Changeset 197ef43 in mainline for uspace/lib/c/arch

Timestamp:

2011-01-29T23:52:07Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

12573db, 40fb017

Parents:

6aef742 (diff), 47b7006 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

merge various cosmetic run-time support improvements

• coding style cleanups, comments cleanups, unsigned types for bit flags, indentation, etc.
• SYS_TASK_EXIT for proper termination of a task (optionally with udebug notification)
  • get rid of exit(), _exit(), core()
  • reimplement robust main(), exit() and abort()
  • call abort() if some part of libc initialization fails
• add more private libc headers to reduce the namespace pollution

Location:

uspace/lib/c/arch

Files:

• abs32le/src/entry.c (modified) (1 diff)
• abs32le/src/thread_entry.c (modified) (1 diff)
• amd64/src/entry.s (modified) (1 diff)
• arm32/src/entry.s (modified) (3 diffs)
• ia32/src/entry.s (modified) (2 diffs)
• ia64/src/entry.s (modified) (1 diff)
• mips32/src/entry.s (modified) (1 diff)
• ppc32/src/entry.s (modified) (1 diff)
• sparc64/src/entry.s (modified) (2 diffs)

uspace/lib/c/arch/abs32le/src/entry.c

@@ -37 +37 @@
 {
         __main(NULL);
-        __exit();
 }
 

uspace/lib/c/arch/abs32le/src/thread_entry.c

@@ -31 +31 @@
 
 #include <unistd.h>
-#include <thread.h>
+#include "../../../generic/private/thread.h"
 
 void __thread_entry(void)

uspace/lib/c/arch/amd64/src/entry.s

@@ -47 +47 @@
         # Pass PCB pointer to __main (no operation)
         call __main
-
-        call __exit

uspace/lib/c/arch/arm32/src/entry.s

@@ -42 +42 @@
         ldr r0, =ras_page
         str r2, [r0]
-
+        
         #
         # Create the first stack frame.
@@ -50 +50 @@
         push {fp, ip, lr, pc}
         sub fp, ip, #4
-
+        
         # Pass pcb_ptr to __main as the first argument (in r0)
         mov r0, r1
         bl __main
-
-        bl __exit
 
 .data
@@ -62 +60 @@
 ras_page:
         .long 0
-

uspace/lib/c/arch/ia32/src/entry.s

@@ -46 +46 @@
         mov %ax, %fs
         # Do not set %gs, it contains descriptor that can see TLS
-
+        
         # Detect the mechanism used for making syscalls
         movl $(INTEL_CPUID_STANDARD), %eax
@@ -58 +58 @@
         # Create the first stack frame.
         #
-        pushl $0 
+        pushl $0
         movl %esp, %ebp
-
+        
         # Pass the PCB pointer to __main as the first argument
         pushl %edi
         call __main
-
-        call __exit

uspace/lib/c/arch/ia64/src/entry.s

@@ -40 +40 @@
         alloc loc0 = ar.pfs, 0, 1, 2, 0
         movl gp = _gp
-
+        
         # Pass PCB pointer as the first argument to __main
         mov out0 = r2
         br.call.sptk.many b0 = __main
-0:
-        br.call.sptk.many b0 = __exit

uspace/lib/c/arch/mips32/src/entry.s

@@ -56 +56 @@
         jal __main
         nop
-        
-        jal __exit
-        nop
 .end
 

uspace/lib/c/arch/ppc32/src/entry.s

@@ -44 +44 @@
         stw %r3, 0(%r1)
         stwu %r1, -16(%r1)
-
+        
         # Pass the PCB pointer to __main() as the first argument.
         # The first argument is passed in r3.
         mr %r3, %r6
         bl __main
-
-        bl __exit

uspace/lib/c/arch/sparc64/src/entry.s

@@ -45 +45 @@
         flushw
         add %g0, -0x7ff, %fp
-
+        
         # Pass pcb_ptr as the first argument to __main()
         mov %i1, %o0
@@ -51 +51 @@
         call __main
         or %l7, %lo(_gp), %l7
-
-        call __exit
-        nop