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author | Alex Bennée <alex.bennee@linaro.org> | 2022-01-05 13:50:00 +0000 |
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committer | Alex Bennée <alex.bennee@linaro.org> | 2022-01-18 16:44:16 +0000 |
commit | e7588237ce8f8115b5ad9a3ecdd46f60d95a461a (patch) | |
tree | 285f3d016b36de47751989aa24dfe558a11d214e | |
parent | 11d3672788b48548811810bdc0f3f7969662572d (diff) | |
download | qemu-e7588237ce8f8115b5ad9a3ecdd46f60d95a461a.zip qemu-e7588237ce8f8115b5ad9a3ecdd46f60d95a461a.tar.gz qemu-e7588237ce8f8115b5ad9a3ecdd46f60d95a461a.tar.bz2 |
linux-user/elfload: add extra logging for hole finding
The various approaches to finding memory holes are quite complicated
to follow especially at a distance. Improve the logging so we can see
exactly what method found the space for the guest memory.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20220105135009.1584676-26-alex.bennee@linaro.org>
-rw-r--r-- | linux-user/elfload.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index fc23a6d..30dbb00 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -2267,6 +2267,9 @@ static void pgb_have_guest_base(const char *image_name, abi_ulong guest_loaddr, if (test != addr) { pgb_fail_in_use(image_name); } + qemu_log_mask(CPU_LOG_PAGE, + "%s: base @ %p for " TARGET_ABI_FMT_ld " bytes\n", + __func__, addr, guest_hiaddr - guest_loaddr); } /** @@ -2309,6 +2312,9 @@ static uintptr_t pgd_find_hole_fallback(uintptr_t guest_size, uintptr_t brk, if (mmap_start != MAP_FAILED) { munmap(mmap_start, guest_size); if (mmap_start == (void *) align_start) { + qemu_log_mask(CPU_LOG_PAGE, + "%s: base @ %p for %" PRIdPTR" bytes\n", + __func__, mmap_start + offset, guest_size); return (uintptr_t) mmap_start + offset; } } @@ -2388,6 +2394,12 @@ static uintptr_t pgb_find_hole(uintptr_t guest_loaddr, uintptr_t guest_size, } free_self_maps(maps); + if (ret != -1) { + qemu_log_mask(CPU_LOG_PAGE, "%s: base @ %" PRIxPTR + " for %" PRIuPTR " bytes\n", + __func__, ret, guest_size); + } + return ret; } @@ -2439,6 +2451,9 @@ static void pgb_static(const char *image_name, abi_ulong orig_loaddr, } guest_base = addr; + + qemu_log_mask(CPU_LOG_PAGE, "%s: base @ %"PRIxPTR" for %" PRIuPTR" bytes\n", + __func__, addr, hiaddr - loaddr); } static void pgb_dynamic(const char *image_name, long align) @@ -2495,6 +2510,9 @@ static void pgb_reserved_va(const char *image_name, abi_ulong guest_loaddr, "using -R option)", reserved_va, test, strerror(errno)); exit(EXIT_FAILURE); } + + qemu_log_mask(CPU_LOG_PAGE, "%s: base @ %p for %lu bytes\n", + __func__, addr, reserved_va); } void probe_guest_base(const char *image_name, abi_ulong guest_loaddr, |