Changeset 29a9f62 in mainline for libc/arch/ia32

Timestamp:

2006-03-23T10:33:55Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

77bd004

Parents:

1cef26f

Message:

Added symbolic links 'libarch','libadt','libipc' into libc/include,
so that it can be easily used from anywhere.
Renamed thread_main to thread_main.
Allowed MIPS to compile with -O0.
Added non-preemptible threads support (not yet secured by futexes).
Added simple way to hold Thread Local Storage. Support for compiler
will be added later.
This update breaks IA64 uspace.

There is some forgotten spinlock_lock() in futexes, amd64 gets locked
in the secod uspace thread probably with preemption disabled.

Location:

libc/arch/ia32

Files:

• Makefile.inc (modified) (1 diff)
• include/atomic.h (moved) (moved from libc/arch/ia32/include/atomic_arch.h )
• src/entry.s (modified) (1 diff)
• src/thread_entry.s (modified) (2 diffs)

libc/arch/ia32/Makefile.inc

@@ -33 +33 @@
 TOOLCHAIN_DIR = /usr/local/i686/bin
 
-ARCH_SOURCES += arch/$(ARCH)/src/syscall.c
+ARCH_SOURCES += arch/$(ARCH)/src/syscall.c \
+                arch/$(ARCH)/src/psthread.S
 
 LFLAGS += -N

libc/arch/ia32/src/entry.s

@@ -41 +41 @@
         mov %ax, %es
         mov %ax, %fs
-        mov %ax, %gs
+        # Do not set %gs, it contains descriptor that can see TLS
         
+        call __main     
         call main
         call __exit

libc/arch/ia32/src/thread_entry.s

@@ -39 +39 @@
         mov %dx, %es
         mov %dx, %fs
-        mov %dx, %gs
+        # Do not set %gs, it contains descriptor that can see TLS
 
         #
@@ -45 +45 @@
         #
         pushl %eax
-        call thread_main
-        addl $4, %esp
+        call __thread_main
         
         #