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2005-08-16 Shaun Jackman <sjackman@gmail.com>

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* arm/syscalls.c (initialise_monitor_handles): Set
        monitor_stderr to the result of SWI_open(":tt", "a")
        instead of simply duplicating stdout.
This commit is contained in:
Jeff Johnston
2005-08-16 18:05:35 +00:00
parent e357cc5911
commit e448b01f6b
2 changed files with 32 additions and 2 deletions
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6
libgloss/ChangeLog
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@@ -1,3 +1,9 @@
2005-08-16 Shaun Jackman <sjackman@gmail.com>
* arm/syscalls.c (initialise_monitor_handles): Set
monitor_stderr to the result of SWI_open(":tt", "a")
instead of simply duplicating stdout.
2005-08-10 DJ Delorie <dj@redhat.com>
* configure.in: Add m32c support.

28
libgloss/arm/syscalls.c
View File

@@ -133,6 +133,16 @@ initialise_monitor_handles (void)
{
int i;
/* Open the standard file descriptors by opening the special
* teletype device, ":tt", read-only to obtain a descritpor for
* standard input and write-only to obtain a descriptor for standard
* output. Finally, open ":tt" in append mode to obtain a descriptor
* for standard error. Since this is a write mode, most kernels will
* probably return the same value as for standard output, but the
* kernel can differentiate the two using the mode flag and return a
* different descriptor for standard error.
*/
#ifdef ARM_RDI_MONITOR
int volatile block[3];
@@ -144,7 +154,12 @@ initialise_monitor_handles (void)
block[0] = (int) ":tt";
block[2] = 3; /* length of filename */
block[1] = 4; /* mode "w" */
monitor_stdout = monitor_stderr = do_AngelSWI (AngelSWI_Reason_Open, (void *) block);
monitor_stdout = do_AngelSWI (AngelSWI_Reason_Open, (void *) block);
block[0] = (int) ":tt";
block[2] = 3; /* length of filename */
block[1] = 8; /* mode "a" */
monitor_stderr = do_AngelSWI (AngelSWI_Reason_Open, (void *) block);
#else
int fh;
const char * name;
@@ -161,7 +176,14 @@ initialise_monitor_handles (void)
: "=r"(fh)
: "i" (SWI_Open),"r"(name)
: "r0","r1");
monitor_stdout = monitor_stderr = fh;
monitor_stdout = fh;
name = ":tt";
asm ("mov r0,%2; mov r1, #8; swi %a1; mov %0, r0"
: "=r"(fh)
: "i" (SWI_Open),"r"(name)
: "r0","r1");
monitor_stderr = fh;
#endif
for (i = 0; i < MAX_OPEN_FILES; i ++)
@@ -171,6 +193,8 @@ initialise_monitor_handles (void)
openfiles[0].pos = 0;
openfiles[1].handle = monitor_stdout;
openfiles[1].pos = 0;
openfiles[2].handle = monitor_stderr;
openfiles[2].pos = 0;
}
static int