aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/cxxsupp/builtins/i386/chkstk2.S
diff options
context:
space:
mode:
authorAnton Samokhvalov <pg83@yandex.ru>2022-02-10 16:45:15 +0300
committerDaniil Cherednik <dcherednik@yandex-team.ru>2022-02-10 16:45:15 +0300
commit72cb13b4aff9bc9cf22e49251bc8fd143f82538f (patch)
treeda2c34829458c7d4e74bdfbdf85dff449e9e7fb8 /contrib/libs/cxxsupp/builtins/i386/chkstk2.S
parent778e51ba091dc39e7b7fcab2b9cf4dbedfb6f2b5 (diff)
downloadydb-72cb13b4aff9bc9cf22e49251bc8fd143f82538f.tar.gz
Restoring authorship annotation for Anton Samokhvalov <pg83@yandex.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/cxxsupp/builtins/i386/chkstk2.S')
-rw-r--r--contrib/libs/cxxsupp/builtins/i386/chkstk2.S80
1 files changed, 40 insertions, 40 deletions
diff --git a/contrib/libs/cxxsupp/builtins/i386/chkstk2.S b/contrib/libs/cxxsupp/builtins/i386/chkstk2.S
index 7d65bb0889..e4dbf58622 100644
--- a/contrib/libs/cxxsupp/builtins/i386/chkstk2.S
+++ b/contrib/libs/cxxsupp/builtins/i386/chkstk2.S
@@ -1,40 +1,40 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-
-#include "../assembly.h"
-
-#ifdef __i386__
-
-// _chkstk (_alloca) routine - probe stack between %esp and (%esp-%eax) in 4k increments,
-// then decrement %esp by %eax. Preserves all registers except %esp and flags.
-// This routine is windows specific
-// http://msdn.microsoft.com/en-us/library/ms648426.aspx
-
-.text
-.balign 4
-DEFINE_COMPILERRT_FUNCTION(_alloca) // _chkstk and _alloca are the same function
-DEFINE_COMPILERRT_FUNCTION(__chkstk)
- push %ecx
- cmp $0x1000,%eax
- lea 8(%esp),%ecx // esp before calling this routine -> ecx
- jb 1f
-2:
- sub $0x1000,%ecx
- test %ecx,(%ecx)
- sub $0x1000,%eax
- cmp $0x1000,%eax
- ja 2b
-1:
- sub %eax,%ecx
- test %ecx,(%ecx)
-
- lea 4(%esp),%eax // load pointer to the return address into eax
- mov %ecx,%esp // install the new top of stack pointer into esp
- mov -4(%eax),%ecx // restore ecx
- push (%eax) // push return address onto the stack
- sub %esp,%eax // restore the original value in eax
- ret
-END_COMPILERRT_FUNCTION(__chkstk)
-END_COMPILERRT_FUNCTION(_alloca)
-
-#endif // __i386__
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+
+#include "../assembly.h"
+
+#ifdef __i386__
+
+// _chkstk (_alloca) routine - probe stack between %esp and (%esp-%eax) in 4k increments,
+// then decrement %esp by %eax. Preserves all registers except %esp and flags.
+// This routine is windows specific
+// http://msdn.microsoft.com/en-us/library/ms648426.aspx
+
+.text
+.balign 4
+DEFINE_COMPILERRT_FUNCTION(_alloca) // _chkstk and _alloca are the same function
+DEFINE_COMPILERRT_FUNCTION(__chkstk)
+ push %ecx
+ cmp $0x1000,%eax
+ lea 8(%esp),%ecx // esp before calling this routine -> ecx
+ jb 1f
+2:
+ sub $0x1000,%ecx
+ test %ecx,(%ecx)
+ sub $0x1000,%eax
+ cmp $0x1000,%eax
+ ja 2b
+1:
+ sub %eax,%ecx
+ test %ecx,(%ecx)
+
+ lea 4(%esp),%eax // load pointer to the return address into eax
+ mov %ecx,%esp // install the new top of stack pointer into esp
+ mov -4(%eax),%ecx // restore ecx
+ push (%eax) // push return address onto the stack
+ sub %esp,%eax // restore the original value in eax
+ ret
+END_COMPILERRT_FUNCTION(__chkstk)
+END_COMPILERRT_FUNCTION(_alloca)
+
+#endif // __i386__