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authorRich Felker <dalias@aerifal.cx>2018-09-11 15:26:51 -0400
committerRich Felker <dalias@aerifal.cx>2018-09-12 14:34:37 -0400
commitced75472d7e3d73d5b057e36ccbc7b7fcba95104 (patch)
tree24365904fae978a92f48fcb93977eedb900aa419 /src
parent6d47488e8616dfc24e58aeb56db520ac7c80421e (diff)
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remove __vfork alias
this was added so that posix_spawn and possibly other functionality could be implemented in terms of vfork, but that turned out to be unsafe. any such usage needs __clone with proper handling of stack lifetime.
Diffstat (limited to 'src')
-rw-r--r--src/process/arm/vfork.s5
-rw-r--r--src/process/i386/vfork.s5
-rw-r--r--src/process/s390x/vfork.s5
-rw-r--r--src/process/sh/vfork.s5
-rw-r--r--src/process/vfork.c5
-rw-r--r--src/process/x32/vfork.s5
-rw-r--r--src/process/x86_64/vfork.s5
7 files changed, 7 insertions, 28 deletions
diff --git a/src/process/arm/vfork.s b/src/process/arm/vfork.s
index ed1f87a6..d7ec41b3 100644
--- a/src/process/arm/vfork.s
+++ b/src/process/arm/vfork.s
@@ -1,9 +1,6 @@
.syntax unified
-.global __vfork
-.weak vfork
-.type __vfork,%function
+.global vfork
.type vfork,%function
-__vfork:
vfork:
mov ip, r7
mov r7, 190
diff --git a/src/process/i386/vfork.s b/src/process/i386/vfork.s
index a3d76ae6..3d0e6d6b 100644
--- a/src/process/i386/vfork.s
+++ b/src/process/i386/vfork.s
@@ -1,8 +1,5 @@
-.global __vfork
-.weak vfork
-.type __vfork,@function
+.global vfork
.type vfork,@function
-__vfork:
vfork:
pop %edx
mov $190,%eax
diff --git a/src/process/s390x/vfork.s b/src/process/s390x/vfork.s
index 2fb4022a..744f9d78 100644
--- a/src/process/s390x/vfork.s
+++ b/src/process/s390x/vfork.s
@@ -1,8 +1,5 @@
- .global __vfork
- .weak vfork
- .type __vfork,%function
+ .global vfork
.type vfork,%function
-__vfork:
vfork:
svc 190
.hidden __syscall_ret
diff --git a/src/process/sh/vfork.s b/src/process/sh/vfork.s
index 48cc9396..91dbde7b 100644
--- a/src/process/sh/vfork.s
+++ b/src/process/sh/vfork.s
@@ -1,8 +1,5 @@
-.global __vfork
-.weak vfork
-.type __vfork,@function
+.global vfork
.type vfork,@function
-__vfork:
vfork:
mov #95, r3
add r3, r3
diff --git a/src/process/vfork.c b/src/process/vfork.c
index ac954651..d430c13f 100644
--- a/src/process/vfork.c
+++ b/src/process/vfork.c
@@ -2,9 +2,8 @@
#include <unistd.h>
#include <signal.h>
#include "syscall.h"
-#include "libc.h"
-pid_t __vfork(void)
+pid_t vfork(void)
{
/* vfork syscall cannot be made from C code */
#ifdef SYS_fork
@@ -13,5 +12,3 @@ pid_t __vfork(void)
return syscall(SYS_clone, SIGCHLD, 0);
#endif
}
-
-weak_alias(__vfork, vfork);
diff --git a/src/process/x32/vfork.s b/src/process/x32/vfork.s
index 8df00582..0f0ca3ee 100644
--- a/src/process/x32/vfork.s
+++ b/src/process/x32/vfork.s
@@ -1,8 +1,5 @@
-.global __vfork
-.weak vfork
-.type __vfork,@function
+.global vfork
.type vfork,@function
-__vfork:
vfork:
pop %rdx
mov $0x4000003a,%eax /* SYS_vfork */
diff --git a/src/process/x86_64/vfork.s b/src/process/x86_64/vfork.s
index 2cad8052..91144390 100644
--- a/src/process/x86_64/vfork.s
+++ b/src/process/x86_64/vfork.s
@@ -1,8 +1,5 @@
-.global __vfork
-.weak vfork
-.type __vfork,@function
+.global vfork
.type vfork,@function
-__vfork:
vfork:
pop %rdx
mov $58,%eax