diff options
Diffstat (limited to 'packages/uclibc/uclibc-0.9.28/thumb-asm-swi.patch')
| -rw-r--r-- | packages/uclibc/uclibc-0.9.28/thumb-asm-swi.patch | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/packages/uclibc/uclibc-0.9.28/thumb-asm-swi.patch b/packages/uclibc/uclibc-0.9.28/thumb-asm-swi.patch new file mode 100644 index 0000000000..35e53caa5c --- /dev/null +++ b/packages/uclibc/uclibc-0.9.28/thumb-asm-swi.patch @@ -0,0 +1,153 @@ +# WARNING: nasty hack. Because sysnum.h produces thumb syscall +# numbers when compiled in thumb mode the arm assembler (which is arm +# even in thumb mode) needs to write the OS syscall base back into +# the swi calls. This is done here just by orring in the correct +# value. This is a hack - it might be better to add a define to +# sysnum.h to force it to output arm (not thumb) values on demand - +# but this hack is fairly safe (rmk would have to change the syscall +# base, this seems unlikely). +# +# The patch also fixes up the .align directives to '2' (i.e. a multiple +# of 4) not '4' (a multiple of 16 - apparently an error since it seems +# to be unnecessary, there is no advantage here in cache line alignment). +diff -u uClibc-0.9.28/libc/sysdeps/linux/arm/orig/__longjmp.S uClibc-0.9.28/libc/sysdeps/linux/arm/__longjmp.S +--- uClibc-0.9.28/libc/sysdeps/linux/arm/orig/__longjmp.S 2005-09-18 18:41:36.870986621 -0700 ++++ uClibc-0.9.28/libc/sysdeps/linux/arm/__longjmp.S 2005-09-18 19:01:26.741860474 -0700 +@@ -25,7 +25,7 @@ + + .global __longjmp + .type __longjmp,%function +-.align 4 ++.align 2 + __longjmp: + mov ip, r0 /* save jmp_buf pointer */ + +diff -u uClibc-0.9.28/libc/sysdeps/linux/arm/orig/bsd-_setjmp.S uClibc-0.9.28/libc/sysdeps/linux/arm/bsd-_setjmp.S +--- uClibc-0.9.28/libc/sysdeps/linux/arm/orig/bsd-_setjmp.S 2005-09-18 18:41:36.870986621 -0700 ++++ uClibc-0.9.28/libc/sysdeps/linux/arm/bsd-_setjmp.S 2005-09-18 19:01:31.982190228 -0700 +@@ -27,7 +27,7 @@ + + .global _setjmp + .type _setjmp,%function +-.align 4 ++.align 2 + _setjmp: + mov r1, #0 + #ifdef __PIC__ +diff -u uClibc-0.9.28/libc/sysdeps/linux/arm/orig/bsd-setjmp.S uClibc-0.9.28/libc/sysdeps/linux/arm/bsd-setjmp.S +--- uClibc-0.9.28/libc/sysdeps/linux/arm/orig/bsd-setjmp.S 2005-09-18 18:41:36.870986621 -0700 ++++ uClibc-0.9.28/libc/sysdeps/linux/arm/bsd-setjmp.S 2005-09-18 19:01:40.166705247 -0700 +@@ -27,7 +27,7 @@ + + .global setjmp + .type setjmp,%function +-.align 4 ++.align 2 + setjmp: + mov r1, #1 + #ifdef __PIC__ +diff -u uClibc-0.9.28/libc/sysdeps/linux/arm/orig/clone.S uClibc-0.9.28/libc/sysdeps/linux/arm/clone.S +--- uClibc-0.9.28/libc/sysdeps/linux/arm/orig/clone.S 2005-09-18 18:41:36.870986621 -0700 ++++ uClibc-0.9.28/libc/sysdeps/linux/arm/clone.S 2005-09-18 19:01:45.427036258 -0700 +@@ -30,7 +30,7 @@ + .text + .global __clone + .type __clone,%function +-.align 4 ++.align 2 + __clone: + @ sanity check args + cmp r0, #0 +@@ -48,7 +48,7 @@ + @ get flags + mov r0, r2 + @ new sp is already in r1 +- swi __NR_clone ++ swi (__NR_clone | 0x900000) + movs a1, a1 + blt __error + #if defined(__THUMB_INTERWORK__) +diff -u uClibc-0.9.28/libc/sysdeps/linux/arm/orig/mmap64.S uClibc-0.9.28/libc/sysdeps/linux/arm/mmap64.S +--- uClibc-0.9.28/libc/sysdeps/linux/arm/orig/mmap64.S 2005-09-18 18:41:36.874986873 -0700 ++++ uClibc-0.9.28/libc/sysdeps/linux/arm/mmap64.S 2005-09-18 19:02:03.692185612 -0700 +@@ -27,7 +27,7 @@ + .text + .global mmap64 + .type mmap64,%function +-.align 4 ++.align 2 + mmap64: + stmfd sp!, {r4, r5, lr} + ldr r5, [sp, $16] +@@ -40,7 +40,7 @@ + movs ip, ip, lsr $12 + bne .Linval @ check for overflow + mov ip, r0 +- swi __NR_mmap2 ++ swi (__NR_mmap2 | 0x900000) + cmn r0, $4096 + ldmccfd sp!, {r4, r5, pc} + cmn r0, $ENOSYS +diff -u uClibc-0.9.28/libc/sysdeps/linux/arm/orig/setjmp.S uClibc-0.9.28/libc/sysdeps/linux/arm/setjmp.S +--- uClibc-0.9.28/libc/sysdeps/linux/arm/orig/setjmp.S 2005-09-18 18:41:36.874986873 -0700 ++++ uClibc-0.9.28/libc/sysdeps/linux/arm/setjmp.S 2005-09-18 19:02:08.956516875 -0700 +@@ -24,7 +24,7 @@ + + .global __sigsetjmp + .type __sigsetjmp,%function +-.align 4 ++.align 2 + __sigsetjmp: + /* Save registers */ + #if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__ +diff -u uClibc-0.9.28/libc/sysdeps/linux/arm/orig/sigrestorer.S uClibc-0.9.28/libc/sysdeps/linux/arm/sigrestorer.S +--- uClibc-0.9.28/libc/sysdeps/linux/arm/orig/sigrestorer.S 2005-09-18 18:41:36.874986873 -0700 ++++ uClibc-0.9.28/libc/sysdeps/linux/arm/sigrestorer.S 2005-09-18 19:02:18.041088531 -0700 +@@ -24,17 +24,17 @@ + + .global __default_sa_restorer + .type __default_sa_restorer,%function +-.align 4 ++.align 2 + __default_sa_restorer: +- swi __NR_sigreturn ++ swi (__NR_sigreturn | 0x900000) + + + #ifdef __NR_rt_sigreturn + + .global __default_rt_sa_restorer + .type __default_rt_sa_restorer,%function +-.align 4 ++.align 2 + __default_rt_sa_restorer: +- swi __NR_rt_sigreturn ++ swi (__NR_rt_sigreturn | 0x900000) + + #endif +diff -u uClibc-0.9.28/libc/sysdeps/linux/arm/orig/vfork.S uClibc-0.9.28/libc/sysdeps/linux/arm/vfork.S +--- uClibc-0.9.28/libc/sysdeps/linux/arm/orig/vfork.S 2005-09-18 18:41:36.874986873 -0700 ++++ uClibc-0.9.28/libc/sysdeps/linux/arm/vfork.S 2005-09-18 19:02:23.561435905 -0700 +@@ -28,11 +28,11 @@ + .text + .global vfork + .type vfork,%function +-.align 4 ++.align 2 + vfork: + + #ifdef __NR_vfork +- swi __NR_vfork ++ swi (__NR_vfork | 0x900000) + cmn r0, #4096 + #if defined(__THUMB_INTERWORK__) + bxcc lr +@@ -47,7 +47,7 @@ + #endif + + /* If we don't have vfork, use fork. */ +- swi __NR_fork ++ swi (__NR_fork | 0x900000) + cmn r0, #4096 + + /* Syscal worked. Return to child/parent */ |