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| author | Carlos Montiers <carlos@thefunsouth.com> | 2014-07-10 00:37:20 -0400 |
|---|---|---|
| committer | Carlos Montiers <carlos@thefunsouth.com> | 2014-07-10 00:37:20 -0400 |
| commit | 8257829623d484229c9785deedd05375c5732493 (patch) | |
| tree | fbcfb5fa0e2ad1cb9e030dde4eda93eb8583ddbd /lib | |
| parent | 89000c18dc7d5ccb2687948f94fe49d392990dab (diff) | |
| download | tinycc-8257829623d484229c9785deedd05375c5732493.tar.gz tinycc-8257829623d484229c9785deedd05375c5732493.tar.bz2 | |
Fix problem using alloca function, executable crashed even with a exception handler function, when try to allocate INT_MAX. Patch provided by Jason Hood in private e-mail, when I ask to him for help. He say: Feel free to pass it on to the mailing list.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/alloca86-bt.S | 4 | ||||
| -rw-r--r-- | lib/alloca86.S | 4 | ||||
| -rw-r--r-- | lib/alloca86_64.S | 4 |
3 files changed, 6 insertions, 6 deletions
diff --git a/lib/alloca86-bt.S b/lib/alloca86-bt.S index ffad515..ff07bbb 100644 --- a/lib/alloca86-bt.S +++ b/lib/alloca86-bt.S @@ -14,10 +14,10 @@ __bound_alloca: #ifdef TCC_TARGET_PE p4: cmp $4096,%eax - jle p5 + jb p5 + test %eax,-4096(%esp) sub $4096,%esp sub $4096,%eax - test %eax,(%esp) jmp p4 p5: diff --git a/lib/alloca86.S b/lib/alloca86.S index b836efb..5bb38b1 100644 --- a/lib/alloca86.S +++ b/lib/alloca86.S @@ -13,10 +13,10 @@ alloca: #ifdef TCC_TARGET_PE p1: cmp $4096,%eax - jle p2 + jb p2 + test %eax,-4096(%esp) sub $4096,%esp sub $4096,%eax - test %eax,(%esp) jmp p1 p2: #endif diff --git a/lib/alloca86_64.S b/lib/alloca86_64.S index dd46ce6..51acd42 100644 --- a/lib/alloca86_64.S +++ b/lib/alloca86_64.S @@ -17,10 +17,10 @@ alloca: #ifdef TCC_TARGET_PE p1: cmp $4096,%rax - jle p2 + jb p2 + test %rax,-4096(%rsp) sub $4096,%rsp sub $4096,%rax - test %rax,(%rsp) jmp p1 p2: #endif |