[klibc] [klibc:master] i386: Use -Ttext-segment to avoid address collision

klibc-bot for Ben Hutchings ben at decadent.org.uk
Fri Jan 18 08:42:15 PST 2019

Commit-ID:  34163a2c7d1c3b841a35b242dbdbda25c4fb1ecb
Gitweb:     http://git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=34163a2c7d1c3b841a35b242dbdbda25c4fb1ecb
Author:     Ben Hutchings <ben at decadent.org.uk>
AuthorDate: Sun, 6 Jan 2019 03:19:51 +0000
Committer:  Ben Hutchings <ben at decadent.org.uk>
CommitDate: Fri, 18 Jan 2019 03:10:14 +0000

[klibc] i386: Use -Ttext-segment to avoid address collision

Building klibc for i386 with binutils 2.31 adds an extra
.note.gnu.property section to klibc.so, the address of which is not
affected by the -Ttext option.  Loading a klibc executable then
fails with the following kernel log message:

9409 (sh.shared): Uhuuh, elf segment at 0000000000600000 requested but the memory is mapped already

I don't exactly see why this is happening, but it is triggered by the
new section and the collision can be avoided by passing -Ttext-segment
instead of -Ttext, similarly to x86_64.

Link: https://www.zytor.com/pipermail/klibc/2019-January/004027.html
Signed-off-by: Ben Hutchings <ben at decadent.org.uk>

 usr/klibc/arch/i386/MCONFIG | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr/klibc/arch/i386/MCONFIG b/usr/klibc/arch/i386/MCONFIG
index 1150ece..bfec004 100644
--- a/usr/klibc/arch/i386/MCONFIG
+++ b/usr/klibc/arch/i386/MCONFIG
@@ -30,7 +30,7 @@ KLIBCBITSIZE  = 32
 # This address needs to be reachable using normal inter-module
 # calls, and work on the memory models for this architecture
 # 96 MB - normal binaries start at 128 MB
-KLIBCSHAREDFLAGS	= -Ttext 0x06000200
+KLIBCSHAREDFLAGS	= -Ttext-segment 0x06000000
 # Asm includes for i386 are in the merged x86 tree

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