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authorH.J. Lu <hjl.tools@gmail.com>2017-10-03 17:54:13 -0700
committerH.J. Lu <hjl.tools@gmail.com>2017-10-03 17:54:30 -0700
commit955774751b71c4bc94029dd541ad9d34634ec995 (patch)
tree544c51fca2148ba93bf876fc0e714194a137dd89 /sysdeps/i386
parent02d2d8927d2fd3815a9f3c5c767aa71a8a33408e (diff)
downloadglibc-955774751b71c4bc94029dd541ad9d34634ec995.tar.gz
i386: Use "movl main@GOT(%ebx), %eax" in start.S
Don't use "leal main@GOTOFF(%ebx), %eax" since main may be in a shared object. Linker will convert "movl main@GOT(%ebx), %eax" to "leal main@GOTOFF(%ebx), %eax" if main is defined locally. * sysdeps/i386/start.S: Replace "leal main@GOT(%ebx), %eax" with "movl main@GOTOFF(%ebx), %eax".
Diffstat (limited to 'sysdeps/i386')
-rw-r--r--sysdeps/i386/start.S7
1 files changed, 5 insertions, 2 deletions
diff --git a/sysdeps/i386/start.S b/sysdeps/i386/start.S
index 375a93c15a..916fcd2f9a 100644
--- a/sysdeps/i386/start.S
+++ b/sysdeps/i386/start.S
@@ -99,8 +99,11 @@ _start:
pushl main@GOT(%ebx)
# else
/* Avoid relocation in static PIE since _start is called before
- it is relocated. */
- leal main@GOTOFF(%ebx), %eax
+ it is relocated. Don't use "leal main@GOTOFF(%ebx), %eax"
+ since main may be in a shared object. Linker will convert
+ "movl main@GOT(%ebx), %eax" to "leal main@GOTOFF(%ebx), %eax"
+ if main is defined locally. */
+ movl main@GOT(%ebx), %eax
pushl %eax
# endif