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* [PATCH] linux-user: Add missing termios baud rates
@ 2025-12-02  5:14 Vivian Wang
  2025-12-02 11:52 ` Andreas Schwab
  0 siblings, 1 reply; 3+ messages in thread
From: Vivian Wang @ 2025-12-02  5:14 UTC (permalink / raw)
  To: qemu-devel
  Cc: Laurent Vivier, Luca Bonissi, Andreas Schwab, Richard Henderson,
	Vivian Wang

Add missing definitions for TARGET_BOTHER for alpha, hppa, ppc, sh4,
sparc, and also missing standard baud rates for hppa.

Also add the missing baud rates in cflag_tbl.

In particular, BOTHER is required for the glibc test tst-termios-linux.

Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn>
---
checkpatch.pl complains about tabs in linux-user/syscall.c, which I have
used for consistency with existing code. I'm not sure how to handle
this.

The test tst-termios-linux requires termios2, which is provided by [1].
After that the test failure reported in [2] should be resolved by this
patch.

[1]: https://lore.kernel.org/r/745f18b6-ee62-4903-9a56-dcb903b610cf@bonslack.org/
[2]: https://lore.kernel.org/r/87cy606842.fsf@igel.home/
---
 linux-user/alpha/termbits.h |  1 +
 linux-user/hppa/termbits.h  | 12 ++++++++++++
 linux-user/ppc/termbits.h   |  1 +
 linux-user/sh4/termbits.h   |  1 +
 linux-user/sparc/termbits.h |  1 +
 linux-user/syscall.c        | 27 +++++++++++++++++++++++++++
 6 files changed, 43 insertions(+)

diff --git a/linux-user/alpha/termbits.h b/linux-user/alpha/termbits.h
index 4a4b1e96f2..ad5362b89e 100644
--- a/linux-user/alpha/termbits.h
+++ b/linux-user/alpha/termbits.h
@@ -126,6 +126,7 @@ struct target_termios {
 #define TARGET_B3000000  00034
 #define TARGET_B3500000  00035
 #define TARGET_B4000000  00036
+#define TARGET_BOTHER    00037
 
 #define TARGET_CSIZE	00001400
 #define   TARGET_CS5	00000000
diff --git a/linux-user/hppa/termbits.h b/linux-user/hppa/termbits.h
index 11fd4eed62..f55748534f 100644
--- a/linux-user/hppa/termbits.h
+++ b/linux-user/hppa/termbits.h
@@ -100,10 +100,22 @@ struct target_termios {
 #define TARGET_HUPCL   0002000
 #define TARGET_CLOCAL  0004000
 #define TARGET_CBAUDEX 0010000
+#define  TARGET_BOTHER  0010000
 #define  TARGET_B57600  0010001
 #define  TARGET_B115200 0010002
 #define  TARGET_B230400 0010003
 #define  TARGET_B460800 0010004
+#define  TARGET_B500000 0010005
+#define  TARGET_B576000 0010006
+#define  TARGET_B921600 0010007
+#define  TARGET_B1000000 0010010
+#define  TARGET_B1152000 0010011
+#define  TARGET_B1500000 0010012
+#define  TARGET_B2000000 0010013
+#define  TARGET_B2500000 0010014
+#define  TARGET_B3000000 0010015
+#define  TARGET_B3500000 0010016
+#define  TARGET_B4000000 0010017
 #define TARGET_CIBAUD    002003600000  /* input baud rate (not used) */
 #define TARGET_CMSPAR    010000000000  /* mark or space (stick) parity */
 #define TARGET_CRTSCTS   020000000000  /* flow control */
diff --git a/linux-user/ppc/termbits.h b/linux-user/ppc/termbits.h
index eb226e0999..71b398c83a 100644
--- a/linux-user/ppc/termbits.h
+++ b/linux-user/ppc/termbits.h
@@ -129,6 +129,7 @@ struct target_termios {
 #define TARGET_B3000000  00034
 #define TARGET_B3500000  00035
 #define TARGET_B4000000  00036
+#define TARGET_BOTHER    00037
 
 #define TARGET_CSIZE	00001400
 #define   TARGET_CS5	00000000
diff --git a/linux-user/sh4/termbits.h b/linux-user/sh4/termbits.h
index 28e79f2c9a..1f7c76e839 100644
--- a/linux-user/sh4/termbits.h
+++ b/linux-user/sh4/termbits.h
@@ -120,6 +120,7 @@ struct target_termios {
 #define TARGET_HUPCL   0002000
 #define TARGET_CLOCAL  0004000
 #define TARGET_CBAUDEX 0010000
+#define TARGET_BOTHER 0010000
 #define TARGET_B57600 0010001
 #define TARGET_B115200 0010002
 #define TARGET_B230400 0010003
diff --git a/linux-user/sparc/termbits.h b/linux-user/sparc/termbits.h
index 704bee1c42..c2082ebd27 100644
--- a/linux-user/sparc/termbits.h
+++ b/linux-user/sparc/termbits.h
@@ -128,6 +128,7 @@ struct target_termios {
 #define TARGET_HUPCL	  0x00000400
 #define TARGET_CLOCAL	  0x00000800
 #define TARGET_CBAUDEX   0x00001000
+#define  TARGET_BOTHER   0x00001000
 /* We'll never see these speeds with the Zilogs, but for completeness... */
 #define  TARGET_B57600   0x00001001
 #define  TARGET_B115200  0x00001002
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 2060e561a2..9cceb22348 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5779,6 +5779,33 @@ static const bitmask_transtbl cflag_tbl[] = {
 	{ TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
 	{ TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
 	{ TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
+	{ TARGET_CBAUD, TARGET_B500000, CBAUD, B500000 },
+	{ TARGET_CBAUD, TARGET_B576000, CBAUD, B576000 },
+	{ TARGET_CBAUD, TARGET_B921600, CBAUD, B921600 },
+	{ TARGET_CBAUD, TARGET_B1000000, CBAUD, B1000000 },
+	{ TARGET_CBAUD, TARGET_B1152000, CBAUD, B1152000 },
+	{ TARGET_CBAUD, TARGET_B1500000, CBAUD, B1500000 },
+	{ TARGET_CBAUD, TARGET_B2000000, CBAUD, B2000000 },
+
+	/* SPARC in particular is missing these higher baud rates */
+
+#if defined(TARGET_B2500000) && defined(B2500000)
+	{ TARGET_CBAUD, TARGET_B2500000, CBAUD, B2500000 },
+#endif
+
+#if defined(TARGET_B3000000) && defined(B3000000)
+	{ TARGET_CBAUD, TARGET_B3000000, CBAUD, B3000000 },
+#endif
+
+#if defined(TARGET_B3500000) && defined(B3500000)
+	{ TARGET_CBAUD, TARGET_B3500000, CBAUD, B3500000 },
+#endif
+
+#if defined(TARGET_B4000000) && defined(B4000000)
+	{ TARGET_CBAUD, TARGET_B4000000, CBAUD, B4000000 },
+#endif
+
+	{ TARGET_CBAUD, TARGET_BOTHER, CBAUD, BOTHER },
 	{ TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
 	{ TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
 	{ TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },

---
base-commit: e5eb98b3cae77ffe7d142229a8225cedd8b78f07
change-id: 20251202-linux-user-higher-baud-rates-242ca0fb42f3

Best regards,
-- 
Vivian "dramforever" Wang



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2025-12-02  5:14 [PATCH] linux-user: Add missing termios baud rates Vivian Wang
2025-12-02 11:52 ` Andreas Schwab
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