Changeset 66446 in vbox for trunk/src/VBox/ValidationKit/bootsectors/Config.kmk

Timestamp:

Apr 5, 2017 6:00:17 PM (8 years ago)

Author:

vboxsync

Message:

bs3kit: Various fixes related to using the BS3X0TEXT16, BS3X1TEXT16, and BS3RMTEXT16 segments. Ran into problems with switch jump tables lookups being off by 0x10 bytes (or 0x1c, at least it should've been) because the fixups were relative to BS3X0TEXT16 and not the BS3GROUPX0TEXT16 group, meaning that the eye-catcher in BS3X0TEXT16_START offsetted all addressing made by the compiler. Wanted to adjust the framing of the FIXUPP records to be relative to the the group instead of target, but gave up as it would've a couple of days. Not sure if removing the data from BS3X0TEXT16_START is problem free either, but for not it seems to work for bs3-cpu-generated-1.

File:

• trunk/src/VBox/ValidationKit/bootsectors/Config.kmk (modified) (2 diffs)

trunk/src/VBox/ValidationKit/bootsectors/Config.kmk

@@ -575 +575 @@
 #       -oi                    Inline instrinsics functions.
 #       -ol                    Loop optimizations.
+#       -oh                    Expensive optimizations. (saves a byte or two)
 #       -or                    Reorder for best pipeline.
 #       -os                    Favor size over speed.
@@ -602 +603 @@
 TEMPLATE_VBoxBS3KitImg_CXXTOOL      = Bs3Ow16
 TEMPLATE_VBoxBS3KitImg_CFLAGS       = $(if $(BS3KIT_SEGNM_DATA16),-nd=$(BS3KIT_SEGNM_DATA16),) \
-        -nt=BS3TEXT16 -nc=$(BS3KIT_CLASS_CODE16) -ecc -q -0 -wx -zl -zdp -zu -ml $(BS3_OW_DBG_OPT) -s -oa -ob -of -oi -ol -or -os -d+
+        -nt=BS3TEXT16 -nc=$(BS3KIT_CLASS_CODE16) -ecc -q -0 -wx -zl -zdp -zu -ml $(BS3_OW_DBG_OPT) -s -oa -ob -of -oi -ol -or -os -oh -d+
 TEMPLATE_VBoxBS3KitImg_CXXFLAGS     = $(if $(BS3KIT_SEGNM_DATA16),-nd=$(BS3KIT_SEGNM_DATA16),) \
-        -nt=BS3TEXT16 -nc=$(BS3KIT_CLASS_CODE16) -ecc -q -0 -wx -zl -zdp -zu -ml $(BS3_OW_DBG_OPT) -s -oa -ob -of -oi -ol -or -os -d+
+        -nt=BS3TEXT16 -nc=$(BS3KIT_CLASS_CODE16) -ecc -q -0 -wx -zl -zdp -zu -ml $(BS3_OW_DBG_OPT) -s -oa -ob -of -oi -ol -or -os -oh -d+
 TEMPLATE_VBoxBS3KitImg_CDEFS        = ARCH_BITS=16 RT_ARCH_X86