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authorNathan Sidwell <nathan@codesourcery.com>2009-08-05 12:36:14 +0000
committerNathan Sidwell <nathan@codesourcery.com>2009-08-05 12:36:14 +0000
commiteb7c4339fafb5fcc63a227bf134c0eb97e5d85f7 (patch)
tree77784cd300c5e95ea7bd5ce65a1c715d5dd795cc /ld/testsuite/ld-arm
parent30f8113aa76f852675280e7f1575de4c8018dea4 (diff)
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* elf32-arm.c (elf32_arm_stub_type): Add arm_stub_a8_veneer_lwm. (arm_build_one_stub): Build a8 veneers as a separate pass. (cortex_a8_erratum_scan): Add prev_num_a8_fixes and stub_changed_p parameters. Use them to check if we create a different a8 fixup than the previous pass. (elf32_arm_size_stubs): Move scope of stub_changed and prev_num_a8_fixes into main loop. (elf32_arm_build_stubs): Build a8 veneers in a second pass. ld/testsuite/ * ld-arm/cortex-a8-far-1.s: New. * ld-arm/cortex-a8-far-2.s: New. * ld-arm/cortex-a8-far.d: New. * ld-arm/arm-elf.exp: Add new test.
Diffstat (limited to 'ld/testsuite/ld-arm')
-rw-r--r--ld/testsuite/ld-arm/arm-elf.exp4
-rw-r--r--ld/testsuite/ld-arm/cortex-a8-far-1.s8
-rw-r--r--ld/testsuite/ld-arm/cortex-a8-far-2.s20
-rw-r--r--ld/testsuite/ld-arm/cortex-a8-far.d40
4 files changed, 72 insertions, 0 deletions
diff --git a/ld/testsuite/ld-arm/arm-elf.exp b/ld/testsuite/ld-arm/arm-elf.exp
index de3628e..941ef50 100644
--- a/ld/testsuite/ld-arm/arm-elf.exp
+++ b/ld/testsuite/ld-arm/arm-elf.exp
@@ -205,6 +205,10 @@ set armelftests {
"-EL -Ttext=0x8f00 --fix-cortex-a8" "-EL" {cortex-a8-thumb-target.s cortex-a8-fix-blx-rel.s}
{{objdump -dr cortex-a8-fix-blx-rel-thumb.d}}
"cortex-a8-fix-blx-rel-thumb"}
+ {"Cortex-A8 erratum fix, relocate bl.w and far call"
+ "-EL -Ttext=0x00 --fix-cortex-a8 --defsym far_fn1=0x80000000 --defsym far_fn2=0x80000004 --defsym far_fn=0x7fff0000 --defsym _start=0" "-EL" {cortex-a8-far-1.s cortex-a8-far-2.s}
+ {{objdump -dr cortex-a8-far.d}}
+ "cortex-a8-far"}
{"Unwinding and -gc-sections" "-gc-sections" "" {gc-unwind.s}
{{objdump -sj.data gc-unwind.d}}
"gc-unwind"}
diff --git a/ld/testsuite/ld-arm/cortex-a8-far-1.s b/ld/testsuite/ld-arm/cortex-a8-far-1.s
new file mode 100644
index 0000000..09d3583
--- /dev/null
+++ b/ld/testsuite/ld-arm/cortex-a8-far-1.s
@@ -0,0 +1,8 @@
+ .syntax unified
+ .thumb
+ .globl two
+two:
+ bl far_fn
+ .rept 0x200000
+ .long 0
+ .endr
diff --git a/ld/testsuite/ld-arm/cortex-a8-far-2.s b/ld/testsuite/ld-arm/cortex-a8-far-2.s
new file mode 100644
index 0000000..22fd40f
--- /dev/null
+++ b/ld/testsuite/ld-arm/cortex-a8-far-2.s
@@ -0,0 +1,20 @@
+ .syntax unified
+ .thumb
+three:
+ bl far_fn1
+ bl far_fn2
+ .rept 1016
+ .long 0
+ .endr
+ nop
+label1:
+ eor.w r0, r1, r2
+ beq.w label1
+
+ eor.w r0, r1, r2
+
+ eor.w r0, r1, r2
+ b.w label1
+
+ eor.w r0, r1, r2
+ eor.w r0, r1, r2
diff --git a/ld/testsuite/ld-arm/cortex-a8-far.d b/ld/testsuite/ld-arm/cortex-a8-far.d
new file mode 100644
index 0000000..3d9059d
--- /dev/null
+++ b/ld/testsuite/ld-arm/cortex-a8-far.d
@@ -0,0 +1,40 @@
+
+.*: file format .*
+
+
+Disassembly of section \.text:
+
+00000000 <two>:
+ 0: f000 c802 blx 800008 <__far_fn_from_thumb>
+ ...
+#...
+00800008 <__far_fn_from_thumb>:
+ 800008: e51ff004 ldr pc, \[pc, #-4\] ; 80000c <__far_fn_from_thumb\+0x4>
+ 80000c: 7fff0000 .word 0x7fff0000
+
+00800010 <three>:
+ 800010: f001 e806 blx 801020 <__far_fn1_from_thumb>
+ 800014: f001 e800 blx 801018 <__far_fn2_from_thumb>
+ ...
+ 800ff8: bf00 nop
+
+00800ffa <label1>:
+ 800ffa: ea81 0002 eor.w r0, r1, r2
+ 800ffe: f000 b813 b.w 801028 <__far_fn1_from_thumb\+0x8>
+ 801002: ea81 0002 eor.w r0, r1, r2
+ 801006: ea81 0002 eor.w r0, r1, r2
+ 80100a: f7ff bff6 b.w 800ffa <label1>
+ 80100e: ea81 0002 eor.w r0, r1, r2
+ 801012: ea81 0002 eor.w r0, r1, r2
+ ...
+
+00801018 <__far_fn2_from_thumb>:
+ 801018: e51ff004 ldr pc, \[pc, #-4\] ; 80101c <__far_fn2_from_thumb\+0x4>
+ 80101c: 80000004 .word 0x80000004
+
+00801020 <__far_fn1_from_thumb>:
+ 801020: e51ff004 ldr pc, \[pc, #-4\] ; 801024 <__far_fn1_from_thumb\+0x4>
+ 801024: 80000000 .word 0x80000000
+ 801028: d001 beq.n 80102e <__far_fn1_from_thumb\+0xe>
+ 80102a: f7ff bfea b.w 801002 <label1\+0x8>
+ 80102e: f7ff bfe4 b.w 800ffa <label1>