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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260228-abyss-mmap-relocation-v1-3-c8ec0476894b@astrafall.org> References: <20260228-abyss-mmap-relocation-v1-0-c8ec0476894b@astrafall.org> In-Reply-To: <20260228-abyss-mmap-relocation-v1-0-c8ec0476894b@astrafall.org> To: qemu-devel@nongnu.org Cc: Laurent Vivier , Warner Losh , =?utf-8?q?Alex_R=C3=B8nne_Petersen?= , Richard Henderson , Pierrick Bouvier , Kyle Evans , =?utf-8?q?Alex_Benn=C3=A9e?= , Bingwu Zhang X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2765; i=xtex@astrafall.org; h=from:subject:message-id; bh=VBZ7OSO8iNQWFEeFysNod/fZxXwETdJ5gYcACxtEZfo=; b=owGbwMvMwCW2U4Ij7wZL9ETG02pJDJkLT01VmHJNSSXGh4Hp5MuJ4tHLWLdMOrFcS/CHZdDk1 hthycu2dExkYRDjYrAUU2QpMmzwZtVJ5xddVi4LM4eVCWSItEgDAwMDAwsDX25iXqmRjpGeqbah nqGhjpGOEQMXpwBMdTkLw19ZTn6H0w+9P9ifu9rEyiZ7bnv9TosfNz4n79thEa/DECLGyPDcTD/ mbcrrprkzVMwXpL4zq78RvqpIWOzmqwyLd1tiXPgA X-Developer-Key: i=xtex@astrafall.org; a=openpgp; fpr=7231804B052C670F15A6771DB918086ED8045B91 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=157.180.15.194; envelope-from=xtex@envs.net; helo=mail.envs.net X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.706, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.401, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 27 Feb 2026 12:17:25 -0500 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @envs.net) X-ZM-MESSAGEID: 1772212702222158500 From: Bingwu Zhang Useful for debugging Signed-off-by: Bingwu Zhang --- tests/tcg/multiarch/test-mmap.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/tests/tcg/multiarch/test-mmap.c b/tests/tcg/multiarch/test-mma= p.c index e297f4b1e932..88f7a04101a3 100644 --- a/tests/tcg/multiarch/test-mmap.c +++ b/tests/tcg/multiarch/test-mmap.c @@ -442,19 +442,19 @@ void check_invalid_mmaps(void) =20 /* Attempt to map a zero length page. */ addr =3D mmap(NULL, 0, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - fprintf(stdout, "%s addr=3D%p", __func__, (void *)addr); + fprintf(stdout, "%s addr=3D%p errno=3D%d\n", __func__, (void *)addr, e= rrno); fail_unless(addr =3D=3D MAP_FAILED); fail_unless(errno =3D=3D EINVAL); =20 /* Attempt to map a over length page. */ addr =3D mmap(NULL, -4, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - fprintf(stdout, "%s addr=3D%p", __func__, (void *)addr); + fprintf(stdout, "%s addr=3D%p errno=3D%d\n", __func__, (void *)addr, e= rrno); fail_unless(addr =3D=3D MAP_FAILED); fail_unless(errno =3D=3D ENOMEM); =20 /* Attempt to remap a region which exceeds the bounds of memory. */ addr =3D mremap((void *)((uintptr_t)pagesize * 10), SIZE_MAX & ~(size_= t)pagemask, pagesize, 0); - fprintf(stdout, "%s mremap addr=3D%p", __func__, (void *)addr); + fprintf(stdout, "%s mremap addr=3D%p errno=3D%d\n", __func__, (void *)= addr, errno); fail_unless(addr =3D=3D MAP_FAILED); fail_unless(errno =3D=3D EFAULT); =20 @@ -465,8 +465,11 @@ void check_shrink_mmaps(void) { unsigned char *a, *b, *c; a =3D mmap(NULL, pagesize * 2, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS,= -1, 0); + fprintf(stdout, "%s addr=3D%p errno=3D%d\n", __func__, (void *)a, errn= o); b =3D mmap(NULL, pagesize * 2, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS,= -1, 0); + fprintf(stdout, "%s addr=3D%p errno=3D%d\n", __func__, (void *)b, errn= o); c =3D mmap(NULL, pagesize * 2, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS,= -1, 0); + fprintf(stdout, "%s addr=3D%p errno=3D%d\n", __func__, (void *)c, errn= o); =20 fail_unless(a !=3D MAP_FAILED); fail_unless(b !=3D MAP_FAILED); @@ -479,6 +482,7 @@ void check_shrink_mmaps(void) =20 /* Shrink the middle mapping in-place; the others should be unaffected= */ b =3D mremap(b, pagesize * 2, pagesize, 0); + fprintf(stdout, "%s mremap addr=3D%p errno=3D%d\n", __func__, (void *)= b, errno); fail_unless(b !=3D MAP_FAILED); =20 /* Ensure we can still access all valid mappings */ @@ -489,6 +493,8 @@ void check_shrink_mmaps(void) munmap(a, 2 * pagesize); munmap(b, pagesize); munmap(c, 2 * pagesize); + + fprintf(stdout, " passed\n"); } =20 int main(int argc, char **argv) --=20 2.52.0