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Fixes for CYGWIN

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@348 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2007-09-21 00:28:48 +00:00
parent a0318797d7
commit b1bc346305
1 changed files with 47 additions and 34 deletions
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81
arch/sim/src/up_setjmp.S
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@ -46,6 +46,12 @@
/**************************************************************************
* Private Definitions
**************************************************************************/
#ifdef __CYGWIN__
# define SYMBOL(s) _##s
#else
# define SYMBOL(s) s
#endif
/**************************************************************************
* Private Types
@ -72,58 +78,65 @@
**************************************************************************/
.text
.globl up_setjmp
.type up_setjmp, @function
up_setjmp:
.globl SYMBOL(up_setjmp)
#ifndef __CYGWIN__
.type SYMBOL(up_setjmp), @function
#endif
SYMBOL(up_setjmp):
/* %ebx, %esi, %edi, and %ebp must be preserved.
* save %ebx, $esi, and %edi now... */
movl 4(%esp), %eax
movl %ebx, (JB_EBX)(%eax)
movl %esi, (JB_ESI)(%eax)
movl %edi, (JB_EDI)(%eax)
movl 4(%esp), %eax
movl %ebx, (JB_EBX)(%eax)
movl %esi, (JB_ESI)(%eax)
movl %edi, (JB_EDI)(%eax)
/* Save the value of SP as will be after we return */
/* Save the value of SP as will be after we return */
leal 4(%esp), %ecx
movl %ecx, (JB_SP)(%eax)
leal 4(%esp), %ecx
movl %ecx, (JB_SP)(%eax)
/* Save the return PC */
/* Save the return PC */
movl 0(%esp), %ecx
movl %ecx, (JB_PC)(%eax)
movl 0(%esp), %ecx
movl %ecx, (JB_PC)(%eax)
/* Save the framepointer */
/* Save the framepointer */
movl %ebp, (JB_EBP)(%eax)
movl %ebp, (JB_EBP)(%eax)
/* And return 0 */
xorl %eax, %eax
ret
.size up_setjmp, . - up_setjmp
ret
#ifndef __CYGWIN__
.size SYMBOL(up_setjmp), . - SYMBOL(up_setjmp)
#endif
.globl SYMBOL(up_longjmp)
#ifndef __CYGWIN__
.type SYMBOL(up_longjmp), @function
#endif
SYMBOL(up_longjmp):
movl 4(%esp), %ecx /* U_pthread_jmpbuf in %ecx. */
movl 8(%esp), %eax /* Second argument is return value. */
.globl up_longjmp
.type up_longjmp, @function
up_longjmp:
movl 4(%esp), %ecx /* U_pthread_jmpbuf in %ecx. */
movl 8(%esp), %eax /* Second argument is return value. */
/* Save the return address now. */
/* Save the return address now. */
movl (JB_PC)(%ecx), %edx
movl (JB_PC)(%ecx), %edx
/* Restore registers. */
/* Restore registers. */
movl (JB_EBX)(%ecx), %ebx
movl (JB_ESI)(%ecx), %esi
movl (JB_EDI)(%ecx), %edi
movl (JB_EBP)(%ecx), %ebp
movl (JB_SP)(%ecx), %esp
movl (JB_EBX)(%ecx), %ebx
movl (JB_ESI)(%ecx), %esi
movl (JB_EDI)(%ecx), %edi
movl (JB_EBP)(%ecx), %ebp
movl (JB_SP)(%ecx), %esp
/* Jump to saved PC. */
/* Jump to saved PC. */
jmp *%edx
.size up_longjmp, . - up_longjmp
jmp *%edx
#ifndef __CYGWIN__
.size SYMBOL(up_longjmp), . - SYMBOL(up_longjmp)
#endif