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Calling the libc .cerror from outside libc doesn't work when libc

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is a shared library.  Use a copy of .cerror to avoid this problem.

PR:		24845
This commit is contained in:
Tor Egge 2001-02-26 14:15:28 +00:00
parent 3c409910e0
commit 5f887dac56
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=38796
1 changed files with 15 additions and 2 deletions
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17
devel/linuxthreads/files/clone.S
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@ -32,6 +32,7 @@ ENTRY(_clone)
pushl %ebp
movl %esp, %ebp
pushl %esi
PIC_PROLOGUE
/*
* Push thread info onto the new thread's stack
@ -51,7 +52,7 @@ ENTRY(_clone)
* Prepare and execute rfork
*/
pushl 16(%ebp)
pushl %esi
pushl $0 /* fake return address */
leal SYS_rfork, %eax
KERNCALL
@ -64,6 +65,7 @@ ENTRY(_clone)
cmpl $0, %edx
jnz 1f
addl $8, %esp
PIC_EPILOGUE
popl %esi
movl %ebp, %esp
popl %ebp
@ -101,10 +103,21 @@ ENTRY(_clone)
.stabd 68,0,5
2: addl $8, %esp
PIC_EPILOGUE
popl %esi
movl %ebp, %esp
popl %ebp
jmp PIC_PLT(HIDENAME(cerror))
PIC_PROLOGUE
/* Copy of libc .cerror since libc .cerror must be called from libc */
pushl %eax
/* The caller must execute the PIC prologue before jumping to cerror. */
call PIC_PLT(CNAME(__error))
popl %ecx
PIC_EPILOGUE
movl %ecx,(%eax)
movl $-1,%eax
movl $-1,%edx
ret
.stabs "_clone:f67",36,0,6,CNAME(_clone)
Lfe1: