if 0
- stack_t pr_altstack; /* Alternate stack info. */
+ struct sigaltstack pr_altstack; /* Alternate stack info. */
struct sigaction pr_action; /* Signal action for current sig. */
#endif
__pid_t pr_pid;
diff --git a/sysdeps/unix/sysv/linux/sh/sys/procfs.h b/sysdeps/unix/sysv/linux/sh/sys/procfs.h
index 414911a..c41c877 100644
--- a/sysdeps/unix/sysv/linux/sh/sys/procfs.h
+++ b/sysdeps/unix/sysv/linux/sh/sys/procfs.h
@@ -55,7 +55,7 @@ struct elf_prstatus
unsigned long int pr_sigpend; /* Set of pending signals. */
unsigned long int pr_sighold; /* Set of held signals. */
#if 0
- stack_t pr_altstack; /* Alternate stack info. */
+ struct sigaltstack pr_altstack; /* Alternate stack info. */
struct sigaction pr_action; /* Signal action for current sig. */
#endif
__pid_t pr_pid;
diff --git a/sysdeps/unix/sysv/linux/sys/procfs.h b/sysdeps/unix/sysv/linux/sys/procfs.h
index b3b2cf3..8dfa0c0 100644
--- a/sysdeps/unix/sysv/linux/sys/procfs.h
+++ b/sysdeps/unix/sysv/linux/sys/procfs.h
@@ -58,7 +58,7 @@ struct elf_prstatus
unsigned long int pr_sigpend; /* Set of pending signals. */
unsigned long int pr_sighold; /* Set of held signals. */
#if 0
- stack_t pr_altstack; /* Alternate stack info. */
+ struct sigaltstack pr_altstack; /* Alternate stack info. */
struct sigaction pr_action; /* Signal action for current sig. */
#endif
__pid_t pr_pid;

8
glibc.spec
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@ -1,6 +1,6 @@
%define glibcsrcdir glibc-2.25-685-g031e519
%define glibcversion 2.25.90
%define glibcrelease 21%{?dist}
%define glibcrelease 22%{?dist}
# Pre-release tarballs are pulled in from git using a command that is
# effectively:
#
@ -290,8 +290,6 @@ Patch2037: glibc-rh1315108.patch
# sln implemented by ldconfig, to conserve disk space.
Patch2112: glibc-rh1315476-2.patch
Patch2113: glibc-rh1468904.patch
##############################################################################
# End of glibc patches.
##############################################################################
@ -851,7 +849,6 @@ microbenchmark tests on the system.
%patch0060 -p1
%patch2037 -p1
%patch2112 -p1
%patch2113 -p1
%patch0061 -p1
##############################################################################
@ -2267,6 +2264,9 @@ rm -f *.filelist*
%endif
%changelog
* Tue Jul 11 2017 Florian Weimer <fweimer@redhat.com> - 2.25.90-22
- Reinstantiate stack_t cleanup (#1468904)
* Sun Jul 9 2017 Florian Weimer <fweimer@redhat.com> - 2.25.90-21
- Back out stack_t cleanup (#1468904)