This patchset entirely replaces the macro TARGET_TB_PCREL with
a field in TranslationBlock.cflags called CF_PCREL, and is a
first step towards removing target-specific assumptions from
non-target/ directories.
The grand goal is to allow for heterogeneous QEMU binaries
consisting of multiple frontends.
RFC: https://lists.nongnu.org/archive/html/qemu-devel/2022-12/msg04518.html
Changes in v2:
* Setting of CF_PCREL (previously patch 3) was split in two and moved
up front (to patch 2 and 3);
* Replacing of TARGET_TB_PCREL (previously patch 2) was split into
four patches (patches [4,7]), one for each affected submodule;
* Removal of TARGET_TB_PCREL (previously patch 3) was moved into
separate patches, one for each submodule (patches [8,10]);
* Patch 11 was introduced in response to feedback, and removes
CF_PCREL checks in functions in tb-jmp-cache.h, these functions were
always called in a context where CF_PCREL was already being checked.
These tb-jmp-cache.h functions were then removed in favour of manual
inlining;
* Patches [12,26] replaces calls to tb_pc() with a member access
tb->pc, the motivation being that tb_pc() was (almost) always called
in a context where CF_PCREL was already being checked;
* Finally patch 27 removes tb_pc() which is no longer used.
Since changes are spread across multiple submodules we ended up with a
lot of patches. Patches [11,27] still need review.
Anton Johansson (27):
include/exec: Introduce `CF_PCREL`
target/i386: set `CF_PCREL` in `x86_cpu_realizefn`
target/arm: set `CF_PCREL` in `arm_cpu_realizefn`
accel/tcg: Replace `TARGET_TB_PCREL` with `CF_PCREL`
include/exec: Replace `TARGET_TB_PCREL` with `CF_PCREL`
target/arm: Replace `TARGET_TB_PCREL` with `CF_PCREL`
target/i386: Replace `TARGET_TB_PCREL` with `CF_PCREL`
include/exec: Remove `TARGET_TB_PCREL` define
target/arm: Remove `TARGET_TB_PCREL` define
target/i386: Remove `TARGET_TB_PCREL` define
accel/tcg: Move jmp-cache `CF_PCREL` checks to caller
accel/tcg: Replace `tb_pc()` with `tb->pc`
target/tricore: Replace `tb_pc()` with `tb->pc`
target/sparc: Replace `tb_pc()` with `tb->pc`
target/sh4: Replace `tb_pc()` with `tb->pc`
target/rx: Replace `tb_pc()` with `tb->pc`
target/riscv: Replace `tb_pc()` with `tb->pc`
target/openrisc: Replace `tb_pc()` with `tb->pc`
target/mips: Replace `tb_pc()` with `tb->pc`
target/microblaze: Replace `tb_pc()` with `tb->pc`
target/loongarch: Replace `tb_pc()` with `tb->pc`
target/i386: Replace `tb_pc()` with `tb->pc`
target/hppa: Replace `tb_pc()` with `tb->pc`
target/hexagon: Replace `tb_pc()` with `tb->pc`
target/avr: Replace `tb_pc()` with `tb->pc`
target/arm: Replace `tb_pc()` with `tb->pc`
include/exec: Remove `tb_pc()`