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LATX, opt: batch load 4 × 4KB pages in AOT loadee #294

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Merged
luzeng87 merged 1 commit into from
May 21, 2026
Merged

LATX, opt: batch load 4 × 4KB pages in AOT loadee #294

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56 changes: 29 additions & 27 deletions target/i386/latx/sbt/aot_recover_tb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -290,9 +290,7 @@ static bool check_ir1(target_ulong seg_begin, struct aot_tb *p_aot_tbs, int num,

#include<sys/syscall.h>

/* static int load_sum_tb; */

int load_page_4(target_ulong pc, uint32_t cflags, seg_info *info)
inline int load_page_4(target_ulong pc, uint32_t cflags, seg_info *info)
{
int ret = load_page(pc, cflags, info);
pc += TARGET_PAGE_SIZE;
Expand All @@ -301,11 +299,34 @@ int load_page_4(target_ulong pc, uint32_t cflags, seg_info *info)
load_page(pc, cflags, info);
pc += TARGET_PAGE_SIZE;
load_page(pc, cflags, info);
try_aot_link();
return ret;
}


static int load_all_seg(uint32_t cflags, seg_info *info)
{
info->seg_flag |= SEG_RUNNING;
for (target_ulong addr = info->seg_begin; addr < info->seg_end;
addr += TARGET_PAGE_SIZE) {
load_page(addr, cflags, info);
}
try_aot_link();
return 1;
}

inline int load_page(target_ulong pc, uint32_t cflags, seg_info *info)
{
if (pc < info->seg_begin || pc >= info->seg_end) {
return 0;
}
int page_state = page_get_page_state(pc);
if (page_state >= PAGE_LOADED || ((page_state == PAGE_SMC)
&& (((aot_header *)info->buffer)->aot_file_type == ELF_AOT_FILE))) {
return 0;
}
page_set_page_state(pc, PAGE_LOADED);

aot_buffer = info->buffer;
aot_segment *p_segment = (aot_segment *)info->p_segment;
page_table_info *pt = (page_table_info *)
Expand Down Expand Up @@ -374,32 +395,13 @@ int load_aot(target_ulong pc, uint32_t cflags)
return 0;
}

int page_state = page_get_page_state(pc);

if (page_state >= PAGE_LOADED || ((page_state == PAGE_SMC)
&& (((aot_header *)info->buffer)->aot_file_type == ELF_AOT_FILE))) {
return 0;
}

if (option_aot == 2 &&
(!(info->seg_flag & SEG_RUNNING) || page_state == PAGE_FLUSH)) {
info->seg_flag |= SEG_RUNNING;
page_set_page_state_range(info->seg_begin & TARGET_PAGE_MASK,
info->seg_end & TARGET_PAGE_MASK, PAGE_LOADED);
for (target_ulong addr = info->seg_begin; addr < info->seg_end;
addr += TARGET_PAGE_SIZE) {
load_page(addr, cflags, info);
}
try_aot_link();
return 1;
if (option_aot == 2 && (!(info->seg_flag & SEG_RUNNING)
|| (page_get_page_state(pc) == PAGE_FLUSH))) {
return load_all_seg(cflags, info);
} else {
page_set_page_state(pc, PAGE_LOADED);
int ret = load_page(pc, cflags, info);
if (ret) {
try_aot_link();
return ret;
}
return load_page_4(pc, cflags, info);
}

return 0;
}

Expand Down